一：app介绍
理财小助手是一款利用Android studio软件实现的APP，可以录入每天的消费项目以及消费金额，同时也可以查找消费记录、统计消费总额。我用到的Android studio版本如下：
二、模块设计
下面是我实现的一些模块：
1：进入理财小助手app时会有一个登陆界面，包括邮箱和密码，邮箱和密码都有限制，如邮箱必须带有@符号，而密码必须不少于特定位数。
2：如果没有登录的邮箱或者密码时选择注册账号：
3：进入理财app先进入理财记录的首页：（此时还没有添加一条记录，首页显示为空）
4：添加一条消费记录，消费主体是lunch，消费金额是12，消费感受是good
5：点击左上方的箭头会默认自动保存此记录，如果点击右上方的X，就会删去这条记录，这样，在理财app的主页就会显示添加的消费记录：
6：也可以双击每一条记录，这样就会出现此记录的详细信息，比如我选择了第一条记录：
7：查看第五个步骤可以发现第五个步骤的图像右上方有三个符号，第一个+符号是添加一条记录，第二个符号是查找消息记录，第三个符号是可以统计金钱总额也可以显示出所有的消费记录：
第一个符号：
第二个符号查找记录：
第三符号有两个功能：
（1）：统计功能：
比如统计今天记录：2022年1月15日
（2）显示记录的条数：如下，显示了添加的两条记录
三、代码设计
此代码设计分为两个部分，一个为前端的局面分布，一个为后端的java编写。如下：
1：java文件夹里面包含的是后端的代码，其中包含了database和wengxiaoyang.personalfinanceassistant。其中包括的类如下图所示：
2：res文件夹里面包括的是图片和前端代码，包括button或者布局等，是安卓必须掌握的基础知识点。
其中可可爱爱的蜡笔小新就来自与drawable，当然也可以换成其他的图片啦。在这里插入图片描述
layout里面存放的就是整个app的布局：
menu用来控制右上方的三个符号功能：
values用来控制button按钮：
注意：其他没有特别说明就是图片。
四、详细代码
1：先贴入java后端的代码
database中的ManageBaseHelp类
package database;
//数据库的继承类，并重写两种方法
import android.content.Context;
import android.database.sqlite.SQLiteDatabase;
import android.database.sqlite.SQLiteOpenHelper;
import database.ManageDbSchema.ManageTable;
import database.ManageDbSchema.ManageTable2;
//打开数据库
public class ManageBaseHelper extends SQLiteOpenHelper {
private static final int VERSION = 1;
private static final String DATABASE_NAME = "manageBase.db";
//在此构造方法中用super方法调用父类的构造方法。传入四个参数，上下文对象，数据库名称，null，数据库版本
public ManageBaseHelper(Context context) {
super(context, DATABASE_NAME, null, VERSION);
}
//重写子类的onCreate方法
@Override
public void onCreate(SQLiteDatabase db) {
// manage表，暴力名称，金钱，支付方式等
db.execSQL("create table " + ManageTable.NAME + "(" +
"_id integer primary key autoincrement, " +
ManageTable.Cols.UUID + ", " +
ManageTable.Cols.TITLE + ", " +
ManageTable.Cols.MONEY + ", " +
ManageTable.Cols.DATE + ", " +
ManageTable.Cols.PAYMETHOD + ", " +
ManageTable.Cols.REMARK + ")"
);
// 账号密码表
db.execSQL("create table " + ManageTable2.NAME2 + "(" +
"_id integer primary key autoincrement, " +
ManageTable2.Cols2.UUID + ", " +
ManageTable2.Cols2.ACCOUNT + ", " +
ManageTable2.Cols2.PASSWORD + ")"
);
}
//重写子类的onUpgrade方法
@Override
public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
}
}ManageCursorWrapper类
package database;
//将用户信息和消费消息写入数据库
import android.database.Cursor;
import android.database.CursorWrapper;
import java.util.Date;
import java.util.UUID;
import database.ManageDbSchema.ManageTable;
import database.ManageDbSchema.ManageTable2;
import wengxiaoyang.personalfinanceassistant.Login;
import wengxiaoyang.personalfinanceassistant.Manage;
//获得manage和login表格填写时的信息，并把他们放入数据库里面
public class ManageCursorWrapper extends CursorWrapper {
public ManageCursorWrapper(Cursor cursor) {
super(cursor);
}
public Manage getManage() {
// 获得manage信息
String uuidString = getString(getColumnIndex(ManageTable.Cols.UUID));//得到相对应的列索引，并赋值给string对象
String title = getString(getColumnIndex(ManageTable.Cols.TITLE));
String money = getString(getColumnIndex(ManageTable.Cols.MONEY));
Long date = getLong(getColumnIndex(ManageTable.Cols.DATE));
int payMethod = getInt(getColumnIndex(ManageTable.Cols.PAYMETHOD));
String remark = getString(getColumnIndex(ManageTable.Cols.REMARK));
// 将数据写入数据库
Manage manage = new Manage(UUID.fromString(uuidString));
manage.setTitle(title);
manage.setMoney(money);
manage.setDate(new Date(date));
manage.setPayMethod(payMethod);
manage.setRemark(remark);
return manage;
}
public Login getLogin() {
// 获得登录信息
String uuidString = getString(getColumnIndex(ManageTable2.Cols2.UUID));
String account = getString(getColumnIndex(ManageTable2.Cols2.ACCOUNT));
String password = getString(getColumnIndex(ManageTable2.Cols2.PASSWORD));
// 将登录信息存入数据库
Login login = new Login(UUID.fromString(uuidString));
login.setAccount(account);
login.setPassword(password);
return login;
}
}ManageDbSchema类
package database;
public class ManageDbSchema {
// Manage表，定义常量
public static final class ManageTable {
public static final String NAME = "manages";
public static final class Cols {
public static final String UUID = "uuid";
public static final String TITLE = "title";
public static final String MONEY = "money";
public static final String DATE = "date";
public static final String PAYMETHOD = "paymethod";
public static final String REMARK = "remark";
}
}
// 账号密码表
public static final class ManageTable2 {
public static final String NAME2 = "login";
public static final class Cols2 {
public static final String UUID = "uuid";
public static final String ACCOUNT = "account";
public static final String PASSWORD = "password";
}
}
}然后开始编写wengxiaoyang.personalfinanceassistant部分
DatePickerFragment类
package wengxiaoyang.personalfinanceassistant;
import android.app.Activity;
import android.app.AlertDialog;
import android.app.Dialog;
import android.content.DialogInterface;
import android.content.Intent;
import android.os.Bundle;
import android.support.annotation.NonNull;
import android.support.v4.app.DialogFragment;
import android.view.LayoutInflater;
import android.view.View;
import android.widget.DatePicker;
import java.util.Calendar;
import java.util.Date;
import java.util.GregorianCalendar;
//记录花销的日期（年月日）
public class DatePickerFragment extends DialogFragment {
public static final String EXTRA_DATE = "wengxiaoyang.hziee.criminalintent.date";
private static final String ARG_DATE = "date";
private DatePicker mDatePicker;
public static DatePickerFragment newInstance(Date date) {
Bundle args = new Bundle();
args.putSerializable(ARG_DATE, date);
DatePickerFragment fragment = new DatePickerFragment();
fragment.setArguments(args);
return fragment;
}
@NonNull
@Override
public Dialog onCreateDialog(Bundle savedInstanceState) {
Date date = (Date) getArguments().getSerializable(ARG_DATE);
Calendar calendar = Calendar.getInstance();
calendar.setTime(date);
int year = calendar.get(Calendar.YEAR);
int month = calendar.get(Calendar.MONTH);
int day = calendar.get(Calendar.DAY_OF_MONTH);
View v = LayoutInflater.from(getActivity()).inflate(R.layout.dialog_date, null);
mDatePicker = v.findViewById(R.id.dialog_date_picker);
mDatePicker.init(year, month, day, null);
return new AlertDialog.Builder(getActivity()).setView(v)
.setTitle(R.string.date_picker_title)
.setPositiveButton(android.R.string.ok,
new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
int year = mDatePicker.getYear();
int month = mDatePicker.getMonth();
int day = mDatePicker.getDayOfMonth();
Date date = new GregorianCalendar(year, month, day).getTime();
sendResult(Activity.RESULT_OK, date);
}
})
.create();
}
private void sendResult(int resultCode, Date date) {
if (getTargetFragment() == null) {
return;
}
Intent intent = new Intent();
intent.putExtra(EXTRA_DATE, date);
getTargetFragment().onActivityResult(getTargetRequestCode(), resultCode,intent);
}
}Login
package wengxiaoyang.personalfinanceassistant;
import java.util.UUID;
public class Login {
private UUID mId;
private String mAccount;
private String mPassword;
public Login() {
this(UUID.randomUUID());
}
public Login(UUID id) {
mId = id;
}
public UUID getId() {
return mId;
}
public String getAccount() {
return mAccount;
}
public void setAccount(String account) {
mAccount = account;
}
public String getPassword() {
return mPassword;
}
public void setPassword(String password) {
mPassword = password;
}
}LoginActivity
package wengxiaoyang.personalfinanceassistant;
import android.content.Context;
import android.content.Intent;
import android.support.v4.app.Fragment;
public class LoginActivity extends SingleFragmentActivity {
@Override
protected Fragment createFragment() {
return new LoginFragment();
}
public static Intent newIntent(Context packageContext) {
Intent intent = new Intent(packageContext, LoginActivity.class);
return intent;
}
}LoginFragment
package wengxiaoyang.personalfinanceassistant;
import android.support.v4.app.Fragment;
import android.animation.Animator;
import android.animation.AnimatorListenerAdapter;
import android.annotation.TargetApi;
import android.content.Intent;
import android.os.Build;
import android.os.Bundle;
import android.view.KeyEvent;
import android.view.LayoutInflater;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.ViewGroup;
import android.view.inputmethod.EditorInfo;
import android.widget.AutoCompleteTextView;
import android.widget.Button;
import android.widget.EditText;
import android.widget.TextView;
public class LoginFragment extends Fragment {
// UI
private AutoCompleteTextView mEmailView;
private EditText mPasswordView;
private Button mRegisterButton;
private View mProgressView;
private View mLoginFormView;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
}
//onCreateView是创建该fragment的视图，并返回给调用者。
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
View view = inflater.inflate(R.layout.fragment_login, container, false);
// 建立视图
mEmailView = (AutoCompleteTextView) view.findViewById(R.id.email);
mPasswordView = (EditText) view.findViewById(R.id.password);
mPasswordView.setOnEditorActionListener(new TextView.OnEditorActionListener() {
@Override
public boolean onEditorAction(TextView textView, int id, KeyEvent keyEvent) {//输入密码之后监听哪个按钮的触发
if (id == EditorInfo.IME_ACTION_DONE || id == EditorInfo.IME_NULL) {//对应“完成”按钮和回车按钮，说明选择的是登录而不是注册
attemptLogin();
return true;
}
return false;
}
});
Button mEmailSignInButton = (Button) view.findViewById(R.id.email_sign_in_button);//登录按钮
mEmailSignInButton.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View view) {
attemptLogin();
}
});//设置监听，调用attemplogin方法判断邮箱和密码是否正确
mRegisterButton = view.findViewById(R.id.register_button);//注册按钮
mRegisterButton.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {//跳转到注册界面
Intent intent = new Intent(getActivity(), RegisterActivity.class);
startActivity(intent);
}
});
mLoginFormView = view.findViewById(R.id.login_form);
mProgressView = view.findViewById(R.id.login_progress);
return view;
}
private void attemptLogin() {
//判断邮箱和密码是否能和数据库里面的数据匹配
// 重置，不能记住密码
mEmailView.setError(null);
mPasswordView.setError(null);
// 获取登录的信息
String email = mEmailView.getText().toString();
String password = mPasswordView.getText().toString();
boolean cancel = false;
View focusView = null;
// 校验账号和密码
if (login(email, password)) {//调用下面的login方法进行邮箱密码比对，比对在loginlab中进行
mEmailView.setError(getString(R.string.error_error_acpw));
focusView = mEmailView;
cancel = true;
//比对不成功则提示报错
}
if (cancel) {
// 聚焦到错误发生地
focusView.requestFocus();
} else {
// 成功登录
showProgress(true);
// 跳转到ManageListActivity
Intent intent = ManageListActivity.newIntent(getActivity());
startActivity(intent);
}
}
@TargetApi(Build.VERSION_CODES.HONEYCOMB_MR2)
// 动画
private void showProgress(final boolean show) {
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB_MR2) {
int shortAnimTime = getResources().getInteger(android.R.integer.config_shortAnimTime);
mLoginFormView.setVisibility(show ? View.GONE : View.VISIBLE);
mLoginFormView.animate().setDuration(shortAnimTime).alpha(
show ? 0 : 1).setListener(new AnimatorListenerAdapter() {
@Override
public void onAnimationEnd(Animator animation) {
mLoginFormView.setVisibility(show ? View.GONE : View.VISIBLE);
}
});
mProgressView.setVisibility(show ? View.VISIBLE : View.GONE);
mProgressView.animate().setDuration(shortAnimTime).alpha(
show ? 1 : 0).setListener(new AnimatorListenerAdapter() {
@Override
public void onAnimationEnd(Animator animation) {
mProgressView.setVisibility(show ? View.VISIBLE : View.GONE);
}
});
} else {
// 若API不支持,则简单显示
mProgressView.setVisibility(show ? View.VISIBLE : View.GONE);
mLoginFormView.setVisibility(show ? View.GONE : View.VISIBLE);
}
}
public boolean login(String account, String password) {//验证此账号密码是否正确
Login login = LoginLab.get(getActivity()).getAccountAndPassword(account, password);
if (login != null) {
return false;
} else
return true;
}
}LoginLab
package wengxiaoyang.personalfinanceassistant;
import android.content.ContentValues;
import android.content.Context;
import android.database.Cursor;
import android.database.sqlite.SQLiteDatabase;
import java.util.ArrayList;
import java.util.List;
import java.util.UUID;
import database.ManageDbSchema.ManageTable2;
import database.ManageCursorWrapper;
import database.ManageBaseHelper;
public class LoginLab {
private static LoginLab sLoginLab;
private Context mContext;
private SQLiteDatabase mDatabase;
// 构造方法
private LoginLab(Context context) {
mContext = context.getApplicationContext();
mDatabase = new ManageBaseHelper(mContext).getWritableDatabase();//获得可读写操作对象
}
// 注册界面添加账号密码，创建contentvalues对象，调用mdatabase的insert方法将数据插入到数据库里面
public void addLogin(Login l) {
ContentValues values = getContentValues(l);
mDatabase.insert(ManageTable2.NAME2, null, values);
}
// 在数据库中找到Login表，也就是table2
private ManageCursorWrapper queryLogin(String whereClause, String[] whereArgs) {
Cursor cursor = mDatabase.query(
ManageTable2.NAME2,
null,// null selects all columns
whereClause,
whereArgs,
null,
null,
null
);
return new ManageCursorWrapper(cursor);
}
// 根据返回的参数cursor，在找到的login表里面再根据账号密码查找对应的用户
public Login getAccountAndPassword(String account, String password) {
ManageCursorWrapper cursor = queryLogin(
ManageTable2.Cols2.ACCOUNT + " = ? and " + ManageTable2.Cols2.PASSWORD+ " = ?",
new String[] { account, password }
);
try {
if (cursor.getCount() == 0) {//此用户不存在
return null;
}
cursor.moveToFirst();//从表的第一个用户开始查找
return cursor.getLogin();
} finally {
cursor.close();
}
}
// 获得Login数据，后一个参数的值赋给前面的一个参数，返回的login的值进行对比
private static ContentValues getContentValues(Login login) {
ContentValues values = new ContentValues();
values.put(ManageTable2.Cols2.UUID, login.getId().toString());
values.put(ManageTable2.Cols2.ACCOUNT, login.getAccount());
values.put(ManageTable2.Cols2.PASSWORD, login.getPassword());
return values;
}
// 根据上下文获取LoginLab
public static LoginLab get(Context context) {
if (sLoginLab == null) {
sLoginLab = new LoginLab(context);
}
return sLoginLab;
}
}Manage
package wengxiaoyang.personalfinanceassistant;
import java.util.Date;
import java.util.UUID;
public class Manage {
private UUID mId;
private String mTitle;
private String mMoney;
private Date mDate;
private int mPayMethod;
private String mRemark;
public Manage() {
this(UUID.randomUUID());
}
public Manage(UUID id) {
mId = id;
mDate = new Date();
}
public UUID getId() {
return mId;
}
public String getTitle() {
return mTitle;
}
public void setTitle(String title) {
mTitle = title;
}
public String getMoney() {
return mMoney;
}
public void setMoney(String money) {
mMoney = money;
}
public Date getDate() {
return mDate;
}
public void setDate(Date date) {
mDate = date;
}
public int getPayMethod() {
return mPayMethod;
}
public void setPayMethod(int payMethod) {
mPayMethod = payMethod;
}
public String getRemark() {
return mRemark;
}
public void setRemark(String remark) {
mRemark = remark;
}
public String getPhotoFilename() {
return "IMG_" + getId().toString() + ".jpg";
}
}ManageFragment
package wengxiaoyang.personalfinanceassistant;
import android.app.Activity;
import android.content.Intent;
import android.content.pm.PackageManager;
import android.content.pm.ResolveInfo;
import android.database.Cursor;
import android.graphics.Bitmap;
import android.net.Uri;
import android.os.Bundle;
import android.provider.MediaStore;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentManager;
import android.support.v4.app.ShareCompat;
import android.support.v4.content.FileProvider;
import android.text.Editable;
import android.text.TextWatcher;
import android.text.format.DateFormat;
import android.view.LayoutInflater;
import android.view.Menu;
import android.view.MenuInflater;
import android.view.MenuItem;
import android.view.View;
import android.view.ViewGroup;
import android.view.ViewTreeObserver;
import android.widget.Button;
import android.widget.CheckBox;
import android.widget.CompoundButton;
import android.widget.EditText;
import android.widget.ImageButton;
import android.widget.ImageView;
import android.widget.RadioButton;
import android.widget.RadioGroup;
import java.io.File;
import java.util.Date;
import java.util.List;
import java.util.Objects;
import java.util.UUID;
//manager的总布局
public class ManageFragment extends Fragment {
private static final String ARG_MANAGE_ID = "manage_id";
private static final String DIALOG_DATE = "dialogDate";
private static final String DIALOG_TIME = "dialogTime";
private static final String DIALOG_PHOTO = "dialogPhoto";
private static final int REQUEST_DATE = 0;
private static final int REQUEST_TIME = 0;
private static final int REQUEST_PHOTO = 3;
private Manage mManage;
private File mPhotoFile;
private EditText mTitleField;
private EditText mMoneyField;
private Button mDateButton;
private RadioGroup mRadioGroup;
private RadioButton mRadioButton_cash;
private RadioButton mRadioButton_card;
private EditText mRemarkField;
private Button mTimeButton;
private Button mReportButton;
private ImageButton mPhotoButton;
private ImageView mPhotoView;
//根据ID创建实例
public static ManageFragment newInstance(UUID manageId) {
Bundle args = new Bundle();
args.putSerializable(ARG_MANAGE_ID, manageId);
ManageFragment fragment = new ManageFragment();
fragment.setArguments(args);
return fragment;
}
// 保存部分数据
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
UUID manageId = (UUID) getArguments().getSerializable(ARG_MANAGE_ID);
mManage = ManageLab.get(getActivity()).getManage(manageId);
setHasOptionsMenu(true);
mPhotoFile = ManageLab.get(getActivity()).getPhotoFile(mManage);
}
@Override
public void onPause() {
super.onPause();
// 更新数据库数据
ManageLab.get(getActivity()).updateManage(mManage);
}
// UI
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
View v = inflater.inflate(R.layout.fragment_manage, container, false);
// 标题
mTitleField = v.findViewById(R.id.manage_title);
mTitleField.setText(mManage.getTitle());
mTitleField.addTextChangedListener(new TextWatcher() {
@Override
public void beforeTextChanged(CharSequence s, int start, int count, int after) {
}
@Override
public void onTextChanged(CharSequence s, int start, int before, int count) {
mManage.setTitle(s.toString());
}
@Override
public void afterTextChanged(Editable s) {
}
});
// 金额
mMoneyField = v.findViewById(R.id.manage_money);
mMoneyField.setText(mManage.getMoney());
mMoneyField.addTextChangedListener(new TextWatcher() {
@Override
public void beforeTextChanged(CharSequence s, int start, int count, int after) {
}
@Override
public void onTextChanged(CharSequence s, int start, int before, int count) {
mManage.setMoney(s.toString());
}
@Override
public void afterTextChanged(Editable s) {
}
});
// 日期
mDateButton = v.findViewById(R.id.manage_date);
Date date = mManage.getDate();
updateDate();
mDateButton.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
FragmentManager manager = getFragmentManager();
DatePickerFragment dialog = DatePickerFragment.newInstance(mManage.getDate());
dialog.setTargetFragment(ManageFragment.this, REQUEST_DATE);
dialog.show(manager, DIALOG_DATE);
}
});
// 时间
mTimeButton = v.findViewById(R.id.manage_time);
String dateString2 = (String) DateFormat.format("h:mm a", date);
updateTime(dateString2);
mTimeButton.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
FragmentManager manager = getFragmentManager();
TimePickerFragment dialog = TimePickerFragment.newInstance(mManage.getDate());
dialog.setTargetFragment(ManageFragment.this, REQUEST_TIME);
dialog.show(Objects.requireNonNull(manager), DIALOG_TIME); //第二个参数是tag
}
});
// 支付方式
mRadioGroup = v.findViewById(R.id.manage_pay_method);
mRadioGroup.setOnCheckedChangeListener(new RadioGroup.OnCheckedChangeListener(){
@Override
public void onCheckedChanged(RadioGroup group, int checkedId) {
Manage manage = new Manage();
switch (checkedId) {
case R.id.manage_cash:
manage.setPayMethod(1);
break;
case R.id.manage_card:
manage.setPayMethod(2);
break;
default:
break;
}
}
});
System.out.println(mManage.getPayMethod());
mRadioButton_cash = v.findViewById(R.id.manage_cash);
mRadioButton_card = v.findViewById(R.id.manage_card);
int PayMethod = mManage.getPayMethod();
if (PayMethod == 1) {
mRadioButton_cash.setChecked(true);
} else if (PayMethod == 2) {
mRadioButton_card.setChecked(true);
}
// 备注
mRemarkField = v.findViewById(R.id.manage_remark);
mRemarkField.setText(mManage.getRemark());
mRemarkField.addTextChangedListener(new TextWatcher() {
@Override
public void beforeTextChanged(CharSequence s, int start, int count, int after) {
}
@Override
public void onTextChanged(CharSequence s, int start, int before, int count) {
mManage.setRemark(s.toString());
}
@Override
public void afterTextChanged(Editable s) {
}
});
// 发送报告
mReportButton = v.findViewById(R.id.manage_report);
mReportButton.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
ShareCompat.IntentBuilder i = ShareCompat.IntentBuilder.from(getActivity());
i.setType("text/plain");
i.setText(getManageReport());
i.setSubject(getString(R.string.manage_report_subject));
i.createChooserIntent();
i.startChooser();
}
});
PackageManager packageManager = getActivity().getPackageManager();
// 拍照
mPhotoButton = v.findViewById(R.id.manage_camera);
final Intent captureImage = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
// 如果不能拍照就禁用按钮
boolean canTakePhoto = mPhotoFile != null &&
captureImage.resolveActivity(packageManager) != null;
mPhotoButton.setEnabled(canTakePhoto);
// 跳转到相机
mPhotoButton.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
Uri uri = FileProvider.getUriForFile(getActivity(),
"wengxiaoyang.personalfinanceassistant.fileprovider", mPhotoFile);
captureImage.putExtra(MediaStore.EXTRA_OUTPUT, uri);
List<ResolveInfo> cameraActivities = getActivity().getPackageManager()
.queryIntentActivities(captureImage, PackageManager.MATCH_DEFAULT_ONLY);
for (ResolveInfo activity : cameraActivities) {
getActivity().grantUriPermission(activity.activityInfo.packageName, uri, Intent.FLAG_GRANT_WRITE_URI_PERMISSION);
}
startActivityForResult(captureImage, REQUEST_PHOTO);
}
});
// 显示照片
mPhotoView = v.findViewById(R.id.manage_photo);
mPhotoView.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
if (mPhotoFile == null || !mPhotoFile.exists()) {
mPhotoView.setImageDrawable(null);
} else {
FragmentManager manager = getFragmentManager();
PhotoDetailFragment dialog = PhotoDetailFragment.newInstance(mPhotoFile);
dialog.setTargetFragment(ManageFragment.this, REQUEST_PHOTO);
dialog.show(manager, DIALOG_PHOTO);
}
}
});
ViewTreeObserver mPhotoObserver = mPhotoView.getViewTreeObserver();
mPhotoObserver.addOnGlobalLayoutListener(new ViewTreeObserver.OnGlobalLayoutListener() {
@Override
public void onGlobalLayout() {
updatePhotoView(mPhotoView.getWidth(), mPhotoView.getHeight());
}
});
return v;
}
// 根据需求更新视图
@Override
public void onActivityResult(int requestCode, int resultCode, Intent data) {
if (resultCode != Activity.RESULT_OK) {
return;
}
if (requestCode == REQUEST_DATE) {
Date date = (Date) data.getSerializableExtra(DatePickerFragment.EXTRA_DATE);
mManage.setDate(date);
updateDate();
}
if (requestCode == REQUEST_TIME) {
Date date = mManage.getDate();
String dateString2 = (String) DateFormat.format("h:mm a", date);
updateTime(dateString2);
}
else if (requestCode == REQUEST_PHOTO) {
Uri uri = FileProvider.getUriForFile(getActivity(),
"wengxiaoyang.personalfinanceassistant.fileprovider", mPhotoFile);
getActivity().revokeUriPermission(uri, Intent.FLAG_GRANT_WRITE_URI_PERMISSION);
updatePhotoView(mPhotoView.getWidth(), mPhotoView.getHeight());
}
}
// 创建菜单
@Override
public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) {
super.onCreateOptionsMenu(menu, inflater);
inflater.inflate(R.menu.fragment_manage, menu);
}
// 根据选择响应
@Override
public boolean onOptionsItemSelected(MenuItem item) {
switch (item.getItemId()) {
case R.id.delete_manage:
ManageLab.get(getActivity()).removeManage(mManage);
getActivity().finish();
return true;
case android.R.id.home: //向上导航时保证子标题可见状态
getActivity().finish();
return true;
default:
return super.onOptionsItemSelected(item);
}
}
private void updateDate() {
mDateButton.setText(mManage.getDate().toString());
}
private void updateTime(String s) {
mTimeButton.setText(s);
}
// 发送报告
private String getManageReport() {
String payString = null;
if (mManage.getPayMethod() == 1) {
payString = getString(R.string.manage_report_cash);
} else if (mManage.getPayMethod() == 2){
payString = getString(R.string.manage_report_card);
}
String dateString = (String) DateFormat.format("EEE, MMM dd, yyyy", mManage.getDate());
String report = getString(R.string.manage_report,
mManage.getTitle(), dateString, payString, mManage.getRemark());
return report;
}
// 更新照片视图
private void updatePhotoView(int width, int height) {
if (mPhotoFile == null || !mPhotoFile.exists()) {
mPhotoView.setImageDrawable(null);
} else {
Bitmap bitmap = PictureUtils.getScaledBitmap(mPhotoFile.getPath(), width, height);
mPhotoView.setImageBitmap(bitmap);
}
}
}ManageLab
package wengxiaoyang.personalfinanceassistant;
import android.content.ContentValues;
import android.content.Context;
import android.database.Cursor;
import android.database.sqlite.SQLiteDatabase;
import java.io.File;
import java.util.ArrayList;
import java.util.Date;
import java.util.List;
import java.util.UUID;
import database.ManageDbSchema.ManageTable;
import database.ManageCursorWrapper;
import database.ManageBaseHelper;
//对每一条记录的操作：增加、删除、修改、查找
public class ManageLab {
private static ManageLab sManageLab;
private Context mContext;
private SQLiteDatabase mDatabase;
private ManageLab(Context context) {
mContext = context.getApplicationContext();
mDatabase = new ManageBaseHelper(mContext).getWritableDatabase();
}
// 添加记录
public void addManage(Manage m) {
ContentValues values = getContentValues(m);
mDatabase.insert(ManageTable.NAME, null, values);
}
// 删除记录
public void removeManage(Manage c) {
String uuidString = c.getId().toString();
mDatabase.delete(ManageTable.NAME, ManageTable.Cols.UUID + " = ?", new String[]{uuidString});
}
// 得到照片
public File getPhotoFile(Manage manage) {
File filesDir = mContext.getFilesDir();
return new File(filesDir, manage.getPhotoFilename());
}
// 更新记录
public void updateManage(Manage manage) {
String uuidString = manage.getId().toString();
ContentValues values = getContentValues(manage);
mDatabase.update(ManageTable.NAME, values, ManageTable.Cols.UUID + " = ?", new String[]{uuidString});
}
// 查找记录
private ManageCursorWrapper queryManages(String whereClause, String[] whereArgs) {
Cursor cursor = mDatabase.query(
ManageTable.NAME,
null,// null selects all columns
whereClause,
whereArgs,
null,
null,
null
);
return new ManageCursorWrapper(cursor);
}
// 得到Manages集合
public List<Manage> getManages() {
List<Manage> manages = new ArrayList<>();
ManageCursorWrapper cursor = queryManages(null,null);
try {
cursor.moveToFirst();
while (!cursor.isAfterLast()) {
manages.add(cursor.getManage());
cursor.moveToNext();
}
}finally {
cursor.close();
}
return manages;
}
// 根据ID获取Manage
public Manage getManage(UUID id) {
ManageCursorWrapper cursor = queryManages(
ManageTable.Cols.UUID + " = ?",
new String[] { id.toString() }
);
try {
if (cursor.getCount() == 0) {
return null;
}
cursor.moveToFirst();
return cursor.getManage();
} finally {
cursor.close();
}
}
// 获得数据库数据
private static ContentValues getContentValues(Manage manage) {
ContentValues values = new ContentValues();
values.put(ManageTable.Cols.UUID, manage.getId().toString());
values.put(ManageTable.Cols.TITLE, manage.getTitle());
values.put(ManageTable.Cols.MONEY, manage.getMoney());
values.put(ManageTable.Cols.DATE, manage.getDate().getTime());
values.put(ManageTable.Cols.PAYMETHOD, manage.getPayMethod());
values.put(ManageTable.Cols.REMARK, manage.getRemark());
return values;
}
public static ManageLab get(Context context) {
if (sManageLab == null) {
sManageLab = new ManageLab(context);
}
return sManageLab;
}
}ManageListActivity
package wengxiaoyang.personalfinanceassistant;
import android.content.Context;
import android.content.Intent;
import android.support.v4.app.Fragment;
public class ManageListActivity extends SingleFragmentActivity {
@Override
protected Fragment createFragment() {
return new ManageListFragment();
}
public static Intent newIntent(Context packageContext) {
Intent intent = new Intent(packageContext, ManageListActivity.class);
return intent;
}
}ManageFragment
package wengxiaoyang.personalfinanceassistant;
import android.content.Intent;
import android.os.Bundle;
import android.support.annotation.NonNull;
import android.support.v4.app.Fragment;
import android.support.v7.app.AppCompatActivity;
import android.support.v7.widget.LinearLayoutManager;
import android.support.v7.widget.RecyclerView;
import android.view.LayoutInflater;
import android.view.Menu;
import android.view.MenuInflater;
import android.view.MenuItem;
import android.view.View;
import android.view.ViewGroup;
import android.widget.Button;
import android.widget.ImageView;
import android.widget.TextView;
import android.widget.Toast;
import java.text.DateFormat;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.List;
//显示消费记录
public class ManageListFragment extends Fragment {
private RecyclerView mManageRecyclerView;
private ManageAdapter mAdapter;
private static int mManageIndex;
private boolean mSubtitleVisible;
private TextView mNullManageListTextView;
private Button mAddManageButton;
private static final String SAVED_SUBTITLE_VISIBLE = "subtitle";
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setHasOptionsMenu(true);
}
// UI
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
View view = inflater.inflate(R.layout.fragment_manage_list, container, false);
mManageRecyclerView = view.findViewById(R.id.manage_recycler_view);
mManageRecyclerView.setLayoutManager(new LinearLayoutManager(getActivity()));
mNullManageListTextView = view.findViewById(R.id.null_manage_list);
mAddManageButton = view.findViewById(R.id.add_manage);
mAddManageButton.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
Manage manage = new Manage();
ManageLab.get(getActivity()).addManage(manage);//下面的两个按钮
Intent intent = ManagePagerActivity.newIntent(getActivity(), manage.getId());
startActivity(intent);
}
});
// 保持记录条数可见
if (savedInstanceState != null) {
mSubtitleVisible = savedInstanceState.getBoolean(SAVED_SUBTITLE_VISIBLE);
}
updateUI();
return view;
}
@Override
public void onResume() {
super.onResume();
updateUI();
}
@Override
public void onSaveInstanceState(Bundle outState) {
super.onSaveInstanceState(outState);
outState.putBoolean(SAVED_SUBTITLE_VISIBLE, mSubtitleVisible);
}
// 创建菜单
@Override
public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) {
super.onCreateOptionsMenu(menu, inflater);
inflater.inflate(R.menu.fragment_manage_list, menu);
MenuItem subtitleItem = menu.findItem(R.id.show_subtitle);
if (mSubtitleVisible) {
subtitleItem.setTitle(R.string.hide_subtitle);
} else {
subtitleItem.setTitle(R.string.show_subtitle);
}
}
// 响应菜单点击
@Override
public boolean onOptionsItemSelected(MenuItem item) {
switch (item.getItemId()) {
case R.id.new_manage: // 创建新记录
Manage manage = new Manage();
ManageLab.get(getActivity()).addManage(manage);
Intent intent = ManagePagerActivity.newIntent(getActivity(), manage.getId());
startActivity(intent);
return true;
case R.id.search_manage: //搜索
intent = SearchActivity.newIntent(getActivity());
startActivity(intent);
return true;
case R.id.statistic_manage: //统计
intent = new Intent(getActivity(), StatisticActivity.class);
startActivity(intent);
return true;
case R.id.show_subtitle: //显示记录条数
mSubtitleVisible = !mSubtitleVisible;
getActivity().invalidateOptionsMenu();
updateSubtitle();
return true;
default:
return super.onOptionsItemSelected(item);
}
}
// 更新记录条数
private void updateSubtitle() {
ManageLab manageLab = ManageLab.get(getActivity());
int manageCount = manageLab.getManages().size();
String subtitle = getString(R.string.subtitle_format, manageCount);
if (!mSubtitleVisible) {
subtitle = null;
}
AppCompatActivity activity = (AppCompatActivity) getActivity();
activity.getSupportActionBar().setSubtitle(subtitle);
}
// 更新UI界面
private void updateUI() {
ManageLab manageLab = ManageLab.get(getActivity());
List<Manage> manages = manageLab.getManages();
if (mAdapter == null) {
mAdapter = new ManageAdapter(manages);
mManageRecyclerView.setAdapter(mAdapter);
} else {
//重绘当前可见区域
//mAdapter.notifyDataSetChanged();
//部分重绘
mAdapter.setManages(manages);
mAdapter.notifyItemChanged(mManageIndex);
}
if (manages.size() != 0) {
mNullManageListTextView.setVisibility(View.INVISIBLE);
mAddManageButton.setVisibility(View.INVISIBLE);
} else {
mNullManageListTextView.setVisibility(View.VISIBLE);
mAddManageButton.setVisibility(View.VISIBLE);
}
updateSubtitle();
}
private class ManageHolder extends RecyclerView.ViewHolder implements View.OnClickListener {
private TextView mTitleTextView;
private TextView mDateTextView;
private Manage mManage;
public ManageHolder(LayoutInflater inflater, ViewGroup parent) {
super(inflater.inflate(R.layout.list_item_manage, parent, false));
itemView.setOnClickListener(this);
mTitleTextView = itemView.findViewById(R.id.manage_title);
mDateTextView = itemView.findViewById(R.id.manage_date);
}
public void bind(Manage manage) {
mManage = manage;
mTitleTextView.setText(mManage.getTitle());
Date date = manage.getDate();
mDateTextView.setText(date.toString());
}
@Override
public void onClick(View view) {
Intent intent = ManagePagerActivity.newIntent(getActivity(), mManage.getId());
mManageIndex = getAdapterPosition(); //返回数据在adapter中的位置
startActivity(intent);
}
}
private class ManageAdapter extends RecyclerView.Adapter {
private List<Manage> mManages;
public ManageAdapter(List<Manage> manages) {
mManages = manages;
}
//视图类别功能
@NonNull
@Override
public RecyclerView.ViewHolder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) {
//先建立LayoutInflater
LayoutInflater layoutInflater = LayoutInflater.from(getActivity());
return new ManageHolder(layoutInflater, parent);
}
@Override
public void onBindViewHolder(RecyclerView.ViewHolder holder, int position) {
Manage manage = mManages.get(position);
((ManageHolder)holder).bind(manage);
}
@Override
public int getItemCount() {
return mManages.size();
}
public void setManages(List<Manage> manages) {
mManages = manages;
}
}
}ManagePagerActivity
package wengxiaoyang.personalfinanceassistant;
import android.content.Context;
import android.content.Intent;
import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentManager;
import android.support.v4.app.FragmentStatePagerAdapter;
import android.support.v4.view.ViewPager;
import android.support.v7.app.AppCompatActivity;
import android.view.View;
import android.widget.Button;
import java.util.List;
import java.util.UUID;
//主页的最下面两个按钮，可依次跳转支出的详情界面，tolast and tofirst
public class ManagePagerActivity extends AppCompatActivity {
private static final String EXTRA_MANAGE_ID = "wengxiaoyang.personalfinanceassistant.manage_id";
private static final String EXTRA_MANAGE_TITLE = "wengxiaoyang.personalfinanceassistant.manage_title";
private ViewPager mViewPager;
private List<Manage> mManages;
private Button btn_first;
private Button btn_last;
public static Intent newIntent(Context packageContext, UUID manageId) {
Intent intent = new Intent(packageContext, ManagePagerActivity.class);
intent.putExtra(EXTRA_MANAGE_ID, manageId);
return intent;
}
public static Intent newIntent(Context packageContext, String title) {
Intent intent = new Intent(packageContext, ManagePagerActivity.class);
intent.putExtra(EXTRA_MANAGE_TITLE, title);
return intent;
}
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_manage_pager);
UUID manageId = (UUID) getIntent().getSerializableExtra(EXTRA_MANAGE_ID);
mViewPager = findViewById(R.id.manage_view_pager);
// 根据所处位置隐藏按钮
mViewPager.addOnPageChangeListener(new ViewPager.OnPageChangeListener() {
@Override
public void onPageScrolled(int position, float positionOffset, int positionOffsetPixels) {
if (position == 0) {
btn_first.setVisibility(View.INVISIBLE);
btn_last.setVisibility(View.VISIBLE);
} else if (position == mManages.size() - 1) {
btn_first.setVisibility(View.VISIBLE);
btn_last.setVisibility(View.INVISIBLE);
} else {
btn_first.setVisibility(View.VISIBLE);
btn_last.setVisibility(View.VISIBLE);
}
}
@Override
public void onPageSelected(int i) {
}
@Override
public void onPageScrollStateChanged(int i) {
}
});
btn_first = findViewById(R.id.btn_to_first);
btn_first.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
mViewPager.setCurrentItem(0);
}
});
btn_last = findViewById(R.id.btn_to_last);
btn_last.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
mViewPager.setCurrentItem(mManages.size() - 1);
}
});
mManages = ManageLab.get(this).getManages();
FragmentManager fragmentManager = getSupportFragmentManager();
mViewPager.setAdapter(new FragmentStatePagerAdapter(fragmentManager) {
@Override
public Fragment getItem(int position) {
Manage manage = mManages.get(position);
return ManageFragment.newInstance(manage.getId());
}
@Override
public int getCount() {
return mManages.size();
}
});
// 给每条记录编号
for (int i = 0; i < mManages.size(); i++) {
if (mManages.get(i).getId().equals(manageId)) {
mViewPager.setCurrentItem(i);
break;
}
}
}
}PhotoDetailFragment
package wengxiaoyang.personalfinanceassistant;
import android.app.AlertDialog;
import android.app.Dialog;
import android.graphics.Bitmap;
import android.os.Bundle;
import android.support.v4.app.DialogFragment;
import android.view.LayoutInflater;
import android.view.View;
import android.widget.ImageView;
import java.io.File;
public class PhotoDetailFragment extends DialogFragment {
private static final String ARG_FILE = "file";
private ImageView mPhotoView;
// 照片细节
public static PhotoDetailFragment newInstance(File file) {
Bundle args = new Bundle();
args.putSerializable(ARG_FILE, file);
PhotoDetailFragment fragment =new PhotoDetailFragment();
fragment.setArguments(args);
return fragment;
}
// 创建对话框
@Override
public Dialog onCreateDialog(Bundle savedInstanceState) {
File file = (File) getArguments().getSerializable(ARG_FILE);
View v = LayoutInflater.from(getActivity()).inflate(R.layout.dialog_photo, null);
mPhotoView = v.findViewById(R.id.manage_photo_detail);
Bitmap bitmap = PictureUtils.getScaledBitmap(file.getPath(), getActivity());
mPhotoView.setImageBitmap(bitmap);
return new AlertDialog.Builder(getActivity()).setView(v)
.setPositiveButton(android.R.string.ok, null).create();
}
}PictureUtils
package wengxiaoyang.personalfinanceassistant;
import android.app.Activity;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.graphics.Point;
public class PictureUtils {
public static Bitmap getScaledBitmap(String path, int destWidth, int destHeight) {
//读入磁盘上图像的尺寸
BitmapFactory.Options options = new BitmapFactory.Options();
options.inJustDecodeBounds = true;
BitmapFactory.decodeFile(path, options);
float srcWidth = options.outWidth;
float srcHeight = options.outHeight;
//弄清要减少多少
int inSampleSize = 1;
if (srcHeight > destHeight || srcWidth > destWidth) {
float heightScale = srcHeight / destHeight;
float widthScale = srcWidth / destWidth;
inSampleSize = Math.round(heightScale > widthScale ? heightScale : widthScale);
}
options = new BitmapFactory.Options();
options.inSampleSize = inSampleSize;
//读入和创建常量bitmap
return BitmapFactory.decodeFile(path, options);
}
public static Bitmap getScaledBitmap(String path, Activity activity) {
Point size = new Point();
activity.getWindowManager().getDefaultDisplay().getSize(size);
return getScaledBitmap(path, size.x, size.y);
}
}RegisterActivity
package wengxiaoyang.personalfinanceassistant;
import android.support.v4.app.Fragment;
public class RegisterActivity extends SingleFragmentActivity {
@Override
protected Fragment createFragment() {
return new RegisterFragment();
}
}RegisterFragment
package wengxiaoyang.personalfinanceassistant;
//注册界面
import android.animation.Animator;
import android.animation.AnimatorListenerAdapter;
import android.annotation.TargetApi;
import android.content.Intent;
import android.os.Build;
import android.os.Bundle;
import android.text.TextUtils;
import android.view.KeyEvent;
import android.view.LayoutInflater;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.ViewGroup;
import android.view.inputmethod.EditorInfo;
import android.widget.AutoCompleteTextView;
import android.widget.Button;
import android.widget.EditText;
import android.widget.TextView;
import android.support.v4.app.Fragment;
public class RegisterFragment extends Fragment {
// UI
private AutoCompleteTextView mEmailView;
private EditText mPasswordView;
private View mProgressView;
private View mLoginFormView;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
// 布局
//onCreateView是创建该fragment的视图，并返回给调用者。
View view = inflater.inflate(R.layout.fragment_register, container, false);
mEmailView = (AutoCompleteTextView) view.findViewById(R.id.email);
mPasswordView = (EditText) view.findViewById(R.id.password);
mPasswordView.setOnEditorActionListener(new TextView.OnEditorActionListener() {
@Override
public boolean onEditorAction(TextView textView, int id, KeyEvent keyEvent) {
if (id == EditorInfo.IME_ACTION_DONE || id == EditorInfo.IME_NULL) {//输入密码之后监听触发了哪个按钮
attemptLogin();
return true;
}
return false;
}
});
Button mEmailSignInButton = (Button) view.findViewById(R.id.email_sign_in_button);//登录按钮
mEmailSignInButton.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View view) {
attemptLogin();
}
});
mLoginFormView = view.findViewById(R.id.register_form);
mProgressView = view.findViewById(R.id.register_progress);
return view;
}
private void attemptLogin() {
// 重置错误
mEmailView.setError(null);
mPasswordView.setError(null);
// 获取输入内容
String email = mEmailView.getText().toString();
String password = mPasswordView.getText().toString();
boolean cancel = false;
View focusView = null;
// 检查密码是否有效
if (!TextUtils.isEmpty(password) && !isPasswordValid(password)) {
mPasswordView.setError(getString(R.string.error_invalid_password));
focusView = mPasswordView;
cancel = true;
}
// 确认有效的邮箱地址
if (TextUtils.isEmpty(email)) {
mEmailView.setError(getString(R.string.error_field_required));
focusView = mEmailView;
cancel = true;
} else if (!isEmailValid(email)) {
mEmailView.setError(getString(R.string.error_invalid_email));
focusView = mEmailView;
cancel = true;
}
if (cancel) {
// 聚焦到错误发生地
focusView.requestFocus();
} else {
// 成功后
showProgress(true);
// 将数据添加进数据库
Login login = new Login();
login.setAccount(email);
login.setPassword(password);
LoginLab.get(getActivity()).addLogin(login);
Intent intent = LoginActivity.newIntent(getActivity());
startActivity(intent);
}
}
private boolean isEmailValid(String email) {//邮箱必须有@符号
//TODO: Replace this with your own logic
return email.contains("@");
}
private boolean isPasswordValid(String password) {//密码太短
//TODO: Replace this with your own logic
return password.length() > 4;
}
@TargetApi(Build.VERSION_CODES.HONEYCOMB_MR2)
private void showProgress(final boolean show) {
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB_MR2) {
int shortAnimTime = getResources().getInteger(android.R.integer.config_shortAnimTime);
mLoginFormView.setVisibility(show ? View.GONE : View.VISIBLE);
mLoginFormView.animate().setDuration(shortAnimTime).alpha(
show ? 0 : 1).setListener(new AnimatorListenerAdapter() {
@Override
public void onAnimationEnd(Animator animation) {
mLoginFormView.setVisibility(show ? View.GONE : View.VISIBLE);
}
});
mProgressView.setVisibility(show ? View.VISIBLE : View.GONE);
mProgressView.animate().setDuration(shortAnimTime).alpha(
show ? 1 : 0).setListener(new AnimatorListenerAdapter() {
@Override
public void onAnimationEnd(Animator animation) {
mProgressView.setVisibility(show ? View.VISIBLE : View.GONE);
}
});
} else {
// The ViewPropertyAnimator APIs are not available, so simply show
// and hide the relevant UI components.
mProgressView.setVisibility(show ? View.VISIBLE : View.GONE);
mLoginFormView.setVisibility(show ? View.GONE : View.VISIBLE);
}
}
}SearchActivity
package wengxiaoyang.personalfinanceassistant;
import android.content.Context;
import android.content.Intent;
import android.support.v4.app.Fragment;
public class SearchActivity extends SingleFragmentActivity {
@Override
protected Fragment createFragment() {
return new SearchFragment();
}
public static Intent newIntent(Context packageContext) {
Intent intent = new Intent(packageContext, SearchActivity.class);
return intent;
}
}SearchFragment
package wengxiaoyang.personalfinanceassistant;
import android.content.Intent;
import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.Button;
import android.widget.EditText;
import android.widget.TextView;
public class SearchFragment extends Fragment {
// UI
private TextView mTextView;
private EditText mSearchView;
private Button mSearchButton;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
}
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
// 布局
View view = inflater.inflate(R.layout.fragment_search, container, false);
mTextView = view.findViewById(R.id.textView_search);
mSearchView = (EditText) view.findViewById(R.id.edit_search);
mSearchButton = (Button) view.findViewById(R.id.button_search1);
// 跳转到搜索的activity
mSearchButton.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
String search = mSearchView.getText().toString();
Intent intent = ManagePagerActivity.newIntent(getActivity(), search);
startActivity(intent);
}
});
return view;
}
}SingleFragmentActivity
package wengxiaoyang.personalfinanceassistant;
import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentManager;
import android.support.v7.app.AppCompatActivity;
public abstract class SingleFragmentActivity extends AppCompatActivity {
protected abstract Fragment createFragment();
// 创建fragment
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_fragment);
FragmentManager fm = getSupportFragmentManager();
Fragment fragment = fm.findFragmentById(R.id.fragment_container);
if (fragment == null) {
fragment = createFragment();
fm.beginTransaction().add(R.id.fragment_container, fragment).commit();
}
}
}StatisticActivity
package wengxiaoyang.personalfinanceassistant;
import android.support.v4.app.Fragment;
public class StatisticActivity extends SingleFragmentActivity {
@Override
protected Fragment createFragment() {
return new StatisticFragment();
}
}StatisticFragment
package wengxiaoyang.personalfinanceassistant;
import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.Button;
import android.widget.EditText;
import android.widget.TextView;
import java.text.DecimalFormat;
import java.util.ArrayList;
import java.util.List;
//统计年月日的花销总额度
public class StatisticFragment extends Fragment {
private EditText mYear;
private EditText mMonth;
private EditText mDay;
private Button mButton;
private TextView mMoney;
private Double totalMoney = 0.0;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
}
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
// 布局
View view = inflater.inflate(R.layout.fragment_statistic, container, false);
// 年
mYear = view.findViewById(R.id.edit_year);
// 月
mMonth = view.findViewById(R.id.edit_month);
// 日
mDay = view.findViewById(R.id.edit_day);
mButton = view.findViewById(R.id.button_statistic);
mButton.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
// 获取输入框内容
String year = mYear.getText().toString();
String month = mMonth.getText().toString();
String day = mDay.getText().toString();
// 查找到所有记录
List<Manage> manages = ManageLab.get(getActivity()).getManages();
// 匹配有相同时间的记录,获得其金额并相加
for (int i = 0; i < manages.size(); i++){
if (year.equals(manages.get(i).getDate().toString().substring(24,28)) || month.equals(manages.get(i).getDate().toString().substring(4,7)) || day.equals(manages.get(i).getDate().toString().substring(8,10))) {
totalMoney += Double.parseDouble(manages.get(i).getMoney());
}
}
mMoney.setText(totalMoney.toString() + "元");
totalMoney = 0.0;
}
});
mMoney = view.findViewById(R.id.text_money);
return view;
}
}TimePickerFragment
package wengxiaoyang.personalfinanceassistant;
import android.app.Activity;
import android.app.AlertDialog;
import android.app.Dialog;
import android.content.DialogInterface;
import android.content.Intent;
import android.os.Bundle;
import android.support.annotation.NonNull;
import android.support.v4.app.DialogFragment;
import android.view.LayoutInflater;
import android.view.View;
import android.widget.TimePicker;
import java.util.Calendar;
import java.util.Date;
import java.util.GregorianCalendar;
//支出具体的时间（小时、分钟、秒）
public class TimePickerFragment extends DialogFragment {
//两个按钮公用一个EXTRA_DATE,所以不用新添加一个TimePicker专用的RXTRA_TIME
public static final String EXTRA_DATE = "wengxiaoyang.hziee.criminalintent.date";
private static final String ARG_DATE = "date";
private TimePicker mTimePicker;
@NonNull
@Override
public Dialog onCreateDialog(Bundle savedInstanceState) {
Date date = (Date) getArguments().getSerializable(ARG_DATE);
final Calendar calendar = Calendar.getInstance();
calendar.setTime(date);
//不加final的话,GregorianCalendar的构造方法会报错
final int year = calendar.get(Calendar.YEAR);
final int month = calendar.get(Calendar.MONTH);
final int day = calendar.get(Calendar.DAY_OF_MONTH);
//时分
int hour = calendar.get(Calendar.HOUR_OF_DAY);
int minute = calendar.get(Calendar.MINUTE);
View v = LayoutInflater.from(getActivity()).inflate(R.layout.dialog_time, null);
mTimePicker = v.findViewById(R.id.dialog_time_picker);
mTimePicker.setCurrentHour(hour);
mTimePicker.setCurrentMinute(minute);
return new AlertDialog.Builder(getActivity()).setView(v)
.setTitle(R.string.date_picker_title)
.setPositiveButton(android.R.string.ok,
new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
int hour = mTimePicker.getCurrentHour();
int minute = mTimePicker.getCurrentMinute();
Date date = new GregorianCalendar(year, month, day, hour, minute).getTime();
sendResult(Activity.RESULT_OK, date);
}
})
.create();
}
private void sendResult(int resultCode, Date date) {
if (getTargetFragment() == null) {
return;
}
Intent intent = new Intent();
intent.putExtra(EXTRA_DATE, date);
getTargetFragment().onActivityResult(getTargetRequestCode(), resultCode,intent);
}
public static TimePickerFragment newInstance(Date date) {
Bundle args = new Bundle();
args.putSerializable(ARG_DATE, date);
TimePickerFragment fragment = new TimePickerFragment();
fragment.setArguments(args);
return fragment;
}
}res部分的drawable
ic_launcher_background.xml(如果源文件里面存在此文件，就可以不要新建)
<?xml version="1.0" encoding="utf-8"?>
<vector xmlns:android="http://schemas.android.com/apk/res/android"
android:width="108dp"
android:height="108dp"
android:viewportWidth="108"
android:viewportHeight="108">
<path
android:fillColor="#008577"
android:pathData="M0,0h108v108h-108z" />
<path
android:fillColor="#00000000"
android:pathData="M9,0L9,108"
android:strokeWidth="0.8"
android:strokeColor="#33FFFFFF" />
<path
android:fillColor="#00000000"
android:pathData="M19,0L19,108"
android:strokeWidth="0.8"
android:strokeColor="#33FFFFFF" />
<path
android:fillColor="#00000000"
android:pathData="M29,0L29,108"
android:strokeWidth="0.8"
android:strokeColor="#33FFFFFF" />
<path
android:fillColor="#00000000"
android:pathData="M39,0L39,108"
android:strokeWidth="0.8"
android:strokeColor="#33FFFFFF" />
<path
android:fillColor="#00000000"
android:pathData="M49,0L49,108"
android:strokeWidth="0.8"
android:strokeColor="#33FFFFFF" />
<path
android:fillColor="#00000000"
android:pathData="M59,0L59,108"
android:strokeWidth="0.8"
android:strokeColor="#33FFFFFF" />
<path
android:fillColor="#00000000"
android:pathData="M69,0L69,108"
android:strokeWidth="0.8"
android:strokeColor="#33FFFFFF" />
<path
android:fillColor="#00000000"
android:pathData="M79,0L79,108"
android:strokeWidth="0.8"
android:strokeColor="#33FFFFFF" />
<path
android:fillColor="#00000000"
android:pathData="M89,0L89,108"
android:strokeWidth="0.8"
android:strokeColor="#33FFFFFF" />
<path
android:fillColor="#00000000"
android:pathData="M99,0L99,108"
android:strokeWidth="0.8"
android:strokeColor="#33FFFFFF" />
<path
android:fillColor="#00000000"
android:pathData="M0,9L108,9"
android:strokeWidth="0.8"
android:strokeColor="#33FFFFFF" />
<path
android:fillColor="#00000000"
android:pathData="M0,19L108,19"
android:strokeWidth="0.8"
android:strokeColor="#33FFFFFF" />
<path
android:fillColor="#00000000"
android:pathData="M0,29L108,29"
android:strokeWidth="0.8"
android:strokeColor="#33FFFFFF" />
<path
android:fillColor="#00000000"
android:pathData="M0,39L108,39"
android:strokeWidth="0.8"
android:strokeColor="#33FFFFFF" />
<path
android:fillColor="#00000000"
android:pathData="M0,49L108,49"
android:strokeWidth="0.8"
android:strokeColor="#33FFFFFF" />
<path
android:fillColor="#00000000"
android:pathData="M0,59L108,59"
android:strokeWidth="0.8"
android:strokeColor="#33FFFFFF" />
<path
android:fillColor="#00000000"
android:pathData="M0,69L108,69"
android:strokeWidth="0.8"
android:strokeColor="#33FFFFFF" />
<path
android:fillColor="#00000000"
android:pathData="M0,79L108,79"
android:strokeWidth="0.8"
android:strokeColor="#33FFFFFF" />
<path
android:fillColor="#00000000"
android:pathData="M0,89L108,89"
android:strokeWidth="0.8"
android:strokeColor="#33FFFFFF" />
<path
android:fillColor="#00000000"
android:pathData="M0,99L108,99"
android:strokeWidth="0.8"
android:strokeColor="#33FFFFFF" />
<path
android:fillColor="#00000000"
android:pathData="M19,29L89,29"
android:strokeWidth="0.8"
android:strokeColor="#33FFFFFF" />
<path
android:fillColor="#00000000"
android:pathData="M19,39L89,39"
android:strokeWidth="0.8"
android:strokeColor="#33FFFFFF" />
<path
android:fillColor="#00000000"
android:pathData="M19,49L89,49"
android:strokeWidth="0.8"
android:strokeColor="#33FFFFFF" />
<path
android:fillColor="#00000000"
android:pathData="M19,59L89,59"
android:strokeWidth="0.8"
android:strokeColor="#33FFFFFF" />
<path
android:fillColor="#00000000"
android:pathData="M19,69L89,69"
android:strokeWidth="0.8"
android:strokeColor="#33FFFFFF" />
<path
android:fillColor="#00000000"
android:pathData="M19,79L89,79"
android:strokeWidth="0.8"
android:strokeColor="#33FFFFFF" />
<path
android:fillColor="#00000000"
android:pathData="M29,19L29,89"
android:strokeWidth="0.8"
android:strokeColor="#33FFFFFF" />
<path
android:fillColor="#00000000"
android:pathData="M39,19L39,89"
android:strokeWidth="0.8"
android:strokeColor="#33FFFFFF" />
<path
android:fillColor="#00000000"
android:pathData="M49,19L49,89"
android:strokeWidth="0.8"
android:strokeColor="#33FFFFFF" />
<path
android:fillColor="#00000000"
android:pathData="M59,19L59,89"
android:strokeWidth="0.8"
android:strokeColor="#33FFFFFF" />
<path
android:fillColor="#00000000"
android:pathData="M69,19L69,89"
android:strokeWidth="0.8"
android:strokeColor="#33FFFFFF" />
<path
android:fillColor="#00000000"
android:pathData="M79,19L79,89"
android:strokeWidth="0.8"
android:strokeColor="#33FFFFFF" />
</vector>round_bg.xml
<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android">
<solid android:color="@color/colorPrimary"/>
<corners android:radius="100dp"/>round_border.xml
<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android">
<stroke android:color="@color/colorPrimary"
android:width="1dp"/>
<corners android:radius="100dp"/>接下来是插入的9张可可爱爱的蜡笔小新图片，在drawable文件夹里面添加任意图片，根据个人喜好，添加的方式参考其他博客。
在drawable-anydpi文件夹里面添加以下文件
ic_menu_add.xml
<vector xmlns:android="http://schemas.android.com/apk/res/android"
android:width="24dp"
android:height="24dp"
android:viewportWidth="24"
android:viewportHeight="24"
android:tint="#333333">
<path
android:fillColor="#FF000000"
android:pathData="M19,13h-6v6h-2v-6H5v-2h6V5h2v6h6v2z"/>
</vector>ic_menu_delete.xml
<vector xmlns:android="http://schemas.android.com/apk/res/android"
android:width="24dp"
android:height="24dp"
android:viewportWidth="24"
android:viewportHeight="24"
android:tint="#333333">
<path
android:fillColor="#FF000000"
android:pathData="M19,6.41L17.59,5 12,10.59 6.41,5 5,6.41 10.59,12 5,17.59 6.41,19 12,13.41 17.59,19 19,17.59 13.41,12z"/>
</vector>ic_menu_search.xml
<vector xmlns:android="http://schemas.android.com/apk/res/android"
android:width="24dp"
android:height="24dp"
android:viewportWidth="24"
android:viewportHeight="24"
android:tint="#333333">
<path
android:fillColor="#FF000000"
android:pathData="M15.5,14h-0.79l-0.28,-0.27C15.41,12.59 16,11.11 16,9.5 16,5.91 13.09,3 9.5,3S3,5.91 3,9.5 5.91,16 9.5,16c1.61,0 3.09,-0.59 4.23,-1.57l0.27,0.28v0.79l5,4.99L20.49,19l-4.99,-5zM9.5,14C7.01,14 5,11.99 5,9.5S7.01,5 9.5,5 14,7.01 14,9.5 11.99,14 9.5,14z"/>
</vector>ic_menu_statistic.xml
<vector xmlns:android="http://schemas.android.com/apk/res/android"
android:width="24dp"
android:height="24dp"
android:viewportWidth="24"
android:viewportHeight="24"
android:tint="#333333">
<path
android:fillColor="#FF000000"
android:pathData="M11.8,10.9c-2.27,-0.59 -3,-1.2 -3,-2.15 0,-1.09 1.01,-1.85 2.7,-1.85 1.78,0 2.44,0.85 2.5,2.1h2.21c-0.07,-1.72 -1.12,-3.3 -3.21,-3.81V3h-3v2.16c-1.94,0.42 -3.5,1.68 -3.5,3.61 0,2.31 1.91,3.46 4.7,4.13 2.5,0.6 3,1.48 3,2.41 0,0.69 -0.49,1.79 -2.7,1.79 -2.06,0 -2.87,-0.92 -2.98,-2.1h-2.2c0.12,2.19 1.76,3.42 3.68,3.83V21h3v-2.15c1.95,-0.37 3.5,-1.5 3.5,-3.55 0,-2.84 -2.43,-3.81 -4.7,-4.4z"/>
</vector>在drawable-v24文件夹添加以下文件
ic_launcher_foreground.xml
<vector xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:aapt="http://schemas.android.com/aapt"
android:width="108dp"
android:height="108dp"
android:viewportWidth="108"
android:viewportHeight="108">
<path
android:fillType="evenOdd"
android:pathData="M32,64C32,64 38.39,52.99 44.13,50.95C51.37,48.37 70.14,49.57 70.14,49.57L108.26,87.69L108,109.01L75.97,107.97L32,64Z"
android:strokeWidth="1"
android:strokeColor="#00000000">
<aapt:attr name="android:fillColor">
<gradient
android:endX="78.5885"
android:endY="90.9159"
android:startX="48.7653"
android:startY="61.0927"
android:type="linear">
<item
android:color="#44000000"
android:offset="0.0" />
<item
android:color="#00000000"
android:offset="1.0" />
</gradient>
</aapt:attr>
</path>
<path
android:fillColor="#FFFFFF"
android:fillType="nonZero"
android:pathData="M66.94,46.02L66.94,46.02C72.44,50.07 76,56.61 76,64L32,64C32,56.61 35.56,50.11 40.98,46.06L36.18,41.19C35.45,40.45 35.45,39.3 36.18,38.56C36.91,37.81 38.05,37.81 38.78,38.56L44.25,44.05C47.18,42.57 50.48,41.71 54,41.71C57.48,41.71 60.78,42.57 63.68,44.05L69.11,38.56C69.84,37.81 70.98,37.81 71.71,38.56C72.44,39.3 72.44,40.45 71.71,41.19L66.94,46.02ZM62.94,56.92C64.08,56.92 65,56.01 65,54.88C65,53.76 64.08,52.85 62.94,52.85C61.8,52.85 60.88,53.76 60.88,54.88C60.88,56.01 61.8,56.92 62.94,56.92ZM45.06,56.92C46.2,56.92 47.13,56.01 47.13,54.88C47.13,53.76 46.2,52.85 45.06,52.85C43.92,52.85 43,53.76 43,54.88C43,56.01 43.92,56.92 45.06,56.92Z"
android:strokeWidth="1"
android:strokeColor="#00000000" />
</vector>接下来是layout文件夹，这是前端布局代码，添加以下文件：
activity_fragment.xml
<?xml version="1.0" encoding="utf-8"?>
<android.support.constraint.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:exported="true"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".ManagePagerActivity">
<FrameLayout
android:id="@+id/fragment_container"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="@drawable/t10"/>activity_manage.xml
<?xml version="1.0" encoding="utf-8"?>
<android.support.constraint.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".ManageActivity"
android:background="@drawable/t10">activity_manage_pager.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
android:background="@drawable/t10">
<android.support.v4.view.ViewPager
android:id="@+id/manage_view_pager"
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_weight="1" />
<FrameLayout
android:layout_width="match_parent"
android:layout_height="67dp"
android:padding="16dp">
<Button
android:id="@+id/btn_to_first"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@string/btn_to_first"
android:background="@drawable/round_bg"/>
<Button
android:id="@+id/btn_to_last"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="end"
android:text="@string/btn_to_last"
android:background="@drawable/round_bg"/>
</FrameLayout>
</LinearLayout>dialog_date.xml
<?xml version="1.0" encoding="utf-8"?>
<DatePicker xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/dialog_date_picker"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:calendarViewShown="true"
android:headerBackground="@android:color/holo_blue_bright">
</DatePicker>dialog_photo.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="match_parent">
<ImageView
android:id="@+id/manage_photo_detail"
android:layout_width="match_parent"
android:layout_height="match_parent"/>
</LinearLayout>dialog_time.xml
<?xml version="1.0" encoding="utf-8"?>
<TimePicker xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/dialog_time_picker"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:calendarViewShown="true"
android:timePickerMode="spinner">
</TimePicker>fragment_login.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:gravity="center_horizontal"
android:orientation="vertical"
android:paddingLeft="@dimen/activity_horizontal_margin"
android:paddingTop="@dimen/activity_vertical_margin"
android:paddingRight="@dimen/activity_horizontal_margin"
android:paddingBottom="@dimen/activity_vertical_margin"
android:background="@drawable/t8"
tools:context=".LoginActivity">
<!-- Login progress -->
<ProgressBar
android:id="@+id/login_progress"
style="?android:attr/progressBarStyleLarge"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginBottom="8dp"
android:visibility="gone" />
<ScrollView
android:id="@+id/login_form"
android:layout_width="match_parent"
android:layout_height="match_parent">
<LinearLayout
android:id="@+id/email_login_form"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical">
<android.support.design.widget.TextInputLayout
android:layout_width="match_parent"
android:layout_height="wrap_content">
<AutoCompleteTextView
android:id="@+id/email"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:hint="@string/prompt_email"
android:textColorHint="#000000"
android:textColor="#000000"
android:inputType="textEmailAddress"
android:maxLines="1"
android:singleLine="true" />
</android.support.design.widget.TextInputLayout>
<android.support.design.widget.TextInputLayout
android:layout_width="match_parent"
android:layout_height="wrap_content">
<EditText
android:id="@+id/password"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:hint="@string/prompt_password"
android:textColor="#000000"
android:textColorHint="#000000"
android:imeActionId="6"
android:imeActionLabel="@string/action_sign_in_short"
android:imeOptions="actionUnspecified"
android:inputType="textPassword"
android:maxLines="1"
android:singleLine="true" />
</android.support.design.widget.TextInputLayout>
<Button
android:id="@+id/email_sign_in_button"
style="?android:textAppearanceSmall"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginTop="16dp"
android:text="@string/action_sign_in"
android:background="@drawable/round_bg"
android:textStyle="bold" />
<Button
android:id="@+id/register_button"
style="?android:textAppearanceSmall"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginTop="16dp"
android:text="@string/register_button"
android:background="@drawable/round_bg"
android:textStyle="bold" />
</LinearLayout>
</ScrollView>
</LinearLayout>fragment_manage.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:padding="16dp"
android:background="@drawable/t4">
<LinearLayout
android:orientation="horizontal"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginTop="16dp">
<LinearLayout
android:orientation="vertical"
android:layout_width="wrap_content"
android:layout_height="wrap_content">
<ImageView
android:id="@+id/manage_photo"
android:layout_width="80dp"
android:layout_height="80dp"
android:scaleType="centerInside"
android:cropToPadding="true"
android:background="@android:color/darker_gray"/>
<ImageButton
android:id="@+id/manage_camera"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:src="@android:drawable/ic_menu_camera"/>
</LinearLayout>
<LinearLayout
android:orientation="vertical"
android:layout_width="wrap_content"
android:layout_height="wrap_content">
</LinearLayout>
<LinearLayout
android:orientation="vertical"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="1"
android:layout_marginStart="10dp">
<TextView
style="?android:listSeparatorTextViewStyle"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="@string/manage_title_label"
android:textColor="#000000"/>
<EditText
android:id="@+id/manage_title"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:hint="@string/manage_title_hint"
android:textColorHint="#000000"
android:textColor="#000000"/>
</LinearLayout>
</LinearLayout>
<TextView
style="?android:listSeparatorTextViewStyle"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="@string/manage_details_money"
android:textColor="#000000"/>
<EditText
android:id="@+id/manage_money"
android:layout_width="match_parent"
android:inputType="numberDecimal"
android:layout_height="wrap_content"
android:hint="@string/manage_money_hint"
android:textColorHint="#000000"
android:textColor="#000000"/>
<TextView
style="?android:listSeparatorTextViewStyle"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="@string/manage_details_time"
android:textColor="#000000"/>
<Button
android:id="@+id/manage_date"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="@drawable/round_bg"/>
<Button
android:id="@+id/manage_time"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="@drawable/round_bg"/>
<TextView
style="?android:listSeparatorTextViewStyle"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="@string/manage_details_label"
android:textColor="#000000"/>
<RadioGroup
android:id="@+id/manage_pay_method"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="horizontal">
<RadioButton
android:id="@+id/manage_cash"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:checked="true"
android:text="@string/manage_cash_label"
android:textColor="#000000"/>
<RadioButton
android:id="@+id/manage_card"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="@string/manage_card_label"
android:textColor="#000000"/>
</RadioGroup>
<EditText
android:id="@+id/manage_remark"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:hint="@string/manage_remark_label"
android:textColor="#000000"
android:textColorHint="#000000"/>
<Button
android:id="@+id/manage_report"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="@string/manage_report_text"/>fragment_manage_list.xml
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_height="match_parent"
android:layout_width="match_parent"
android:background="@drawable/t6">
<android.support.v7.widget.RecyclerView
android:id="@+id/manage_recycler_view"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_alignParentStart="true"
android:layout_alignParentTop="true"
android:textColor="#000000"
android:textSize="30dp" />
<TextView
android:id="@+id/null_manage_list"
style="?android:listSeparatorTextViewStyle"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentTop="true"
android:layout_centerHorizontal="true"
android:layout_marginTop="280dp"
android:text="@string/null_manage_list_text"
android:textColor="#000000"
android:textSize="20dp" />
<Button
android:id="@+id/add_manage"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_below="@+id/null_manage_list"
android:layout_marginLeft="32dp"
android:layout_marginRight="32dp"
android:text="@string/add_manage"
android:textColor="#000000"
android:textSize="25dp"
android:background="@drawable/round_bg"/>
</RelativeLayout>fragment_register.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:gravity="center_horizontal"
android:orientation="vertical"
android:paddingLeft="@dimen/activity_horizontal_margin"
android:paddingTop="@dimen/activity_vertical_margin"
android:paddingRight="@dimen/activity_horizontal_margin"
android:paddingBottom="@dimen/activity_vertical_margin"
android:background="@drawable/t4"
tools:context=".RegisterActivity">
<!-- Login progress -->
<ProgressBar
android:id="@+id/register_progress"
style="?android:attr/progressBarStyleLarge"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginBottom="8dp"
android:visibility="gone" />
<ScrollView
android:id="@+id/register_form"
android:layout_width="match_parent"
android:layout_height="match_parent">
<LinearLayout
android:id="@+id/email_register_form"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical">
<android.support.design.widget.TextInputLayout
android:layout_width="match_parent"
android:layout_height="wrap_content">
<AutoCompleteTextView
android:id="@+id/email"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:hint="@string/prompt_email"
android:textColor="#000000"
android:textColorHint="#000000"
android:inputType="textEmailAddress"
android:maxLines="1"
android:singleLine="true" />
</android.support.design.widget.TextInputLayout>
<android.support.design.widget.TextInputLayout
android:layout_width="match_parent"
android:layout_height="wrap_content">
<EditText
android:id="@+id/password"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:hint="@string/prompt_password"
android:textColorHint="#000000"
android:textColor="#000000"
android:imeActionId="6"
android:imeActionLabel="@string/action_sign_in_short"
android:imeOptions="actionUnspecified"
android:inputType="textPassword"
android:maxLines="1"
android:singleLine="true" />
</android.support.design.widget.TextInputLayout>
<Button
android:id="@+id/email_sign_in_button"
style="?android:textAppearanceSmall"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginTop="16dp"
android:text="@string/action_register_in"
android:background="@drawable/round_bg"
android:textStyle="bold" />
</LinearLayout>
</ScrollView>
</LinearLayout>fragment_search.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
android:background="@drawable/t7">
<TextView
android:id="@+id/textView_search"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:text="@string/search"
android:textColor="#000000"
android:textSize="30dp" />
<EditText
android:id="@+id/edit_search"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:hint="@string/edit_search"
android:textColor="#000000"
android:textSize="20dp"
android:textColorHint="#000000"/>
<Button
android:id="@+id/button_search1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:text="@string/search"
android:textSize="20dp"
android:background="@drawable/round_bg"/>fragment_statistic.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical" android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="@drawable/t5">
<EditText
android:id="@+id/edit_year"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:hint="@string/edit_year"
android:textColorHint="#000000"
android:textColor="#000000"
android:textSize="20sp" />
<EditText
android:id="@+id/edit_month"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:hint="@string/edit_month"
android:textColor="#000000"
android:textSize="20sp"
android:textColorHint="#000000"/>
<EditText
android:id="@+id/edit_day"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:hint="@string/edit_day"
android:textColor="#000000"
android:textSize="20sp"
android:textColorHint="#000000"/>
<Button
android:id="@+id/button_statistic"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:text="统计金额"
android:textColor="#000000"
android:textSize="20dp"
android:background="@drawable/round_bg"/>
<TextView
android:id="@+id/text_money"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:gravity="center"
android:textColor="#000000"
android:layout_marginTop="100dp"
android:layout_gravity="center"
android:textSize="20dp"
android:hint="是否超出预算"
android:textColorHint="#000000"/>
</LinearLayout>list_item_manage.xml
<?xml version="1.0" encoding="utf-8"?>
<android.support.constraint.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:id="@+id/linearLayout"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_margin="8dp">
<TextView
android:id="@+id/manage_title"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_marginStart="16dp"
android:layout_marginTop="16dp"
android:layout_marginEnd="8dp"
android:text="@string/item_manage_title"
android:textSize="18sp"
app:layout_constraintBottom_toTopOf="@+id/manage_date"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent"
app:layout_constraintVertical_chainStyle="packed" />
<TextView
android:id="@+id/manage_date"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_marginStart="16dp"
android:layout_marginTop="8dp"
android:layout_marginEnd="8dp"
android:text="@string/item_manage_date"
android:textColor="#000000"
android:textColorHint="#000000"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="@+id/manage_title" />接下来是menu文件夹，添加以下文件：
fragment_manage.xml
<?xml version="1.0" encoding="utf-8"?>
<menu xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto">
<item
android:id="@+id/delete_manage"
android:icon="@drawable/ic_menu_delete"
app:showAsAction="ifRoom|withText"
android:title="@string/delete_manage" />fragment_manage_list.xml
<?xml version="1.0" encoding="utf-8"?>
<menu xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto">
<item
android:id="@+id/new_manage"
android:icon="@drawable/ic_menu_add"
android:title="@string/new_manage"
app:showAsAction="ifRoom|withText" />
<item
android:id="@+id/search_manage"
android:icon="@drawable/ic_menu_search"
android:title="@string/search"
app:showAsAction="ifRoom|withText" />
<item
android:id="@+id/statistic_manage"
android:icon="@drawable/ic_menu_statistic"
android:title="@string/item_statistic"
app:showAsAction="ifRoom|withText" />
<item
android:id="@+id/show_subtitle"
android:title="@string/show_subtitle"
app:showAsAction="ifRoom" />
</menu>接下来是mipmap-anydpi-v26文件夹，包括以下文件：
ic_launcher.xml
<?xml version="1.0" encoding="utf-8"?>
<adaptive-icon xmlns:android="http://schemas.android.com/apk/res/android">
<background android:drawable="@drawable/ic_launcher_background" />
<foreground android:drawable="@drawable/ic_launcher_foreground" />
</adaptive-icon>ic_launcher_round.xml
<?xml version="1.0" encoding="utf-8"?>
<adaptive-icon xmlns:android="http://schemas.android.com/apk/res/android">
<background android:drawable="@drawable/ic_launcher_background" />
<foreground android:drawable="@drawable/ic_launcher_foreground" />
</adaptive-icon>接下来是values文件夹，其包括colors.xml dimens.xml strings.xml styles.xml
colors.xml
<?xml version="1.0" encoding="utf-8"?>
<resources>
<color name="colorPrimary">#0099ff</color>
<color name="colorPrimaryDark">#0099ff</color>
<color name="colorAccent">#03dac5</color>
</resources>dimens.xml
<resources>
<!-- Default screen margins, per the Android Design guidelines. -->
<dimen name="activity_horizontal_margin">16dp</dimen>
<dimen name="activity_vertical_margin">16dp</dimen>
<dimen name="text_margin">16dp</dimen>
</resources>strings.xml
<resources>
<string name="app_name">理财小助手</string>
<!-- Strings related to login -->
<string name="prompt_email">邮箱</string>
<string name="prompt_password">密码</string>
<string name="action_sign_in">登录</string>
<string name="action_register_in">注册</string>
<string name="action_sign_in_short">Sign in</string>
<string name="error_invalid_email">无效的邮箱地址</string>
<string name="error_error_acpw">账号或密码错误</string>
<string name="error_invalid_password">密码太短</string>
<string name="error_incorrect_password">密码错误</string>
<string name="error_field_required">必填</string>
<string name="permission_rationale">"Contacts permissions are needed for providing email
completions."
</string>
<string name="manage_title_hint">加一个标题吧</string>
<string name="manage_title_label">项目名称</string>
<string name="manage_details_money">金额</string>
<string name="manage_money_hint">快写上你花了多少钱</string>
<string name="manage_details_label">支付方式</string>
<string name="manage_details_time">时间</string>
<string name="manage_cash_label">现金</string>
<string name="manage_card_label">银行卡</string>
<string name="manage_remark_label">备注</string>
<string name="btn_to_first">To First</string>
<string name="btn_to_last">To Last</string>
<string name="date_picker_title">记录日期</string>
<string name="new_manage">新记录</string>
<string name="show_subtitle">显示记录条数</string>
<string name="hide_subtitle">隐藏记录条数</string>
<string name="subtitle_format">%1$d 条记录</string>
<string name="delete_manage">删除记录</string>
<string name="null_manage_list_text">尚未存在理财记录</string>
<string name="add_manage">添加记录</string>
<string name="manage_report_text">发送理财报告</string>
<string name="manage_report">%1$s! 理财在 %2$s. %3$s 和 %4$s发生</string>
<string name="manage_report_cash">现金支付</string>
<string name="manage_report_card">信用卡支付</string>
<string name="manage_report_subject">PersonalFinanceAssistant理财报告</string>
<string name="send_report">发送理财报告通过: </string>
<string name="item_manage_title">Manage Title</string>
<string name="item_manage_date">Manage Date</string>
<string name="register_button">还没有注册?点我注册</string>
<string name="search">搜索</string>
<string name="edit_search">输入你想搜索的内容</string>
<string name="edit_year">输入年</string>
<string name="edit_month">输入月</string>
<string name="edit_day">输入日</string>
<string name="item_statistic">统计</string>
</resources>styles.xml
<resources>
<!-- Base application theme. -->
<style name="AppTheme" parent="Theme.AppCompat">
<!-- Customize your theme here. -->
<item name="colorPrimary">#000000</item>
<item name="colorPrimaryDark">#000000</item>
<item name="colorAccent">#000000</item>
</style>
</resources>接下来是xml文件夹，其中包括了一个文件files.xml
files.xml
<?xml version="1.0" encoding="utf-8"?>
<paths>
<files-path
name="crime_photos"
path="." />
</paths>清单文件：
AndroidManifest.xml
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="wengxiaoyang.personalfinanceassistant">
<!-- To auto-complete the email text field in the login form with the user's emails -->
<uses-permission android:name="android.permission.GET_ACCOUNTS" />
<uses-permission android:name="android.permission.READ_PROFILE" />
<uses-permission android:name="android.permission.READ_CONTACTS" />
<uses-feature
android:name="android.hardware.camera2"
android:required="false" />
<application
android:allowBackup="true"
android:icon="@mipmap/ic_launcher"
android:label="@string/app_name"
android:roundIcon="@mipmap/ic_launcher_round"
android:supportsRtl="true"
android:theme="@style/AppTheme">
<activity android:name=".StatisticActivity"></activity>
<activity android:name=".SearchActivity" />
<activity android:name=".RegisterActivity" />
<activity
android:name=".LoginActivity"
android:label="@string/app_name">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<activity android:name=".ManageListActivity" />
<activity
android:name=".ManagePagerActivity"
android:parentActivityName=".ManageListActivity" />
<provider
android:name="android.support.v4.content.FileProvider"
android:authorities="wengxiaoyang.personalfinanceassistant.fileprovider"
android:exported="false"
android:grantUriPermissions="true">
<meta-data
android:name="android.support.FILE_PROVIDER_PATHS"
android:resource="@xml/files" />
</provider>
</application>
</manifest>最后一个test文件夹
ExampleUnitTest
package wengxiaoyang.personalfinanceassistant;
import org.junit.Test;
import static org.junit.Assert.*;
/**
* Example local unit test, which will execute on the development machine (host).
*
* @see <a href="http://d.android.com/tools/testing">Testing documentation</a>
*/
public class ExampleUnitTest {
@Test
public void addition_isCorrect() {
assertEquals(4, 2 + 2);
}
}怕你们还没有弄清楚，现在将工程目录再进行截图：
最后的java代码不知道为什么会报错，但是程序能够运行，希望大佬知道原因的评论区交流一下。
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