首先，我把把昨天忘记了的两张设置向导的图片放出来先
我们从上面的第一张图片可以看到，我们有一个选择联系人这一操作，那么怎样才能获取到手机里面的联系人呢，其实方法有很多的，现在我们来讲一下我们这个项目里面用到的方法
其实要想知道怎样获取手机里面的联系人，去看一下Android自己的源码就知道的了
我们只要把platform/packages/providers/ContactsProvider这一部分的内容下载下来看看就可以的啦
下面是我下载之后，打开里面的AndroidManifest的内容
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.android.providers.contacts"
android:sharedUserId="android.uid.shared"
android:sharedUserLabel="@string/sharedUserLabel">
<permission
android:name="com.android.voicemail.permission.READ_WRITE_ALL_VOICEMAIL"
android:label="@string/read_write_all_voicemail_label"
android:description="@string/read_write_all_voicemail_description"
android:permissionGroup="android.permission-group.PERSONAL_INFO"
android:protectionLevel="signature"
/>
<uses-permission android:name="android.permission.READ_CONTACTS" />
<uses-permission android:name="android.permission.WRITE_CONTACTS" />
<uses-permission android:name="android.permission.GET_ACCOUNTS" />
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />
<uses-permission android:name="android.permission.BIND_DIRECTORY_SEARCH" />
<uses-permission android:name="android.permission.UPDATE_APP_OPS_STATS" />
<uses-permission android:name="android.permission.READ_SYNC_SETTINGS" />
<uses-permission android:name="com.android.voicemail.permission.ADD_VOICEMAIL" />
<uses-permission android:name="com.android.voicemail.permission.READ_WRITE_ALL_VOICEMAIL" />
<application android:process="android.process.acore"
android:label="@string/app_label"
android:icon="@drawable/app_icon"
android:allowBackup="false">
<provider android:name="ContactsProvider2"
android:authorities="contacts;com.android.contacts"
android:label="@string/provider_label"
android:multiprocess="false"
android:exported="true"
android:readPermission="android.permission.READ_CONTACTS"
android:writePermission="android.permission.WRITE_CONTACTS">
<path-permission
android:pathPrefix="/search_suggest_query"
android:readPermission="android.permission.GLOBAL_SEARCH" />
<path-permission
android:pathPrefix="/search_suggest_shortcut"
android:readPermission="android.permission.GLOBAL_SEARCH" />
<path-permission
android:pathPattern="/contacts/.*/photo"
android:readPermission="android.permission.GLOBAL_SEARCH" />
<grant-uri-permission android:pathPattern=".*" />
</provider>
<provider android:name="CallLogProvider"
android:authorities="call_log"
android:syncable="false" android:multiprocess="false"
android:exported="true"
android:readPermission="android.permission.READ_CALL_LOG"
android:writePermission="android.permission.WRITE_CALL_LOG">
</provider>
<provider android:name="VoicemailContentProvider"
android:authorities="com.android.voicemail"
android:syncable="false" android:multiprocess="false"
android:exported="true"
android:permission="com.android.voicemail.permission.ADD_VOICEMAIL">
</provider>
<!-- Handles database upgrades after OTAs, then disables itself -->
<receiver android:name="ContactsUpgradeReceiver">
<!-- This broadcast is sent after the core system has finished
booting, before the home app is launched or BOOT_COMPLETED
is sent. -->
<intent-filter>
<action android:name="android.intent.action.PRE_BOOT_COMPLETED"/>
</intent-filter>
</receiver>
<receiver android:name="PackageIntentReceiver">
<intent-filter>
<action android:name="android.intent.action.PACKAGE_ADDED" />
<data android:scheme="package" />
</intent-filter>
<intent-filter>
<action android:name="android.intent.action.PACKAGE_REPLACED" />
<data android:scheme="package" />
</intent-filter>
<intent-filter>
<action android:name="android.intent.action.PACKAGE_REMOVED" />
<data android:scheme="package" />
</intent-filter>
<intent-filter>
<action android:name="android.intent.action.PACKAGE_CHANGED" />
<data android:scheme="package" />
</intent-filter>
</receiver>
<receiver android:name="LocaleChangeReceiver">
<intent-filter>
<action android:name="android.intent.action.LOCALE_CHANGED"/>
</intent-filter>
</receiver>
<service android:name="VoicemailCleanupService"/>
<activity android:name=".debug.ContactsDumpActivity"
android:label="@string/debug_dump_title"
android:theme="@android:style/Theme.Holo.Dialog"
>
<intent-filter>
<action android:name="com.android.providers.contacts.DUMP_DATABASE"/>
<category android:name="android.intent.category.DEFAULT"/>
</intent-filter>
</activity>
<provider android:name=".debug.DumpFileProvider"
android:authorities="com.android.contacts.dumpfile"
android:exported="true">
</provider>
</application>
</manifest>
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我们可以看一下第一个provider，里面就有我们想要的uri还有它已经写好了的类了，各位有兴趣的可以去看一下是如何实现的， 其实我们要获取的东西，都是存放在一个数据库里面的，我们不妨把那个数据库拿出来看一下，拿到那个数据库也很简单，只要在Eclipse里面的ddms界面里面，在右上边
那个contacts2.db就是我们想要的东西啦我们可以把它导出来，然后用SQLite Database browser来打开它
获取手机里面的联系人，我们只要关注三个表就可以啦，一个是raw_contacts data还有一个mime_type这三个表就行啦mime_type存放的就是一些类型，是电话，还是短信，还是E-mail这些data就是存放一些数据的东西raw_contacts就是存放一些命名什么的这三个表的关系就是下面一样的啦
从上面的可以看到，我们可以通过raw_contacts拿到那个id还有display_name然后就去data那里找到对应的raw_contact_id，这样就可以获得对应的数据啦，然后还可以通过mimetype_id在mime_type表里面找出想要的类型好啦，原理就是这样啦，下面我们来看一下代码怎么写我们先要用一个model类来存放我们的数据com.xiaobin.security.domain.ContactInfo
package com.xiaobin.security.domain;
public class ContactInfo
{
private String name;
private String phone;
public String getName()
{
return name;
}
public void setName(String name)
{
this.name = name;
}
public String getPhone()
{
return phone;
}
public void setPhone(String phone)
{
this.phone = phone;
}
}
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然后呢，我们就可以写我们获得手机联系人的代码啦新建一个类com.xiaobin.security.engine.ContactInfoService
package com.xiaobin.security.engine;
import java.util.ArrayList;
import java.util.List;
import android.content.ContentResolver;
import android.content.Context;
import android.database.Cursor;
import android.net.Uri;
import com.xiaobin.security.domain.ContactInfo;
public class ContactInfoService
{
private Context context;
public ContactInfoService(Context context)
{
this.context = context;
}
public List<ContactInfo> getContactInfos()
{
List<ContactInfo> infos = new ArrayList<ContactInfo>();
ContactInfo info;
ContentResolver contentResolver = context.getContentResolver();
//在源码的AndroidManifest里面可以看到这些uri
Uri uri = Uri.parse("content://com.android.contacts/raw_contacts");
Uri dataUri = Uri.parse("content://com.android.contacts/data");
Cursor cursor = contentResolver.query(uri, null, null, null, null);
while(cursor.moveToNext())
{
info = new ContactInfo();
String id = cursor.getString(cursor.getColumnIndex("_id"));
String name = cursor.getString(cursor.getColumnIndex("display_name"));
info.setName(name);
//通过raw_contacts里面的id拿到data里面对应的数据
Cursor dataCursor = contentResolver.query(dataUri, null, "raw_contact_id = ? ", new String[] {id}, null);
while(dataCursor.moveToNext())
{
String type = dataCursor.getString(dataCursor.getColumnIndex("mimetype"));
//根据类型，只要电话这种类型的数据
if(type.equals("vnd.android.cursor.item/phone_v2"))
{
String number = dataCursor.getString(dataCursor.getColumnIndex("data1"));//拿到数据
info.setPhone(number);
}
}
dataCursor.close();
infos.add(info);
info = null;
}
cursor.close();
return infos;
}
}
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因为我们是点击按钮，然后打开一个activity，然后选择好了之后，再把值返回到原来的activity那里的，所以我们就要用到startActivityForResult这个方法啦好，我们来看一下setup_guide3这个向导页面的逻辑是怎样写的com.xiaobin.security.ui.SetupGuide3Activity
package com.xiaobin.security.ui;
import android.app.Activity;
import android.content.Context;
import android.content.Intent;
import android.content.SharedPreferences;
import android.content.SharedPreferences.Editor;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.EditText;
import android.widget.Toast;
import com.xiaobin.security.R;
public class SetupGuide3Activity extends Activity implements OnClickListener
{
private Button bt_next;
private Button bt_pervious;
private Button bt_select;
private EditText et_phoneNumber;
private SharedPreferences sp;
@Override
protected void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.setup_guide3);
sp = getSharedPreferences("config", Context.MODE_PRIVATE);
bt_next = (Button) findViewById(R.id.bt_guide_next);
bt_pervious = (Button) findViewById(R.id.bt_guide_pervious);
bt_select = (Button) findViewById(R.id.bt_guide_select);
bt_next.setOnClickListener(this);
bt_pervious.setOnClickListener(this);
bt_select.setOnClickListener(this);
et_phoneNumber = (EditText) findViewById(R.id.et_guide_phoneNumber);
}
//重写这个方法，从acitivty里面拿到数据
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data)
{
super.onActivityResult(requestCode, resultCode, data);
//resultCode是乃至区分拿到的activity是从那一个activity里面拿到的
if(data != null)
{
String number = data.getStringExtra("number");
et_phoneNumber.setText(number);
}
}
@Override
public void onClick(View v)
{
switch(v.getId())
{
case R.id.bt_guide_select :
Intent selectIntent = new Intent(this, SelectContactActivity.class);
//启动一个activity来获取数据，获取到的数据是在重写的onActivityResult这个方法里面拿到的
startActivityForResult(selectIntent, 1);
break;
case R.id.bt_guide_next :
String number = et_phoneNumber.getText().toString().trim();
if(number.equals(""))
{
Toast.makeText(this, "安全号码不能为空", Toast.LENGTH_SHORT).show();
}
else
{
Editor editor = sp.edit();
editor.putString("number", number);
editor.commit();
Intent intent = new Intent(this, SetupGuide4Activity.class);
finish();
startActivity(intent);
//这个是定义activity切换时的动画效果的
overridePendingTransition(R.anim.translate_in, R.anim.translate_out);
}
break;
case R.id.bt_guide_pervious :
Intent i = new Intent(this, SetupGuide2Activity.class);
finish();
startActivity(i);
//这个是定义activity切换时的动画效果的
overridePendingTransition(R.anim.alpha_in, R.anim.alpha_out);
break;
default :
break;
}
}
}
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我们还要新建一个类用来做为选择的呢com.xiaobin.security.ui.SelectContactActivity
package com.xiaobin.security.ui;
import java.util.List;
import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.view.ViewGroup;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.BaseAdapter;
import android.widget.ListView;
import android.widget.TextView;
import com.xiaobin.security.R;
import com.xiaobin.security.domain.ContactInfo;
import com.xiaobin.security.engine.ContactInfoService;
public class SelectContactActivity extends Activity
{
private ListView lv;
private List<ContactInfo> infos;
@Override
protected void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.select_contact);
infos = new ContactInfoService(this).getContactInfos();
lv = (ListView) findViewById(R.id.lv_select_contact);
lv.setAdapter(new SelectContactAdapter());
lv.setOnItemClickListener(new OnItemClickListener()
{
@Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id)
{
String number = infos.get(position).getPhone();
Intent intent = new Intent();
intent.putExtra("number", number);
//把要返回的数据设置进去，便通过onActivityResult(int, int, Intent)拿到
setResult(1, intent);
finish();
}
});
}
//=================================================================================
private class SelectContactAdapter extends BaseAdapter
{
@Override
public int getCount()
{
return infos.size();
}
@Override
public Object getItem(int position)
{
return infos.get(position);
}
@Override
public long getItemId(int position)
{
return position;
}
@Override
public View getView(int position, View convertView, ViewGroup parent)
{
ContactInfo info = infos.get(position);
View view;
ContactViews views;
if(convertView == null)
{
views = new ContactViews();
view = View.inflate(SelectContactActivity.this, R.layout.contact_item, null);
views.tv_name = (TextView) view.findViewById(R.id.tv_contact_name);
views.tv_number = (TextView) view.findViewById(R.id.tv_contact_number);
views.tv_name.setText("联系人：" + info.getName());
views.tv_number.setText("联系电话：" + info.getPhone());
view.setTag(views);
}
else
{
view = convertView;
}
return view;
}
}
private class ContactViews
{
TextView tv_name;
TextView tv_number;
}
}
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这个类是非常简单的，只有一个listView大家也可以看到，这个类里面有一个adapter，这个是为了方便，所以写在里面的，而且那个listview我们也用到了上一次的优化方法如果有什么不了解的，可以回去看一下我们前面的那个Android项目实战--手机卫士06--GridView的优化与修改Button的显示样式好啦，下面是activity的布局文件，还有listview的布局文件select_contact.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:background="@android:color/white"
android:orientation="vertical" >
<ListView
android:id="@+id/lv_select_contact"
android:layout_width="match_parent"
android:layout_height="match_parent" />
</LinearLayout>
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contact_item.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" >
<TextView
android:id="@+id/tv_contact_name"
android:layout_width="match_parent"
android:layout_height="wrap_content"/>
<TextView
android:id="@+id/tv_contact_number"
android:layout_width="match_parent"
android:layout_height="wrap_content"/>
</LinearLayout>
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好啦，获取联系人的操作，我们也差不多完成的啦，现在还要加上两个权限
<uses-permission android:name="android.permission.READ_CONTACTS" />
<uses-permission android:name="android.permission.WRITE_CONTACTS"/>
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到现在为止，获取联系人的操作就完成的啦，因为之前都是清一色的切换效果，所以我现写多了两个切换效果，大家可以看看，也是很简单的至于怎么写那些效果，那就要看一下我们的前一篇文章啦translate_in.xml
<?xml version="1.0" encoding="utf-8"?>
<translate xmlns:android="http://schemas.android.com/apk/res/android"
android:fromXDelta="100%p"
android:toXDelta="0"
android:duration="400" >
<!-- 100%p是指从看不到的地方进入到0这个地方 -->
</translate>
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translate_out.xml
<?xml version="1.0" encoding="utf-8"?>
<translate xmlns:android="http://schemas.android.com/apk/res/android"
android:fromXDelta="0"
android:toXDelta="-100%p"
android:duration="400" >
<!-- 100%p是指从看不到的地方进入到0这个地方 -->
</translate>
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好啦，今天要说的基本上已经说完的啦如果有什么不明白的，或有什么指导的，欢迎留言
Security_08获取手机联系人.rar (641.15 KB, 下载次数: 116)
