1.基本使用流程
Step 1：创建AlertDialog.Builder对象；
Step 2：调用setIcon()设置图标，setTitle()或setCustomTitle()设置标题；
Step 3：设置对话框的内容：setMessage()还有其他方法来指定显示的内容；
Step 4：调用setPositive/Negative/NeutralButton()设置：确定，取消，中立按钮；
Step 5：调用create()方法创建这个对象，再调用show()方法将对话框显示出来；
类型 | 实现方法 | 注释 |
普通Dialog | |
|
多按钮 Dialog | | 只是比上一种按钮多了setNeutralButton，具体方法不变 |
列表 Dialog |
| /** 小标从0开始 |
单项选择 Dialog | |
|
多项选择 Dialog | |
|
setSingleChoiceItems()有四个重载的方法：
1、从资源文件中装载数据：
public AlertDialog.Builder setSingleChoiceItems(int itemsId, int checkedItem, final OnClickListener listener)
2、从数据集中装载数据
public AlertDialog.Builder setSingleChoiceItems(Cursor cursor, int checkedItem, String labelColumn, final OnClickListener listener)
3、从字符串数组中装载数据
public AlertDialog.Builder setSingleChoiceItems(CharSequence[] items, int checkedItem, final OnClickListener listener)
4、从ListAdapter对象中装载数据
public AlertDialog.Builder setSingleChoiceItems(ListAdapter adpater, int checkedItem, final OnClickListener listener)
我们只需要关注第二个参数：
checkedItem：指定哪个项目被选中，默认为0表示选中第一个项目，-1表示没有项目被选中
比如当为0时
当为-1时
package com.example.administrator.test;
import android.app.AlertDialog;
import android.content.DialogInterface;
import android.graphics.drawable.AnimationDrawable;
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.view.View;
import android.widget.Button;
import android.widget.TextView;
import android.widget.Toast;
import java.util.ArrayList;
public class MainActivity extends AppCompatActivity {
public static AnimationDrawable animationDrawable;
public int yourChose=-1;
ArrayList<Integer>myChose=new ArrayList<Integer>();
@Override
protected void onCreate(Bundle savedInstanceState) {
Button button1,button2,button3,button4,button5;
final TextView textView;
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
button1=(Button)findViewById(R.id.button1);
button2=(Button)findViewById(R.id.button2);
button3=(Button)findViewById(R.id.button3);
button4=(Button)findViewById(R.id.button4);
button5=(Button)findViewById(R.id.button5);
textView=(TextView)findViewById(R.id.textView);
/**
* 普通按钮实现
*/
final AlertDialog.Builder builder1=new AlertDialog.Builder(this);
button1.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
builder1.setMessage("真的删除该联系人吗？").setPositiveButton("是",new DialogInterface.OnClickListener(){
public void onClick(DialogInterface dialog,int which){
textView.setText("成功删除");
}
}).setNegativeButton("否",new DialogInterface.OnClickListener(){
public void onClick(DialogInterface dialog,int which){
textView.setText("取消删除");
}
});
AlertDialog ad=builder1.create();
ad.show();
}
});
/**
* 多按钮实现
*/
final AlertDialog.Builder builder2=new AlertDialog.Builder(this);
button2.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
builder2.setTitle("多按钮Dialog").setPositiveButton("按钮一", new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int which) {
Toast.makeText(MainActivity.this, "按钮一", Toast.LENGTH_SHORT).show();
}
}).setNeutralButton("按钮二", new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int which) {
Toast.makeText(MainActivity.this, "按钮二", Toast.LENGTH_SHORT).show();
}
}).setNegativeButton("按钮三", new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int which) {
Toast.makeText(MainActivity.this, "按钮三", Toast.LENGTH_SHORT).show();
}
});
AlertDialog ad=builder2.create();
ad.show();
}
});
/**
* 列表对话框实现
*/
final String[] mList={"选项一","选项二","选项三","选项四","选项五"};
final AlertDialog.Builder builder3=new AlertDialog.Builder(MainActivity.this);
button3.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
builder3.setTitle("列表对话框");
builder3.setItems(mList, new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
/**
* 小标从0开始
*/
Toast.makeText(MainActivity.this, mList[which], Toast.LENGTH_SHORT).show();
}
});
AlertDialog ad = builder3.create();
ad.show();
}
});
/**
* 单项选择实现
*/
final String[] kList={"选项一","选项二","选项三","选项四","选项五"};
final AlertDialog.Builder builder4=new AlertDialog.Builder(MainActivity.this);
button4.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
builder4.setTitle("单项选择对话框");
builder4.setSingleChoiceItems(kList, 0, new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
yourChose = which;
}
});
builder4.setPositiveButton("确定", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
if (yourChose != -1)
Toast.makeText(MainActivity.this, kList[yourChose], Toast.LENGTH_SHORT).show();
}
});
AlertDialog ad=builder4.create();
ad.show();
}
});
/**
* 多项选择的实现
*/
final String[] pList = {"选项一", "选项二", "选项三", "选项四", "选项五"};
final boolean mChoseSts[] = {false, false, false, false, false};
myChose.clear();
final AlertDialog.Builder builder5=new AlertDialog.Builder(MainActivity.this);
button5.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
builder5.setTitle("多项选择对话框").setMultiChoiceItems(pList, mChoseSts, new DialogInterface.OnMultiChoiceClickListener() {
@Override
public void onClick(DialogInterface dialog, int which, boolean isChecked) {
mChoseSts[which]=isChecked;
}
});
builder5.setPositiveButton("确定", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
String str = "";
for (int i = 0; i < mChoseSts.length; i++) {
if(mChoseSts[i])
str+=pList[i];
}
Toast.makeText(MainActivity.this, str, Toast.LENGTH_SHORT).show();
}
});
AlertDialog ad=builder5.create();
ad.show();
}
});
}
}
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/layout"
android:layout_height="fill_parent"
android:layout_width="fill_parent"
android:orientation="vertical"
android:weightSum="1">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="New Text"
android:id="@+id/textView" />
<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="普通Dialog"
android:id="@+id/button1" />
<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="多按钮Dialog"
android:id="@+id/button2"/>
<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="列表Dialog"
android:id="@+id/button3"/>
<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="单项选择Dialog"
android:id="@+id/button4"/>
<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="多项选择Dialog"
android:id="@+id/button5"/>
</LinearLayout>
最终效果：
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