<?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"
 tools:context="com.example.lyp1020k.lv.MainActivity"
 android:orientation="vertical">
 
 <Button
 android:id="@+id/button1"
 android:text="列表框"
 android:onClick="showList"
 android:layout_width="match_parent"
 android:layout_height="wrap_content" />
 
 <Button
 android:id="@+id/button2"
 android:text="單選列表"
 android:onClick="showSingleAlertDialog"
 android:layout_width="match_parent"
 android:layout_height="wrap_content" />
 
 <Button
 android:id="@+id/button3"
 android:text="多選按鈕"
 android:onClick="showMutilAlertDialog"
 android:layout_width="match_parent"
 android:layout_height="wrap_content" />
 
</LinearLayout>

import android.content.DialogInterface;
import android.support.v7.app.AlertDialog;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.Menu;
import android.view.View;
import android.widget.Button;
import android.widget.Toast;
 
public class MainActivity extends AppCompatActivity {
 
 private AlertDialog alertDialog1; //信息框
 private AlertDialog alertDialog2; //單選框
 private AlertDialog alertDialog3; //多選框
 
 private Button button1;
 private Button button2;
 private Button button3;
 
 @Override
 protected void onCreate(Bundle savedInstanceState) {
 super.onCreate(savedInstanceState);
 setContentView(R.layout.activity_main);
 init();
 }
 
 public void init(){
 button1 = (Button) findViewById(R.id.button1);
 button2 = (Button) findViewById(R.id.button2);
 button3 = (Button) findViewById(R.id.button3);
 }
 
 @Override
 public boolean onCreateOptionsMenu(Menu menu) {
 getMenuInflater().inflate(R.menu.mian, menu);
 return true;
 }
 
 public void showList(View view){
 final String[] items = {"列表1", "列表2", "列表3", "列表4"};
 AlertDialog.Builder alertBuilder = new AlertDialog.Builder(this);
 alertBuilder.setTitle("這是列表框");
 alertBuilder.setItems(items, new DialogInterface.OnClickListener() {
 @Override
 public void onClick(DialogInterface dialogInterface, int i) {
 Toast.makeText(MainActivity.this, items[i], Toast.LENGTH_SHORT).show();
 alertDialog1.dismiss();
 }
 });
 alertDialog1 = alertBuilder.create();
 alertDialog1.show();
 }
 
 public void showSingleAlertDialog(View view){
 final String[] items = {"單選1", "單選2", "單選3", "單選4"};
 AlertDialog.Builder alertBuilder = new AlertDialog.Builder(this);
 alertBuilder.setTitle("這是單選框");
 alertBuilder.setSingleChoiceItems(items, 0, new DialogInterface.OnClickListener() {
 @Override
 public void onClick(DialogInterface dialogInterface, int i) {
 Toast.makeText(MainActivity.this, items[i], Toast.LENGTH_SHORT).show();
 }
 });
 
 alertBuilder.setPositiveButton("確定", new DialogInterface.OnClickListener() {
 @Override
 public void onClick(DialogInterface dialogInterface, int i) {
 alertDialog2.dismiss();
 }
 });
 
 alertBuilder.setNegativeButton("取消", new DialogInterface.OnClickListener() {
 @Override
 public void onClick(DialogInterface dialogInterface, int i) {
 alertDialog2.dismiss();
 }
 });
 
 alertDialog2 = alertBuilder.create();
 alertDialog2.show();
 }
 
 public void showMutilAlertDialog(View view){
 final String[] items = {"多選1", "多選2", "多選3", "多選4"};
 AlertDialog.Builder alertBuilder = new AlertDialog.Builder(this);
 alertBuilder.setTitle("這是多選框");
 /**
 *第一個參數(shù):彈出框的消息集合，一般為字符串集合
 * 第二個參數(shù)：默認被選中的，布爾類數(shù)組
 * 第三個參數(shù)：勾選事件監(jiān)聽
 */
 alertBuilder.setMultiChoiceItems(items, null, new DialogInterface.OnMultiChoiceClickListener() {
 @Override
 public void onClick(DialogInterface dialogInterface, int i, boolean isChecked) {
 if (isChecked){
  Toast.makeText(MainActivity.this, "選擇" + items[i], Toast.LENGTH_SHORT).show();
 }else {
  Toast.makeText(MainActivity.this, "取消選擇" + items[i], Toast.LENGTH_SHORT).show();
 }
 }
 });
 alertBuilder.setPositiveButton("確定", new DialogInterface.OnClickListener() {
 @Override
 public void onClick(DialogInterface dialogInterface, int i) {
 alertDialog3.dismiss();
 }
 });
 
 alertBuilder.setNegativeButton("取消", new DialogInterface.OnClickListener() {
 @Override
 public void onClick(DialogInterface dialogInterface, int i) {
 alertDialog3.dismiss();
 }
 });
 
 
 alertDialog3 = alertBuilder.create();
 alertDialog3.show();
 }
}