Android的List Dialog实例

1 按钮单击事件的主要内容

final CharSequence[] charSequences = {"aa","bb","cc"};AlertDialog.Builder builder= new AlertDialog.Builder(MainActivity.this);builder.setTitle("ok").setIcon(R.drawable.ic_launcher).setItems(charSequences, new DialogInterface.OnClickListener() {@Overridepublic void onClick(DialogInterface dialog, int which) {Toast.makeText(MainActivity.this, charSequences[which],Toast.LENGTH_SHORT).show();Log.i("abc", "i"+which);}}).show();

2 结果图

3 完整代码

package com.example.a;import android.app.Activity;import android.app.AlertDialog;import android.app.Dialog;import android.content.DialogInterface;import android.os.Bundle;import android.util.Log;import android.view.Menu;import android.view.MenuItem;import android.view.View;import android.view.View.OnLongClickListener;import android.widget.ImageButton;import android.widget.TextView;import android.widget.Toast;public class MainActivity extends Activity {public static final int SAVE = Menu.FIRST;public static final int RETURN_MENU = Menu.FIRST + 1;public static final int QUIT = Menu.FIRST + 2;@Overridepublic void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.activity_main);ImageButton btnButton=(ImageButton)this.findViewById(R.id.btn);btnButton.setOnClickListener(new MyListener());//此处长按是不起作用的//btnButton.setOnLongClickListener(new MylongClick());}@Overridepublic boolean onCreateOptionsMenu(Menu menu) {menu.add(0, SAVE, 0, "保存");menu.add(0, RETURN_MENU, 1, "返回主菜单");menu.add(0, QUIT, 2, "退出");return super.onCreateOptionsMenu(menu);}@Overridepublic boolean onOptionsItemSelected(MenuItem item) {TextView tv = (TextView) findViewById(R.id.txt);switch (item.getItemId()) {case SAVE:tv.setText("保存按钮被点击");break;case RETURN_MENU:tv.setText("返回主菜单按钮被点击");break;case QUIT:tv.setText("退出按钮被点击");break;}return super.onOptionsItemSelected(item);}private class MyListener implements View.OnClickListener {@Overridepublic void onClick(View v) {final CharSequence[] charSequences = {"aa","bb","cc"};AlertDialog.Builder builder= new AlertDialog.Builder(MainActivity.this);builder.setTitle("ok").setIcon(R.drawable.ic_launcher).setItems(charSequences, new DialogInterface.OnClickListener() {@Overridepublic void onClick(DialogInterface dialog, int which) {Toast.makeText(MainActivity.this, charSequences[which],Toast.LENGTH_SHORT).show();Log.i("abc", "i"+which);}}).show();//Dialog dia = new AlertDialog.Builder(MainActivity.this).setTitle("要干什么")//.setPositiveButton("我再想想", new DialogInterface.OnClickListener() {////@Override//public void onClick(DialogInterface dialog, int which) {//Toast.makeText(MainActivity.this, "我再想呢", 1);//}//}).setNegativeButton("要不退出吧", new DialogInterface.OnClickListener() {////@Override//public void onClick(DialogInterface dialog, int which) {//Toast.makeText(MainActivity.this, "haha", 1);//MainActivity.this.finish();//}//}).show();//}}private class MylongClick implements OnLongClickListener{@Overridepublic boolean onLongClick(View v) {Toast.makeText(MainActivity.this, "我是长按住出来的", 1);Log.i("abc", "abc");return false;}}}

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