Android使用AlertDialog实现对话框

AlertDialog.Builder builder = new AlertDialog.Builder(this);   builder.setTitle("确认对话框");   builder.setIcon(R.drawable.icon_72);   builder.setMessage("这里是对话框内容");   builder.setPositiveButton("确定", new DialogInterface.OnClickListener() {    @Override    public void onClick(DialogInterface arg0, int arg1) {     // TODO Auto-generated method stub     Toast.makeText(AlertDialog_text.this, "点击了确定按钮", 1).show();    }   });   AlertDialog dialog = builder.create();   dialog.show(); //显示、

final String[] items = new String[]{"语文","数学","英语","物理","化学"}; //列表项   Builder alertdialog = new AlertDialog.Builder(this);    alertdialog.setTitle("你喜欢的课程").setItems(items, new DialogInterface.OnClickListener() {    @Override    public void onClick(DialogInterface dialog, int which) {     // TODO Auto-generated method stub     Toast.makeText(AlertDialog_lianxi.this, items[which], Toast.LENGTH_SHORT).show();    }   });   alertdialog.create().show();     //创建显示列表

final String[] items_fruit = new String[]{"苹果","香蕉","橘子","西瓜","梨"};   Builder alerdialog = new AlertDialog.Builder(this);   //设置列表标题   alerdialog.setTitle("你喜欢的水果");   //设置单选列表   alerdialog.setSingleChoiceItems(items_fruit, 0, new DialogInterface.OnClickListener() {    @Override    public void onClick(DialogInterface dialog, int which) {     // TODO Auto-generated method stub     Toast.makeText(AlertDialog_lianxi.this, items_fruit[which], Toast.LENGTH_SHORT).show();    }   });   //设置取消按钮并且设置响应事件   alerdialog.setNegativeButton("取消", new DialogInterface.OnClickListener() {    @Override    public void onClick(DialogInterface dialog, int which) {     // TODO Auto-generated method stub     //取消按钮响应事件    }   });   //添加确定按钮 并且设置响应事件   alerdialog.setPositiveButton("确定", new DialogInterface.OnClickListener() {      @Override    public void onClick(DialogInterface dialog, int which) {     // TODO Auto-generated method stub     //确定按钮响应事件    }   });   alerdialog.create().show();//创建显示列表

final String[] items_fruit1 = new String[]{"苹果","香蕉","橘子","西瓜","梨"}; //设置项   final boolean[] items_fruit_selected = new boolean[]{true,false,false,false,false};    Builder alerdialog1 = new AlertDialog.Builder(this);   //设置列表标题   alerdialog1.setTitle("你喜欢的水果");   //设置多选列表   alerdialog1.setMultiChoiceItems(items_fruit1, items_fruit_selected, new DialogInterface.OnMultiChoiceClickListener() {    @Override    public void onClick(DialogInterface dialog, int which, boolean isChecked) {     // TODO Auto-generated method stub     items_fruit_selected[which] = isChecked;    }   });   //设置取消按钮并且设置响应事件   alerdialog1.setNegativeButton("取消", new DialogInterface.OnClickListener() {    @Override    public void onClick(DialogInterface dialog, int which) {     // TODO Auto-generated method stub     //取消按钮响应事件    }   });   //添加确定按钮 并且设置响应事件,将选择的项显示   alerdialog1.setPositiveButton("确定", new DialogInterface.OnClickListener() {      @Override    public void onClick(DialogInterface dialog, int which) {     // TODO Auto-generated method stub     //确定按钮响应事件     StringBuilder stringBuilder = new StringBuilder();     for(int i=0;i<items_fruit_selected.length;i++)     {      if(items_fruit_selected[i] == true)      {       stringBuilder.append(items_fruit1[i]+"、");      }     }     Toast.makeText(AlertDialog_lianxi.this, stringBuilder.toString(), Toast.LENGTH_SHORT).show();    }   });   alerdialog1.create().show();//创建显示列表

<?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:gravity="center_horizontal" android:orientation="vertical" > <EditText   android:layout_width="match_parent"  android:layout_height="wrap_content"  android:editable="false"  android:text="自定义对话框"/> <TextView   android:layout_width="wrap_content"  android:layout_height="wrap_content"  android:text="这里是自定义对话框的内容"  android:textSize="20dp"  /> <Button   android:layout_width="wrap_content"  android:layout_height="wrap_content"  android:text="确定"  /></LinearLayout>layout_dialog

package com.example.demo1;import android.app.Activity;import android.app.AlertDialog;import android.content.DialogInterface;import android.os.Bundle;import android.view.LayoutInflater;import android.view.View;import android.view.View.OnClickListener;import android.widget.Button;public class MainActivity extends Activity { private Button btn_openDialog; private View view; @Override protected void onCreate(Bundle savedInstanceState) {  super.onCreate(savedInstanceState);  setContentView(R.layout.activity_main);  btn_openDialog = (Button) findViewById(R.id.id_submit);  btn_openDialog.setOnClickListener(new OnClickListener() {   @Override   public void onClick(View v) {    // TODO Auto-generated method stub    view = LayoutInflater.from(MainActivity.this).inflate(R.layout.layout_dialog, null);    AlertDialog dialog = new AlertDialog.Builder(MainActivity.this)          .setTitle("主题")          .setIcon(R.drawable.ic_launcher)          .setView(view)          .setPositiveButton("取消", new DialogInterface.OnClickListener() {          @Override          public void onClick(DialogInterface dialog, int which) {           // TODO Auto-generated method stub          }         })          .create();    dialog.show();   }  }); }}MainActivity.class