020_01UI组件之Dialog详细用法

先上图：

点击“对话框1”，弹出如下对话框：

点击“对话框2”，弹出如下对话框：

点击“单选对话框”，弹出如下对话框：

点击“多选对话框”，弹出如下对话框：

点击“等待对话框”，弹出如下对话框：

点击“进度对话框”，弹出如下对话框：

源代码如下：

package com.example.day20_01dialogdemo;

import android.app.Activity;
import android.app.AlertDialog.Builder;
import android.app.ProgressDialog;
import android.content.DialogInterface;
import android.content.DialogInterface.OnClickListener;
import android.content.DialogInterface.OnMultiChoiceClickListener;
import android.content.Intent;
import android.net.Uri;
import android.os.Bundle;
import android.os.SystemClock;
import android.view.View;
import android.widget.Toast;

public class MainActivity extends Activity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
    }

    public void showDialog1(View v){
            
        //Dialog实现1:
/*       Builder builder =  new Builder(this) ;
       builder.setTitle("Android 培训");
       builder.setMessage("是否浏览王道论坛？");
       builder.setPositiveButton("确认", new OnClickListener() {    
        @Override
        public void onClick(DialogInterface dialog, int which) {
            // TODO Auto-generated method stub
            Intent intent = new Intent();
            intent.setAction(Intent.ACTION_VIEW);
            Uri uri =Uri.parse("http://www.cskaoyan.com/");
            intent.setData(uri);
            //定义的intent里面么有规定type
            startActivity(intent);
            
            Intent intent = new Intent(Intent.ACTION_VIEW,Uri.parse("http://www.cskaoyan.com/"));        
            startActivity(intent);
        }
        });
       builder.setNegativeButton("取消", null);
       builder.show();*/
       
       
       //Dialog实现2   
/*       Builder builder =  new Builder(this) ;
       builder.setTitle("Android 培训");
       builder.setMessage("是否浏览王道论坛？");
       builder.setPositiveButton("确认", new OnClickListener() {    
        @Override
        public void onClick(DialogInterface dialog, int which) {
            // TODO Auto-generated method stub
            Intent intent = new Intent();
            intent.setAction(Intent.ACTION_VIEW);
            Uri uri =Uri.parse("http://www.cskaoyan.com/");
            intent.setData(uri);
            //定义的intent里面么有规定type
            startActivity(intent);
            
            Intent intent = new Intent(Intent.ACTION_VIEW,Uri.parse("http://www.cskaoyan.com/"));        
            startActivity(intent);
        }
        });
       builder.setNegativeButton("取消", null);       
       Dialog dialog = builder.create();
       dialog.show();*/
           
          //Dialog实现3 Dialog 的链式调用实现   
          // Builder builder = 
             new Builder(this)  
            .setTitle("Android 培训")
            .setMessage("是否浏览王道论坛？")
            .setPositiveButton("确认", new OnClickListener() {    
            @Override
            public void onClick(DialogInterface dialog, int which) {
                // TODO Auto-generated method stub
                Intent intent = new Intent();
                intent.setAction(Intent.ACTION_VIEW);
                Uri uri =Uri.parse("http://www.cskaoyan.com/");
                intent.setData(uri);
                //定义的intent里面么有规定type
                startActivity(intent);                
                /*Intent intent = new Intent(Intent.ACTION_VIEW,Uri.parse("http://www.cskaoyan.com/"));        
                startActivity(intent);*/
            }
            })
            .setNegativeButton("取消", null)   
            .show();    
      // Toast.makeText(context, text, duration);
    }
     
    
    public void showDialog2(View v){        
         final String[] items = {"c","java" ,"c++"};        
        new Builder(this)
        .setTitle("请选择学习的内容")
        .setItems(items, new OnClickListener() {
            
            @Override
            public void onClick(DialogInterface dialog, int which) {
                // TODO Auto-generated method stub                        
                System.out
                        .println("MainActivity.showDialog2(...).new OnClickListener() {...}.onClick()"+which);                            
                String choice = items[which];            
                Toast.makeText(MainActivity.this, choice, 1).show();
            }
        })
        .show();
    }
    
    public void showDialog3(View v){        
         final String[] items = {"c","java" ,"c++"};        
        new Builder(this)
        .setTitle("请选择学习的内容")
        .setSingleChoiceItems(items, -1, new OnClickListener() {
            
            @Override
            public void onClick(DialogInterface dialog, int which) {
                // TODO Auto-generated method stub                
                dialog.cancel();
                Toast.makeText(MainActivity.this, items[which], 1).show();                        
            }
        })
        .show();
        
    }
    
    
    public void showDialog4(View v){        
        final String[] items = {"c","java" ,"c++"};         
        new Builder(this)
        .setTitle("请选择学习的内容")
          .setMultiChoiceItems(items, new boolean[]{true,false,true}, new OnMultiChoiceClickListener() {
            
            @Override
            public void onClick(DialogInterface dialog, int which, boolean isChecked) {
                // TODO Auto-generated method stub            
                 if (isChecked) {
                    Toast.makeText(MainActivity.this, items[which], 1).show();                        
                }
            }
        })
        .setPositiveButton("确定", new OnClickListener() {
            
            @Override
            public void onClick(DialogInterface dialog, int which) {
                // TODO Auto-generated method stub
                dialog.cancel();
            }
        })
        .show();        
    }
    
    public void showDialog5(View v){
        
     final  ProgressDialog dialog =    ProgressDialog.show(this, "警告", "我们正在升级系统，并不要乱按按钮。耐心等待");
      
      new Thread(new Runnable() {
        
        @Override
        public void run() {
            // TODO Auto-generated method stub
            /*try {
                Thread.sleep(2000);
            } catch (InterruptedException e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            }*/        
            SystemClock.sleep(2000);
            dialog.cancel();    
        }
     }).start();      
    }
    
    public void showDialog6(View v){
         final  ProgressDialog dialog =    new ProgressDialog(this);
         dialog.setTitle("提示");
         dialog.setMessage("我们正在下载，请耐心等待");
         dialog.setProgressStyle(ProgressDialog.STYLE_HORIZONTAL);
         dialog.setMax(100);
         
         dialog.show();
              
         new Thread(new Runnable() {        
                @Override
                public void run() {
                int i = 0;
                while(true){
                    
                    //ProgressBar 这种控件是可以在子线程里更新UI的
                    dialog.setProgress(i++);
                    SystemClock.sleep(100);
                    if (i>100) {
                        break;
                    }                    
                }
                dialog.cancel();
            
                }
             }).start();
    }    
}

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="vertical"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:paddingBottom="@dimen/activity_vertical_margin"
    android:paddingLeft="@dimen/activity_horizontal_margin"
    android:paddingRight="@dimen/activity_horizontal_margin"
    android:paddingTop="@dimen/activity_vertical_margin"
    tools:context="com.example.day20_01dialogdemo.MainActivity" >

    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="@string/hello_world" />
    
    <Button
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="对话框1" 
        android:onClick="showDialog1" />
        
    <Button
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="对话框2" 
        android:onClick="showDialog2" />
          
    <Button
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="单选对话框" 
        android:onClick="showDialog3"  />

    <Button
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="多选对话框" 
        android:onClick="showDialog4" />
                    
    <Button
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="等待对话框" 
        android:onClick="showDialog5" />
          
    <Button
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="进度对话框" 
        android:onClick="showDialog6"/>
</LinearLayout>