安卓对话框之-----进度对话框(ProgressDialog)

使用代码ProgressDialog.show(ProgressDialogActivity.this, "请稍等", "数据正在加载中...", true);创建并显示一个进度对话框。
调用setProgressStyle()方法设置进度对话框风格。有两种风格：
     ProgressDialog.STYLE_SPINNER 旋体进度条风格 (为默认风格)
     ProgressDialog.STYLE_HORIZONTAL 横向进度条风格

 

1、同样，我们也在布局文件中用一个按钮进行测试

 

2、引用的string.xml中的值

    lession16-dialog
    Settings
    Hello world!
    
    对话框的案例

 

3、MainActivity中的代码：

package com.example.lession16_dialog;

import android.os.Bundle;
import android.os.Handler;
import android.os.Message;
import android.app.Activity;
import android.app.AlertDialog;
import android.app.ProgressDialog;
import android.content.DialogInterface;
import android.view.Menu;
import android.view.View;
import android.widget.Toast;

public class MainActivity extends Activity {
	public Handler handler;
	private static final int MAX_PROGRESS=100;
	private static final int PRO=10;
	private int progress=10;
	private ProgressDialog progressDialog;

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

	@Override
	public boolean onCreateOptionsMenu(Menu menu) {
		// Inflate the menu; this adds items to the action bar if it is present.
		getMenuInflater().inflate(R.menu.main, menu);
		return true;
	}

	@SuppressWarnings("deprecation")
	public void openDialog(View v) {
		handler=new Handler(){
			@Override
			public void handleMessage(Message msg) {
				super.handleMessage(msg);
				switch (msg.what) {
				case PRO:
					if(progress>=MAX_PROGRESS){
						//重新设置
						progress=0;
						progressDialog.dismiss();//销毁对话框
					}else{
						progress++;
						progressDialog.incrementProgressBy(1);
						//延迟发送消息
						handler.sendEmptyMessageDelayed(PRO, 100);
					}
					break;

				default:
					break;
				}
				
			}
		};
		
		progressDialog=new ProgressDialog(this);
		progressDialog.setIcon(R.drawable.ic_launcher);
		progressDialog.setTitle("正在处理数据。。。");
		progressDialog.setMessage("请稍后。。");
		progressDialog.setProgressStyle(ProgressDialog.STYLE_HORIZONTAL);//设置进度条对话框//样式（水平，旋转）
		
		//进度最大值
		progressDialog.setMax(MAX_PROGRESS);
		progressDialog.setButton("暂停",new DialogInterface.OnClickListener() {
			
			@Override
			public void onClick(DialogInterface dialog, int which) {
				//删除消息队列
				handler.removeMessages(PRO);
				
			}
		});
		
		progressDialog.setButton2("取消",new DialogInterface.OnClickListener() {
			
			@Override
			public void onClick(DialogInterface dialog, int which) {
				//删除消息队列
				handler.removeMessages(PRO);
				//恢复进度条初始值
				progress=0;
				progressDialog.setProgress(progress);
			}
		});
		
		//显示
		progressDialog.show();
		//必须设置到show之后 
		progress=(progress>0)?progress:0;
		progressDialog.setProgress(progress);
		//线程
		handler.sendEmptyMessage(PRO);
		
	}

	public void test1() {
		new AlertDialog.Builder(this)
				.setIcon(R.drawable.ic_launcher)
				.setTitle("xxxx")
				.setMessage("是否创建文件")
				.setPositiveButton("确认", new DialogInterface.OnClickListener() {

					@Override
					public void onClick(DialogInterface dialog, int which) {
						// 创建文件
						new AlertDialog.Builder(MainActivity.this).setMessage(
								"文件已经被创建").show();
					}
				})
				.setNegativeButton("取消", new DialogInterface.OnClickListener() {

					@Override
					public void onClick(DialogInterface dialog, int which) {
						new AlertDialog.Builder(MainActivity.this)
								.setMessage("您已经选择了取消的按钮,该文件不会被创建").create()
								.show();
					}
				}).show();
	}

	public void test2() {
		// 创建对话框
		AlertDialog alertDialog = new AlertDialog.Builder(this).create();
		// 设置对话框的标题
		alertDialog.setTitle("xxxx");
		// 设置对话框的内容
		alertDialog.setMessage("消息");
		// 显示对话框
		alertDialog.show();
	}

	public void test3() {
		AlertDialog alertDialog = new AlertDialog.Builder(this)
				.setTitle("xxxx").setMessage("啊大声大声道").show();
	}

	public void test4() {
		final String items[] = { "Java", "Php", "3G", ".Net" };
		new AlertDialog.Builder(this).setTitle("简单列表对话框")
				.setItems(items, new DialogInterface.OnClickListener() {

					@Override
					public void onClick(DialogInterface dialog, int which) {
						// 第一个参数dialog int which 条目
						Toast.makeText(getApplicationContext(),
								"aaa" + items[which], Toast.LENGTH_LONG).show();

					}
				}).show();

	}
	
	public void test5(){
		final String items[]={"JAVA",".NET","3G","PHP"};
		new AlertDialog.Builder(this).setTitle("单选列表对话框")
		//数字2代表的是数组的下标
			.setSingleChoiceItems(items, 2, new DialogInterface.OnClickListener() {
				
				@Override
				public void onClick(DialogInterface dialog, int which) {
					//第一个参数 dialog   int which  那个条目
					Toast.makeText(getApplicationContext(), "xxxxx"+items[which], Toast.LENGTH_LONG).show();
					
				}
			}).show();
	}
	
	
	public void test6(){
		final String items[]={"JAVA",".NET","PHP","3G"};
		new AlertDialog.Builder(this).setTitle("多选列表对话框的简单实现")
			.setMultiChoiceItems(items, new boolean[]{false, true,true,true},new DialogInterface.OnMultiChoiceClickListener() {
				
				@Override
				public void onClick(DialogInterface dialog, int which, boolean isChecked) {
					Toast.makeText(getApplicationContext(), "sad"+items[which], Toast.LENGTH_LONG).show();
					
				}
			}).show();
	}

}

 

4、效果图：