ProgressDialog的使用

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
 android:layout_width="fill_parent"
 android:layout_height="fill_parent"
 android:orientation="vertical"
    >

    <TextView
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:text="@string/hello_world" />

    <Button
        android:id="@+id/Button01"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="圆形进度条"
        />
    <Button
        android:id="@+id/Button02"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="长形进度条"
        />
   
</LinearLayout>

package com.example.jindu;

import android.app.Activity;
import android.app.ProgressDialog;
import android.content.DialogInterface;
import android.os.Bundle;
import android.view.Menu;
import android.view.View;
import android.widget.Button;

public class ProgressDialogActivity extends Activity {

 private Button mButton01,mButton02;
 int m_count = 0;
 //声明进度条对话框
 ProgressDialog m_pDialog;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.progress_dialog);
       
        mButton01 = (Button)this.findViewById(R.id.Button01);
        mButton02 = (Button)this.findViewById(R.id.Button02);
        mButton01.setOnClickListener(new View.OnClickListener() {
   
   @Override
   public void onClick(View v) {
    // TODO Auto-generated method stub
    m_pDialog = new ProgressDialog(ProgressDialogActivity.this);
    m_pDialog.setProgressStyle(ProgressDialog.STYLE_SPINNER);
    m_pDialog.setTitle("提示");
    m_pDialog.setIcon(R.drawable.sun);
    //设置ProgressDialog提示信息
    m_pDialog.setMessage("这是一个圆形进度条对话框");
    //设置ProgressDialog的进度条是否不明确
    m_pDialog.setIndeterminate(false);
    //设置ProgressDialog是否可以按退回按键取消
    m_pDialog.setCancelable(true);
    //设置ProgressDialog的一个Button
    m_pDialog.setButton("确定", new DialogInterface.OnClickListener() {
     @Override
     public void onClick(DialogInterface dialog, int which) {
      // TODO Auto-generated method stub
      //点击确定按钮取消对话框
      dialog.cancel();
     }
    });
    //让ProgressDialog显示
    m_pDialog.show();
   }
  });
       
        //设置mButton02的监听事件
        mButton02.setOnClickListener(new View.OnClickListener() {
   
   @Override
   public void onClick(View v) {
    // TODO Auto-generated method stub
    m_count = 0;
    m_pDialog = new ProgressDialog(ProgressDialogActivity.this);
    m_pDialog.setProgressStyle(ProgressDialog.STYLE_HORIZONTAL);
    
    m_pDialog.setTitle("提示");
    m_pDialog.setMessage("这是一个长形对话框进度条");
    m_pDialog.setIcon(R.drawable.cloud);
    //设置进度条的长度
    m_pDialog.setProgress(100);
    m_pDialog.setIndeterminate(false);
    m_pDialog.setCancelable(true);
    m_pDialog.show();
    
    new Thread(){
     public void run(){
      try {
       
       while(m_count <= 100){
        
        m_pDialog.setProgress(m_count++);
        Thread.sleep(100);
       }
       m_pDialog.cancel();
      } catch (Exception e) {
       e.printStackTrace();
      }
     }
     
     
    }.start();
    
    
   }
  });
       
       
       
    }

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