package com.app.threadtest;import android.app.Activity;import android.os.Bundle;import android.os.Handler;import android.view.View;import android.widget.Button;import android.widget.ProgressBar;public class MyActivity extends Activity {	//private static final int PROGRESS = 0x1;	private ProgressBar mProgress;	private Button mButton;	private int mProgressStatus = 0;	private Handler mHandler = new Handler();		protected void onCreate(Bundle icicle) {		super.onCreate(icicle);		setContentView(R.layout.progressbar_activity);		mProgress = (ProgressBar) findViewById(R.id.progress_bar);				// 按钮事件		mButton = (Button) findViewById(R.id.button1);		mButton.setOnClickListener(new View.OnClickListener() {			@Override			public void onClick(View v) {								// Start lengthy operation in a background thread				new Thread(new Runnable() {					public void run() {						while (mProgressStatus < 100) {							mProgressStatus = doWork();							// Update the progress bar							mHandler.post(new Runnable() {								public void run() {									mProgress.setProgress(mProgressStatus);								}							});						}					}				}).start();			}		});	}	protected int doWork() {		mProgressStatus++;		return mProgressStatus;	}}