十秒钟更新完ProgressBar

//注意：
//在xml文件中
//style="@android:style/Widget.ProgressBar.Horizontal"采用系统自带的样式

1 main.xml文件如下
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:orientation="vertical" >   
    <ProgressBar 
        android:id="@+id/progressBar"
        android:layout_width="wrap_content"
        android:layout_height="30dip"
        android:visibility="visible"
        style="@android:style/Widget.ProgressBar.Horizontal"
    />
</LinearLayout>

2 Activity如下
package cn.com;
import android.app.Activity;
import android.os.Bundle;
import android.widget.ProgressBar;
public class TestProgressBarActivity extends Activity {
	private ProgressBar progressBar = null;
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.main);
		progressBar = (ProgressBar) findViewById(R.id.progressBar);	// 从这到下是关键
		Thread thread = new Thread(new Runnable() {
			@Override
			public void run() {
				int progressBarMax = progressBar.getMax();//得到progressBar的最大刻度
				try {
					while (progressBarMax != progressBar.getProgress()) {
						int everyProgress = progressBarMax / 10;//progressBar的最大刻度细分为十份
						int currentprogress = progressBar.getProgress();//得到当前刻度
						progressBar.setProgress(currentprogress + everyProgress);//设置更新后的刻度
						Thread.sleep(1000);//线程睡眠一秒
					}
				} catch (InterruptedException e) {
					e.printStackTrace();
				}
			}
		});
		thread.start();	//开启线程.关键结束
	}
}