Android为Notification加上一个进度条

package com.notification;

import Android.app.Activity;
import android.app.Notification;
import android.app.NotificationManager;
import android.app.PendingIntent;
import android.content.Intent;
import android.os.Bundle;
import android.os.Handler;
import android.os.Message;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.RemoteViews;
import android.widget.Toast;

public class nofificationActivity extends Activity implements OnClickListener {

private static final int NOTIFICATION_ID = 0x12;
private Notification notification = null;
private NotificationManager manager = null;

public Handler handler;
private int _progress = 0;
private Thread thread = null;
private boolean isStop = false;

// 当界面处理停止的状态时，设置让进度条取消
@Override
protected void onPause() {
// TODO Auto-generated method stub
isStop = false;
manager.cancel(NOTIFICATION_ID);

super.onPause();
}

/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);

Button btn = (Button) findViewById(R.id.Button01);
btn.setOnClickListener(this);
notification = new Notification(R.drawable.icon, "带进条的提醒", System
.currentTimeMillis());
notification.icon = R.drawable.icon;

// 通过RemoteViews 设置notification中View 的属性
notification.contentView = new RemoteViews(getApplication()
.getPackageName(), R.layout.custom_dialog);
notification.contentView.setProgressBar(R.id.pb, 100, 0, false);
notification.contentView.setTextViewText(R.id.tv, "进度" + _progress
+ "%");
// 通过PendingIntetn
// 设置要跳往的Activity，这里也可以设置发送一个服务或者广播，
// 不过在这里的操作都必须是用户点击notification之后才触发的
notification.contentIntent = PendingIntent.getActivity(this, 0,
new Intent(this, remoteView.class), 0);
// 获得一个NotificationManger 对象，此对象可以对notification做统一管理，只需要知道ID
manager = (NotificationManager) getSystemService(NOTIFICATION_SERVICE);

}

@Override
public void onClick(View v) {
// TODO Auto-generated method stub
isStop = true;
manager.notify(NOTIFICATION_ID, notification);
thread = new Thread(new Runnable() {

@Override
public void run() {
Thread.currentThread();
// TODO Auto-generated method stub
while (isStop) {
_progress += 10;
Message msg = handler.obtainMessage();
msg.arg1 = _progress;
msg.sendToTarget();

try {
Thread.sleep(500);
} catch (InterruptedException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
});
thread.start();

handler = new Handler() {
@Override
public void handleMessage(Message msg) {
// TODO Auto-generated method stub
notification.contentView.setProgressBar(R.id.pb, 100, msg.arg1,
false);
notification.contentView.setTextViewText(R.id.tv, "进度"
+ msg.arg1 + "%");
manager.notify(NOTIFICATION_ID, notification);

if (msg.arg1 == 100) {
_progress = 0;
manager.cancel(NOTIFICATION_ID);
isStop = false;
Toast.makeText(nofificationActivity.this, "下载完毕", 1000)
.show();
}
super.handleMessage(msg);
}
};
}
}

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