Android实现为Notification加上一个进度条的方法

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,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,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.send@R_362_10586@rget();
          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,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);
      }
    };
  }
}