错误~~悲剧

1. ActivityMain.java

package com.lec.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.util.Log;
import android.view.View;
import android.widget.Button;
import android.widget.RemoteViews;
import android.widget.TextView;

public class ActivityMain extends Activity {
	
	TextView tv;
	Button btnShowNotification = null;
	Button btnCleanNotification = null;
	Button runningNotification = null;
	
	
	private static final int NOTIFICATION_ID = 101;
	private Notification notification = null;
	private NotificationManager notificationManager = null;
	private PendingIntent contentIntent = null;
	
	private Thread thread = null;
	private Handler handler = null;
	private int len = 0;
	
	
    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);

        //取得NotificationManager
    	notificationManager = (NotificationManager)getSystemService(NOTIFICATION_SERVICE);
    	//Notification 点击后跳转的Activity 可以是Service或者Broadcast
    	contentIntent = PendingIntent.getActivity(this, 0, new Intent(this, ActivityMain.class), 0);
    	//创建Notification 状态栏显示的，一个图标和后缀文字，
    	notification = new Notification(R.drawable.icon, "Notification coming", System.currentTimeMillis());
    	
    	//设置声音，震动，灯光的。可以用  "|=" 分别设置 DEFAULT_SOUND,DEFAULT_VIBRATE,DEFAULT_LIGHTS
    	//如果是振动或者全部，必须在AndroidManifest.xml加入振动权限 android.permission.VIBRATE
    	notification.defaults = Notification.DEFAULT_ALL;
    	
    	//指定Flag，Notification.FLAG_AUTO_CANCEL意指点击这个Notification后，立刻取消自身
    	notification.flags=Notification.FLAG_AUTO_CANCEL;
    	
    	//小图标上显示的数字
    	notification.number = 3;
    	
    	//设置下来后的显示内同
    	notification.setLatestEventInfo(this,
    			"contentTitle", 
    			"contentText", 
    			contentIntent);
    	
    	//设置下来后自定义的显示内容
    	RemoteViews contentView = new RemoteViews(getApplication().getPackageName(), R.layout.notification_view);
    	contentView.setTextViewText(R.id.notificationTitle, "Diownload");
    	contentView.setTextViewText(R.id.notificationPercent, len+"%");
    	contentView.setProgressBar(R.id.notificationProgress, 100, len, true);
    	notification.contentView = contentView;
    	notification.contentIntent = contentIntent;
    	
    	
        btnShowNotification = (Button)findViewById(R.id.mainact_btn_shownotification);
        btnShowNotification.setOnClickListener(new Button.OnClickListener() {
			
			public void onClick(View v) {
				showNotification();
			}
		});
        
        btnCleanNotification = (Button)findViewById(R.id.mainact_btn_cleannotification);
        btnCleanNotification.setOnClickListener(new Button.OnClickListener() {
			
			public void onClick(View v) {
		        cleanNotification();		
			}
		});
        
        runningNotification = (Button)findViewById(R.id.mainact_btn_runingnotification);
        runningNotification.setOnClickListener(new Button.OnClickListener() {
			
			@Override
			public void onClick(View v) {
				runningNotification();
				
			}
		});
    }
    
    @Override
    protected void onPause() {
//    	notificationManager.cancel(NOTIFICATION_ID);
    	super.onPause();
    }
    
    private void showNotification(){
    	//显示这个notification
    	notificationManager.notify(NOTIFICATION_ID, notification);
    }
    
    private void cleanNotification(){
    	notificationManager.cancel(NOTIFICATION_ID);
    }
    
    private void runningNotification(){
    	
    	notificationManager.notify(NOTIFICATION_ID, notification);
    	
    	thread = new Thread(new Runnable() {
			@Override
			public void run() {
				Thread.currentThread();
				while(len <= 100){
					
					Log.e("----len", len+"");
					
					Message msg = handler.obtainMessage(); 
					msg.arg1 = len;
					msg.sendToTarget();
					
					try {
						Thread.sleep(100);
					} catch (InterruptedException e) {
						e.printStackTrace();
					}
					
					++len;
				}
			}
		});
    	thread.start();
    	
    	handler = new Handler(){
    		@Override
    		public void handleMessage(Message msg) {
    			
    	    	notification.contentView.setProgressBar(R.id.notificationProgress, 100, msg.arg1, false);
    	    	notification.contentView.setTextViewText(R.id.notificationPercent, msg.arg1+"%");
    	    	notificationManager.notify(NOTIFICATION_ID, notification);
    	    	
    	    	if(msg.arg1 >= 100){
    	    		notificationManager.cancel(NOTIFICATION_ID);
    	    		len = 0;
    	    	}
    	    	
    			super.handleMessage(msg);
    		}
    	};
    }
}

2. main.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="vertical"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    >
<TextView  
    android:layout_width="fill_parent" 
    android:layout_height="wrap_content" 
    android:text="@string/hello"
    />
    
<Button
    android:id="@+id/mainact_btn_shownotification"
    android:layout_width="fill_parent"
    android:layout_height="wrap_content"
    android:text="show Notification"/>
    
<Button
    android:id="@+id/mainact_btn_cleannotification"
    android:layout_width="fill_parent"
    android:layout_height="wrap_content"
    android:text="clean Notification"/>
    
<Button
    android:id="@+id/mainact_btn_runingnotification"
    android:layout_width="fill_parent"
    android:layout_height="wrap_content"
    android:text="run Notification"/>
    
</LinearLayout>

3.notification_view.xml

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout
	xmlns:android="http://schemas.android.com/apk/res/android"
	android:layout_width="fill_parent"
	android:layout_height="fill_parent"
	android:padding="3dp"
>
	<ImageView android:id="@+id/notificationImage"
		android:layout_width="wrap_content" android:layout_height="wrap_content"
		android:src="@android:drawable/stat_sys_download"
	/>
	<TextView android:id="@+id/notificationTitle"
		android:layout_width="wrap_content" android:layout_height="wrap_content"
		android:layout_toRightOf="@id/notificationImage"
		android:layout_alignParentRight="true"
		android:paddingLeft="6dp"
		android:text="1111111111"/>
	<TextView android:id="@+id/notificationPercent"
		android:layout_width="wrap_content" android:layout_height="wrap_content"
		android:layout_below="@id/notificationImage"
		android:paddingTop="2dp"
		android:text="2222222222"/>
	<ProgressBar android:id="@+id/notificationProgress"
		android:layout_width="wrap_content" android:layout_height="wrap_content"
		android:layout_below="@id/notificationTitle"
		android:layout_alignLeft="@id/notificationTitle"
		android:layout_alignParentRight="true"
		android:layout_alignTop="@id/notificationPercent"
		android:paddingLeft="6dp"
		android:paddingRight="3dp"
		android:paddingTop="2dp"
		style="?android:attr/progressBarStyleHorizontal"/>
</RelativeLayout>