android 入门 NotificationManager结合BroadcastReceiver 例子

package com.isoftstone.cry;

import android.app.Activity;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;

public class NotificationManagerDemo extends Activity
{
	private Button btn ;
	private static final String NM_MY_ACTION = "com.isoftstone.cry.action.NM_MY_ACTION";
	@Override
	protected void onCreate(Bundle savedInstanceState) 
	{
		// TODO Auto-generated method stub
		super.onCreate(savedInstanceState);
		setContentView(R.layout.notification_manger);
		btn = (Button)findViewById(R.id.nm_button1);
		btn.setOnClickListener(new OnClickListener() {
			@Override
			public void onClick(View v) {
				// TODO Auto-generated method stub
				Log.i("my_tag","onclick.......");
				Intent intent = new Intent();
				intent.setAction(NM_MY_ACTION);
				sendBroadcast(intent);
			}
		});
	}
}

package com.isoftstone.cry;

import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.util.Log;

public class NotificationManager_Receiver extends BroadcastReceiver 
{
	@Override
	public void onReceive(Context context, Intent intent) 
	{
		// TODO Auto-generated method stub
		Log.i("Receiver","NotificationManager_Receiver");
		Intent i = new Intent();
		//在新任务中启动activity
		i.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
		//设置intent启动组件的名称
		i.setClass(context,DisplayActivity.class);
		//启动activity显示通知
		context.startActivity(i);
	}
}

package com.isoftstone.cry;

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.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;

public class DisplayActivity extends Activity
{
	private Button cannce_btn ;
	private Notification n ;
	private NotificationManager nm ;
	private static final int ID = 1;
	
	@Override
	protected void onCreate(Bundle savedInstanceState) {
		// TODO Auto-generated method stub
		super.onCreate(savedInstanceState);
		setContentView(R.layout.notification_manger2);
		
		cannce_btn = (Button)findViewById(R.id.nm_canncel_button1);
		//获取notification实例
		nm = (NotificationManager)getSystemService(NOTIFICATION_SERVICE);
		n = new Notification();
		n.icon = R.drawable.fc;
		n.tickerText = "NotificationManager_ticker_text";
		n.when = System.currentTimeMillis();
		//实例化intent
		Intent intent = new Intent(this,NotificationManagerDemo.class);
		PendingIntent pi = PendingIntent.getActivity(this, 0, intent, 0);
		n.setLatestEventInfo(this, "myTitle", "myContent", pi);
		nm.notify(ID,n);
		cannce_btn.setOnClickListener(canncelBtnClick);
	}
	//canncelBtnClick
	private OnClickListener canncelBtnClick = new OnClickListener() {
		@Override
		public void onClick(View v) {
			// TODO Auto-generated method stub
			nm.cancel(ID);
		}
	};
}

 <activity 
            android:name=".NotificationManagerDemo">
             <intent-filter>
                <action android:name="android.intent.action.MAIN" />
                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
        
        <receiver android:name="NotificationManager_Receiver">
            <intent-filter>
                <action android:name="com.isoftstone.cry.action.NM_MY_ACTION"/>
            </intent-filter>
        </receiver>
        
        <activity android:name="DisplayActivity"></activity>