android通知(Notification)的使用

需要注意的几点：

1.通知的类型，一般普通的消息事件和正在进行的事件

2.通知的布局是可以自定义的

3.通知在android4.1以后，还支持一种detail的通知，（就是可扩展的）

4.通知的行为，常规的和按照堆栈顺序的

activity的配置：

<activity
            android:name="com.example.testnotification.MainActivity"
            android:label="@string/app_name" >
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
        <!-- 确保这次活动是独立的，不影响应用默认的使用范围 -->
        <activity
            android:name="com.example.testnotification.ResultActivity"
            android:excludeFromRecents="true"
            android:label="@string/title_activity_result"
            android:launchMode="singleTask"
            android:taskAffinity="" >
        </activity>
        
        <!-- 具有保持应用程序堆栈顺序的，通知 -->
        <activity
            android:name="com.example.testnotification.Result2Activity"
            android:label="@string/title_activity_result2"
            android:parentActivityName="com.example.testnotification.MainActivity" >
            <meta-data
                android:name="android.support.PARENT_ACTIVITY"
                android:value="com.example.testnotification.MainActivity" />
        </activity>

示例代码：

/**
	 * 测试发送一个普通行为的通知 通知在点击后，进入resultactivity，点击返回将直接结束
	 * 
	 * @param v
	 */
	public void onBtn1(View v) {
		// 构造通知，目前已经将直接使用构造方法的方式淘汰了
		NotificationCompat.Builder builder = new NotificationCompat.Builder(
				this);
		builder.setContentTitle("jiba");
		builder.setContentTitle("狗日傻逼");
		builder.setAutoCancel(true);
		builder.setSmallIcon(R.drawable.ic_launcher);
		// 通知的活动
		Intent notifyIntent = new Intent(this, ResultActivity.class);
		// Sets the Activity to start in a new, empty task
		notifyIntent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK
				| Intent.FLAG_ACTIVITY_CLEAR_TASK);
		// Creates the PendingIntent
		PendingIntent contentIntent = PendingIntent.getActivity(this, 0,
				notifyIntent, PendingIntent.FLAG_UPDATE_CURRENT);

		// Puts the PendingIntent into the notification builder
		builder.setContentIntent(contentIntent);

		// 最后完成通知发送
		NotificationManager mNotificationManager = (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
		mNotificationManager.notify(1, builder.build());
	}

	/**
	 * 发送保持堆栈的通知
	 * @param v
	 */
	public void onBtn2(View v) {
		Intent resultIntent = new Intent(this, Result2Activity.class);
		TaskStackBuilder stackBuilder = TaskStackBuilder.create(this);
		// Adds the back stack
		stackBuilder.addParentStack(Result2Activity.class);
		// Adds the Intent to the top of the stack
		stackBuilder.addNextIntent(resultIntent);
		// Gets a PendingIntent containing the entire back stack
		PendingIntent resultPendingIntent = stackBuilder.getPendingIntent(0,
				PendingIntent.FLAG_UPDATE_CURRENT);
		
		NotificationCompat.Builder builder = new NotificationCompat.Builder(
				this);
		builder.setContentTitle("jiba2");
		builder.setContentTitle("狗日傻逼2");
		builder.setSmallIcon(R.drawable.ic_launcher);
		builder.setAutoCancel(true);
		builder.setTicker("oh,jibalema");
		builder.setContentIntent(resultPendingIntent);

		NotificationManager mNotificationManager = (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
		mNotificationManager.notify(10, builder.build());
	}