android定时唤醒_消息通知

1.定时唤醒

在使用service进行后台长时间工作时，cpu或网络在休眠或深度睡眠的情况下不能正常工作

通过alarm进行定时的开启服务

代码片段

	private void startTicker() {
		if (mPendingIntent == null) {
			mPendingIntent = PendingIntent.getService(this, 0, new Intent(
					"com.action.ticker"), 0);
		}
		if (mAlarmManager == null) {
			mAlarmManager = (AlarmManager) getSystemService(ALARM_SERVICE);
		}
		mAlarmManager.cancel(mPendingIntent);
		mAlarmManager.setRepeating(AlarmManager.RTC_WAKEUP,
				System.currentTimeMillis(), 2 * 60000, mPendingIntent);
	}

	private void stopTicker() {
		if (mPendingIntent == null) {
			mPendingIntent = PendingIntent.getService(this, 0, new Intent(
					"com.action.ticker"), 0);
		}
		if (mAlarmManager == null) {
			mAlarmManager = (AlarmManager) getSystemService(ALARM_SERVICE);
		}
		mAlarmManager.cancel(mPendingIntent);
	}

2.消息通知
在有新消息时，通常会进行系统标题栏的消息通知，在点击通知后进入应用的对应界面

代码片段

	private void startTicker() {
		if (mPendingIntent == null) {
			mPendingIntent = PendingIntent.getService(this, 0, new Intent(
					"com.yqfz.bus.ticker"), 0);
		}
		if (mAlarmManager == null) {
			mAlarmManager = (AlarmManager) getSystemService(ALARM_SERVICE);
		}
		mAlarmManager.cancel(mPendingIntent);
		mAlarmManager.setRepeating(AlarmManager.RTC_WAKEUP,
				System.currentTimeMillis(), 2 * 60000, mPendingIntent);
	}

	private void stopTicker() {
		if (mPendingIntent == null) {
			mPendingIntent = PendingIntent.getService(this, 0, new Intent(
					"com.yqfz.bus.ticker"), 0);
		}
		if (mAlarmManager == null) {
			mAlarmManager = (AlarmManager) getSystemService(ALARM_SERVICE);
		}
		mAlarmManager.cancel(mPendingIntent);
	}