android 震动效果实现，从Settings里面读值

震动效果实现如下：

 

	if(Settings.System.getInt(getContentResolver(), Settings.System.LOCKSCREEN_SOUNDS_ENABLED, 1) != 0)
	{
		Vibrator vibrator = (Vibrator) getSystemService("vibrator");
		vibrator.vibrate(50);
	}

 

飞行模式判定：

	/**
	* judge current airplane mode is set on
	 * 
	 * @return
	 */
	private boolean isAirplanemodeOn()
	{
		return Settings.System.getInt(getContentResolver(), Settings.System.AIRPLANE_MODE_ON, 0) != 0;
	}