android震动效果实现，从Settings里面读值

震动效果实现如下：

[java] if(Settings.System.getInt(getContentResolver(), Settings.System.LOCKSCREEN_SOUNDS_ENABLED, 1) != 0)
{
    Vibrator vibrator = (Vibrator) getSystemService("vibrator");
    vibrator.vibrate(50);
}
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：
[java] /**
* judge current airplane mode is set on
*
* @return
*/
private boolean isAirplanemodeOn()
{
    return Settings.System.getInt(getContentResolver(), Settings.System.AIRPLANE_MODE_ON, 0) != 0;
}


摘自 知识空间