数字第二次少于100次

i am using the orientation sensor in the android app. I want to find out when the sensor value goes less than 100 second time. how to find it.

我在Android应用程序中使用方向传感器。我想知道传感器值何时小于100秒。怎么找到它。

        public void onSensorChanged(SensorEvent event) {
        // TODO Auto-generated method stub
          if( event.sensor.getType() == Sensor.TYPE_ORIENTATION)
             {
              value= (event.values[0]);


     if (value<100){

        }
          }}

1 个解决方案

#1

You can just keep of track of it in a class variable. I'm assuming that you just want to detect it going under 100 twice at any time, not twice consecutively.

您可以在类变量中跟踪它。我假设您只想在任何时间检测到它低于100,而不是连续两次。

public void onSensorChanged(SensorEvent event) {

    if( event.sensor.getType() == Sensor.TYPE_ORIENTATION)
    {
         value= (event.values[0]);


        if (value<100){
           if (!lessThanBefore) //first time it is less than 100, mark 
           {
               lessThanBefore= true;
           }
           else
           {
                //CONDITION DETECTED...
           }
        }

      }}