TriggerEventListener

abstract class TriggerEventListener

This class is the listener used to handle Trigger Sensors. Trigger Sensors are sensors that trigger an event and are automatically disabled. Sensor#TYPE_SIGNIFICANT_MOTION is one such example.

SensorManager lets you access the device's sensors. Get an instance of SensorManager by calling Context.getSystemService() with the argument android.content.Context#SENSOR_SERVICE.

Here's an example setup for a TriggerEventListener:

class TriggerListener extends TriggerEventListener {
      public void onTrigger(TriggerEvent event) {
           // Do Work.
 
      // As it is a one shot sensor, it will be canceled automatically.
      // SensorManager.requestTriggerSensor(this, mSigMotion); needs to
      // be called again, if needed.
      }
  }
  public class SensorActivity extends Activity {
      private final SensorManager mSensorManager;
      private final Sensor mSigMotion;
      private final TriggerEventListener mListener = new TriggerEventListener();
 
      public SensorActivity() {
          mSensorManager = (SensorManager)getSystemService(SENSOR_SERVICE);
          mSigMotion = mSensorManager.getDefaultSensor(Sensor.TYPE_SIGNIFICANT_MOTION);
      }
 
      protected void onResume() {
          super.onResume();
          mSensorManager.requestTriggerSensor(mListener, mSigMotion);
      }
 
      protected void onPause() {
          super.onPause();
          // Call disable to ensure that the trigger request has been canceled.
          mSensorManager.cancelTriggerSensor(mListener, mSigMotion);
      }
 
  }
  

Summary

Public constructors

TriggerEventListener()

Public methods

abstract fun onTrigger(event: TriggerEvent!): Unit