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public
abstract
class
TriggerEventListener
extends Object
| java.lang.Object | |
| ↳ | android.hardware.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
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);
}
}
See also:
Public constructors | |
|---|---|
TriggerEventListener()
|
|
Public methods | |
|---|---|
abstract
void
|
onTrigger(TriggerEvent event)
The method that will be called when the sensor is triggered. |
Inherited methods | |
|---|---|
public TriggerEventListener ()
public abstract void onTrigger (TriggerEvent event)
The method that will be called when the sensor is triggered. Override this method in your implementation of this class.
| Parameters | |
|---|---|
event |
TriggerEvent: The details of the event. |