TriggerEventListener Class
Definition
Important
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This class is the listener used to handle Trigger Sensors.
[Android.Runtime.Register("android/hardware/TriggerEventListener", DoNotGenerateAcw=true)]
public abstract class TriggerEventListener : Java.Lang.Object[<Android.Runtime.Register("android/hardware/TriggerEventListener", DoNotGenerateAcw=true)>]
type TriggerEventListener = class
inherit Object- Inheritance
- Attributes
Remarks
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 android.hardware.Sensor sensors. Get an instance of SensorManager by calling android.content.Context#getSystemService(java.lang.String) 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);
}
}
Java documentation for android.hardware.TriggerEventListener.
Portions of this page are modifications based on work created and shared by the Android Open Source Project and used according to terms described in the Creative Commons 2.5 Attribution License.
Constructors
| TriggerEventListener() | |
| TriggerEventListener(IntPtr, JniHandleOwnership) |
A constructor used when creating managed representations of JNI objects; called by the runtime. |
Properties
| Class |
Returns the runtime class of this |
| Handle |
The handle to the underlying Android instance. (Inherited from Object) |
| JniIdentityHashCode | (Inherited from Object) |
| JniPeerMembers | |
| PeerReference | (Inherited from Object) |
| ThresholdClass |
This API supports the Mono for Android infrastructure and is not intended to be used directly from your code. |
| ThresholdType |
This API supports the Mono for Android infrastructure and is not intended to be used directly from your code. |
Methods
| Clone() |
Creates and returns a copy of this object. (Inherited from Object) |
| Dispose() | (Inherited from Object) |
| Dispose(Boolean) | (Inherited from Object) |
| Equals(Object) |
Indicates whether some other object is "equal to" this one. (Inherited from Object) |
| GetHashCode() |
Returns a hash code value for the object. (Inherited from Object) |
| JavaFinalize() |
Called by the garbage collector on an object when garbage collection determines that there are no more references to the object. (Inherited from Object) |
| Notify() |
Wakes up a single thread that is waiting on this object's monitor. (Inherited from Object) |
| NotifyAll() |
Wakes up all threads that are waiting on this object's monitor. (Inherited from Object) |
| OnTrigger(TriggerEvent) |
The method that will be called when the sensor is triggered. |
| SetHandle(IntPtr, JniHandleOwnership) |
Sets the Handle property. (Inherited from Object) |
| ToArray<T>() | (Inherited from Object) |
| ToString() |
Returns a string representation of the object. (Inherited from Object) |
| UnregisterFromRuntime() | (Inherited from Object) |
| Wait() |
Causes the current thread to wait until it is awakened, typically by being <em>notified</em> or <em>interrupted</em>. (Inherited from Object) |
| Wait(Int64, Int32) |
Causes the current thread to wait until it is awakened, typically by being <em>notified</em> or <em>interrupted</em>, or until a certain amount of real time has elapsed. (Inherited from Object) |
| Wait(Int64) |
Causes the current thread to wait until it is awakened, typically by being <em>notified</em> or <em>interrupted</em>, or until a certain amount of real time has elapsed. (Inherited from Object) |
Explicit Interface Implementations
| IJavaPeerable.Disposed() | (Inherited from Object) |
| IJavaPeerable.DisposeUnlessReferenced() | (Inherited from Object) |
| IJavaPeerable.Finalized() | (Inherited from Object) |
| IJavaPeerable.JniManagedPeerState | (Inherited from Object) |
| IJavaPeerable.SetJniIdentityHashCode(Int32) | (Inherited from Object) |
| IJavaPeerable.SetJniManagedPeerState(JniManagedPeerStates) | (Inherited from Object) |
| IJavaPeerable.SetPeerReference(JniObjectReference) | (Inherited from Object) |
Extension Methods
| JavaCast<TResult>(IJavaObject) |
Performs an Android runtime-checked type conversion. |
| JavaCast<TResult>(IJavaObject) | |
| GetJniTypeName(IJavaPeerable) | |