public abstract class

OrientationEventListener

extends Object
java.lang.Object
   ↳ android.view.OrientationEventListener

Class Overview

Helper class for receiving notifications from the SensorManager when the orientation of the device has changed.

Summary

Constants
int ORIENTATION_UNKNOWN Returned from onOrientationChanged when the device orientation cannot be determined (typically when the device is in a close to flat position).
Public Constructors
OrientationEventListener(Context context)
Creates a new OrientationEventListener.
OrientationEventListener(Context context, int rate)
Creates a new OrientationEventListener.
Public Methods
boolean canDetectOrientation()
void disable()
Disables the OrientationEventListener.
void enable()
Enables the OrientationEventListener so it will monitor the sensor and call onOrientationChanged(int) when the device orientation changes.
abstract void onOrientationChanged(int orientation)
Called when the orientation of the device has changed.
[Expand]
Inherited Methods
From class java.lang.Object

Constants

public static final int ORIENTATION_UNKNOWN

Since: API Level 3

Returned from onOrientationChanged when the device orientation cannot be determined (typically when the device is in a close to flat position).

See Also
Constant Value: -1 (0xffffffff)

Public Constructors

public OrientationEventListener (Context context)

Since: API Level 3

Creates a new OrientationEventListener.

Parameters
context for the OrientationEventListener.

public OrientationEventListener (Context context, int rate)

Since: API Level 3

Creates a new OrientationEventListener.

Parameters
context for the OrientationEventListener.
rate at which sensor events are processed (see also SensorManager). Use the default value of SENSOR_DELAY_NORMAL for simple screen orientation change detection.

Public Methods

public boolean canDetectOrientation ()

Since: API Level 3

public void disable ()

Since: API Level 3

Disables the OrientationEventListener.

public void enable ()

Since: API Level 3

Enables the OrientationEventListener so it will monitor the sensor and call onOrientationChanged(int) when the device orientation changes.

public abstract void onOrientationChanged (int orientation)

Since: API Level 3

Called when the orientation of the device has changed. orientation parameter is in degrees, ranging from 0 to 359. orientation is 0 degrees when the device is oriented in its natural position, 90 degrees when its left side is at the top, 180 degrees when it is upside down, and 270 degrees when its right side is to the top. ORIENTATION_UNKNOWN is returned when the device is close to flat and the orientation cannot be determined.

Parameters
orientation The new orientation of the device.
See Also