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/*
* Copyright (C) 2008 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package android.view;
import android.content.Context;
import android.hardware.SensorListener;
/**
* Helper class for receiving notifications from the SensorManager when
* the orientation of the device has changed.
* @deprecated use {@link android.view.OrientationEventListener} instead.
* This class internally uses the OrientationEventListener.
*/
@Deprecated
public abstract class OrientationListener implements SensorListener {
private OrientationEventListener mOrientationEventLis;
/**
* Returned from onOrientationChanged when the device orientation cannot be determined
* (typically when the device is in a close to flat position).
*
* @see #onOrientationChanged
*/
public static final int ORIENTATION_UNKNOWN = OrientationEventListener.ORIENTATION_UNKNOWN;
/**
* Creates a new OrientationListener.
*
* @param context for the OrientationListener.
*/
public OrientationListener(Context context) {
mOrientationEventLis = new OrientationEventListenerInternal(context);
}
/**
* Creates a new OrientationListener.
*
* @param context for the OrientationListener.
* @param rate at which sensor events are processed (see also
* {@link android.hardware.SensorManager SensorManager}). Use the default
* value of {@link android.hardware.SensorManager#SENSOR_DELAY_NORMAL
* SENSOR_DELAY_NORMAL} for simple screen orientation change detection.
*/
public OrientationListener(Context context, int rate) {
mOrientationEventLis = new OrientationEventListenerInternal(context, rate);
}
class OrientationEventListenerInternal extends OrientationEventListener {
OrientationEventListenerInternal(Context context) {
super(context);
}
OrientationEventListenerInternal(Context context, int rate) {
super(context, rate);
// register so that onSensorChanged gets invoked
registerListener(OrientationListener.this);
}
public void onOrientationChanged(int orientation) {
OrientationListener.this.onOrientationChanged(orientation);
}
}
/**
* Enables the OrientationListener so it will monitor the sensor and call
* {@link #onOrientationChanged} when the device orientation changes.
*/
public void enable() {
mOrientationEventLis.enable();
}
/**
* Disables the OrientationListener.
*/
public void disable() {
mOrientationEventLis.disable();
}
public void onAccuracyChanged(int sensor, int accuracy) {
}
public void onSensorChanged(int sensor, float[] values) {
// just ignore the call here onOrientationChanged is invoked anyway
}
/**
* Look at {@link android.view.OrientationEventListener#onOrientationChanged}
* for method description and usage
* @param orientation The new orientation of the device.
*
* @see #ORIENTATION_UNKNOWN
*/
abstract public void onOrientationChanged(int orientation);
}
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