/*******************************************************************************
* Copyright 2011 See AUTHORS file.
*
* 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 com.badlogic.gdx.backends.android;
import java.util.ArrayList;
import java.util.Arrays;
import android.app.Activity;
import android.app.AlertDialog;
import android.content.Context;
import android.content.DialogInterface;
import android.content.DialogInterface.OnCancelListener;
import android.hardware.Sensor;
import android.hardware.SensorEvent;
import android.hardware.SensorEventListener;
import android.hardware.SensorManager;
import android.os.Build;
import android.os.Handler;
import android.os.Vibrator;
import android.service.wallpaper.WallpaperService.Engine;
import android.view.MotionEvent;
import android.view.Surface;
import android.view.View;
import android.view.WindowManager;
import android.view.View.OnKeyListener;
import android.view.View.OnTouchListener;
import android.view.inputmethod.InputMethodManager;
import android.widget.EditText;
import com.badlogic.gdx.Application;
import com.badlogic.gdx.Gdx;
import com.badlogic.gdx.Graphics.DisplayMode;
import com.badlogic.gdx.Input;
import com.badlogic.gdx.Input.TextInputListener;
import com.badlogic.gdx.InputProcessor;
import com.badlogic.gdx.backends.android.AndroidLiveWallpaperService.AndroidWallpaperEngine;
import com.badlogic.gdx.utils.IntSet;
import com.badlogic.gdx.utils.Pool;
/** An implementation of the {@link Input} interface for Android.
*
* @author mzechner */
/** @author jshapcot */
public class AndroidInput implements Input, OnKeyListener, OnTouchListener {
static class KeyEvent {
static final int KEY_DOWN = 0;
static final int KEY_UP = 1;
static final int KEY_TYPED = 2;
long timeStamp;
int type;
int keyCode;
char keyChar;
}
static class TouchEvent {
static final int TOUCH_DOWN = 0;
static final int TOUCH_UP = 1;
static final int TOUCH_DRAGGED = 2;
static final int TOUCH_SCROLLED = 3;
static final int TOUCH_MOVED = 4;
long timeStamp;
int type;
int x;
int y;
int scrollAmount;
int button;
int pointer;
}
Pool<KeyEvent> usedKeyEvents = new Pool<KeyEvent>(16, 1000) {
protected KeyEvent newObject () {
return new KeyEvent();
}
};
Pool<TouchEvent> usedTouchEvents = new Pool<TouchEvent>(16, 1000) {
protected TouchEvent newObject () {
return new TouchEvent();
}
};
public static final int NUM_TOUCHES = 20;
public static final int SUPPORTED_KEYS = 260;
ArrayList<OnKeyListener> keyListeners = new ArrayList();
ArrayList<KeyEvent> keyEvents = new ArrayList();
ArrayList<TouchEvent> touchEvents = new ArrayList();
int[] touchX = new int[NUM_TOUCHES];
int[] touchY = new int[NUM_TOUCHES];
int[] deltaX = new int[NUM_TOUCHES];
int[] deltaY = new int[NUM_TOUCHES];
boolean[] touched = new boolean[NUM_TOUCHES];
int[] button = new int[NUM_TOUCHES];
int[] realId = new int[NUM_TOUCHES];
final boolean hasMultitouch;
private int keyCount = 0;
private boolean[] keys = new boolean[SUPPORTED_KEYS];
private boolean keyJustPressed = false;
private boolean[] justPressedKeys = new boolean[SUPPORTED_KEYS];
private SensorManager manager;
public boolean accelerometerAvailable = false;
private final float[] accelerometerValues = new float[3];
public boolean gyroscopeAvailable = false;
private final float[] gyroscopeValues = new float[3];
private String text = null;
private TextInputListener textListener = null;
private Handler handle;
final Application app;
final Context context;
private final AndroidTouchHandler touchHandler;
private int sleepTime = 0;
private boolean catchBack = false;
private boolean catchMenu = false;
protected final Vibrator vibrator;
private boolean compassAvailable = false;
boolean keyboardAvailable;
private final float[] magneticFieldValues = new float[3];
private float azimuth = 0;
private float pitch = 0;
private float roll = 0;
private float inclination = 0;
private boolean justTouched = false;
private InputProcessor processor;
private final AndroidApplicationConfiguration config;
private final Orientation nativeOrientation;
private long currentEventTimeStamp = System.nanoTime();
private final AndroidOnscreenKeyboard onscreenKeyboard;
private SensorEventListener accelerometerListener;
private SensorEventListener gyroscopeListener;
private SensorEventListener compassListener;
public AndroidInput (Application activity, Context context, Object view, AndroidApplicationConfiguration config) {
// we hook into View, for LWPs we call onTouch below directly from
// within the AndroidLivewallpaperEngine#onTouchEvent() method.
if (view instanceof View) {
View v = (View)view;
v.setOnKeyListener(this);
v.setOnTouchListener(this);
v.setFocusable(true);
v.setFocusableInTouchMode(true);
v.requestFocus();
}
this.config = config;
this.onscreenKeyboard = new AndroidOnscreenKeyboard(context, new Handler(), this);
for (int i = 0; i < realId.length; i++)
realId[i] = -1;
handle = new Handler();
this.app = activity;
this.context = context;
this.sleepTime = config.touchSleepTime;
touchHandler = new AndroidMultiTouchHandler();
hasMultitouch = touchHandler.supportsMultitouch(context);
vibrator = (Vibrator)context.getSystemService(Context.VIBRATOR_SERVICE);
int rotation = getRotation();
DisplayMode mode = app.getGraphics().getDisplayMode();
if (((rotation == 0 || rotation == 180) && (mode.width >= mode.height))
|| ((rotation == 90 || rotation == 270) && (mode.width <= mode.height))) {
nativeOrientation = Orientation.Landscape;
} else {
nativeOrientation = Orientation.Portrait;
}
}
@Override
public float getAccelerometerX () {
return accelerometerValues[0];
}
@Override
public float getAccelerometerY () {
return accelerometerValues[1];
}
@Override
public float getAccelerometerZ () {
return accelerometerValues[2];
}
@Override
public float getGyroscopeX () {
return gyroscopeValues[0];
}
@Override
public float getGyroscopeY () {
return gyroscopeValues[1];
}
@Override
public float getGyroscopeZ () {
return gyroscopeValues[2];
}
@Override
public void getTextInput (final TextInputListener listener, final String title, final String text, final String hint) {
handle.post(new Runnable() {
public void run () {
AlertDialog.Builder alert = new AlertDialog.Builder(context);
alert.setTitle(title);
final EditText input = new EditText(context);
input.setHint(hint);
input.setText(text);
input.setSingleLine();
alert.setView(input);
alert.setPositiveButton(context.getString(android.R.string.ok), new DialogInterface.OnClickListener() {
public void onClick (DialogInterface dialog, int whichButton) {
Gdx.app.postRunnable(new Runnable() {
@Override
public void run () {
listener.input(input.getText().toString());
}
});
}
});
alert.setNegativeButton(context.getString(android.R.string.cancel), new DialogInterface.OnClickListener() {
public void onClick (DialogInterface dialog, int whichButton) {
Gdx.app.postRunnable(new Runnable() {
@Override
public void run () {
listener.canceled();
}
});
}
});
alert.setOnCancelListener(new OnCancelListener() {
@Override
public void onCancel (DialogInterface arg0) {
Gdx.app.postRunnable(new Runnable() {
@Override
public void run () {
listener.canceled();
}
});
}
});
alert.show();
}
});
}
@Override
public int getX () {
synchronized (this) {
return touchX[0];
}
}
@Override
public int getY () {
synchronized (this) {
return touchY[0];
}
}
@Override
public int getX (int pointer) {
synchronized (this) {
return touchX[pointer];
}
}
@Override
public int getY (int pointer) {
synchronized (this) {
return touchY[pointer];
}
}
public boolean isTouched (int pointer) {
synchronized (this) {
return touched[pointer];
}
}
@Override
public synchronized boolean isKeyPressed (int key) {
if (key == Input.Keys.ANY_KEY) {
return keyCount > 0;
}
if (key < 0 || key >= SUPPORTED_KEYS) {
return false;
}
return keys[key];
}
@Override
public synchronized boolean isKeyJustPressed (int key) {
if (key == Input.Keys.ANY_KEY) {
return keyJustPressed;
}
if (key < 0 || key >= SUPPORTED_KEYS) {
return false;
}
return justPressedKeys[key];
}
@Override
public boolean isTouched () {
synchronized (this) {
if (hasMultitouch) {
for (int pointer = 0; pointer < NUM_TOUCHES; pointer++) {
if (touched[pointer]) {
return true;
}
}
}
return touched[0];
}
}
public void setInputProcessor (InputProcessor processor) {
synchronized (this) {
this.processor = processor;
}
}
void processEvents () {
synchronized (this) {
justTouched = false;
if (keyJustPressed) {
keyJustPressed = false;
for (int i = 0; i < justPressedKeys.length; i++) {
justPressedKeys[i] = false;
}
}
if (processor != null) {
final InputProcessor processor = this.processor;
int len = keyEvents.size();
for (int i = 0; i < len; i++) {
KeyEvent e = keyEvents.get(i);
currentEventTimeStamp = e.timeStamp;
switch (e.type) {
case KeyEvent.KEY_DOWN:
processor.keyDown(e.keyCode);
keyJustPressed = true;
justPressedKeys[e.keyCode] = true;
break;
case KeyEvent.KEY_UP:
processor.keyUp(e.keyCode);
break;
case KeyEvent.KEY_TYPED:
processor.keyTyped(e.keyChar);
}
usedKeyEvents.free(e);
}
len = touchEvents.size();
for (int i = 0; i < len; i++) {
TouchEvent e = touchEvents.get(i);
currentEventTimeStamp = e.timeStamp;
switch (e.type) {
case TouchEvent.TOUCH_DOWN:
processor.touchDown(e.x, e.y, e.pointer, e.button);
justTouched = true;
break;
case TouchEvent.TOUCH_UP:
processor.touchUp(e.x, e.y, e.pointer, e.button);
break;
case TouchEvent.TOUCH_DRAGGED:
processor.touchDragged(e.x, e.y, e.pointer);
break;
case TouchEvent.TOUCH_MOVED:
processor.mouseMoved(e.x, e.y);
break;
case TouchEvent.TOUCH_SCROLLED:
processor.scrolled(e.scrollAmount);
}
usedTouchEvents.free(e);
}
} else {
int len = touchEvents.size();
for (int i = 0; i < len; i++) {
TouchEvent e = touchEvents.get(i);
if (e.type == TouchEvent.TOUCH_DOWN) justTouched = true;
usedTouchEvents.free(e);
}
len = keyEvents.size();
for (int i = 0; i < len; i++) {
usedKeyEvents.free(keyEvents.get(i));
}
}
if (touchEvents.size() == 0) {
for (int i = 0; i < deltaX.length; i++) {
deltaX[0] = 0;
deltaY[0] = 0;
}
}
keyEvents.clear();
touchEvents.clear();
}
}
boolean requestFocus = true;
@Override
public boolean onTouch (View view, MotionEvent event) {
if (requestFocus && view != null) {
view.setFocusableInTouchMode(true);
view.requestFocus();
requestFocus = false;
}
// synchronized in handler.postTouchEvent()
touchHandler.onTouch(event, this);
if (sleepTime != 0) {
try {
Thread.sleep(sleepTime);
} catch (InterruptedException e) {
}
}
return true;
}
/** Called in {@link AndroidLiveWallpaperService} on tap
* @param x
* @param y */
public void onTap (int x, int y) {
postTap(x, y);
}
/** Called in {@link AndroidLiveWallpaperService} on drop
* @param x
* @param y */
public void onDrop (int x, int y) {
postTap(x, y);
}
protected void postTap (int x, int y) {
synchronized (this) {
TouchEvent event = usedTouchEvents.obtain();
event.timeStamp = System.nanoTime();
event.pointer = 0;
event.x = x;
event.y = y;
event.type = TouchEvent.TOUCH_DOWN;
touchEvents.add(event);
event = usedTouchEvents.obtain();
event.timeStamp = System.nanoTime();
event.pointer = 0;
event.x = x;
event.y = y;
event.type = TouchEvent.TOUCH_UP;
touchEvents.add(event);
}
Gdx.app.getGraphics().requestRendering();
}
@Override
public boolean onKey (View v, int keyCode, android.view.KeyEvent e) {
for (int i = 0, n = keyListeners.size(); i < n; i++)
if (keyListeners.get(i).onKey(v, keyCode, e)) return true;
synchronized (this) {
KeyEvent event = null;
if (e.getKeyCode() == android.view.KeyEvent.KEYCODE_UNKNOWN && e.getAction() == android.view.KeyEvent.ACTION_MULTIPLE) {
String chars = e.getCharacters();
for (int i = 0; i < chars.length(); i++) {
event = usedKeyEvents.obtain();
event.timeStamp = System.nanoTime();
event.keyCode = 0;
event.keyChar = chars.charAt(i);
event.type = KeyEvent.KEY_TYPED;
keyEvents.add(event);
}
return false;
}
char character = (char)e.getUnicodeChar();
// Android doesn't report a unicode char for back space. hrm...
if (keyCode == 67) character = '\b';
if (e.getKeyCode() < 0 || e.getKeyCode() >= SUPPORTED_KEYS) {
return false;
}
switch (e.getAction()) {
case android.view.KeyEvent.ACTION_DOWN:
event = usedKeyEvents.obtain();
event.timeStamp = System.nanoTime();
event.keyChar = 0;
event.keyCode = e.getKeyCode();
event.type = KeyEvent.KEY_DOWN;
// Xperia hack for circle key. gah...
if (keyCode == android.view.KeyEvent.KEYCODE_BACK && e.isAltPressed()) {
keyCode = Keys.BUTTON_CIRCLE;
event.keyCode = keyCode;
}
keyEvents.add(event);
if (!keys[event.keyCode]) {
keyCount++;
keys[event.keyCode] = true;
}
break;
case android.view.KeyEvent.ACTION_UP:
long timeStamp = System.nanoTime();
event = usedKeyEvents.obtain();
event.timeStamp = timeStamp;
event.keyChar = 0;
event.keyCode = e.getKeyCode();
event.type = KeyEvent.KEY_UP;
// Xperia hack for circle key. gah...
if (keyCode == android.view.KeyEvent.KEYCODE_BACK && e.isAltPressed()) {
keyCode = Keys.BUTTON_CIRCLE;
event.keyCode = keyCode;
}
keyEvents.add(event);
event = usedKeyEvents.obtain();
event.timeStamp = timeStamp;
event.keyChar = character;
event.keyCode = 0;
event.type = KeyEvent.KEY_TYPED;
keyEvents.add(event);
if (keyCode == Keys.BUTTON_CIRCLE) {
if (keys[Keys.BUTTON_CIRCLE]) {
keyCount--;
keys[Keys.BUTTON_CIRCLE] = false;
}
} else {
if (keys[e.getKeyCode()]) {
keyCount--;
keys[e.getKeyCode()] = false;
}
}
}
app.getGraphics().requestRendering();
}
// circle button on Xperia Play shouldn't need catchBack == true
if (keyCode == Keys.BUTTON_CIRCLE) return true;
if (catchBack && keyCode == android.view.KeyEvent.KEYCODE_BACK) return true;
if (catchMenu && keyCode == android.view.KeyEvent.KEYCODE_MENU) return true;
return false;
}
@Override
public void setOnscreenKeyboardVisible (final boolean visible) {
handle.post(new Runnable() {
public void run () {
InputMethodManager manager = (InputMethodManager)context.getSystemService(Context.INPUT_METHOD_SERVICE);
if (visible) {
View view = ((AndroidGraphics)app.getGraphics()).getView();
view.setFocusable(true);
view.setFocusableInTouchMode(true);
manager.showSoftInput(((AndroidGraphics)app.getGraphics()).getView(), 0);
} else {
manager.hideSoftInputFromWindow(((AndroidGraphics)app.getGraphics()).getView().getWindowToken(), 0);
}
}
});
}
@Override
public void setCatchBackKey (boolean catchBack) {
this.catchBack = catchBack;
}
@Override
public boolean isCatchBackKey() {
return catchBack;
}
@Override
public void setCatchMenuKey (boolean catchMenu) {
this.catchMenu = catchMenu;
}
@Override
public boolean isCatchMenuKey () {
return catchMenu;
}
@Override
public void vibrate (int milliseconds) {
vibrator.vibrate(milliseconds);
}
@Override
public void vibrate (long[] pattern, int repeat) {
vibrator.vibrate(pattern, repeat);
}
@Override
public void cancelVibrate () {
vibrator.cancel();
}
@Override
public boolean justTouched () {
return justTouched;
}
@Override
public boolean isButtonPressed (int button) {
synchronized (this) {
if (hasMultitouch) {
for (int pointer = 0; pointer < NUM_TOUCHES; pointer++) {
if (touched[pointer] && (this.button[pointer] == button)) {
return true;
}
}
}
return (touched[0] && (this.button[0] == button));
}
}
final float[] R = new float[9];
final float[] orientation = new float[3];
private void updateOrientation () {
if (SensorManager.getRotationMatrix(R, null, accelerometerValues, magneticFieldValues)) {
SensorManager.getOrientation(R, orientation);
azimuth = (float)Math.toDegrees(orientation[0]);
pitch = (float)Math.toDegrees(orientation[1]);
roll = (float)Math.toDegrees(orientation[2]);
}
}
/** Returns the rotation matrix describing the devices rotation as per <a href=
* "http://developer.android.com/reference/android/hardware/SensorManager.html#getRotationMatrix(float[], float[], float[], float[])"
* >SensorManager#getRotationMatrix(float[], float[], float[], float[])</a>. Does not manipulate the matrix if the platform
* does not have an accelerometer.
* @param matrix */
public void getRotationMatrix (float[] matrix) {
SensorManager.getRotationMatrix(matrix, null, accelerometerValues, magneticFieldValues);
}
@Override
public float getAzimuth () {
if (!compassAvailable) return 0;
updateOrientation();
return azimuth;
}
@Override
public float getPitch () {
if (!compassAvailable) return 0;
updateOrientation();
return pitch;
}
@Override
public float getRoll () {
if (!compassAvailable) return 0;
updateOrientation();
return roll;
}
void registerSensorListeners () {
if (config.useAccelerometer) {
manager = (SensorManager)context.getSystemService(Context.SENSOR_SERVICE);
if (manager.getSensorList(Sensor.TYPE_ACCELEROMETER).size() == 0) {
accelerometerAvailable = false;
} else {
Sensor accelerometer = manager.getSensorList(Sensor.TYPE_ACCELEROMETER).get(0);
accelerometerListener = new SensorListener(this.nativeOrientation, this.accelerometerValues, this.magneticFieldValues, this.gyroscopeValues);
accelerometerAvailable = manager.registerListener(accelerometerListener, accelerometer,
SensorManager.SENSOR_DELAY_GAME);
}
} else
accelerometerAvailable = false;
if (config.useGyroscope) {
manager = (SensorManager)context.getSystemService(Context.SENSOR_SERVICE);
if (manager.getSensorList(Sensor.TYPE_GYROSCOPE).size() == 0) {
gyroscopeAvailable = false;
} else {
Sensor gyroscope = manager.getSensorList(Sensor.TYPE_GYROSCOPE).get(0);
gyroscopeListener = new SensorListener(this.nativeOrientation, this.gyroscopeValues, this.magneticFieldValues, this.gyroscopeValues);
gyroscopeAvailable = manager.registerListener(gyroscopeListener, gyroscope,
SensorManager.SENSOR_DELAY_GAME);
}
} else
gyroscopeAvailable = false;
if (config.useCompass) {
if (manager == null) manager = (SensorManager)context.getSystemService(Context.SENSOR_SERVICE);
Sensor sensor = manager.getDefaultSensor(Sensor.TYPE_MAGNETIC_FIELD);
if (sensor != null) {
compassAvailable = accelerometerAvailable;
if (compassAvailable) {
compassListener = new SensorListener(this.nativeOrientation, this.accelerometerValues, this.magneticFieldValues, this.gyroscopeValues);
compassAvailable = manager.registerListener(compassListener, sensor, SensorManager.SENSOR_DELAY_GAME);
}
} else {
compassAvailable = false;
}
} else
compassAvailable = false;
Gdx.app.log("AndroidInput", "sensor listener setup");
}
void unregisterSensorListeners () {
if (manager != null) {
if (accelerometerListener != null) {
manager.unregisterListener(accelerometerListener);
accelerometerListener = null;
}
if (gyroscopeListener != null) {
manager.unregisterListener(gyroscopeListener);
gyroscopeListener = null;
}
if (compassListener != null) {
manager.unregisterListener(compassListener);
compassListener = null;
}
manager = null;
}
Gdx.app.log("AndroidInput", "sensor listener tear down");
}
@Override
public InputProcessor getInputProcessor () {
return this.processor;
}
@Override
public boolean isPeripheralAvailable (Peripheral peripheral) {
if (peripheral == Peripheral.Accelerometer) return accelerometerAvailable;
if (peripheral == Peripheral.Gyroscope) return gyroscopeAvailable;
if (peripheral == Peripheral.Compass) return compassAvailable;
if (peripheral == Peripheral.HardwareKeyboard) return keyboardAvailable;
if (peripheral == Peripheral.OnscreenKeyboard) return true;
if (peripheral == Peripheral.Vibrator)
return (Build.VERSION.SDK_INT >= 11 && vibrator != null) ? vibrator.hasVibrator() : vibrator != null;
if (peripheral == Peripheral.MultitouchScreen) return hasMultitouch;
return false;
}
public int getFreePointerIndex () {
int len = realId.length;
for (int i = 0; i < len; i++) {
if (realId[i] == -1) return i;
}
realId = resize(realId);
touchX = resize(touchX);
touchY = resize(touchY);
deltaX = resize(deltaX);
deltaY = resize(deltaY);
touched = resize(touched);
button = resize(button);
return len;
}
private int[] resize (int[] orig) {
int[] tmp = new int[orig.length + 2];
System.arraycopy(orig, 0, tmp, 0, orig.length);
return tmp;
}
private boolean[] resize (boolean[] orig) {
boolean[] tmp = new boolean[orig.length + 2];
System.arraycopy(orig, 0, tmp, 0, orig.length);
return tmp;
}
public int lookUpPointerIndex (int pointerId) {
int len = realId.length;
for (int i = 0; i < len; i++) {
if (realId[i] == pointerId) return i;
}
StringBuffer buf = new StringBuffer();
for (int i = 0; i < len; i++) {
buf.append(i + ":" + realId[i] + " ");
}
Gdx.app.log("AndroidInput", "Pointer ID lookup failed: " + pointerId + ", " + buf.toString());
return -1;
}
@Override
public int getRotation () {
int orientation = 0;
if (context instanceof Activity) {
orientation = ((Activity)context).getWindowManager().getDefaultDisplay().getRotation();
} else {
orientation = ((WindowManager)context.getSystemService(Context.WINDOW_SERVICE)).getDefaultDisplay().getRotation();
}
switch (orientation) {
case Surface.ROTATION_0:
return 0;
case Surface.ROTATION_90:
return 90;
case Surface.ROTATION_180:
return 180;
case Surface.ROTATION_270:
return 270;
default:
return 0;
}
}
@Override
public Orientation getNativeOrientation () {
return nativeOrientation;
}
@Override
public void setCursorCatched (boolean catched) {
}
@Override
public boolean isCursorCatched () {
return false;
}
@Override
public int getDeltaX () {
return deltaX[0];
}
@Override
public int getDeltaX (int pointer) {
return deltaX[pointer];
}
@Override
public int getDeltaY () {
return deltaY[0];
}
@Override
public int getDeltaY (int pointer) {
return deltaY[pointer];
}
@Override
public void setCursorPosition (int x, int y) {
}
@Override
public long getCurrentEventTime () {
return currentEventTimeStamp;
}
public void addKeyListener (OnKeyListener listener) {
keyListeners.add(listener);
}
public void onPause () {
unregisterSensorListeners();
// erase pointer ids. this sucks donkeyballs...
Arrays.fill(realId, -1);
// erase touched state. this also sucks donkeyballs...
Arrays.fill(touched, false);
}
public void onResume () {
registerSensorListeners();
}
/** Our implementation of SensorEventListener. Because Android doesn't like it when we register more than one Sensor to a single
* SensorEventListener, we add one of these for each Sensor. Could use an anonymous class, but I don't see any harm in
* explicitly defining it here. Correct me if I am wrong. */
private class SensorListener implements SensorEventListener {
final float[] accelerometerValues;
final float[] magneticFieldValues;
final Orientation nativeOrientation;
final float[] gyroscopeValues;
SensorListener (Orientation nativeOrientation, float[] accelerometerValues, float[] magneticFieldValues, float[] gyroscopeValues) {
this.accelerometerValues = accelerometerValues;
this.magneticFieldValues = magneticFieldValues;
this.nativeOrientation = nativeOrientation;
this.gyroscopeValues = gyroscopeValues;
}
@Override
public void onAccuracyChanged (Sensor arg0, int arg1) {
}
@Override
public void onSensorChanged (SensorEvent event) {
if (event.sensor.getType() == Sensor.TYPE_ACCELEROMETER) {
if (nativeOrientation == Orientation.Portrait) {
System.arraycopy(event.values, 0, accelerometerValues, 0, accelerometerValues.length);
} else {
accelerometerValues[0] = event.values[1];
accelerometerValues[1] = -event.values[0];
accelerometerValues[2] = event.values[2];
}
}
if (event.sensor.getType() == Sensor.TYPE_MAGNETIC_FIELD) {
System.arraycopy(event.values, 0, magneticFieldValues, 0, magneticFieldValues.length);
}
if (event.sensor.getType() == Sensor.TYPE_GYROSCOPE) {
if (nativeOrientation == Orientation.Portrait) {
System.arraycopy(event.values, 0, gyroscopeValues, 0, gyroscopeValues.length);
} else {
gyroscopeValues[0] = event.values[1];
gyroscopeValues[1] = -event.values[0];
gyroscopeValues[2] = event.values[2];
}
}
}
}
}