下面列出了android.view.Surface#ROTATION_90 ( ) 实例代码，或者点击链接到github查看源代码，也可以在右侧发表评论。
private void configureDeviceAngle() {
switch (mDeviceOrientation) {
case Surface.ROTATION_0: // Portrait
SensorManager.remapCoordinateSystem(mRotation, SensorManager.AXIS_X,
SensorManager.AXIS_Y, mRotationMapped);
break;
case Surface.ROTATION_90: // Landscape
SensorManager.remapCoordinateSystem(mRotation, SensorManager.AXIS_Y,
SensorManager.AXIS_MINUS_Z, mRotationMapped);
break;
case Surface.ROTATION_180: // Portrait
SensorManager.remapCoordinateSystem(mRotation, SensorManager.AXIS_MINUS_X,
SensorManager.AXIS_MINUS_Y, mRotationMapped);
break;
case Surface.ROTATION_270: // Landscape
SensorManager.remapCoordinateSystem(mRotation, SensorManager.AXIS_MINUS_Y,
SensorManager.AXIS_Z, mRotationMapped);
break;
}
}
private static int getDisplayRotation(Activity activity)
{
int rotation = activity.getWindowManager().getDefaultDisplay()
.getRotation();
switch (rotation)
{
case Surface.ROTATION_0:
return 0;
case Surface.ROTATION_90:
return 90;
case Surface.ROTATION_180:
return 180;
case Surface.ROTATION_270:
return 270;
}
return 0;
}
/**
* Configures the necessary {@link android.graphics.Matrix} transformation to `mTextureView`.
* This method should be called after the camera preview size is determined in
* setUpCameraOutputs and also the size of `mTextureView` is fixed.
*
* @param viewWidth The width of `mTextureView`
* @param viewHeight The height of `mTextureView`
*/
private void configureTransform(final int viewWidth, final int viewHeight) {
final Activity activity = getActivity();
if (null == textureView || null == previewSize || null == activity) {
return;
}
final int rotation = activity.getWindowManager().getDefaultDisplay().getRotation();
final Matrix matrix = new Matrix();
final RectF viewRect = new RectF(0, 0, viewWidth, viewHeight);
final RectF bufferRect = new RectF(0, 0, previewSize.getHeight(), previewSize.getWidth());
final float centerX = viewRect.centerX();
final float centerY = viewRect.centerY();
if (Surface.ROTATION_90 == rotation || Surface.ROTATION_270 == rotation) {
bufferRect.offset(centerX - bufferRect.centerX(), centerY - bufferRect.centerY());
matrix.setRectToRect(viewRect, bufferRect, Matrix.ScaleToFit.FILL);
final float scale =
Math.max(
(float) viewHeight / previewSize.getHeight(),
(float) viewWidth / previewSize.getWidth());
matrix.postScale(scale, scale, centerX, centerY);
matrix.postRotate(90 * (rotation - 2), centerX, centerY);
} else if (Surface.ROTATION_180 == rotation) {
matrix.postRotate(180, centerX, centerY);
}
textureView.setTransform(matrix);
}
/**
* Configures the necessary {@link android.graphics.Matrix} transformation to `mTextureView`.
* This method should be called after the camera preview size is determined in
* setUpCameraOutputs and also the size of `mTextureView` is fixed.
*
* @param viewWidth The width of `mTextureView`
* @param viewHeight The height of `mTextureView`
*/
private void configureTransform(final int viewWidth, final int viewHeight) {
final Activity activity = getActivity();
if (null == textureView || null == previewSize || null == activity) {
return;
}
final int rotation = activity.getWindowManager().getDefaultDisplay().getRotation();
final Matrix matrix = new Matrix();
final RectF viewRect = new RectF(0, 0, viewWidth, viewHeight);
final RectF bufferRect = new RectF(0, 0, previewSize.getHeight(), previewSize.getWidth());
final float centerX = viewRect.centerX();
final float centerY = viewRect.centerY();
if (Surface.ROTATION_90 == rotation || Surface.ROTATION_270 == rotation) {
bufferRect.offset(centerX - bufferRect.centerX(), centerY - bufferRect.centerY());
matrix.setRectToRect(viewRect, bufferRect, Matrix.ScaleToFit.FILL);
final float scale =
Math.max(
(float) viewHeight / previewSize.getHeight(),
(float) viewWidth / previewSize.getWidth());
matrix.postScale(scale, scale, centerX, centerY);
matrix.postRotate(90 * (rotation - 2), centerX, centerY);
} else if (Surface.ROTATION_180 == rotation) {
matrix.postRotate(180, centerX, centerY);
}
textureView.setTransform(matrix);
}
public static int getRotationAngle(int rotation)
{
int degrees = 0;
switch (rotation) {
case Surface.ROTATION_0:
degrees = 0;
break;
case Surface.ROTATION_90:
degrees = 90;
break;
case Surface.ROTATION_180:
degrees = 180;
break;
case Surface.ROTATION_270:
degrees = 270;
break;
default:
break;
}
return degrees;
}
/**
* Configures the necessary {@link android.graphics.Matrix} transformation to `mTextureView`.
* This method should be called after the camera preview size is determined in
* setUpCameraOutputs and also the size of `mTextureView` is fixed.
*
* @param viewWidth The width of `mTextureView`
* @param viewHeight The height of `mTextureView`
*/
private void configureTransform(int viewWidth, int viewHeight) {
Activity activity = getActivity();
if (null == mTextureView || null == mPreviewSize || null == activity) {
return;
}
int rotation = activity.getWindowManager().getDefaultDisplay().getRotation();
Matrix matrix = new Matrix();
RectF viewRect = new RectF(0, 0, viewWidth, viewHeight);
RectF bufferRect = new RectF(0, 0, mPreviewSize.getHeight(), mPreviewSize.getWidth());
float centerX = viewRect.centerX();
float centerY = viewRect.centerY();
if (Surface.ROTATION_90 == rotation || Surface.ROTATION_270 == rotation) {
bufferRect.offset(centerX - bufferRect.centerX(), centerY - bufferRect.centerY());
matrix.setRectToRect(viewRect, bufferRect, Matrix.ScaleToFit.FILL);
float scale = Math.max(
(float) viewHeight / mPreviewSize.getHeight(),
(float) viewWidth / mPreviewSize.getWidth());
matrix.postScale(scale, scale, centerX, centerY);
matrix.postRotate(90 * (rotation - 2), centerX, centerY);
} else if (Surface.ROTATION_180 == rotation) {
matrix.postRotate(180, centerX, centerY);
}
mTextureView.setTransform(matrix);
}
private int calculateDisplayRotation() {
// http://developer.android.com/reference/android/hardware/Camera.html#setDisplayOrientation(int)
int rotation = displayConfiguration.getRotation();
int degrees = 0;
switch (rotation) {
case Surface.ROTATION_0:
degrees = 0;
break;
case Surface.ROTATION_90:
degrees = 90;
break;
case Surface.ROTATION_180:
degrees = 180;
break;
case Surface.ROTATION_270:
degrees = 270;
break;
}
int result;
if (cameraInfo.facing == Camera.CameraInfo.CAMERA_FACING_FRONT) {
result = (cameraInfo.orientation + degrees) % 360;
result = (360 - result) % 360; // compensate the mirror
} else { // back-facing
result = (cameraInfo.orientation - degrees + 360) % 360;
}
Log.i(TAG, "Camera Display Orientation: " + result);
return result;
}
/**
* 保证预览方向正确
*
* @param activity
* @param cameraId
* @param camera
*/
public void setCameraDisplayOrientation(Activity activity,
int cameraId, Camera camera) {
Camera.CameraInfo info =
new Camera.CameraInfo();
Camera.getCameraInfo(cameraId, info);
int rotation = activity.getWindowManager().getDefaultDisplay()
.getRotation();
int degrees = 0;
switch (rotation) {
case Surface.ROTATION_0:
degrees = 0;
break;
case Surface.ROTATION_90:
degrees = 90;
break;
case Surface.ROTATION_180:
degrees = 180;
break;
case Surface.ROTATION_270:
degrees = 270;
break;
}
int result;
if (info.facing == Camera.CameraInfo.CAMERA_FACING_FRONT) {
result = (info.orientation + degrees) % 360;
result = (360 - result) % 360; // compensate the mirror
} else { // back-facing
result = (info.orientation - degrees + 360) % 360;
}
camera.setDisplayOrientation(result);
}
private int getDisplayOrientation(Camera.CameraInfo info, boolean isStillCapture) {
WindowManager mgr = (WindowManager) ApplicationLoader.applicationContext.getSystemService(Context.WINDOW_SERVICE);
int rotation = mgr.getDefaultDisplay().getRotation();
int degrees = 0;
switch (rotation) {
case Surface.ROTATION_0:
degrees = 0;
break;
case Surface.ROTATION_90:
degrees = 90;
break;
case Surface.ROTATION_180:
degrees = 180;
break;
case Surface.ROTATION_270:
degrees = 270;
break;
}
int displayOrientation;
if (info.facing == Camera.CameraInfo.CAMERA_FACING_FRONT) {
displayOrientation = (info.orientation + degrees) % 360;
displayOrientation = (360 - displayOrientation) % 360;
if (!isStillCapture && displayOrientation == 90) {
displayOrientation = 270;
}
if (!isStillCapture && "Huawei".equals(Build.MANUFACTURER) && "angler".equals(Build.PRODUCT) && displayOrientation == 270) {
displayOrientation = 90;
}
} else {
displayOrientation = (info.orientation - degrees + 360) % 360;
}
return displayOrientation;
}
/**
* Configures the necessary {@link android.graphics.Matrix} transformation to `mTextureView`.
* This method should not to be called until the camera preview size is determined in
* openCamera, or until the size of `mTextureView` is fixed.
*
* @param viewWidth The width of `mTextureView`
* @param viewHeight The height of `mTextureView`
*/
private void configureTransform(int viewWidth, int viewHeight) {
Activity activity = getActivity();
if (null == mTextureView || null == mPreviewSize || null == activity) {
return;
}
int rotation = activity.getWindowManager().getDefaultDisplay().getRotation();
final Matrix matrix = new Matrix();
RectF viewRect = new RectF(0, 0, viewWidth, viewHeight);
RectF bufferRect = new RectF(0, 0, mPreviewSize.getHeight(), mPreviewSize.getWidth());
float centerX = viewRect.centerX();
float centerY = viewRect.centerY();
if (Surface.ROTATION_90 == rotation || Surface.ROTATION_270 == rotation) {
bufferRect.offset(centerX - bufferRect.centerX(), centerY - bufferRect.centerY());
matrix.setRectToRect(viewRect, bufferRect, Matrix.ScaleToFit.FILL);
float scale = Math.max(
(float) viewHeight / mPreviewSize.getHeight(),
(float) viewWidth / mPreviewSize.getWidth());
matrix.postScale(scale, scale, centerX, centerY);
matrix.postRotate(90 * (rotation - 2), centerX, centerY);
}
activity.runOnUiThread(new Runnable() {
@Override
public void run() {
mTextureView.setTransform(matrix);
}
});
}
protected int getScreenOrientation() {
switch (getWindowManager().getDefaultDisplay().getRotation()) {
case Surface.ROTATION_270:
return 270;
case Surface.ROTATION_180:
return 180;
case Surface.ROTATION_90:
return 90;
default:
return 0;
}
}
private void setCameraDisplayOrientation() {
Camera.CameraInfo info = new Camera.CameraInfo();
int rotation = ((Activity) getContext()).getWindowManager().getDefaultDisplay().getRotation();
int degrees = 0;
DisplayMetrics dm = new DisplayMetrics();
Camera.getCameraInfo(cameraId, info);
((Activity) getContext()).getWindowManager().getDefaultDisplay().getMetrics(dm);
switch (rotation) {
case Surface.ROTATION_0:
degrees = 0;
break;
case Surface.ROTATION_90:
degrees = 90;
break;
case Surface.ROTATION_180:
degrees = 180;
break;
case Surface.ROTATION_270:
degrees = 270;
break;
}
facing = info.facing;
if (info.facing == Camera.CameraInfo.CAMERA_FACING_FRONT) {
displayOrientation = (info.orientation + degrees) % 360;
displayOrientation = (360 - displayOrientation) % 360;
} else {
displayOrientation = (info.orientation - degrees + 360) % 360;
}
Log.d(TAG, "screen is rotated " + degrees + "deg from natural");
Log.d(TAG, (info.facing == Camera.CameraInfo.CAMERA_FACING_FRONT ? "front" : "back") + " camera is oriented -" + info.orientation + "deg from natural");
Log.d(TAG, "need to rotate preview " + displayOrientation + "deg");
mCamera.setDisplayOrientation(displayOrientation);
}
/**
* Configures the necessary {@link android.graphics.Matrix} transformation to `mTextureView`.
* This method should be called after the camera preview size is determined in
* setUpCameraOutputs and also the size of `mTextureView` is fixed.
*
* @param viewWidth The width of `mTextureView`
* @param viewHeight The height of `mTextureView`
*/
@DebugLog
private void configureTransform(final int viewWidth, final int viewHeight) {
final Activity activity = getActivity();
if (textureView == null || previewSize == null || activity == null) {
return;
}
final int rotation = activity.getWindowManager().getDefaultDisplay().getRotation();
final Matrix matrix = new Matrix();
final RectF viewRect = new RectF(0, 0, viewWidth, viewHeight);
final RectF bufferRect = new RectF(0, 0, previewSize.getHeight(), previewSize.getWidth());
final float centerX = viewRect.centerX();
final float centerY = viewRect.centerY();
if(rotation == Surface.ROTATION_90) {
//Log.d(TAG, "Rotation is Surface.ROTATION_90");
bufferRect.offset(centerX - bufferRect.centerX(), centerY - bufferRect.centerY());
matrix.setRectToRect(viewRect, bufferRect, Matrix.ScaleToFit.FILL);
final float scale =
Math.max(
(float) viewHeight / previewSize.getHeight(),
(float) viewWidth / previewSize.getWidth());
matrix.postScale(scale, scale, centerX, centerY);
matrix.postRotate(-90, centerX, centerY);
} /*else if(rotation == Surface.ROTATION_180) {
Log.d(TAG, "Rotation is Surface.ROTATION_180");
matrix.postRotate(180, centerX, centerY);
} else if(rotation == Surface.ROTATION_270) {
Log.d(TAG, "Rotation is Surface.ROTATION_270");
bufferRect.offset(centerX - bufferRect.centerX(), centerY - bufferRect.centerY());
matrix.setRectToRect(viewRect, bufferRect, Matrix.ScaleToFit.FILL);
final float scale =
Math.max(
(float) viewHeight / previewSize.getHeight(),
(float) viewWidth / previewSize.getWidth());
matrix.postScale(scale, scale, centerX, centerY);
matrix.postRotate(90 * (rotation - 2), centerX, centerY);
}*/
textureView.setTransform(matrix);
}
/**
* --------------- 获得系统默认摄像头旋转的角度 ------------------
* @param cameraId 摄像头Id
* @return
*/
public static int getRightCameraOrientation(int cameraId) {
Camera.CameraInfo info = new android.hardware.Camera.CameraInfo();
Camera.getCameraInfo(cameraId, info);
// int rotation = context.getWindowManager().getDefaultDisplay()
// .getRotation();
int degrees = 90;
switch (surfaceRotation) {
case Surface.ROTATION_0:
degrees = 0;
break;
case Surface.ROTATION_90:
degrees = 90;
break;
case Surface.ROTATION_180:
degrees = 180;
break;
case Surface.ROTATION_270:
degrees = 270;
break;
}
//
int result;
if (info.facing == Camera.CameraInfo.CAMERA_FACING_FRONT) {
result = (info.orientation + degrees) % 360;
result = (360 - result) % 360; // compensate the mirror
} else { // back-facing
result = (info.orientation - degrees + 360) % 360;
}
return result;
}
/**
* Calculates the correct rotation for the given camera id and sets the rotation in the
* parameters. It also sets the camera's display orientation and rotation.
*
* @param parameters the camera parameters for which to set the rotation
* @param cameraId the camera id to set rotation based on
*/
private void setRotation(Camera camera, Camera.Parameters parameters, int cameraId) {
WindowManager windowManager =
(WindowManager) mContext.getSystemService(Context.WINDOW_SERVICE);
int degrees = 0;
int rotation = windowManager.getDefaultDisplay().getRotation();
switch (rotation) {
case Surface.ROTATION_0:
degrees = 0;
break;
case Surface.ROTATION_90:
degrees = 90;
break;
case Surface.ROTATION_180:
degrees = 180;
break;
case Surface.ROTATION_270:
degrees = 270;
break;
default:
Log.e(TAG, "Bad rotation value: " + rotation);
}
CameraInfo cameraInfo = new CameraInfo();
Camera.getCameraInfo(cameraId, cameraInfo);
int angle;
int displayAngle;
if (cameraInfo.facing == CameraInfo.CAMERA_FACING_FRONT) {
angle = (cameraInfo.orientation + degrees) % 360;
displayAngle = (360 - angle); // compensate for it being mirrored
} else { // back-facing
angle = (cameraInfo.orientation - degrees + 360) % 360;
displayAngle = angle;
}
// This corresponds to the rotation constants in {@link Frame}.
mRotation = angle / 90;
camera.setDisplayOrientation(displayAngle);
parameters.setRotation(angle);
}
/**
* Calculates the correct rotation for the given camera id and sets the rotation in the
* parameters. It also sets the camera's display orientation and rotation.
*
* @param parameters the camera parameters for which to set the rotation
* @param cameraId the camera id to set rotation based on
*/
private void setRotation(Camera camera, Camera.Parameters parameters, int cameraId) {
WindowManager windowManager =
(WindowManager) mContext.getSystemService(Context.WINDOW_SERVICE);
int degrees = 0;
int rotation = windowManager.getDefaultDisplay().getRotation();
switch (rotation) {
case Surface.ROTATION_0:
degrees = 0;
break;
case Surface.ROTATION_90:
degrees = 90;
break;
case Surface.ROTATION_180:
degrees = 180;
break;
case Surface.ROTATION_270:
degrees = 270;
break;
default:
Log.e(TAG, "Bad rotation value: " + rotation);
}
CameraInfo cameraInfo = new CameraInfo();
Camera.getCameraInfo(cameraId, cameraInfo);
int angle;
int displayAngle;
if (cameraInfo.facing == CameraInfo.CAMERA_FACING_FRONT) {
angle = (cameraInfo.orientation + degrees) % 360;
displayAngle = (360 - angle) % 360; // compensate for it being mirrored
} else { // back-facing
angle = (cameraInfo.orientation - degrees + 360) % 360;
displayAngle = angle;
}
// This corresponds to the rotation constants in {@link Frame}.
mRotation = angle / 90;
camera.setDisplayOrientation(displayAngle);
parameters.setRotation(angle);
}
void setDesiredCameraParameters(Camera camera, boolean safeMode) {
Camera.Parameters parameters = camera.getParameters();
if (parameters == null) {
Log.w(TAG, "Device error: no camera parameters are available. Proceeding without configuration.");
return;
}
Log.i(TAG, "Initial camera parameters: " + parameters.flatten());
if (safeMode) {
Log.w(TAG, "In camera config safe mode -- most settings will not be honored");
}
SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(context);
setFlash(camera,parameters, flashSetting);
// setAutoFocus(camera, parameters,autoFocusSetting);
if (!safeMode) {
if (prefs.getBoolean(Preferences.KEY_INVERT_SCAN, false)) {
CameraConfigurationUtils.setInvertColor(parameters);
}
if (!prefs.getBoolean(Preferences.KEY_DISABLE_BARCODE_SCENE_MODE, true)) {
CameraConfigurationUtils.setBarcodeSceneMode(parameters);
}
if (!prefs.getBoolean(Preferences.KEY_DISABLE_METERING, true)) {
CameraConfigurationUtils.setVideoStabilization(parameters);
CameraConfigurationUtils.setFocusArea(parameters);
CameraConfigurationUtils.setMetering(parameters);
}
}
parameters.setPreviewSize(cameraResolution.x, cameraResolution.y);
camera.setParameters(parameters);
switch (rotation) {
case Surface.ROTATION_0:
camera.setDisplayOrientation(90);
Log.i(TAG,"ROTATION_0 check: "+ rotation);
break;
case Surface.ROTATION_90:
camera.setDisplayOrientation(0);
Log.i(TAG,"ROTATION_90 check: "+ rotation);
break;
case Surface.ROTATION_270:
camera.setDisplayOrientation(180);
Log.i(TAG,"ROTATION_270 check: "+ rotation);
break;
default:
camera.setDisplayOrientation(0);
Log.i(TAG,"Default ROTATION check: "+ rotation);
break;
}
Log.i(TAG,"Rotation Happened");
Camera.Parameters afterParameters = camera.getParameters();
Camera.Size afterSize = afterParameters.getPreviewSize();
if (afterSize!= null && (cameraResolution.x != afterSize.width || cameraResolution.y != afterSize.height)) {
Log.w(TAG, "Camera said it supported preview size " + cameraResolution.x + 'x' + cameraResolution.y +
", but after setting it, preview size is " + afterSize.width + 'x' + afterSize.height);
cameraResolution.x = afterSize.width;
cameraResolution.y = afterSize.height;
}
}
public static void lockOrientation(Activity activity) {
if (prevOrientation != -10) {
return;
}
try {
prevOrientation = activity.getRequestedOrientation();
WindowManager manager = (WindowManager) activity.getSystemService(Activity.WINDOW_SERVICE);
if (manager != null && manager.getDefaultDisplay() != null) {
int rotation = manager.getDefaultDisplay().getRotation();
int orientation = activity.getResources().getConfiguration().orientation;
if (rotation == Surface.ROTATION_270) {
if (orientation == Configuration.ORIENTATION_PORTRAIT) {
activity.setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_PORTRAIT);
} else {
if (Build.VERSION.SDK_INT >= 9) {
activity.setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_REVERSE_LANDSCAPE);
} else {
activity.setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE);
}
}
} else if (rotation == Surface.ROTATION_90) {
if (orientation == Configuration.ORIENTATION_PORTRAIT) {
if (Build.VERSION.SDK_INT >= 9) {
activity.setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_REVERSE_PORTRAIT);
} else {
activity.setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_PORTRAIT);
}
} else {
activity.setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE);
}
} else if (rotation == Surface.ROTATION_0) {
if (orientation == Configuration.ORIENTATION_LANDSCAPE) {
activity.setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE);
} else {
activity.setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_PORTRAIT);
}
} else {
if (orientation == Configuration.ORIENTATION_LANDSCAPE) {
if (Build.VERSION.SDK_INT >= 9) {
activity.setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_REVERSE_LANDSCAPE);
} else {
activity.setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE);
}
} else {
if (Build.VERSION.SDK_INT >= 9) {
activity.setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_REVERSE_PORTRAIT);
} else {
activity.setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_PORTRAIT);
}
}
}
}
} catch (Exception e) {
FileLog.e("yahala", e);
}
}
/**
* Restart the camera.
*
* @throws IOException exception
*/
protected void restartCamera() throws IOException {
if (mCamera == null) {
return;
}
final Camera.Parameters params = mCamera.getParameters();
final SizePair sp = generateValidPreviewSize(mCamera, mDesiredPreviewViewSize.x, mDesiredPreviewViewSize.y);
params.setPictureSize(sp.mPicture.getWidth(), sp.mPicture.getHeight());
params.setPreviewSize(sp.mPicture.getWidth(), sp.mPicture.getHeight());
params.setPictureFormat(PixelFormat.JPEG);
params.setJpegQuality(mCameraConfig.jpegQuality);
final Display display = ((WindowManager) getContext().getSystemService(Context.WINDOW_SERVICE)).getDefaultDisplay();
final Camera.CameraInfo cameraInfo = new Camera.CameraInfo();
Camera.getCameraInfo(mCameraConfig.cameraInfo, cameraInfo);
if (mCameraConfig.cameraInfo == CameraConfig.BACK_FACING) {
/* back camera */
/* TODO orientation calculation*/
if (display.getRotation() == Surface.ROTATION_0) {
mCamera.setDisplayOrientation(90);
} else if (display.getRotation() == Surface.ROTATION_90) {
} else if (display.getRotation() == Surface.ROTATION_180) {
} else if (display.getRotation() == Surface.ROTATION_270) {
mCamera.setDisplayOrientation(180);
}
} else {
/* front camera */
final int degrees;
if (display.getRotation() == Surface.ROTATION_0) {
degrees = 0;
} else if (display.getRotation() == Surface.ROTATION_90) {
degrees = 90;
} else if (display.getRotation() == Surface.ROTATION_180) {
degrees = 180;
} else {
degrees = 270;
}
int result = (cameraInfo.orientation + degrees) % 360;
result = (360 - result) % 360;
mCamera.setDisplayOrientation(result);
params.setRotation(result);
}
/* make sure to auto focus */
if (params.getSupportedFocusModes().contains(Camera.Parameters.FOCUS_MODE_CONTINUOUS_PICTURE)) {
params.setFocusMode(Camera.Parameters.FOCUS_MODE_CONTINUOUS_PICTURE);
} else if (params.getSupportedFocusModes().size() > 0) {
params.setFocusMode(params.getSupportedFocusModes().get((0)));
}
mCamera.setParameters(params);
mCamera.setPreviewDisplay(mHolder);
mCamera.startPreview();
}
@SuppressWarnings("SuspiciousNameCombination")
public float[] interpretSensorEvent(@NonNull Context context, @Nullable SensorEvent event) {
if (event == null) {
return null;
}
float[] rotationVector = getRotationVectorFromSensorEvent(event);
if (!mTargeted) {
setTargetVector(rotationVector);
return null;
}
SensorManager.getRotationMatrixFromVector(mRotationMatrix, rotationVector);
int rotation = ((WindowManager) context
.getSystemService(Context.WINDOW_SERVICE))
.getDefaultDisplay()
.getRotation();
if (rotation == Surface.ROTATION_0) {
SensorManager.getAngleChange(mTiltVector, mRotationMatrix, mTargetMatrix);
} else {
switch (rotation) {
case Surface.ROTATION_90:
SensorManager.remapCoordinateSystem(mRotationMatrix, AXIS_Y, AXIS_MINUS_X, mOrientedRotationMatrix);
break;
case Surface.ROTATION_180:
SensorManager.remapCoordinateSystem(mRotationMatrix, AXIS_MINUS_X, AXIS_MINUS_Y, mOrientedRotationMatrix);
break;
case Surface.ROTATION_270:
SensorManager.remapCoordinateSystem(mRotationMatrix, AXIS_MINUS_Y, AXIS_X, mOrientedRotationMatrix);
break;
}
SensorManager.getAngleChange(mTiltVector, mOrientedRotationMatrix, mTargetMatrix);
}
for (int i = 0; i < mTiltVector.length; i++) {
mTiltVector[i] /= Math.PI;
mTiltVector[i] *= mTiltSensitivity;
if (mTiltVector[i] > 1) {
mTiltVector[i] = 1f;
} else if (mTiltVector[i] < -1) {
mTiltVector[i] = -1f;
}
}
return mTiltVector;
}