List of usage examples for android.view Surface ROTATION_90
int ROTATION_90
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From source file:com.gsma.rcs.ri.sharing.video.OutgoingVideoSharing.java
/** * Start the camera preview/*w w w . ja va 2 s .c o m*/ */ private void startCameraPreview() { if (mCamera == null) { return; } // Camera settings Camera.Parameters p = mCamera.getParameters(); p.setPreviewFormat(PixelFormat.YCbCr_420_SP); // Orientation Display display = ((WindowManager) getSystemService(WINDOW_SERVICE)).getDefaultDisplay(); switch (display.getRotation()) { case Surface.ROTATION_0: if (LogUtils.isActive) { Log.d(LOGTAG, "ROTATION_0"); } if (mOpenedCameraId == CameraOptions.FRONT) { mVideoPlayer.setOrientation(Orientation.ROTATE_90_CCW); } else { mVideoPlayer.setOrientation(Orientation.ROTATE_90_CW); } mCamera.setDisplayOrientation(90); break; case Surface.ROTATION_90: if (LogUtils.isActive) { Log.d(LOGTAG, "ROTATION_90"); } mVideoPlayer.setOrientation(Orientation.NONE); break; case Surface.ROTATION_180: if (LogUtils.isActive) { Log.d(LOGTAG, "ROTATION_180"); } if (mOpenedCameraId == CameraOptions.FRONT) { mVideoPlayer.setOrientation(Orientation.ROTATE_90_CW); } else { mVideoPlayer.setOrientation(Orientation.ROTATE_90_CCW); } mCamera.setDisplayOrientation(270); break; case Surface.ROTATION_270: if (LogUtils.isActive) { Log.d(LOGTAG, "ROTATION_270"); } if (mOpenedCameraId == CameraOptions.FRONT) { mVideoPlayer.setOrientation(Orientation.ROTATE_180); } else { mVideoPlayer.setOrientation(Orientation.ROTATE_180); } mCamera.setDisplayOrientation(180); break; } // Check if preview size is supported if (isPreviewSizeSupported(p, mVideoWidth, mVideoHeight)) { // Use the existing size without resizing p.setPreviewSize(mVideoWidth, mVideoHeight); // TODO videoPlayer.activateResizing(videoWidth, videoHeight); // // same size = no // resizing if (LogUtils.isActive) { Log.d(LOGTAG, "Camera preview initialized with size " + mVideoWidth + "x" + mVideoHeight); } } else { // Check if can use a other known size (QVGA, CIF or VGA) int w = 0; int h = 0; for (Camera.Size size : p.getSupportedPreviewSizes()) { w = size.width; h = size.height; if ((w == H264Config.QVGA_WIDTH && h == H264Config.QVGA_HEIGHT) || (w == H264Config.CIF_WIDTH && h == H264Config.CIF_HEIGHT) || (w == H264Config.VGA_WIDTH && h == H264Config.VGA_HEIGHT)) { break; } } if (w != 0) { p.setPreviewSize(w, h); // TODO does not work if default sizes are not supported like // for Samsung S5 mini // mVideoPlayer.activateResizing(w, h); if (LogUtils.isActive) { Log.d(LOGTAG, "Camera preview initialized with size " + w + "x" + h + " with a resizing to " + mVideoWidth + "x" + mVideoHeight); } } else { // The camera don't have known size, we can't use it if (LogUtils.isActive) { Log.d(LOGTAG, "Camera preview can't be initialized with size " + mVideoWidth + "x" + mVideoHeight); } Toast.makeText(this, getString(R.string.label_session_failed, "Camera is not compatible"), Toast.LENGTH_SHORT).show(); quitSession(); return; } } // Set camera parameters mCamera.setParameters(p); try { mCamera.setPreviewDisplay(mVideoView.getHolder()); mCamera.startPreview(); mCameraPreviewRunning = true; } catch (Exception e) { mCamera = null; } }
From source file:com.google.android.apps.santatracker.games.gumball.TiltGameFragment.java
@Override public void onSensorChanged(SensorEvent event) { float x, y;/*w w w .ja v a 2 s .com*/ if (getActivity() != null) { // Store the current screen rotation (used to offset the readings of the sensor). mRotation = getActivity().getWindowManager().getDefaultDisplay().getRotation(); } // Handle screen rotations by interpreting the sensor readings here if (mRotation == Surface.ROTATION_0) { x = -event.values[0]; y = -event.values[1]; } else if (mRotation == Surface.ROTATION_90) { x = event.values[1]; y = -event.values[0]; } else if (mRotation == Surface.ROTATION_180) { x = event.values[0]; y = event.values[1]; } else { x = -event.values[1]; y = event.values[0]; } // keep y low to simulate gravity if (mPreviousSensorY == 0f) { mPreviousSensorY = -9; } else if (mPreviousSensorY > y) { mPreviousSensorY = y; } // restrict x to ~+-45 degrees if (x > 1.7) { x = 2; } else if (x < -1.7) { x = -2; } mWorld.getWorld().setGravity(new Vec2(x, mPreviousSensorY)); }
From source file:io.engineersatwork.blink.Camera2BasicFragment.java
/** * Sets up member variables related to camera. * * @param width The width of available size for camera preview * @param height The height of available size for camera preview *///from w w w .j av a 2 s . com private void setUpCameraOutputs(int width, int height) { Activity activity = getActivity(); CameraManager manager = (CameraManager) activity.getSystemService(Context.CAMERA_SERVICE); try { for (String cameraId : manager.getCameraIdList()) { CameraCharacteristics characteristics = manager.getCameraCharacteristics(cameraId); // We don't use a front facing camera in this sample. Integer facing = characteristics.get(CameraCharacteristics.LENS_FACING); if (facing != null && facing == CameraCharacteristics.LENS_FACING_BACK) { continue; } StreamConfigurationMap map = characteristics .get(CameraCharacteristics.SCALER_STREAM_CONFIGURATION_MAP); if (map == null) { continue; } // For processing images we crop a small area from the whole camera image to speedup List<Size> supportedSizes = Arrays.asList(map.getOutputSizes(ImageFormat.YUV_420_888)); Collections.sort(supportedSizes, new CompareSizesByArea()); Size smallest = supportedSizes.get(0); Log.e("abcde", "Use size: " + smallest.toString()); mCropRect = new Rect(/*left*/ 0, /*top*/ 0, /*right*/ smallest.getWidth(), /*bottom*/ smallest.getHeight()); // The image reader uses the cropped size mImageReader = ImageReader.newInstance(smallest.getWidth(), smallest.getHeight(), ImageFormat.YUV_420_888, /*maxImages*/2); mImageReader.setOnImageAvailableListener(mOnImageAvailableListener, mBackgroundHandler); // Find out if we need to swap dimension to get the preview size relative to sensor // coordinate. int displayRotation = activity.getWindowManager().getDefaultDisplay().getRotation(); //noinspection ConstantConditions mSensorOrientation = characteristics.get(CameraCharacteristics.SENSOR_ORIENTATION); boolean swappedDimensions = false; switch (displayRotation) { case Surface.ROTATION_0: case Surface.ROTATION_180: if (mSensorOrientation == 90 || mSensorOrientation == 270) { swappedDimensions = true; } break; case Surface.ROTATION_90: case Surface.ROTATION_270: if (mSensorOrientation == 0 || mSensorOrientation == 180) { swappedDimensions = true; } break; default: Log.e(TAG, "Display rotation is invalid: " + displayRotation); } Point displaySize = new Point(); activity.getWindowManager().getDefaultDisplay().getSize(displaySize); int rotatedPreviewWidth = width; int rotatedPreviewHeight = height; int maxPreviewWidth = displaySize.x; int maxPreviewHeight = displaySize.y; if (swappedDimensions) { rotatedPreviewWidth = height; rotatedPreviewHeight = width; maxPreviewWidth = displaySize.y; maxPreviewHeight = displaySize.x; } if (maxPreviewWidth > MAX_PREVIEW_WIDTH) { maxPreviewWidth = MAX_PREVIEW_WIDTH; } if (maxPreviewHeight > MAX_PREVIEW_HEIGHT) { maxPreviewHeight = MAX_PREVIEW_HEIGHT; } // Danger, W.R.! Attempting to use too large a preview size could exceed the camera // bus' bandwidth limitation, resulting in gorgeous previews but the storage of // garbage capture data. mPreviewSize = chooseOptimalSize(map.getOutputSizes(SurfaceTexture.class), rotatedPreviewWidth, rotatedPreviewHeight, maxPreviewWidth, maxPreviewHeight, smallest); // We fit the aspect ratio of TextureView to the size of preview we picked. int orientation = getResources().getConfiguration().orientation; if (orientation == Configuration.ORIENTATION_LANDSCAPE) { mTextureView.setAspectRatio(mPreviewSize.getWidth(), mPreviewSize.getHeight()); } else { mTextureView.setAspectRatio(mPreviewSize.getHeight(), mPreviewSize.getWidth()); } // Check if the flash is supported. Boolean available = characteristics.get(CameraCharacteristics.FLASH_INFO_AVAILABLE); mFlashSupported = available == null ? false : available; mCameraId = cameraId; return; } } catch (CameraAccessException e) { e.printStackTrace(); } catch (NullPointerException e) { // Currently an NPE is thrown when the Camera2API is used but not supported on the // device this code runs. ErrorDialog.newInstance(getString(R.string.camera_error)).show(getChildFragmentManager(), FRAGMENT_DIALOG); } }
From source file:com.askjeffreyliu.camera2barcode.camera.CameraSource.java
/** * 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` *///from ww w .ja va 2 s. c o m private void configureTransform(int viewWidth, int viewHeight) { if (null == mTextureView || null == mPreviewSize) { return; } int rotation = mDisplayOrientation; 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); }
From source file:com.tenth.space.ui.fragment.HomeFragment.java
/** * Sets up member variables related to camera. * * @param width The width of available size for camera preview * @param height The height of available size for camera preview *///from w w w . j a v a 2s .co m private void setUpCameraOutputs(int width, int height) { Activity activity = getActivity(); CameraManager manager = (CameraManager) activity.getSystemService(Context.CAMERA_SERVICE); try { for (String cameraId : manager.getCameraIdList()) { CameraCharacteristics characteristics = manager.getCameraCharacteristics(cameraId); // We don't use a front facing camera in this sample. Integer facing = characteristics.get(CameraCharacteristics.LENS_FACING); if (facing != null && facing == CameraCharacteristics.LENS_FACING_FRONT) { continue; } StreamConfigurationMap map = characteristics .get(CameraCharacteristics.SCALER_STREAM_CONFIGURATION_MAP); if (map == null) { continue; } // For still image captures, we use the largest available size. Size largest = Collections.max(Arrays.asList(map.getOutputSizes(ImageFormat.JPEG)), new CompareSizesByArea()); // mImageReader = ImageReader.newInstance(largest.getWidth(), largest.getHeight(), ImageFormat.JPEG, /*maxImages*/2); // mImageReader.setOnImageAvailableListener(mOnImageAvailableListener, mBackgroundHandler); // Find out if we need to swap dimension to get the preview size relative to sensor // coordinate. int displayRotation = activity.getWindowManager().getDefaultDisplay().getRotation(); //noinspection ConstantConditions mSensorOrientation = characteristics.get(CameraCharacteristics.SENSOR_ORIENTATION); boolean swappedDimensions = false; switch (displayRotation) { case Surface.ROTATION_0: case Surface.ROTATION_180: if (mSensorOrientation == 90 || mSensorOrientation == 270) { swappedDimensions = true; } break; case Surface.ROTATION_90: case Surface.ROTATION_270: if (mSensorOrientation == 0 || mSensorOrientation == 180) { swappedDimensions = true; } break; default: Log.e(TAG, "Display rotation is invalid: " + displayRotation); } Point displaySize = new Point(); activity.getWindowManager().getDefaultDisplay().getSize(displaySize); int rotatedPreviewWidth = width; int rotatedPreviewHeight = height; int maxPreviewWidth = displaySize.x; int maxPreviewHeight = displaySize.y; if (swappedDimensions) { rotatedPreviewWidth = height; rotatedPreviewHeight = width; maxPreviewWidth = displaySize.y; maxPreviewHeight = displaySize.x; } if (maxPreviewWidth > MAX_PREVIEW_WIDTH) { maxPreviewWidth = MAX_PREVIEW_WIDTH; } if (maxPreviewHeight > MAX_PREVIEW_HEIGHT) { maxPreviewHeight = MAX_PREVIEW_HEIGHT; } // Danger, W.R.! Attempting to use too large a preview size could exceed the camera // bus' bandwidth limitation, resulting in gorgeous previews but the storage of // garbage capture data. mPreviewSize = chooseOptimalSize(map.getOutputSizes(SurfaceTexture.class), rotatedPreviewWidth, rotatedPreviewHeight, maxPreviewWidth, maxPreviewHeight, largest); // We fit the aspect ratio of TextureView to the size of preview we picked. int orientation = getResources().getConfiguration().orientation; if (orientation == Configuration.ORIENTATION_LANDSCAPE) { mTextureView.setAspectRatio(mPreviewSize.getWidth(), mPreviewSize.getHeight()); } else { mTextureView.setAspectRatio(mPreviewSize.getHeight(), mPreviewSize.getWidth()); } // Check if the flash is supported. Boolean available = characteristics.get(CameraCharacteristics.FLASH_INFO_AVAILABLE); mFlashSupported = available == null ? false : available; // mCameraId = cameraId; return; } } catch (CameraAccessException e) { e.printStackTrace(); } catch (NullPointerException e) { // ErrorDialog.newInstance("").show(getChildFragmentManager(), FRAGMENT_DIALOG); } }
From source file:com.tzutalin.dlibtest.CameraConnectionFragment.java
/** * 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` *//*w w w. ja va2s . c o m*/ @DebugLog 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); }
From source file:com.android.purenexussettings.TinkerActivity.java
public static void lockCurrentOrientation(Activity activity) { int currentRotation = activity.getWindowManager().getDefaultDisplay().getRotation(); int orientation = activity.getResources().getConfiguration().orientation; int frozenRotation = ActivityInfo.SCREEN_ORIENTATION_UNSPECIFIED; switch (currentRotation) { case Surface.ROTATION_0: frozenRotation = orientation == Configuration.ORIENTATION_LANDSCAPE ? ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE : ActivityInfo.SCREEN_ORIENTATION_PORTRAIT; break;//from w ww .j av a2s.c o m case Surface.ROTATION_90: frozenRotation = orientation == Configuration.ORIENTATION_PORTRAIT ? ActivityInfo.SCREEN_ORIENTATION_REVERSE_PORTRAIT : ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE; break; case Surface.ROTATION_180: frozenRotation = orientation == Configuration.ORIENTATION_LANDSCAPE ? ActivityInfo.SCREEN_ORIENTATION_REVERSE_LANDSCAPE : ActivityInfo.SCREEN_ORIENTATION_REVERSE_PORTRAIT; break; case Surface.ROTATION_270: frozenRotation = orientation == Configuration.ORIENTATION_PORTRAIT ? ActivityInfo.SCREEN_ORIENTATION_PORTRAIT : ActivityInfo.SCREEN_ORIENTATION_REVERSE_LANDSCAPE; break; } activity.setRequestedOrientation(frozenRotation); }
From source file:com.android.gpstest.GpsTestActivity.java
@TargetApi(Build.VERSION_CODES.GINGERBREAD) @Override/*from www .jav a 2s . c om*/ public void onSensorChanged(SensorEvent event) { double orientation = Double.NaN; double tilt = Double.NaN; switch (event.sensor.getType()) { case Sensor.TYPE_ROTATION_VECTOR: // Modern rotation vector sensors if (!mTruncateVector) { try { SensorManager.getRotationMatrixFromVector(mRotationMatrix, event.values); } catch (IllegalArgumentException e) { // On some Samsung devices, an exception is thrown if this vector > 4 (see #39) // Truncate the array, since we can deal with only the first four values Log.e(TAG, "Samsung device error? Will truncate vectors - " + e); mTruncateVector = true; // Do the truncation here the first time the exception occurs getRotationMatrixFromTruncatedVector(event.values); } } else { // Truncate the array to avoid the exception on some devices (see #39) getRotationMatrixFromTruncatedVector(event.values); } int rot = getWindowManager().getDefaultDisplay().getRotation(); switch (rot) { case Surface.ROTATION_0: // No orientation change, use default coordinate system SensorManager.getOrientation(mRotationMatrix, mValues); // Log.d(TAG, "Rotation-0"); break; case Surface.ROTATION_90: // Log.d(TAG, "Rotation-90"); SensorManager.remapCoordinateSystem(mRotationMatrix, SensorManager.AXIS_Y, SensorManager.AXIS_MINUS_X, mRemappedMatrix); SensorManager.getOrientation(mRemappedMatrix, mValues); break; case Surface.ROTATION_180: // Log.d(TAG, "Rotation-180"); SensorManager.remapCoordinateSystem(mRotationMatrix, SensorManager.AXIS_MINUS_X, SensorManager.AXIS_MINUS_Y, mRemappedMatrix); SensorManager.getOrientation(mRemappedMatrix, mValues); break; case Surface.ROTATION_270: // Log.d(TAG, "Rotation-270"); SensorManager.remapCoordinateSystem(mRotationMatrix, SensorManager.AXIS_MINUS_Y, SensorManager.AXIS_X, mRemappedMatrix); SensorManager.getOrientation(mRemappedMatrix, mValues); break; default: // This shouldn't happen - assume default orientation SensorManager.getOrientation(mRotationMatrix, mValues); // Log.d(TAG, "Rotation-Unknown"); break; } orientation = Math.toDegrees(mValues[0]); // azimuth tilt = Math.toDegrees(mValues[1]); break; case Sensor.TYPE_ORIENTATION: // Legacy orientation sensors orientation = event.values[0]; break; default: // A sensor we're not using, so return return; } // Correct for true north, if preference is set if (mFaceTrueNorth && mGeomagneticField != null) { orientation += mGeomagneticField.getDeclination(); // Make sure value is between 0-360 orientation = MathUtils.mod((float) orientation, 360.0f); } for (GpsTestListener listener : mGpsTestListeners) { listener.onOrientationChanged(orientation, tilt); } }
From source file:org.puder.trs80.EmulatorActivity.java
private void lockOrientation() { Display display = getWindowManager().getDefaultDisplay(); rotation = display.getRotation();// w ww. j a v a 2 s. co m int height; int width; if (Build.VERSION.SDK_INT < Build.VERSION_CODES.HONEYCOMB_MR2) { height = display.getHeight(); width = display.getWidth(); } else { Point size = new Point(); display.getSize(size); height = size.y; width = size.x; } switch (rotation) { case Surface.ROTATION_90: if (width > height) { setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE); } else { setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_REVERSE_PORTRAIT); } break; case Surface.ROTATION_180: if (height > width) { setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_REVERSE_PORTRAIT); } else { setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_REVERSE_LANDSCAPE); } break; case Surface.ROTATION_270: if (width > height) { setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_REVERSE_LANDSCAPE); } else { setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_PORTRAIT); } break; default: if (height > width) { setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_PORTRAIT); } else { setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE); } } }
From source file:research.dlsu.cacaoapp.Camera2BasicFragment.java
/** * Sets up member variables related to camera. * * @param width The width of available size for camera preview * @param height The height of available size for camera preview *///w w w . j a v a 2 s . c o m private void setUpCameraOutputs(int width, int height) { Activity activity = getActivity(); CameraManager manager = (CameraManager) activity.getSystemService(Context.CAMERA_SERVICE); try { for (String cameraId : manager.getCameraIdList()) { CameraCharacteristics characteristics = manager.getCameraCharacteristics(cameraId); // We don't use a front facing camera in this sample. Integer facing = characteristics.get(CameraCharacteristics.LENS_FACING); if (facing != null && facing == CameraCharacteristics.LENS_FACING_FRONT) { continue; } StreamConfigurationMap map = characteristics .get(CameraCharacteristics.SCALER_STREAM_CONFIGURATION_MAP); if (map == null) { continue; } // For still image captures, we use the largest available size. Size largest = Collections.max(Arrays.asList(map.getOutputSizes(ImageFormat.JPEG)), new CompareSizesByArea()); mImageReader = ImageReader.newInstance(largest.getWidth(), largest.getHeight(), ImageFormat.JPEG, /*maxImages*/2); mImageReader.setOnImageAvailableListener(mOnImageAvailableListener, mBackgroundHandler); // Find out if we need to swap dimension to get the preview size relative to sensor // coordinate. int displayRotation = activity.getWindowManager().getDefaultDisplay().getRotation(); //noinspection ConstantConditions mSensorOrientation = characteristics.get(CameraCharacteristics.SENSOR_ORIENTATION); boolean swappedDimensions = false; switch (displayRotation) { case Surface.ROTATION_0: case Surface.ROTATION_180: if (mSensorOrientation == 90 || mSensorOrientation == 270) { swappedDimensions = true; } break; case Surface.ROTATION_90: case Surface.ROTATION_270: if (mSensorOrientation == 0 || mSensorOrientation == 180) { swappedDimensions = true; } break; default: Log.e(TAG, "Display rotation is invalid: " + displayRotation); } Point displaySize = new Point(); activity.getWindowManager().getDefaultDisplay().getSize(displaySize); int rotatedPreviewWidth = width; int rotatedPreviewHeight = height; int maxPreviewWidth = displaySize.x; int maxPreviewHeight = displaySize.y; if (swappedDimensions) { rotatedPreviewWidth = height; rotatedPreviewHeight = width; maxPreviewWidth = displaySize.y; maxPreviewHeight = displaySize.x; } if (maxPreviewWidth > MAX_PREVIEW_WIDTH) { maxPreviewWidth = MAX_PREVIEW_WIDTH; } if (maxPreviewHeight > MAX_PREVIEW_HEIGHT) { maxPreviewHeight = MAX_PREVIEW_HEIGHT; } // Danger, W.R.! Attempting to use too large a preview size could exceed the camera // bus' bandwidth limitation, resulting in gorgeous previews but the storage of // garbage capture data. mPreviewSize = chooseOptimalSize(map.getOutputSizes(SurfaceTexture.class), rotatedPreviewWidth, rotatedPreviewHeight, maxPreviewWidth, maxPreviewHeight, largest); // We fit the aspect ratio of TextureView to the size of preview we picked. int orientation = getResources().getConfiguration().orientation; if (orientation == Configuration.ORIENTATION_LANDSCAPE) { mTextureView.setAspectRatio(mPreviewSize.getWidth(), mPreviewSize.getHeight()); } else { mTextureView.setAspectRatio(mPreviewSize.getHeight(), mPreviewSize.getWidth()); } // Check if the flash is supported. Boolean available = characteristics.get(CameraCharacteristics.FLASH_INFO_AVAILABLE); mFlashSupported = available == null ? false : available; mCameraId = cameraId; return; } } catch (CameraAccessException e) { e.printStackTrace(); } catch (NullPointerException e) { // Currently an NPE is thrown when the Camera2API is used but not supported on the // device this code runs. ErrorDialog.newInstance("Error. Camera2API is not supported on your device.") .show(getChildFragmentManager(), FRAGMENT_DIALOG); } }