private void caracteristicasCamera(
int width, int height) { // metodo responsavel por atribuir as caracteristicas das cameras
try {
for (String cameraId : manager.getCameraIdList()) {
CameraCharacteristics characteristics = manager.getCameraCharacteristics(cameraId);
StreamConfigurationMap map =
characteristics.get(CameraCharacteristics.SCALER_STREAM_CONFIGURATION_MAP);
if (map == null) {
continue;
}
// serve para atribuir o tamanho da imagem
Size largest =
Collections.max(
Arrays.asList(map.getOutputSizes(ImageFormat.JPEG)), new CompareSizesByArea());
imageReader =
ImageReader.newInstance(
largest.getWidth(), largest.getHeight(), ImageFormat.JPEG, /*maxImages*/ 2);
imageReader.setOnImageAvailableListener(mOnImageAvailableListener, backgroundHandler);
// textureView.setAspectRatio(
// previewSize.getHeight(), previewSize.getWidth());
return;
}
} catch (CameraAccessException e) {
e.printStackTrace();
} catch (NullPointerException e) {
informaErro
.newInstance(getString(R.string.camera_error))
.show(getChildFragmentManager(), FRAGMENT_DIALOG);
}
}
@Override
protected void onResume() {
super.onResume();
CameraManager manager = (CameraManager) this.getSystemService(Context.CAMERA_SERVICE);
if (manager == null) {
showToast(R.string.no_camera_manager);
} else {
try {
mCameraIds = manager.getCameraIdList();
boolean allCamerasAreLegacy = true;
for (String id : mCameraIds) {
CameraCharacteristics characteristics = manager.getCameraCharacteristics(id);
if (characteristics.get(CameraCharacteristics.INFO_SUPPORTED_HARDWARE_LEVEL)
!= CameraCharacteristics.INFO_SUPPORTED_HARDWARE_LEVEL_LEGACY) {
allCamerasAreLegacy = false;
break;
}
}
if (allCamerasAreLegacy) {
showToast(R.string.all_legacy_devices);
getPassButton().setEnabled(false);
}
} catch (CameraAccessException e) {
Toast.makeText(
ItsTestActivity.this,
"Received error from camera service while checking device capabilities: " + e,
Toast.LENGTH_SHORT)
.show();
}
IntentFilter filter = new IntentFilter(ACTION_ITS_RESULT);
registerReceiver(mSuccessReceiver, filter);
}
}
@TargetApi(Build.VERSION_CODES.LOLLIPOP)
public static void openCamera(CameraDevice.StateCallback stateCallback)
throws CameraAccessException {
Context context_holder = ApplicationContextProvider.getContext();
CameraManager manager = (CameraManager) context_holder.getSystemService(Context.CAMERA_SERVICE);
try {
String cameraId = manager.getCameraIdList()[0];
CameraCharacteristics characteristics = manager.getCameraCharacteristics(cameraId);
StreamConfigurationMap map =
characteristics.get(CameraCharacteristics.SCALER_STREAM_CONFIGURATION_MAP);
assert map != null;
manager.openCamera(cameraId, stateCallback, null);
} catch (CameraAccessException e) {
e.printStackTrace();
}
try {
Thread.sleep(100);
} catch (InterruptedException e) {
}
;
Log.e("camera", "Sleep, re-try");
}
/**
* 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
*/
private void setUpCameraOutputs(final int width, final int height) {
final Activity activity = getActivity();
final CameraManager manager = (CameraManager) activity.getSystemService(Context.CAMERA_SERVICE);
try {
for (final String cameraId : manager.getCameraIdList()) {
final CameraCharacteristics characteristics = manager.getCameraCharacteristics(cameraId);
// We don't use a front facing camera in this sample.
final Integer facing = characteristics.get(CameraCharacteristics.LENS_FACING);
if (facing != null && facing == CameraCharacteristics.LENS_FACING_FRONT) {
continue;
}
final StreamConfigurationMap map =
characteristics.get(CameraCharacteristics.SCALER_STREAM_CONFIGURATION_MAP);
if (map == null) {
continue;
}
// For still image captures, we use the largest available size.
final Size largest =
Collections.max(
Arrays.asList(map.getOutputSizes(ImageFormat.YUV_420_888)),
new CompareSizesByArea());
sensorOrientation = characteristics.get(CameraCharacteristics.SENSOR_ORIENTATION);
// 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.
previewSize =
chooseOptimalSize(
map.getOutputSizes(SurfaceTexture.class), inputSize, inputSize, largest);
// We fit the aspect ratio of TextureView to the size of preview we picked.
final int orientation = getResources().getConfiguration().orientation;
if (orientation == Configuration.ORIENTATION_LANDSCAPE) {
textureView.setAspectRatio(previewSize.getWidth(), previewSize.getHeight());
} else {
textureView.setAspectRatio(previewSize.getHeight(), previewSize.getWidth());
}
CameraConnectionFragment.this.cameraId = cameraId;
cameraConnectionCallback.onPreviewSizeChosen(previewSize, sensorOrientation);
return;
}
} catch (final CameraAccessException e) {
LOGGER.e(e, "Exception!");
} catch (final 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);
}
}
/**
* 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
*/
private void setUpCameraOutputs(String strCameraId, int width, int height) {
Activity activity = getActivity();
CameraManager manager = (CameraManager) activity.getSystemService(Context.CAMERA_SERVICE);
try {
for (String cameraId : manager.getCameraIdList()) {
if (!cameraId.equalsIgnoreCase(strCameraId)) continue;
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);
// 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), width, height, 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());
}
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);
}
}
private String getCameraId() throws CameraAccessException {
String[] ids = mCameraManager.getCameraIdList();
for (String id : ids) {
CameraCharacteristics c = mCameraManager.getCameraCharacteristics(id);
Boolean flashAvailable = c.get(CameraCharacteristics.FLASH_INFO_AVAILABLE);
Integer lensFacing = c.get(CameraCharacteristics.LENS_FACING);
if (flashAvailable != null
&& flashAvailable
&& lensFacing != null
&& lensFacing == CameraCharacteristics.LENS_FACING_BACK) {
return id;
}
}
return null;
}
@Override
protected void setUp() throws Exception {
super.setUp();
mContext = getActivity();
assertNotNull("Unable to get activity", mContext);
mCameraManager = (CameraManager) mContext.getSystemService(Context.CAMERA_SERVICE);
assertNotNull("Unable to get CameraManager", mCameraManager);
mCameraIds = mCameraManager.getCameraIdList();
assertNotNull("Unable to get camera ids", mCameraIds);
mHandlerThread = new HandlerThread(TAG);
mHandlerThread.start();
mHandler = new Handler(mHandlerThread.getLooper());
mCameraListener = new BlockingStateCallback();
Camera2MultiViewCtsActivity activity = (Camera2MultiViewCtsActivity) mContext;
mTextureView[0] = activity.getTextureView(0);
mTextureView[1] = activity.getTextureView(1);
assertNotNull("Unable to get texture view", mTextureView);
mCameraIdMap = new HashMap<String, Integer>();
int numCameras = mCameraIds.length;
mCameraHolders = new CameraHolder[numCameras];
for (int i = 0; i < numCameras; i++) {
mCameraHolders[i] = new CameraHolder(mCameraIds[i]);
mCameraIdMap.put(mCameraIds[i], i);
}
mWindowManager = (WindowManager) mContext.getSystemService(Context.WINDOW_SERVICE);
}
private void startCamera() {
try {
if (hasCameraPermission()) {
if (ActivityCompat.checkSelfPermission(this, Manifest.permission.CAMERA)
!= PackageManager.PERMISSION_GRANTED) {
// TODO: Consider calling
// ActivityCompat#requestPermissions
// here to request the missing permissions, and then overriding
// public void onRequestPermissionsResult(int requestCode, String[] permissions,
// int[] grantResults)
// to handle the case where the user grants the permission. See the documentation
// for ActivityCompat#requestPermissions for more details.
showTost("Can not access camera. Permission Denied");
return;
}
try {
cameraManager.openCamera(mCameraId, cameraStateCallback, mHandler);
} catch (SecurityException accessExc) {
accessExc.printStackTrace();
showTost("Could not access Camera, check app permissions");
}
}
} catch (Exception e) {
e.printStackTrace();
}
}
/** Opens the camera specified by {@link CameraConnectionFragment#cameraId}. */
private void openCamera(final int width, final int height) {
setUpCameraOutputs(width, height);
configureTransform(width, height);
final Activity activity = getActivity();
final CameraManager manager = (CameraManager) activity.getSystemService(Context.CAMERA_SERVICE);
try {
if (!cameraOpenCloseLock.tryAcquire(2500, TimeUnit.MILLISECONDS)) {
throw new RuntimeException("Time out waiting to lock camera opening.");
}
manager.openCamera(cameraId, stateCallback, backgroundHandler);
} catch (final CameraAccessException e) {
LOGGER.e(e, "Exception!");
} catch (final InterruptedException e) {
throw new RuntimeException("Interrupted while trying to lock camera opening.", e);
}
}
private void startDevice() throws CameraAccessException {
mTorchAppUid = Binder.getCallingUid();
final String cameraId = getCameraId();
if (DEBUG) Log.d(TAG, "startDevice(), cameraID: " + cameraId);
mTorchCameraId = Integer.valueOf(cameraId);
mOpeningCamera = true;
mCameraManager.openCamera(cameraId, mTorchCameraListener, mHandler);
}
private void setupCamera(int width, int height) {
try {
if (!mCameraOpenCloseLock.tryAcquire(2500, TimeUnit.MILLISECONDS)) {
throw new RuntimeException("Time out waiting to lock camera opening.");
}
for (String cameraId : cameraManager.getCameraIdList()) {
CameraCharacteristics characteristics = cameraManager.getCameraCharacteristics(cameraId);
if ((characteristics.get(CameraCharacteristics.LENS_FACING))
.equals(CameraCharacteristics.LENS_FACING_BACK)) {
StreamConfigurationMap configMap =
characteristics.get(CameraCharacteristics.SCALER_STREAM_CONFIGURATION_MAP);
Size largestImageSize =
Collections.max(
Arrays.asList(configMap.getOutputSizes(ImageFormat.YUV_420_888)),
new Comparator<Size>() {
@Override
public int compare(Size lhs, Size rhs) {
return Long.signum(
lhs.getWidth() * lhs.getWidth() - rhs.getHeight() * rhs.getWidth());
// return 0;
}
});
imgReader =
ImageReader.newInstance(
largestImageSize.getWidth(),
largestImageSize.getHeight(),
ImageFormat.YUV_420_888,
60 * 600);
imgReader.setOnImageAvailableListener(barcodeChecker, mHandler);
prefferedBufferSize =
getBestSize(configMap.getOutputSizes(SurfaceTexture.class), width, height);
mCameraId = cameraId;
return;
}
}
} catch (Exception e) {
e.printStackTrace();
}
}
/** Opens the camera specified by {@link Camera2BasicFragment#mCameraId}. */
private void openCamera(String cameraId, int width, int height) {
// if (getActivity().checkSelfPermission(Manifest.permission.CAMERA)
// != PackageManager.PERMISSION_GRANTED) {
// requestCameraPermission();
// return;
// }
setUpCameraOutputs(cameraId, width, height);
configureTransform(width, height);
Activity activity = getActivity();
CameraManager manager = (CameraManager) activity.getSystemService(Context.CAMERA_SERVICE);
try {
if (!mCameraOpenCloseLock.tryAcquire(2500, TimeUnit.MILLISECONDS)) {
throw new RuntimeException("Time out waiting to lock camera opening.");
}
manager.openCamera(mCameraId, mStateCallback, mBackgroundHandler);
} catch (CameraAccessException e) {
e.printStackTrace();
} catch (InterruptedException e) {
throw new RuntimeException("Interrupted while trying to lock camera opening.", e);
}
}
/** Opens the camera specified by {@link Camera2BasicFragment#mCameraId}. */
private void openCamera(int width, int height) {
setUpCameraOutputs(width, height);
configureTransform(width, height);
Activity activity = getActivity();
CameraManager manager = (CameraManager) activity.getSystemService(Context.CAMERA_SERVICE);
try {
if (!mCameraOpenCloseLock.tryAcquire(3500, TimeUnit.MILLISECONDS)) {
Toast.makeText(getActivity(), "Time out waiting to open camera", Toast.LENGTH_SHORT).show();
// throw new RuntimeException("Time out waiting to lock camera opening.");
}
// if(mCameraId.equals("0")) showToast("Front facing camera not working");
// else
manager.openCamera(mCameraId, mStateCallback, mBackgroundHandler);
} catch (CameraAccessException e) {
e.printStackTrace();
} catch (InterruptedException e) {
throw new RuntimeException("Interrupted while trying to lock camera opening.", e);
} catch (RuntimeException e) {
e.printStackTrace();
}
}
public void initialize() {
try {
mTorchCameraId = Integer.valueOf(getCameraId());
} catch (Throwable e) {
Log.e(TAG, "Couldn't initialize.", e);
return;
}
if (mTorchCameraId != -1) {
ensureHandler();
if (mUseCameraInterface) {
mCameraManager.registerAvailabilityCallback(mAvailabilityCallback, mHandler);
}
}
}
private Size getSmallestSize(String cameraId) throws CameraAccessException {
Size[] outputSizes =
mCameraManager
.getCameraCharacteristics(cameraId)
.get(CameraCharacteristics.SCALER_STREAM_CONFIGURATION_MAP)
.getOutputSizes(SurfaceTexture.class);
if (outputSizes == null || outputSizes.length == 0) {
throw new IllegalStateException("Camera " + cameraId + "doesn't support any outputSize.");
}
Size chosen = outputSizes[0];
for (Size s : outputSizes) {
if (chosen.getWidth() >= s.getWidth() && chosen.getHeight() >= s.getHeight()) {
chosen = s;
}
}
return chosen;
}
// metodo responsavel por abrir a camera
private void openCamera(int width, int height) {
if (ContextCompat.checkSelfPermission(
getActivity(),
Manifest.permission.CAMERA) // verifica se tem permissao para usar a camera
!= PackageManager.PERMISSION_GRANTED) {
requestCameraPermission();
return;
}
caracteristicasCamera(width, height); // informo as dimensoes da tela
try {
manager.openCamera(
cameraEscolhida, cameraDeviceStateCAllback, backgroundHandler); // abre a camera
} catch (CameraAccessException e) {
e.printStackTrace();
}
}
@TargetApi(CAMERA_2_API_LIMIT)
private void startCamera2(int width, int height) {
lawg.d("startCamera2()");
setUpCameraOutputs(width, height);
configureTransform(width, height);
mCamera2Manager = (CameraManager) getSystemService(Context.CAMERA_SERVICE);
try {
if (!mCameraOpenCloseLock.tryAcquire(2500, TimeUnit.MILLISECONDS)) {
throw new RuntimeException("Time out waiting to lock camera opening.");
}
mCamera2Manager.openCamera(mCameraId, mCamera2StateCallback, mBackgroundHandler);
} catch (CameraAccessException e) {
e.printStackTrace();
} catch (InterruptedException e) {
throw new RuntimeException("Interrupted while trying to lock camera opening.", e);
} catch (SecurityException se) {
lawg.e("SecurityException " + se);
se.printStackTrace();
}
}
@Override
public View onCreateView(
LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
// Inflate the layout for this fragment
View myView = inflater.inflate(R.layout.fragment_cam2, container, false);
preview = (FrameLayout) myView.findViewById(R.id.camera2_preview);
// we have to pass the camera id that we want to use to the surfaceview
CameraManager manager = (CameraManager) getActivity().getSystemService(Context.CAMERA_SERVICE);
try {
String cameraId = manager.getCameraIdList()[0];
mPreview = new Camera2Preview(getActivity().getApplicationContext(), cameraId);
preview.addView(mPreview);
} catch (CameraAccessException e) {
Log.v(TAG, "Failed to get a camera ID!");
e.printStackTrace();
}
// Add a listener to the Capture button
btn_takepicture = (Button) myView.findViewById(R.id.btn_takepicture);
btn_takepicture.setOnClickListener(
new View.OnClickListener() {
@Override
public void onClick(View v) {
if (mCapture
== null) // While I would like the declare this earlier, the camara is not setup
// yet, so wait until now.
mCapture = new Camera2CapturePic(getActivity().getApplicationContext(), mPreview);
// get an image from the camera
if (mCapture.reader != null) { // I'm sure it's setup correctly if reader is not null.
mCapture.TakePicture(getOutputMediaFile(MEDIA_TYPE_IMAGE));
}
}
});
btn_takevideo = (Button) myView.findViewById(R.id.btn_takevideo);
btn_takevideo.setOnClickListener(
new View.OnClickListener() {
@Override
public void onClick(View v) {
if (mVideo
== null) // While I would like the declare this earlier, the camara is not setup
// yet, so wait until now.
mVideo = new Camera2CaptureVid((AppCompatActivity) getActivity(), mPreview);
if (mIsRecordingVideo == false) { // about to take a video
mIsRecordingVideo = true;
btn_takevideo.setText("Stop Recording");
mVideo.startRecordingVideo(getOutputMediaFile(MEDIA_TYPE_VIDEO));
} else {
mVideo.stopRecordingVideo();
mIsRecordingVideo = false;
btn_takevideo.setText("Start Recording");
}
}
});
// and add video when I know how to do it.
return myView;
}
private static void take_photo_new(
CameraDevice cameraDevice, ImageView imageviewer_new_picture, String file_name) {
Context context_holder = ApplicationContextProvider.getContext();
CameraManager manager = (CameraManager) context_holder.getSystemService(Context.CAMERA_SERVICE);
HandlerThread mBackgroundThread;
mBackgroundThread = new HandlerThread("Camera Background");
mBackgroundThread.start();
final Handler mBackgroundHandler = new Handler(mBackgroundThread.getLooper());
try {
CameraCharacteristics characteristics =
manager.getCameraCharacteristics(cameraDevice.getId());
Size[] jpegSizes = null;
if (characteristics != null) {
jpegSizes =
characteristics
.get(CameraCharacteristics.SCALER_STREAM_CONFIGURATION_MAP)
.getOutputSizes(ImageFormat.JPEG);
}
int width = 640;
int height = 480;
if (jpegSizes != null && 0 < jpegSizes.length) {
width = jpegSizes[0].getWidth();
height = jpegSizes[0].getHeight();
}
ImageReader reader = ImageReader.newInstance((width + 1), (height + 1), ImageFormat.JPEG, 1);
final CaptureRequest.Builder captureBuilder =
cameraDevice.createCaptureRequest(CameraDevice.TEMPLATE_STILL_CAPTURE);
captureBuilder.addTarget(reader.getSurface());
captureBuilder.set(CaptureRequest.CONTROL_MODE, CameraMetadata.CONTROL_MODE_AUTO);
captureBuilder.set(
CaptureRequest.COLOR_CORRECTION_MODE, CameraMetadata.COLOR_CORRECTION_MODE_FAST);
captureBuilder.set(CaptureRequest.FLASH_MODE, CameraMetadata.FLASH_MODE_OFF);
captureBuilder.set(CaptureRequest.JPEG_THUMBNAIL_QUALITY, null);
List<Surface> outputSurfaces = new ArrayList<Surface>(2);
outputSurfaces.add(reader.getSurface());
captureBuilder.build();
cameraDevice.createCaptureSession(
outputSurfaces,
new CameraCaptureSession.StateCallback() {
@Override
public void onConfigured(CameraCaptureSession session) {
try {
session.capture(captureBuilder.build(), null, null);
} catch (CameraAccessException e) {
e.printStackTrace();
}
}
@Override
public void onConfigureFailed(CameraCaptureSession session) {}
},
mBackgroundHandler);
Log.e("camera", "take picture... sleep");
try {
Thread.sleep(2000);
} catch (InterruptedException e) {
}
byte[] bytes;
Image image = null;
try {
// Log.e("camera", " reader"+reader.getHeight());
image = reader.acquireLatestImage();
image.getFormat();
ByteBuffer buffer = image.getPlanes()[0].getBuffer();
bytes = new byte[buffer.capacity()];
buffer.get(bytes);
} finally {
if (image != null) {
image.close();
}
}
// String file_name = "curent_photo";
FileOutputStream out_put_stream = null;
try {
out_put_stream =
ApplicationContextProvider.getContext()
.openFileOutput(
file_name + ".jpg", ApplicationContextProvider.getContext().MODE_PRIVATE);
} catch (IOException exception) {
exception.printStackTrace();
}
try {
out_put_stream.write(bytes);
Log.e("camera", "saved picture! " + file_name);
if (imageviewer_new_picture != null) {
ImageView cap_picture = (ImageView) imageviewer_new_picture;
Bitmap bitmap_found = FileIO.loadBMPPrivate(file_name, Bitmap.CompressFormat.JPEG);
cap_picture.setImageBitmap(bitmap_found);
}
} catch (IOException e) {
e.printStackTrace();
} finally {
if (null != out_put_stream) {
try {
out_put_stream.close();
} catch (IOException e) {
e.printStackTrace();
}
}
closeCamera(cameraDevice);
}
} catch (CameraAccessException e) {
e.printStackTrace();
}
}
/**
* 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
*/
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(getString(R.string.camera_error))
.show(getChildFragmentManager(), FRAGMENT_DIALOG);
}
}
private void verificaCameras() throws CameraAccessException { // verifica as
Activity activity = getActivity();
CameraManager manager = (CameraManager) activity.getSystemService(Context.CAMERA_SERVICE);
idCameras = manager.getCameraIdList();
}
