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Je travaille sur une application qui implique une caméra manuelle dans laquelle elle possède son propre bouton flash qu'elle fait passer de OFF à ON à AUTO. J'appelle une instruction switch avec un onClickListener pour le faire.Mode flash sélectionné mais camera2 ne capture pas d'image avec ces modes de flash
private void setFlash() {
switch (mFlashMode) {
case CONTROL_AE_MODE_OFF:
mCaptureRequestBuilder.set(CaptureRequest.CONTROL_AE_MODE, CameraMetadata.CONTROL_AE_MODE_ON);
useFlashButton.setImageResource(R.drawable.flash_on);
mFlashMode = CONTROL_AE_MODE_ON;
break;
case CONTROL_AE_MODE_ON:
mCaptureRequestBuilder.set(CaptureRequest.CONTROL_AE_MODE, CameraMetadata.CONTROL_AE_MODE_ON);
useFlashButton.setImageResource(R.drawable.flash_automatic);
mFlashMode = CONTROL_AE_MODE_ON_AUTO_FLASH;
break;
case CONTROL_AE_MODE_ON_AUTO_FLASH:
mCaptureRequestBuilder.set(CaptureRequest.CONTROL_AE_MODE, CameraMetadata.CONTROL_AE_MODE_OFF);
useFlashButton.setImageResource(R.drawable.flash_off);
mFlashMode = CONTROL_AE_MODE_OFF;
break;
}
}
Alors ce que je dois faire maintenant est en fonction du mode flash est sélectionné, l'appareil photo capture de façon appropriée. pour le moment quel que soit le mode que je sélectionne, aucun flash ne se produit.
Que puis-je faire?
plus de code pour aider.
protected void onImageCaptureClick() {
if (null == mCameraDevice) {
Log.e(TAG, "cameraDevice is null");
return;
}
CameraManager manager = (CameraManager) getSystemService(Context.CAMERA_SERVICE);
try {
CameraCharacteristics characteristics = manager.getCameraCharacteristics(mCameraDevice.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, height, ImageFormat.JPEG, 1);
List<Surface> outputSurfaces = new ArrayList<>(2);
outputSurfaces.add(reader.getSurface());
outputSurfaces.add(new Surface(mTextureView.getSurfaceTexture()));
final CaptureRequest.Builder captureBuilder = mCameraDevice.createCaptureRequest(CameraDevice.TEMPLATE_STILL_CAPTURE);
captureBuilder.addTarget(reader.getSurface());
// Use the same AE and AF modes as the preview.
captureBuilder.set(CaptureRequest.SCALER_CROP_REGION, zoom);
// Orientation
int rotation = getWindowManager().getDefaultDisplay().getRotation();
captureBuilder.set(CaptureRequest.JPEG_ORIENTATION, ORIENTATIONS.get(rotation));
final File file = new File(_pictureUri.getPath());
ImageReader.OnImageAvailableListener readerListener = new ImageReader.OnImageAvailableListener() {
@Override
public void onImageAvailable(ImageReader reader) {
Image image = null;
try {
image = reader.acquireLatestImage();
ByteBuffer buffer = image.getPlanes()[0].getBuffer();
byte[] bytes = new byte[buffer.capacity()];
buffer.get(bytes);
save(bytes);
} catch (FileNotFoundException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
} finally {
if (image != null) {
image.close();
}
}
}
private void save(byte[] bytes) throws IOException {
OutputStream output = null;
try {
output = new FileOutputStream(file);
output.write(bytes);
} finally {
if (null != output) {
output.close();
}
}
}
};
reader.setOnImageAvailableListener(readerListener, mBackgroundHandler);
final CameraCaptureSession.CaptureCallback captureListener = new CameraCaptureSession.CaptureCallback() {
//byte[] data;
@Override
public void onCaptureCompleted(@NonNull CameraCaptureSession session, @NonNull CaptureRequest request, @NonNull TotalCaptureResult result) {
super.onCaptureCompleted(session, request, result);
Intent intent = new Intent (CameraActivity.this, CameraReviewPhotoActivity.class);
intent.putExtra (MediaStore.EXTRA_OUTPUT, _pictureUri);
startActivityForResult (intent, CameraActivity.kRequest_Code_Approve_Image);
}
};
mCameraDevice.createCaptureSession(outputSurfaces, new CameraCaptureSession.StateCallback() {
@Override
public void onConfigured(CameraCaptureSession session) {
try {
session.capture(captureBuilder.build(), captureListener, mBackgroundHandler);
} catch (CameraAccessException e) {
e.printStackTrace();
}
}
@Override
public void onConfigureFailed(CameraCaptureSession session) {
}
}, mBackgroundHandler);
} catch (CameraAccessException e) {
e.printStackTrace();
}
}
private void runPrecaptureSequence() {
try {
setFlash();
mCaptureRequestBuilder.set(CaptureRequest.CONTROL_AE_PRECAPTURE_TRIGGER,
CaptureRequest.CONTROL_AE_PRECAPTURE_TRIGGER_START);
mState = STATE_WAITING_PRE_CAPTURE;
mCameraCaptureSessions.capture(mCaptureRequestBuilder.build(), mCaptureCallback,
mBackgroundHandler);
} catch (CameraAccessException e) {
e.printStackTrace();
}
}
Merci Sergio ! ceci a aidé!: DI l'apprécie! –