public CustomeCamera(
Activity activity, FrameLayout cameraPreviewLayout, Integer size, Integer quality)
throws Exception {
this.activity = activity;
this.size = size;
this.quality = quality;
// Create an instance of Camera
try {
mCamera = getCameraInstance();
} catch (Exception e) {
throw new Exception(e.getMessage());
}
try {
mCamera.setDisplayOrientation(90);
} catch (Exception e) {
Log.d(TAG, e.getMessage());
}
Camera.CameraInfo info = new Camera.CameraInfo();
Camera.getCameraInfo(Camera.CameraInfo.CAMERA_FACING_BACK, info);
int rotation = activity.getWindowManager().getDefaultDisplay().getRotation();
int degrees = 0;
switch (rotation) {
case Surface.ROTATION_0:
degrees = 0;
break; // Natural orientation
case Surface.ROTATION_90:
degrees = 90;
break; // Landscape left
case Surface.ROTATION_180:
degrees = 180;
break; // Upside down
case Surface.ROTATION_270:
degrees = 270;
break; // Landscape right
}
int rotate = (info.orientation - degrees + 360) % 360;
// STEP #2: Set the 'rotation' parameter
Camera.Parameters params = mCamera.getParameters();
params.setRotation(rotate);
List<String> focusModes = params.getSupportedFocusModes();
if (focusModes.contains(Camera.Parameters.FOCUS_MODE_AUTO)) {
params.setFocusMode(Camera.Parameters.FOCUS_MODE_AUTO);
}
if (params.getFocusMode() == Camera.Parameters.FOCUS_MODE_AUTO) autoFocusEnabled = true;
else autoFocusEnabled = false;
// TODO for the test
autoFocusEnabled = false;
mCamera.setParameters(params);
// Create our Preview view and set it as the content of our activity.
mPreview = new CameraPreview(activity, mCamera);
cameraPreviewLayout.addView(mPreview);
}
public static void setFocus(
Camera.Parameters parameters,
boolean autoFocus,
boolean disableContinuous,
boolean safeMode) {
List<String> supportedFocusModes = parameters.getSupportedFocusModes();
String focusMode = null;
if (autoFocus) {
if (safeMode || disableContinuous) {
focusMode =
findSettableValue("focus mode", supportedFocusModes, Camera.Parameters.FOCUS_MODE_AUTO);
} else {
focusMode =
findSettableValue(
"focus mode",
supportedFocusModes,
Camera.Parameters.FOCUS_MODE_CONTINUOUS_PICTURE,
Camera.Parameters.FOCUS_MODE_CONTINUOUS_VIDEO,
Camera.Parameters.FOCUS_MODE_AUTO);
}
}
// Maybe selected auto-focus but not available, so fall through here:
if (!safeMode && focusMode == null) {
focusMode =
findSettableValue(
"focus mode",
supportedFocusModes,
Camera.Parameters.FOCUS_MODE_MACRO,
Camera.Parameters.FOCUS_MODE_EDOF);
}
if (focusMode != null) {
if (focusMode.equals(parameters.getFocusMode())) {
Log.i(TAG, "Focus mode already set to " + focusMode);
} else {
parameters.setFocusMode(focusMode);
}
}
}
/**
* Opens the camera and applies the user settings.
*
* @throws RuntimeException if the method fails
*/
@SuppressLint("InlinedApi")
private Camera createCamera() {
int requestedCameraId = getIdForRequestedCamera(mFacing);
if (requestedCameraId == -1) {
throw new RuntimeException(mContext.getString(R.string.no_requested_camera));
}
Camera camera = Camera.open(requestedCameraId);
SizePair sizePair =
selectSizePair(camera, mRequestedPreviewWidth, mRequestedPreviewHeight, mContext);
if (sizePair == null) {
throw new RuntimeException(mContext.getString(R.string.no_suitable_preview_size));
}
Size pictureSize = sizePair.pictureSize();
mPreviewSize = sizePair.previewSize();
int[] previewFpsRange = selectPreviewFpsRange(camera, mRequestedFps);
if (previewFpsRange == null) {
throw new RuntimeException(mContext.getString(R.string.no_suitable_frames_per_second));
}
Camera.Parameters parameters = camera.getParameters();
parameters.setPictureSize(pictureSize.getWidth(), pictureSize.getHeight());
parameters.setPreviewSize(mPreviewSize.getWidth(), mPreviewSize.getHeight());
parameters.setPreviewFpsRange(
previewFpsRange[Camera.Parameters.PREVIEW_FPS_MIN_INDEX],
previewFpsRange[Camera.Parameters.PREVIEW_FPS_MAX_INDEX]);
parameters.setPreviewFormat(ImageFormat.NV21);
setRotation(camera, parameters, requestedCameraId);
if (mFocusMode != null) {
if (parameters.getSupportedFocusModes().contains(mFocusMode)) {
parameters.setFocusMode(mFocusMode);
} else {
Log.i(
TAG,
mContext.getString(R.string.camera_focus_mode)
+ mFocusMode
+ mContext.getString(R.string.not_supported));
}
}
// setting mFocusMode to the one set in the params
mFocusMode = parameters.getFocusMode();
if (mFlashMode != null) {
if (parameters.getSupportedFlashModes().contains(mFlashMode)) {
parameters.setFlashMode(mFlashMode);
} else {
Log.i(
TAG,
mContext.getString(R.string.flash_mode)
+ mFlashMode
+ mContext.getString(R.string.not_supported));
}
}
// setting mFlashMode to the one set in the params
mFlashMode = parameters.getFlashMode();
camera.setParameters(parameters);
// Four frame buffers are needed for working with the camera:
//
// one for the frame that is currently being executed upon in doing detection
// one for the next pending frame to process immediately upon completing detection
// two for the frames that the camera uses to populate future preview images
camera.setPreviewCallbackWithBuffer(new CameraPreviewCallback());
camera.addCallbackBuffer(createPreviewBuffer(mPreviewSize));
camera.addCallbackBuffer(createPreviewBuffer(mPreviewSize));
camera.addCallbackBuffer(createPreviewBuffer(mPreviewSize));
camera.addCallbackBuffer(createPreviewBuffer(mPreviewSize));
return camera;
}