/** Uninitialize camera. */
private void uninitializeCamera() {
// - If camera is initialized, uninitialied it.
if (mEasyCamera != null) {
mEasyCamera.stopPreview();
mEasyCamera.close();
}
}
@Override
public void surfaceDestroyed(SurfaceHolder surfaceHolder) {
// our app has only one screen, so we'll destroy the camera in the surface
// if you are unsing with more screens, please move this code your activity
mCamera.stopPreview();
mCamera.close();
}
@Override
public void surfaceChanged(SurfaceHolder surfaceHolder, int i, int i2, int i3) {
Log.e("ok", "surfaceChanged => w=" + i2 + ", h=" + i3);
// before changing the application orientation, you need to stop the preview, rotate and then
// start it again
if (surfaceHolder.getSurface() == null) // check if the surface is ready to receive camera data
return;
try {
mCamera.stopPreview();
} catch (Exception e) {
// this will happen when you are trying the camera if it's not running
}
// now, recreate the camera preview
try {
Camera.Parameters parameters = mCamera.getParameters();
List<String> focusModes = parameters.getSupportedFocusModes();
if (focusModes.contains(Camera.Parameters.FOCUS_MODE_CONTINUOUS_VIDEO)) {
parameters.setFocusMode(Camera.Parameters.FOCUS_MODE_CONTINUOUS_VIDEO);
}
parameters.setPreviewSize(mPreviewSize.width, mPreviewSize.height);
mCamera.setParameters(parameters);
mCamera.setDisplayOrientation(90);
mCamera.startPreview(mHolder);
} catch (IOException e) {
Log.d("ERROR", "Camera error on surfaceChanged " + e.getMessage());
}
}
/** Initialize camera with all good paramters. */
private void initializeCamera() {
// - Open camera.
mEasyCamera = DefaultEasyCamera.open();
// - Make sure preview is not started.
mEasyCamera.stopPreview();
// - Set good parameters.
Camera.Parameters params = mEasyCamera.getParameters();
params.setFocusMode(Camera.Parameters.FOCUS_MODE_CONTINUOUS_PICTURE);
mEasyCamera.setParameters(params);
mEasyCamera.setDisplayOrientation(90);
}
@Override
public void onCropping() {
// - Update snap icon, display progress circle and stop preview.
mSnapButton.setImageResource(R.drawable.ic_visibility_white_24dp);
mFabProgressCircle.show();
mEasyCamera.stopPreview();
}
@SuppressWarnings("deprecation")
public EasyCameraView(Context context, EasyCamera camera) {
super(context);
final Context context1 = getContext();
mCamera = camera;
mCamera.setDisplayOrientation(90);
mSupportedPreviewSizes = mCamera.getParameters().getSupportedPreviewSizes();
for (Camera.Size str : mSupportedPreviewSizes) Log.e(TAG, str.width + "/" + str.height);
// get the holder and set this class as the callback, so we can get camera data here
mHolder = getHolder();
mHolder.addCallback(this);
mHolder.setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS);
callback =
new PictureCallback() {
public void onPictureTaken(byte[] data, EasyCamera.CameraActions actions) {
Log.d("Log", "onPictureTaken - wrote bytes: " + data.length);
File pictureFileDir = getDir();
if (!pictureFileDir.exists() && !pictureFileDir.mkdirs()) {
Log.d("Log", "Can't create directory to save image.");
return;
}
SimpleDateFormat dateFormat = new SimpleDateFormat("yyyymmddhhmmss");
String date = dateFormat.format(new Date());
String photoFile = "Picture_" + date + ".jpg";
String filename = pictureFileDir.getPath() + File.separator + photoFile;
File pictureFile = new File(filename);
try {
FileOutputStream fos = new FileOutputStream(pictureFile);
fos.write(data);
fos.close();
Toast.makeText(context1, "New Image saved:" + filename, Toast.LENGTH_LONG).show();
Log.d("Log", "New Image saved:" + filename);
} catch (Exception error) {
Log.d("Log", "File" + filename + "not saved: " + error.getMessage());
}
}
};
}
@Override
public void surfaceCreated(SurfaceHolder surfaceHolder) {
try {
// when the surface is created, we can set the camera to draw images in this surfaceholder
actions = mCamera.startPreview(mHolder);
} catch (IOException e) {
Log.d("ERROR", "Camera error on surfaceCreated " + e.getMessage());
}
}
/**
* Initialize preview with good ratio.
*
* @param surfaceTexture
*/
private void initializePreview(final SurfaceTexture surfaceTexture) {
try {
// - Retrieve camera ratio then fit preview and cropper.
final float ratio = getCameraPreviewRatio();
updatePreviewRatio(ratio);
fitCropImageView(ratio);
// - If snap button is still enable, start preview.
if (mSnapButton.isEnabled()) {
mEasyCamera.startPreview(surfaceTexture);
}
} catch (final Throwable cause) {
// - An exception may be thrown when camera is unavailable.
displayCameraError(cause);
}
}
/**
* Get camera preview's ratio.
*
* @return Preview's ratio.
*/
private float getCameraPreviewRatio() {
final Camera.Size size = mEasyCamera.getParameters().getPreviewSize();
return (float) size.width / size.height;
}
