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I'm creating an app which supports deprecated and new camera API. The first one works like a charm but i'm struggling with Camera2 API. In a phase of testing I've noticed strange behaviour. Testing device is Samsung Galaxy S5 with android 6.0.1 When i press the Power/End key and then go back to application this is what I get(it does not happen everytime):
03-12 16:14:32.704 24117-24117/pl.tripper.tripper E/MainActivity: onPause
03-12 16:14:32.774 24117-24128/pl.tripper.tripper E/BufferQueueProducer: [SurfaceTexture-1-24117-2] dequeueBuffer: BufferQueue has been abandoned
03-12 16:14:32.784 24117-24145/pl.tripper.tripper E/BufferQueueProducer: [SurfaceTexture-1-24117-2] queueBuffer: BufferQueue has been abandoned
03-12 16:14:33.044 24117-24128/pl.tripper.tripper E/BufferQueueProducer: [SurfaceTexture-1-24117-2] cancelBuffer: BufferQueue has been abandoned
03-12 16:14:33.044 24117-24145/pl.tripper.tripper E/BufferQueueProducer: [SurfaceTexture-1-24117-2] cancelBuffer: BufferQueue has been abandoned
03-12 16:14:33.054 24117-24129/pl.tripper.tripper E/BufferQueueProducer: [SurfaceTexture-1-24117-2] cancelBuffer: BufferQueue has been abandoned
03-12 16:14:33.054 24117-24128/pl.tripper.tripper E/BufferQueueProducer: [SurfaceTexture-1-24117-2] cancelBuffer: BufferQueue has been abandoned
03-12 16:14:33.264 24117-24117/pl.tripper.tripper E/CameraNewApi: cameraComponentsReleased
03-12 16:14:33.264 24117-24117/pl.tripper.tripper E/CameraNewApi: StopCameraThread
03-12 16:14:33.264 24117-24117/pl.tripper.tripper E/CameraApiManager: cameraPreviewRemoved
03-12 16:14:33.264 24117-24117/pl.tripper.tripper E/CameraNewApi: onSurfaceDestroyed
03-12 16:14:33.634 24117-24117/pl.tripper.tripper E/MainActivity: onCreate
03-12 16:14:33.634 24117-24117/pl.tripper.tripper E/MainActivity: onResume
03-12 16:14:33.634 24117-24117/pl.tripper.tripper E/CameraNewApi: startCameraThread
03-12 16:14:33.634 24117-24117/pl.tripper.tripper E/CameraApiManager: cameraPreviewCreated
03-12 16:14:33.644 24117-24117/pl.tripper.tripper E/CameraNewApi: initCamera
03-12 16:14:33.674 24117-24117/pl.tripper.tripper E/CameraNewApi: onSurfaceCreated
03-12 16:14:33.674 24117-24117/pl.tripper.tripper E/CameraNewApi: openCamera
03-12 16:14:33.914 24117-24117/pl.tripper.tripper E/CameraNewApi: onSurfaceChanged
03-12 16:14:33.914 24117-25053/pl.tripper.tripper E/CameraNewApi: onOpened
03-12 16:14:33.914 24117-25053/pl.tripper.tripper E/CameraNewApi: createCameraPreview
03-12 16:14:33.934 24117-24117/pl.tripper.tripper E/MainActivity: onPause
03-12 16:14:34.174 24117-24117/pl.tripper.tripper E/CameraNewApi: cameraComponentsReleased
03-12 16:14:34.174 24117-25053/pl.tripper.tripper E/CameraNewApi: onConfigured
03-12 16:14:34.174 24117-24117/pl.tripper.tripper E/CameraNewApi: StopCameraThread
03-12 16:14:34.174 24117-24117/pl.tripper.tripper E/CameraApiManager: cameraPreviewRemoved
03-12 16:14:34.184 24117-24117/pl.tripper.tripper E/CameraNewApi: onSurfaceDestroyed
03-12 16:14:34.914 24117-24117/pl.tripper.tripper E/MainActivity: onResume
03-12 16:14:34.914 24117-24117/pl.tripper.tripper E/CameraNewApi: startCameraThread
03-12 16:14:34.924 24117-24117/pl.tripper.tripper E/CameraApiManager: cameraPreviewCreated
03-12 16:14:34.924 24117-24117/pl.tripper.tripper E/CameraNewApi: initCamera
03-12 16:14:34.964 24117-24117/pl.tripper.tripper E/CameraNewApi: onSurfaceCreated
03-12 16:14:34.964 24117-24117/pl.tripper.tripper E/CameraNewApi: openCamera
03-12 16:14:35.294 24117-24117/pl.tripper.tripper E/CameraNewApi: onSurfaceChanged
03-12 16:14:35.294 24117-25121/pl.tripper.tripper E/CameraNewApi: onOpened
03-12 16:14:35.294 24117-25121/pl.tripper.tripper E/CameraNewApi: createCameraPreview
03-12 16:14:35.354 24117-24117/pl.tripper.tripper E/CameraNewApi: onSurfaceChanged
03-12 16:14:35.374 24117-24117/pl.tripper.tripper E/MainActivity: onPause
03-12 16:14:35.384 24117-25121/pl.tripper.tripper E/CameraNewApi: onConfigured
03-12 16:14:35.594 24117-24117/pl.tripper.tripper E/CameraNewApi: cameraComponentsReleased
03-12 16:14:35.594 24117-25121/pl.tripper.tripper E/CameraNewApi: Session was closed or camera device has been closed.
java.lang.IllegalStateException: CameraDevice was already closed
at android.hardware.camera2.impl.CameraDeviceImpl.checkIfCameraClosedOrInError(CameraDeviceImpl.java:1997)
at android.hardware.camera2.impl.CameraDeviceImpl.submitCaptureRequest(CameraDeviceImpl.java:844)
at android.hardware.camera2.impl.CameraDeviceImpl.setRepeatingRequest(CameraDeviceImpl.java:899)
at android.hardware.camera2.impl.CameraCaptureSessionImpl.setRepeatingRequest(CameraCaptureSessionImpl.java:236)
at pl.tripper.tripper.camera.CameraNewApi$2.onConfigured(CameraNewApi.java:107)
at java.lang.reflect.Method.invoke(Native Method)
at android.hardware.camera2.dispatch.InvokeDispatcher.dispatch(InvokeDispatcher.java:39)
at android.hardware.camera2.dispatch.HandlerDispatcher$1.run(HandlerDispatcher.java:65)
at android.os.Handler.handleCallback(Handler.java:739)
at android.os.Handler.dispatchMessage(Handler.java:95)
at android.os.Looper.loop(Looper.java:158)
at android.os.HandlerThread.run(HandlerThread.java:61)
03-12 16:14:35.594 24117-24117/pl.tripper.tripper E/CameraNewApi: StopCameraThread
03-12 16:14:35.594 24117-25121/pl.tripper.tripper E/CameraNewApi: cameraComponentsReleased
03-12 16:14:35.594 24117-24117/pl.tripper.tripper E/CameraApiManager: cameraPreviewRemoved
03-12 16:14:35.604 24117-24117/pl.tripper.tripper E/CameraNewApi: onSurfaceDestroyed
03-12 16:14:35.644 24117-24117/pl.tripper.tripper E/MainActivity: onCreate
03-12 16:14:35.654 24117-24117/pl.tripper.tripper E/MainActivity: onResume
03-12 16:14:35.654 24117-24117/pl.tripper.tripper E/CameraNewApi: startCameraThread
03-12 16:14:35.654 24117-24117/pl.tripper.tripper E/CameraApiManager: cameraPreviewCreated
03-12 16:14:35.654 24117-24117/pl.tripper.tripper E/CameraNewApi: initCamera
03-12 16:14:35.694 24117-24117/pl.tripper.tripper E/CameraNewApi: onSurfaceCreated
03-12 16:14:35.694 24117-24117/pl.tripper.tripper E/CameraNewApi: openCamera
03-12 16:14:35.934 24117-24117/pl.tripper.tripper E/CameraNewApi: onSurfaceChanged
03-12 16:14:35.934 24117-25184/pl.tripper.tripper E/CameraNewApi: onOpened
03-12 16:14:35.934 24117-25184/pl.tripper.tripper E/CameraNewApi: createCameraPreview
03-12 16:14:35.944 24117-24117/pl.tripper.tripper E/ViewRootImpl: sendUserActionEvent() mView == null
03-12 16:14:35.944 24117-24117/pl.tripper.tripper E/ViewRootImpl: sendUserActionEvent() mView == null
03-12 16:14:35.994 24117-25184/pl.tripper.tripper E/CameraNewApi: onConfigured
Added some error logs when methods are called. I know that cameraDevice is null when session is still up, but i have no idea how to fix it. Camera keeps working after java.lang.IllegalStateException error ocurrs. The second problem is BufferQueueProducer error but i cannot figure out where this is come from.
03-12 15:47:40.244 30720-30731/pl.tripper.tripper E/BufferQueueProducer: [SurfaceTexture-1-30720-1] dequeueBuffer: BufferQueue has been abandoned
03-12 15:47:40.244 30720-30751/pl.tripper.tripper E/BufferQueueProducer: [SurfaceTexture-1-30720-1] queueBuffer: BufferQueue has been abandoned
03-12 15:47:40.524 30720-30731/pl.tripper.tripper E/BufferQueueProducer: [SurfaceTexture-1-30720-1] cancelBuffer: BufferQueue has been abandoned
03-12 15:47:40.524 30720-30751/pl.tripper.tripper E/BufferQueueProducer: [SurfaceTexture-1-30720-1] cancelBuffer: BufferQueue has been abandoned
03-12 15:47:40.524 30720-30732/pl.tripper.tripper E/BufferQueueProducer: [SurfaceTexture-1-30720-1] cancelBuffer: BufferQueue has been abandoned
03-12 15:47:40.524 30720-30731/pl.tripper.tripper E/BufferQueueProducer: [SurfaceTexture-1-30720-1] cancelBuffer: BufferQueue has been abandoned
Here is my code:
MainActivity.class
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
ButterKnife.bind(this);
Log.e(TAG, "onCreate");
isImmersiveAvailable();
cameraApiManager = new CameraApiManager(this, this);
}
@Override
protected void onResume() {
super.onResume();
Log.e(TAG, "onResume");
cameraApiManager.createCamera();
}
@Override
protected void onPause() {
super.onPause();
Log.e(TAG, "onPause");
cameraApiManager.releaseCameraAndPreview();
}
CameraApiManager.class
public class CameraApiManager implements CameraUtility.cameraOpenedListener {
private static final String TAG = "CameraApiManager";
private final WeakReference<MainActivity> mainActivity;
private Context context;
private CameraSourceApi cameraSourceApi;
private CameraPreview cameraPreview;
public CameraApiManager(Context context, MainActivity mainActivity){
this.mainActivity= new WeakReference<>(mainActivity);
cameraSourceApi = new CameraSourceApi<>(new CameraNewApi(context));
this.context = context;
}
private boolean cameraProgressBarEnable(){
return context.getResources().getBoolean(R.bool.camera_progress_bar_enable);
}
private void setCameraProgressBarVisibility(final int visibility ){
final MainActivity mainActivity = this.mainActivity.get();
if(mainActivity!= null){
// UI/Main Thread
if(Looper.myLooper() == Looper.getMainLooper()){
ProgressBar cameraProgressBar = (ProgressBar) mainActivity.findViewById(R.id.camera_progress_bar);
cameraProgressBar.setVisibility(visibility);
} else {
mainActivity.runOnUiThread(new Runnable() {
@Override
public void run() {
ProgressBar cameraProgressBar = (ProgressBar) mainActivity.findViewById(R.id.camera_progress_bar);
cameraProgressBar.setVisibility(visibility);
}
});
}
}
}
private void showCameraOpenErrorToast(){
Toast.makeText(context, context.getResources().getString(R.string.camera_open_error_toast), Toast.LENGTH_LONG).show();
}
private boolean cameraPermissionGranted() {
return ContextCompat.checkSelfPermission(context, Manifest.permission.CAMERA) == PackageManager.PERMISSION_GRANTED;
}
public void createCamera(){
if(cameraPermissionGranted()){
if(cameraProgressBarEnable()){
setCameraProgressBarVisibility(View.VISIBLE);
}
cameraSourceApi.createCamera(this);
}
}
public void releaseCameraAndPreview(){
if(cameraPermissionGranted()){
cameraSourceApi.releaseCamera();
removeCameraPreview();
}
}
@Override
public void onCameraOpened(boolean succeeded, boolean addPreview, boolean progressBar) {
if(addPreview) {
if (cameraPreview == null) {
Log.e(TAG, "cameraPreviewCreated");
cameraPreview = new CameraPreview(context, cameraSourceApi);
addCameraPreview();
}
}
if(!progressBar){
if(cameraProgressBarEnable()){
setCameraProgressBarVisibility(View.GONE);
}
}
if(!succeeded){
showCameraOpenErrorToast();
}
}
private void addCameraPreview(){
MainActivity mainActivity = this.mainActivity.get();
if(mainActivity != null && cameraPreview != null){
FrameLayout preview = (FrameLayout) mainActivity.findViewById(R.id.camera_preview);
preview.addView(cameraPreview);
}
}
private void removeCameraPreview(){
MainActivity mainActivity = this.mainActivity.get();
if(mainActivity!= null && cameraPreview != null){
Log.e(TAG, "cameraPreviewRemoved");
FrameLayout preview = (FrameLayout) mainActivity.findViewById(R.id.camera_preview);
preview.removeView(cameraPreview);
cameraPreview = null;
}
}
class CameraSourceApi<T extends CameraUtility> implements CameraUtility{
private T camera;
CameraSourceApi(T camera){
this.camera = camera;
}
@Override
public void createCamera(CameraUtility.cameraOpenedListener cameraOpenedListener) {
camera.createCamera(cameraOpenedListener);
}
@Override
public void releaseCamera() {
camera.releaseCamera();
}
@Override
public void onSurfaceCreated(SurfaceHolder surfaceHolder) {
camera.onSurfaceCreated(surfaceHolder);
}
@Override
public void onSurfaceChanged(SurfaceHolder surfaceHolder, int width, int height) {
camera.onSurfaceChanged(surfaceHolder, width, height);
}
@Override
public void onSurfaceDestroyed(SurfaceHolder surfaceHolder) {
camera.onSurfaceDestroyed(surfaceHolder);
}
}
}
CameraNewApi.class
@TargetApi(21)
class CameraNewApi implements CameraUtility {
private static final String TAG = "CameraNewApi";
private Semaphore cameraOpenCloseLock = new Semaphore(1);
private CameraUtility.cameraOpenedListener cameraOpenedListener;
private Context context;
private Handler backgroundHandler;
private HandlerThread backgroundThread;
private SurfaceHolder surfaceHolder;
private String backFacingCameraId;
private CaptureRequest.Builder captureRequestBuilder;
private CameraDevice cameraDevice;
private CameraCaptureSession cameraCaptureSessions;
CameraNewApi(Context context){
this.context = context;
}
private final CameraDevice.StateCallback cameraDeviceStateCallback = new CameraDevice.StateCallback() {
@Override
public void onOpened(@NonNull CameraDevice camera) {
Log.e(TAG, "onOpened");
cameraOpenCloseLock.release();
cameraDevice = camera;
if(surfaceHolder != null){
createCameraPreview();
} else {
releaseCameraComponents();
}
}
@Override
public void onDisconnected(@NonNull CameraDevice camera) {
Log.d(TAG, "deviceCallback.onDisconnected() start");
Log.e(TAG, "onDisconnected");
if(cameraOpenedListener != null) {
cameraOpenedListener.onCameraOpened(false, false, false);
}
cameraOpenCloseLock.release();
camera.close();
cameraDevice = null;
}
@Override
public void onError(@NonNull CameraDevice camera, int error) {
Log.e(TAG, "onError");
Log.d(TAG, "deviceCallback.onError() start");
if(cameraOpenedListener != null) {
cameraOpenedListener.onCameraOpened(false, false, false);
}
cameraOpenCloseLock.release();
camera.close();
cameraDevice = null;
}
};
private final CameraCaptureSession.StateCallback captureSessionStateCallback = new CameraCaptureSession.StateCallback() {
@Override
public void onConfigured(@NonNull CameraCaptureSession session) {
Log.e(TAG, "onConfigured");
if(cameraDevice != null){
cameraCaptureSessions = session;
captureRequestBuilder.set(CaptureRequest.CONTROL_MODE, CameraMetadata.CONTROL_MODE_AUTO);
try {
if(cameraOpenedListener != null) {
cameraOpenedListener.onCameraOpened(true, false, false);
}
session.setRepeatingRequest(captureRequestBuilder.build(), null, backgroundHandler);
} catch (CameraAccessException e) {
Log.e(TAG, "Camera has been disconnected", e);
} catch (IllegalStateException e){
Log.e(TAG, "Session was closed or camera device has been closed. ", e);
releaseCameraComponents();
}
}
}
@Override
public void onConfigureFailed(@NonNull CameraCaptureSession session) {
Log.d(TAG, "Capture session configure failed: " + session);
Log.e(TAG, "onConfigureFailed");
}
};
@Override
public void createCamera(CameraUtility.cameraOpenedListener cameraOpenedListener) {
this.cameraOpenedListener = cameraOpenedListener;
startBackgroundThread();
if(cameraOpenedListener != null){
cameraOpenedListener.onCameraOpened(true, true, true);
}
initCamera();
}
private void releaseCameraComponents(){
try{
cameraOpenCloseLock.acquire();
if(cameraCaptureSessions != null){
cameraCaptureSessions.close();
cameraCaptureSessions = null;
}
if(cameraDevice != null){
cameraDevice.close();
cameraDevice = null;
}
if(surfaceHolder != null){
surfaceHolder = null;
}
if(cameraOpenedListener != null){
cameraOpenedListener = null;
}
Log.e(TAG, "cameraComponentsReleased");
} catch (InterruptedException e) {
throw new RuntimeException("Interrupted while trying to lock camera closing.", e);
} finally {
cameraOpenCloseLock.release();
}
}
@Override
public void releaseCamera() {
releaseCameraComponents();
stopBackgroundThread();
}
@Override
public void onSurfaceCreated(SurfaceHolder surfaceHolder) {
Log.e(TAG, "onSurfaceCreated");
this.surfaceHolder = surfaceHolder;
openCamera();
}
@Override
public void onSurfaceChanged(SurfaceHolder surfaceHolder, int width, int height) {
Log.e(TAG, "onSurfaceChanged");
setSurfaceSize(width, height);
}
@Override
public void onSurfaceDestroyed(SurfaceHolder surfaceHolder) {
Log.e(TAG, "onSurfaceDestroyed");
}
private void startBackgroundThread() {
Log.e(TAG, "startCameraThread");
backgroundThread = new HandlerThread("CameraBackground");
backgroundThread.start();
backgroundHandler = new Handler(backgroundThread.getLooper());
}
private void stopBackgroundThread() {
Log.e(TAG, "StopCameraThread");
backgroundThread.quitSafely();
try {
backgroundThread.join();
backgroundThread = null;
backgroundHandler = null;
} catch (InterruptedException e) {
Log.e(TAG, "Error message: ", e);
}
}
private void initCamera(){
Log.e(TAG, "initCamera");
CameraManager cameraManager = (CameraManager) context.getSystemService(Context.CAMERA_SERVICE);
try{
for (String cameraId : cameraManager.getCameraIdList()) {
CameraCharacteristics characteristics
= cameraManager.getCameraCharacteristics(cameraId);
// Use back camera
Integer facing = characteristics.get(CameraCharacteristics.LENS_FACING);
if (facing != null && facing == CameraCharacteristics.LENS_FACING_BACK) {
backFacingCameraId = cameraId;
break;
}
}
if(backFacingCameraId == null){
Log.d(TAG, "Could not detect a camera");
}
} catch (CameraAccessException e) {
Log.e(TAG, "Could not get camera list", e);
}
}
private void openCamera(){
Log.e(TAG, "openCamera");
CameraManager cameraManager = (CameraManager) context.getSystemService(Context.CAMERA_SERVICE);
try{
if(backFacingCameraId != null && cameraDevice == null){
try{
if (!cameraOpenCloseLock.tryAcquire(2500, TimeUnit.MILLISECONDS)) {
throw new RuntimeException("Time out waiting to lock camera opening.");
}
cameraManager.openCamera(backFacingCameraId, cameraDeviceStateCallback, backgroundHandler);
} catch (InterruptedException e) {
throw new RuntimeException("Interrupted while trying to lock camera opening.", e);
}
}
} catch(SecurityException e){
Log.e(TAG, "Camera permission is not granted", e);
} catch(CameraAccessException e){
Log.e(TAG, "Could not open camera", e);
}
}
private void createCameraPreview(){
Log.e(TAG, "createCameraPreview");
Surface surface = surfaceHolder.getSurface();
List<Surface> surfaceList = Collections.singletonList(surface);
try {
captureRequestBuilder = cameraDevice.createCaptureRequest(CameraDevice.TEMPLATE_PREVIEW);
captureRequestBuilder.addTarget(surface);
cameraDevice.createCaptureSession(surfaceList, captureSessionStateCallback, null);
} catch (CameraAccessException e){
Log.e(TAG, "Could not create capture session for camera: " + cameraDevice.getId(), e);
} catch (IllegalStateException e){
Log.e(TAG, "Camera has been closed", e);
}
}
CameraUtility.interface
interface CameraUtility {
void createCamera(CameraUtility.cameraOpenedListener cameraOpenedListener);
void releaseCamera();
void onSurfaceCreated(SurfaceHolder surfaceHolder);
void onSurfaceChanged(SurfaceHolder surfaceHolder, int width, int height);
void onSurfaceDestroyed(SurfaceHolder surfaceHolder);
interface cameraOpenedListener{
void onCameraOpened(boolean succeeded, boolean addPreview, boolean progressBar);
}
}
UPDATE
That's why it does not happen everytime. Error occurs when right after onPause is called, session starts to repeat requests to maintain preview(onConfigured). Then cameraComponentsReleased triggers where all the cleanup is done, including current CameraDevice object. Still don't have a clue how to manage this situation.
03-13 12:12:24.375 17555-17555/pl.tripper.tripper E/MainActivity: onPause
03-13 12:12:24.395 17555-20454/pl.tripper.tripper E/CameraNewApi: onConfigured
03-13 12:12:24.625 17555-17555/pl.tripper.tripper E/CameraNewApi: cameraComponentsReleased
03-13 12:12:24.625 17555-17555/pl.tripper.tripper E/CameraNewApi: StopCameraThread
03-13 12:12:24.625 17555-20454/pl.tripper.tripper E/CameraNewApi: Session was closed or camera device has been closed.
java.lang.IllegalStateException: CameraDevice was already closed
at android.hardware.camera2.impl.CameraDeviceImpl.checkIfCameraClosedOrInError(CameraDeviceImpl.java:1997)
at android.hardware.camera2.impl.CameraDeviceImpl.submitCaptureRequest(CameraDeviceImpl.java:844)
at android.hardware.camera2.impl.CameraDeviceImpl.setRepeatingRequest(CameraDeviceImpl.java:899)
at android.hardware.camera2.impl.CameraCaptureSessionImpl.setRepeatingRequest(CameraCaptureSessionImpl.java:236)
at pl.tripper.tripper.camera.CameraNewApi$2.onConfigured(CameraNewApi.java:114)
at java.lang.reflect.Method.invoke(Native Method)
at android.hardware.camera2.dispatch.InvokeDispatcher.dispatch(InvokeDispatcher.java:39)
at android.hardware.camera2.dispatch.HandlerDispatcher$1.run(HandlerDispatcher.java:65)
at android.os.Handler.handleCallback(Handler.java:739)
at android.os.Handler.dispatchMessage(Handler.java:95)
at android.os.Looper.loop(Looper.java:158)
at android.os.HandlerThread.run(HandlerThread.java:61)
03-13 12:12:24.625 17555-20454/pl.tripper.tripper E/CameraNewApi: Camera onClosed
03-13 12:12:24.625 17555-17555/pl.tripper.tripper E/CameraApiManager: cameraPreviewRemoved
441
java.lang.IllegalStateException: CameraDevice was already closed
This means CameraDevice is closed by someone in certain situation. (ex:Out of memory) To handle this, you can add onClosed() callback in your StateCallback - cameraDeviceStateCallback.
android.hardware.camera2.CameraDevice.StateCallback.onClosed(CameraDevice)
Updated:
It looks like a race condition. In the log, 17555-17555 releaseCameraComponents and 17555-20454 onConfigured callback is called on the different threads. IMO, cameraCaptureSessions should be synchronized in releaseCameraComponents and onConfigured.
private void releaseCameraComponents(){
synchronized(lock) {
....
}
}
....
@Override
public void onConfigured(@NonNull CameraCaptureSession session) {
synchronized(lock) {
....
}
}
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