UIActivityIndicatorView not showing on theCamera overlay view when image taking done

Question

I have a UIActivityIndicatorView middle on camera OverlayView.xib. I am taking multiple snap by calling [cameraPicker takePicture] repeatedly. I want to show the indicator when all snaps taking done by the bellow code:

- (void)didTakePicture:(UIImage *)picture {   //Called from picker didFinishPickingMediaWithInfo

   [self.capturedImages addObject:picture];
   snapsCount ++;
   if (snapsCount < noOfSnaps) {
      [cameraPicker takePicture];
   }else {
     overlayView.indicator.hidden = NO;  //Not showing indicator
     [overlayView.indicator startAnimating]; //Not working
   }
}

Can anyone tell me the reason why not showing. I can show the indicator before taking the last snap by the following condition, but why not at last.

if (snapsCount < noOfSnaps) {
    if (snapsCount+1 == noOfSnaps) {

       overlayView.indicator.hidden = NO;  //Show the indicator
       [overlayView.indicator startAnimating];   //Work nicely
       overlayView.userMessage.text = @"Processing";
    }
    [cameraPicker takePicture];
}

Is there anyone faced the problem and know the solution to show the indicator after all snap taking done.

Thanks in advance.

The code executes at about 0.0001 seconds, so by you starting and stoping the activity indicator in between actually does nothing (to the naked eye) — the code executes too fast. — WrightsCS, May 23 '12 at 05:09
do animating in new thread and stop until last snap not taken — Paresh Navadiya, May 23 '12 at 05:15
if (snapsCount < noOfSnaps) { if (snapsCount+1 == noOfSnaps) { [overlayView.indicator stopAnimating]; //Work nicely overlayView.indicator.hidden = YES; //Show the indicator //overlayView.userMessage.text = @"Processing"; } overlayView.indicator.hidden = NO; //Show the indicator [overlayView.indicator startAnimating]; //Work nicely overlayView.userMessage.text = @"Processing"; [cameraPicker takePicture]; } it works activity indicator not shown then use a method which animates activity ind in a new thread — Paresh Navadiya, May 23 '12 at 05:44

score 0 · Answer 1 · answered May 23 '12 at 05:33

- (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info
{

if (snapsCount > noOfSnaps) {
overlayView.indicator.hidden = NO;  
[overlayView.indicator startAnimating];
}
[NSTimer scheduledTimerWithTimeInterval:0.3
                                 target:self 
                               selector:@selector(didTakePicture:) 
                               userInfo: [info objectForKey:UIImagePickerControllerOriginalImage] 
                                repeats:NO];
}

UIActivityIndicatorView not showing on theCamera overlay view when image taking done

1 Answers1