How to determine preview status of UIImagePickerController?

Question

I use the standard image picker to take some photo of the camera.

When the user takes a photo, he displays the Preview screen with 2 Repeat and Use buttons.

How do I detect that the Preview screen is active or the Retry button is pressed? Is it possible? Are useful properties or events? Something like when the image source is a library, the is - property allows you to edit, which displays a similar screen.

UIImagePickerController * imagePicker = [[UIImagePickerController alloc] init]; imagePicker.delegate = self; imagePicker.sourceType = UIImagePickerControllerSourceTypeCamera; 

Answer 1

A little in fact, but maybe someone is still looking for an answer like me. If you want to continue using the built-in camera controls, you can check the ImagePickerController sub-items to determine if the view is displayed after recording.

 BOOL videoTaken = NO; for (UIView *aView in self.imagePickerController.view.subviews[0].subviews[0].subviews[0].subviews) { if ([aView isKindOfClass:NSClassFromString(@"PLTileContainerView")]) { videoTaken = YES; break; } } 

"PLTileContainerView" is a subtitle that contains an editing slider that allows you to view the video frame by frame, so if it is present, it means that your video has already been recorded.

Answer 2

For use:

 - (void) imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info { [picker dismissModalViewControllerAnimated:NO]; NSString *type = [info objectForKey:@"UIImagePickerControllerMediaType"]; if ([type isEqualToString:@"public.movie"]) { } else { UIImage *image = [info objectForKey:@"UIImagePickerControllerOriginalImage"]; } } 

For Cancel, you have no way to detect it (other than subclassing UIImagePickerController , which may be prohibited or in another way that I don’t know about), but a second response is most likely detected:

 - (void)imagePickerControllerDidCancel:(UIImagePickerController *)picker { [picker dismissModalViewControllerAnimated:YES]; }