UIIMagePickerController dismissViewControllerAnimated:completion: not working - ios

Question

I'm trying to pick an image from UIImagePickerController and then set it inline inside UITextView. The code below is pretty straightforward. When i tap "act" button, it opens up UIImagePickerController and once it's done, the delegate method didFinishPickingMediaWithInfo gets triggered.
- (IBAction)act:(id)sender{
UIImagePickerController *picker = [[UIImagePickerController alloc] init];
picker.delegate = self;
picker.allowsEditing = YES;
picker.sourceType = UIImagePickerControllerSourceTypePhotoLibrary;
[self presentViewController:picker animated:YES completion:NULL];
}
- (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info {
UIImage *chosenImage = info[UIImagePickerControllerEditedImage];
if(!self.imageView){
self.imageView = [[UIImageView alloc] initWithImage:chosenImage];
[self.imageView setContentMode:UIViewContentModeScaleAspectFit];
[self.imageView setFrame:CGRectMake(10.0, 10.0, 100.0f, 100.0f)];
[self.content addSubview:self.imageView];
UIBezierPath *exclusionPath = [UIBezierPath bezierPathWithRect:CGRectMake(0.0,0.0,120.0f,110.0f)];
self.content.textContainer.exclusionPaths = #[exclusionPath];
} else {
[self.imageView setImage:chosenImage];
}
[picker dismissViewControllerAnimated:YES completion:nil];
}
Here's the problem: when i try to dismiss UIImagePickerViewController using dismissViewController, it is just ignored. However, it works fine without the two lines where i'm setting the exclusionPaths. Also, this only happens when there's already text in the UITextView. If there's no text, I can do this as many times as I want and dismissViewController works fine. I've stepped through the code and the code actually does pass through the [picker dismissViewControllerAnimated: completion: line. Also picker at that point is indeed an instance of UIImagePickerController. Anyone have idea what is going on?
[UPDATE] I've actually trimmed down the code to the following:
- (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info {
UIBezierPath *exclusionPath = [UIBezierPath bezierPathWithRect:CGRectMake(0.0,0.0,120.0f,110.0f)];
self.content.textContainer.exclusionPaths = #[exclusionPath];
[picker dismissViewControllerAnimated:YES completion:nil];
}
Basically I don't even set the imageView anymore. It's just that when I try to set the exclusionPaths of a UITextView--self.content--the dismissViewControllerAnimated:completion: doesn't work. There is no error in the console.

Answer 1

You have to call dismissViewConroller: on self and not picker.
Better yet, call it on picker.presentingViewController like this:
[picker.presentingViewController dismissViewControllerAnimated:YES completion:nil];