Using UIImagePickerController in UIView - ios

Question

I have button which when I click displays the camera (works perfectly)
- (IBAction)getPhoto:(id)sender
{
NSLog( #"Button clicked!" );
imagePicker = [[UIImagePickerController alloc] init];
imagePicker.delegate = self;
if ([UIImagePickerController isSourceTypeAvailable:UIImagePickerControllerSourceTypeCamera]) {
[imagePicker setSourceType:UIImagePickerControllerSourceTypeCamera];
}
else { // IF the device doesn't have a camera, so use the photos album
[imagePicker setSourceType:UIImagePickerControllerSourceTypeSavedPhotosAlbum];
}
[self addSubview:imagePicker.view];
}
After which I can take an image, etc, - But when I click "use" : nothing happens here is my method : the Image picker does not dismiss itslelf : the application simply does nothing, I'm trying to take the image I just took and display it inside a CGRect on screen .
- (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info {
[picker dismissViewControllerAnimated:YES completion:NULL];
UIImageView *patientImage = [[UIImageView alloc] init];
patientImage.frame = CGRectMake(625, 25, 83, 103);
UIImage *chosenImage = info[UIImagePickerControllerEditedImage];
self.patientImage.image = chosenImage;
}
Even when I hit the cancel button without taking an image, the imagePicker (camera interface) does not dismiss itself
Any help, advice, or guidance would be very appreciated.

Answer 1

You shouldn't be doing the "addSubview" thing up there but instead do:
[self presentViewController:imagePicker animated:YES completion:nil];

Answer 2

Instead of adding the picker as a subview, you should add the picker to a UIPopoverController.
You can then display it from within your UIView subclass by using the presentPopoverFromRect:inView:permittedArrowDirections:animated: popover method like this:
self.popover = [[UIPopoverController alloc] initWithContentViewController:imagePicker];
[self.popover presentPopoverFromRect:sender.frame inView:self permittedArrowDirections: UIPopoverArrowDirectionAny animated:YES];
Then, you can use the delegate methods to dismiss the popover using:
[self.popover dismissPopoverAnimatedYES];
The is required by the official docs:
The table indicates that on iPad, if you specify a source type of UIImagePickerControllerSourceTypePhotoLibrary or
UIImagePickerControllerSourceTypeSavedPhotosAlbum, you must present
the image picker using a popover controller, as described in
“Presenting and Dismissing the Popover” in UIPopoverController Class
Reference. If you attempt to present an image picker modally
(full-screen) for choosing among saved pictures and movies, the system
raises an exception.
On iPad, if you specify a source type of
UIImagePickerControllerSourceTypeCamera, you can present the image
picker modally (full-screen) or by using a popover. However, Apple
recommends that you present the camera interface only full-screen.

Answer 3

Is the getPhoto: method in the UIView subclass?
If thats the case, then it would be better to:
Move the getPhoto: code out of the UIView subclass entirely, and put it in the view's parent view controller.
Make your UIButton a property of your UIView: #property (nonatomic, strong) UIButton *myButton;
In your view controller, set the button's target & action as follows:
[myView.myButton addTarget:self action:#selector(getPhoto:) forControlEvents:UIControlEventTouchUpInside];
Finally, in your getPhoto: method, call [self presentViewController:imagePicker animated:YES completion:NULL];
Your - (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info code should also go in the view controller, changing self.patientImage.image = chosenImage; to myView.patientImage.image = chosenImage;

Answer 4

Dont know why the cancel button is not working.
But make this change it will select the image you are clicking.
If you want an cancel event add it by creating custom UIBarButtonand add it.
- (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info {
UIImageView *patientImage = [[UIImageView alloc] init];
patientImage.frame = CGRectMake(625, 25, 83, 103);
UIImage *chosenImage = info[UIImagePickerControllerEditedImage];
self.patientImage.image = chosenImage;
[imagePicker.view removeFromSuperview];
}

Answer 5

Try:
- (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info {
[picker.view removeFromSuperview];
UIImageView *patientImage = [[UIImageView alloc] init];
patientImage.frame = CGRectMake(625, 25, 83, 103);
UIImage *chosenImage = info[UIImagePickerControllerEditedImage];
self.patientImage.image = chosenImage;
}

Answer 6

Remove the [self.addSubView:imagePicker.view]; and instead
[self presentViewController:imagePicker animated:YES completion:NULL];
You are dismissing the variable picker although picker is undefined. Instead put:
[self dismissModalViewControllerAnimated:YES completion:NULL];
and make sure its at the end of your method.