io ti senti si dovrebbe aggiungere CameraOverlayView personalizzato al UIImagePickerController e nascondere CameraControls.This vinto' t mostra il tuo pulsante Annulla.
picker = [[UIImagePickerController alloc] init];
picker.delegate = self;
picker.sourceType = UIImagePickerControllerSourceTypeCamera;
[picker setShowsCameraControls:NO];
CGRect screenBounds= [UIScreen mainScreen].bounds ;
UIView *overlayView = [[UIView alloc] initWithFrame:screenBounds];
[overlayView setAutoresizesSubviews:YES];
[overlayView setAutoresizingMask:UIViewAutoresizingFlexibleWidth|UIViewAutoresizingFlexibleHeight|UIViewAutoresizingFlexibleBottomMargin|UIViewAutoresizingFlexibleTopMargin|UIViewAutoresizingFlexibleLeftMargin|UIViewAutoresizingFlexibleRightMargin]; UIButton *captureButton=[[UIButton alloc]initWithFrame:CGRectMake(screenBounds.size.width/2-30, screenBounds.size.height-60,60 , 60)];
[captureButton addTarget:self action:@selector(captureImage:) forControlEvents:UIControlEventTouchUpInside];
[captureButton setBackgroundImage:[UIImage imageNamed:@"icon"] forState:UIControlStateNormal];
[overlayView addSubview:captureButton];
[picker setCameraOverlayView:overlayView];
[picker setCameraDevice:UIImagePickerControllerCameraDeviceRear];
[self presentViewController:picker animated:YES completion:NULL];
E questa è l'azione per il pulsante Cattura.
-(void)captureImage:(UIButton*)sender
{
[picker takePicture];
}
E utilizzare questo metodo delegato per ottenere l'immagine.
-(void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info
{
[picker dismissViewControllerAnimated:YES completion:nil];
}
Grazie a @deepesh. Quello ha funzionato come un fascino. –