iOS:View controller crashes when trying to use camera in an application. - objective-c

Question

I have a button where when the user presses it, he is navigated to camera to take a pic.
When he takes the pic, he presses done and gets back to the controller. But when that happens the navigation bar gets up in the screen, gets below the battery/signal bar that the telephone has. The weird thing is that this happens on 4/4s but not on 3gs

Answer 1

It is rather tough to answer the question without knowing a bit more details, but here's some code I use to bring up the camera, take the picture, then close the camera successfully. The method can be called by using one line of code: [self takePhoto];
- (void) takePhoto {
if ([UIImagePickerController isSourceTypeAvailable:UIImagePickerControllerSourceTypeCamera]) {
//Clear out the UI first
UIImagePickerController *picker = [[UIImagePickerController alloc] init];
picker.delegate = self;
picker.sourceType = UIImagePickerControllerSourceTypeCamera;
//picker.sourceType = UIImagePickerControllerSourceTypePhotoLibrary; -> use this if you want them to select from the library
[self presentViewController:picker animated:YES completion:nil];
} else {
//Device does not support a camera, show a message if desired
}
}
Then you need a delegate for it all so the program knows what to do when an image is taken or selected and how to close, that's what this code is:
- (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info {
self.workingImage = nil;
//I grab the image and store globally, but first I manually scale and rotate it if necessary
self.workingImage = [self scaleAndRotateImage:[info objectForKey:UIImagePickerControllerOriginalImage]];
//I display the image in my UI view, so this chunk of code will size it properly
CGRect bound;
bound.origin = CGPointZero;
bound.size = img.size;
imageView.bounds = bound;
//Set the UI image view and dismiss the controller
[imageView setImage:self.workingImage];
[picker dismissModalViewControllerAnimated:YES];
}
Obviously, make sure your controller .h implements the delegate properly like so:
#interface ViewController : UIViewController<UIImagePickerControllerDelegate> { ... }
Hope this helps?