How to animate a UIImageview to display fullscreen by tapping on it?

Question

I have an UIImageView in a UITableviewCell. When it is tapped, the UIImageView should animated to be displayed fullscreen. When the image is tapped when it is fullscreen it

Answer 1

The code from @AzzUrr1, small error corrections (brackets) and tapper implemented slightly different.

Worked for me. Now it would be great to have this implemented with a scrollView, that the user can zoom in/out if the picture is bigger.. Any suggestion?

ViewController.h

#import 

@interface ViewController : UIViewController  {
    UITapGestureRecognizer *tap;
    BOOL isFullScreen;
    CGRect prevFrame;
}
@property (nonatomic, strong) UIImageView *imageView; 

@end

ViewController.m

#import "ViewController.h"

@interface ViewController ()

@end

@implementation ViewController

- (void)viewDidLoad
{
    [super viewDidLoad];
    isFullScreen = FALSE;
    tap = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(imgToFullScreen)];
    tap.delegate = self;
    self.view.backgroundColor = [UIColor purpleColor];

    _imageView = [[UIImageView alloc] initWithFrame:CGRectMake(10, 10, 300, 200)];
    _imageView.contentMode = UIViewContentModeScaleAspectFill;
    [_imageView setClipsToBounds:YES];
    _imageView.userInteractionEnabled = YES;
    _imageView.image = [UIImage imageNamed:@"Muppetshow-2.png"];

    UITapGestureRecognizer *tapper = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(imgToFullScreen:)];
    tapper.numberOfTapsRequired = 1;

    [_imageView addGestureRecognizer:tapper];

    [self.view addSubview:_imageView];
}

-(void)imgToFullScreen:(UITapGestureRecognizer*)sender {
    if (!isFullScreen) {
        [UIView animateWithDuration:0.5 delay:0 options:0 animations:^{
            //save previous frame
            prevFrame = _imageView.frame;
            [_imageView setFrame:[[UIScreen mainScreen] bounds]];
        }completion:^(BOOL finished){
            isFullScreen = TRUE;
        }];
        return;
    }
    else{
        [UIView animateWithDuration:0.5 delay:0 options:0 animations:^{
            [_imageView setFrame:prevFrame];
        }completion:^(BOOL finished){
            isFullScreen = FALSE;
        }];
        return;
    }
}