How to pushViewController with grow up animation


Just add this code to your file.

@implementation UINavigationController (Dummy)

-(void)enlarge:(UIViewController *)controller fromView:(UIView *)view animated:(BOOL)animated
{
    UIImageView *imageV=[self takeSnapshot:controller];
    CGRect sourceFrame=view.frame;
    CGRect destFrame=controller.view.frame;
    [imageV setFrame:sourceFrame];
    [self.view addSubview:imageV];
    
    [UIView animateWithDuration:0.3 animations:^{
        [imageV setFrame:destFrame];
    } completion:^(BOOL finished) {
        [self pushViewController:controller animated:NO];
        [imageV removeFromSuperview];
    }];
}

-(UIImageView *)takeSnapshot:(UIViewController *)controller
{
    
    UIGraphicsBeginImageContext(self.view.frame.size);
    CGContextRef context=UIGraphicsGetCurrentContext();
    [controller.view.layer renderInContext:context];
    UIImage *image=UIGraphicsGetImageFromCurrentImageContext();
    UIImageView *imageView=[[UIImageView alloc] initWithImage:image];
    UIGraphicsEndImageContext();
    return imageView;
}


@end

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