Question

I am taking the screen shot on .mm file i used the below code
I tried in 2 ways it is not working.. If i place the same code in any one of my .m file its working

- (void)viewWillAppear:(BOOL)animated
{
 UIGraphicsBeginImageContext(self.view.bounds.size);
    [self.view.layer renderInContext:UIGraphicsGetCurrentContext()];
    UIImage *image = UIGraphicsGetImageFromCurrentImageContext();
    appDelegate.convertedImage=image;
UIGraphicsEndImageContext();
}

         (or)

-(void)viewWillAppear:(BOOL)animated
{
CGSize newSize = CGSizeMake(320, 416);//377
    UIGraphicsBeginImageContext(newSize);
    [self.view.layer renderInContext:UIGraphicsGetCurrentContext()];
    UIImage *viewImage = UIGraphicsGetImageFromCurrentImageContext();
    appDelegate.convertedImage=viewImage;
}

It is not works on .mm Is there any other option to do?
(I integrated openCv in my project there i used 1 .mm file)

Please Guide me

Thanks in advance

Answer 1

viewWillAppear method called before the view is rendered, so nothing to capture there. Have you tried using viewDidAppear instead?

Some reference.