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I have a UIImageView and the objective is to scale it down proportionally by giving it either a height or width.
UIImage *image = [[UIImage alloc] initWithData:[NSData dataWithContentsOfURL:[NSURL URLWithString:@"http://farm4.static.flickr.com/3092/2915896504_a88b69c9de.jpg"]]]; UIImageView *imageView = [[UIImageView alloc] initWithImage:image]; //Add image view [self.view addSubview:imageView]; //set contentMode to scale aspect to fit imageView.contentMode = UIViewContentModeScaleAspectFit; //change width of frame CGRect frame = imageView.frame; frame.size.width = 100; imageView.frame = frame; The image did get resized but the position is not at the top left. What is the best approach to scaling image/imageView and how do I correct the position?
786
UIImage contains the data for an image. UIImageView is a custom view meant to display the UIImage .
Here is the essential problem: the only way in which UIImageView interacts with Auto Layout is via its intrinsicContentSize property. That property provides the intrinsic size of the image itself, and nothing more.
Show activity on this post. extension UIImage { func imageResize (sizeChange:CGSize)-> UIImage{ let hasAlpha = true let scale: CGFloat = 0.0 // Use scale factor of main screen UIGraphicsBeginImageContextWithOptions(sizeChange, ! hasAlpha, scale) self. draw(in: CGRect(origin: CGPoint.
Fixed easily, once I found the documentation!
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