我如何全屏显示图像

Question

How do I show a UIImageview fullscreen (programmatically) so that it takes the whole view in Objective-C? I tried doing:

   [self.centerImage setFrame: CGRectMake(self.centerImage.frame.origin.x, self.centerImage.frame.origin.y, img.size.width, img.size.height)];

but the origin.x just does not give me a full screen representation

thanks

Answer 1

The "whole view" will vary in size depending what device you're on. So the first step is to use auto layout and pin the four sides of the image view to the four sides of its superview. Now it exactly covers the "whole view". You will then have to play with the content mode, but that's a different matter.

Answer 2

如果要以全屏显示图像，则将视图框架分配给图像视图，如下所示

self.centerImage.frame = self.view.frame