我如何将ios目标c中的背景图像设置为rootViewController？

Question

i can set a background color like : rootViewController.view.backgroundColor = [UIColor colorWithRed:(35.0/255.0) green:(92.0/255.0) blue:(78.0/255.0) alpha:1];

how can i set in rootViewController an image background ?

Answer 1

UIViews are basically backed by CALayer 's so you can apply settings to its properties.

UIImage *img = [UIImage imageNamed:@"yourAssetImage"];
rootViewController.view.layer.contents = (__bridge id)img.CGImage;