change the uiview background color with code
You can set the backgroundColor property of whatever view it is you have on screen.
In Objective-C:
self.view.backgroundColor = [UIColor redColor];In Swift:
self.view.backgroundColor = .redor if it's the main window you're after,
In Objective-C:
self.window.backgroundColor = [UIColor redColor];In Swift:
self.window.backgroundColor = .red
self.view.backgroundColor = [UIColor redColor];possible colors are :
blackColor darkGrayColor lightGrayColor whiteColor grayColor redColor greenColor blueColor cyanColor yellowColor magentaColor orangeColor purpleColor brownColor clearColor
For Swift 3, you should do:
self.view.backgroundColor = UIColor.whiteUnfortunately, the other answers no longer work in Swift 3.