斯威夫特3.0

的宽度

UIScreen.main.bounds.size.width

身高

UIScreen.main.bounds.size.height

我已经把上面的一些Objective-C答案翻译成Swift代码。每一篇译文都引用了原文的答案。

主要解决途径

let screen = UIScreen.main.bounds
let screenWidth = screen.size.width
let screenHeight = screen.size.height

##简单函数回答

func windowHeight() -> CGFloat {
    return UIScreen.main.bounds.size.height
}

func windowWidth() -> CGFloat {
    return UIScreen.main.bounds.size.width
}

##设备朝向回答

let screenHeight: CGFloat
let statusBarOrientation = UIApplication.shared.statusBarOrientation
// it is important to do this after presentModalViewController:animated:
if (statusBarOrientation != .portrait
    && statusBarOrientation != .portraitUpsideDown) {
    screenHeight = UIScreen.main.bounds.size.width
} else {
    screenHeight = UIScreen.main.bounds.size.height
}

# #日志回答

let screenWidth = UIScreen.main.bounds.size.width
let screenHeight = UIScreen.main.bounds.size.height
println("width: \(screenWidth)")
println("height: \(screenHeight)")

这里我已经更新了swift 3

applicationFrame已从iOS 9弃用

在swift 3中，他们已经删除了()，他们已经改变了一些命名惯例，你可以参考这里的链接

func windowHeight() -> CGFloat {
    return UIScreen.main.bounds.size.height
}

func windowWidth() -> CGFloat {
    return UIScreen.main.bounds.size.width
}

斯威夫特3.0

的宽度

UIScreen.main.bounds.size.width

身高

UIScreen.main.bounds.size.height

iOS 13+的答案(找到键窗口的代码来源):

guard let window = UIApplication.shared.windows.first(where: { $0.isKeyWindow }) else {
    return
}

let windowWidth = window.frame.width
let windowHeight = window.frame.height

对于iPad分割窗口，[[UIScreen mainScreen] bounds]不起作用，使用[UIApplication sharedApplication].delegate.window.bounds代替。