在Swift中获取设备方向 [英] Getting device orientation in Swift

问题描述

我想知道如何在Swift中获取当前的设备方向？我知道有一些Objective-C的例子，但我无法让它在Swift中运行。

I was wondering how I can get the current device orientation in Swift? I know there are examples for Objective-C, however I haven't been able to get it working in Swift.

我正在尝试获取设备方向并将其放入进入if语句。

I am trying to get the device orientation and put that into an if statement.

这是我遇到的问题最多的一行：

This is the line that I am having the most issues with:

[[UIApplication sharedApplication] statusBarOrientation]

推荐答案

你可以使用：

override func didRotateFromInterfaceOrientation(fromInterfaceOrientation: UIInterfaceOrientation) {
    var text=""
    switch UIDevice.currentDevice().orientation{
    case .Portrait:
        text="Portrait"
    case .PortraitUpsideDown:
        text="PortraitUpsideDown"
    case .LandscapeLeft:
        text="LandscapeLeft"
    case .LandscapeRight:
        text="LandscapeRight"
    default:
        text="Another"
    }
    NSLog("You have moved: \(text)")        
}

SWIFT 3更新

override func didRotate(from fromInterfaceOrientation: UIInterfaceOrientation) {
    var text=""
    switch UIDevice.current.orientation{
    case .portrait:
        text="Portrait"
    case .portraitUpsideDown:
        text="PortraitUpsideDown"
    case .landscapeLeft:
        text="LandscapeLeft"
    case .landscapeRight:
        text="LandscapeRight"
    default:
        text="Another"
    }
    NSLog("You have moved: \(text)")        
}

或

override func willRotateToInterfaceOrientation(toInterfaceOrientation: UIInterfaceOrientation, duration: NSTimeInterval) {
}

通知您可以查看： IOS8 Swi ft：如何检测方向变化？

注意： didRotateFromInterfaceOrientation 已弃用对于iOS 2.0及更高版本使用
viewWillTransitionToSize

NOTE : didRotateFromInterfaceOrientation is Deprecated Use viewWillTransitionToSize for iOS 2.0 and later

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