在Swift iOS中设置设备方向

Question

我正在开发一款适用于iPhone的快速应用程序.在我的应用程序中有一个模态视图,我只想在纵向视图中.

我的问题是,我如何以编程方式强制手机不允许旋转？换句话说,我正在寻找不允许以横向模式显示模态视图的代码(打开纵向旋转锁定).

这仅适用于1个模态视图,因此我无法关闭整个应用程序的旋转,否则我只会完全禁用旋转.

我在这里的研究中找到了代码 但是在目标C中,如果有帮助的话.谢谢!

Answer 1

嗨,适合LandscapeLeft和LandscapeRight (更新Swift 2.0)

你有这个信息

和UIController

override func shouldAutorotate() -> Bool {
    return true
}

override func supportedInterfaceOrientations() -> UIInterfaceOrientationMask {
    return [UIInterfaceOrientationMask.LandscapeLeft,UIInterfaceOrientationMask.LandscapeRight]
}

对于PortraitUpsideDown和Portrait使用它

override func shouldAutorotate() -> Bool {
    if (UIDevice.currentDevice().orientation == UIDeviceOrientation.LandscapeLeft ||
        UIDevice.currentDevice().orientation == UIDeviceOrientation.LandscapeRight ||
        UIDevice.currentDevice().orientation == UIDeviceOrientation.Unknown) {
            return false
    }
    else {
        return true
    }
}

override func supportedInterfaceOrientations() -> UIInterfaceOrientationMask {
    return [UIInterfaceOrientationMask.Portrait ,UIInterfaceOrientationMask.PortraitUpsideDown]
}

来自法国的消息,圣诞快乐!

编辑:

其他方案:

extension UINavigationController {
    public override func shouldAutorotate() -> Bool {
        if visibleViewController is MyViewController {
            return true   // rotation
        } else {
            return false  // no rotation
        }
    }

    public override func supportedInterfaceOrientations() -> UIInterfaceOrientationMask {
        return (visibleViewController?.supportedInterfaceOrientations())!
    }
}

Answer 2

您可以将这些方法粘贴到需要为肖像的每个视图的ViewController中:

override func shouldAutorotate() -> Bool {
    return false
}

override func supportedInterfaceOrientations() -> UIInterfaceOrientationMask {
    return UIInterfaceOrientationMask.Portrait
}

Answer 3

斯威夫特3

如果视图控制器被嵌入的UINavigationController或的UITabBarController导航或标签栏控制器优先,并就自转和支撑取向决定取向旋转更为复杂.

在UINavigationController和UITabBarController上使用以下扩展,以便嵌入其中一个控制器的视图控制器可以做出决定:

UINavigationController扩展

extension UINavigationController {

override open var shouldAutorotate: Bool {
    get {
        if let visibleVC = visibleViewController {
            return visibleVC.shouldAutorotate
        }
        return super.shouldAutorotate
    }
}

override open var preferredInterfaceOrientationForPresentation: UIInterfaceOrientation{
    get {
        if let visibleVC = visibleViewController {
            return visibleVC.preferredInterfaceOrientationForPresentation
        }
        return super.preferredInterfaceOrientationForPresentation
    }
}

override open var supportedInterfaceOrientations: UIInterfaceOrientationMask{
    get {
        if let visibleVC = visibleViewController {
            return visibleVC.supportedInterfaceOrientations
        }
        return super.supportedInterfaceOrientations
    }
 }}

UITabBarController扩展

extension UITabBarController {

override open var shouldAutorotate: Bool {
    get {
        if let selectedVC = selectedViewController{
            return selectedVC.shouldAutorotate
        }
        return super.shouldAutorotate
    }
}

override open var preferredInterfaceOrientationForPresentation: UIInterfaceOrientation{
    get {
        if let selectedVC = selectedViewController{
            return selectedVC.preferredInterfaceOrientationForPresentation
        }
        return super.preferredInterfaceOrientationForPresentation
    }
}

override open var supportedInterfaceOrientations: UIInterfaceOrientationMask{
    get {
        if let selectedVC = selectedViewController{
            return selectedVC.supportedInterfaceOrientations
        }
        return super.supportedInterfaceOrientations
    }
}}

现在,您可以覆盖要锁定的视图控制器中的supportedInterfaceOrientations,shouldAutoRotate和preferredInterfaceOrientationForPresentation,否则您可以忽略其他视图控制器中要继承应用程序plist中指定的默认方向行为的覆盖.

锁定特定方向

class YourViewController: UIViewController {
open override var supportedInterfaceOrientations: UIInterfaceOrientationMask{
    get {
        return .portrait
    }
}}

禁用旋转

    class YourViewController: UIViewController {
open override var shouldAutorotate: Bool {
    get {
        return false
    }
}}

更改首选接口方向以进行演示

class YourViewController: UIViewController {
open override var preferredInterfaceOrientationForPresentation: UIInterfaceOrientation{
    get {
        return .portrait
    }
}}

Answer 4

如果您的视图控制器属于导航控制器,则上述代码可能无法正常工作.如果是,则即使它本身具有不同的方向规则,它也必须遵守导航控制器的规则.更好的方法是让视图控制器自行决定,导航控制器将使用最顶层视图控制器的决定.

我们可以支持锁定到当前方向和自动旋转以使用UINavigationController上的这个通用扩展锁定特定方向: - :

extension UINavigationController {
            public override func shouldAutorotate() -> Bool {
                return visibleViewController.shouldAutorotate()
            }

        public override func supportedInterfaceOrientations() -> UIInterfaceOrientationMask {
            return (visibleViewController?.supportedInterfaceOrientations())!
        }
    }

现在在视图控制器中我们可以

class ViewController: UIViewController {
    // MARK: Autoroate configuration

    override func shouldAutorotate() -> Bool {
        if (UIDevice.currentDevice().orientation == UIDeviceOrientation.Portrait ||
            UIDevice.currentDevice().orientation == UIDeviceOrientation.PortraitUpsideDown ||
            UIDevice.currentDevice().orientation == UIDeviceOrientation.Unknown) {
                return true
        }
        else {
            return false
        }
    }

    override func supportedInterfaceOrientations() -> Int {
        return Int(UIInterfaceOrientationMask.Portrait.rawValue) | Int(UIInterfaceOrientationMask.PortraitUpsideDown.rawValue)
    }
}

希望能帮助到你.谢谢

Answer 5

这将禁用视图的自动旋转:

override func shouldAutorotate() -> Bool {
    return false;
}

更新

override func shouldAutorotate() -> Bool {
    if (UIDevice.currentDevice().orientation == UIDeviceOrientation.LandscapeLeft ||
        UIDevice.currentDevice().orientation == UIDeviceOrientation.LandscapeRight ||
        UIDevice.currentDevice().orientation == UIDeviceOrientation.Unknown) {
            return false;
    }
    else {
        return true;
    }
}

如果应用程序处于横向模式并且您显示必须以纵向模式显示的视图,这将允许应用程序将其方向更改为纵向(当然,当设备将旋转到此类方向时).

Answer 6

如果有人想要答案,我想我得到了答案.试试这个:

• 转到.plist文件并检查所有方向.
• 在要强制方向的视图控制器中,添加以下代码:

override func supportedInterfaceOrientations() -> UIInterfaceOrientationMask {
    return UIInterfaceOrientationMask.Portrait.toRaw().hashValue | UIInterfaceOrientationMask.PortraitUpsideDown.toRaw().hashValue
}

希望能帮助到你 !

编辑:

要强制旋转,请使用以下代码:

let value = UIInterfaceOrientation.LandscapeRight.rawValue
UIDevice.currentDevice().setValue(value, forKey: "orientation")

它适用于iOS 7和8!

Answer 7

Go to your pList and add or remove the following as per your requirement:

"Supported Interface Orientations" - Array
"Portrait (bottom home button)" - String
"Portrait (top home button)" - String
"Supported Interface Orientations (iPad)" - Array
"Portrait (bottom home button)" - String
"Portrait (top home button)" - String
"Landscape (left home button)" - String
"Landscape (right home button)" - String

注意:此方法允许旋转整个应用程序.

要么

在项目中为UIViewControllers创建一个ParentViewController(继承方法).

//  UIappViewController.swift

import UIKit

class UIappViewController: UIViewController {
          super.viewDidLoad()   
    }
//Making methods to lock Device orientation.
    override func supportedInterfaceOrientations() -> UIInterfaceOrientationMask {
        return UIInterfaceOrientationMask.Portrait
    }
    override func shouldAutorotate() -> Bool {
        return false
    }                                                                                                                                       
    override func didReceiveMemoryWarning() {
            super.didReceiveMemoryWarning()
            // Dispose of any resources that can be recreated.
        }
    }

将每个视图控制器的父控制器关联为UIappViewController.

//  LoginViewController.swift

import UIKit
import Foundation

class LoginViewController: UIappViewController{

    override func viewDidLoad()
    {
        super.viewDidLoad()

    }
    override func didReceiveMemoryWarning() {
        super.didReceiveMemoryWarning()
    }

Answer 8

对于Swift 3,iOS 10

override open var shouldAutorotate: Bool {
    return false
}

override open var supportedInterfaceOrientations: UIInterfaceOrientationMask {
    return .portrait
}

override open var preferredInterfaceOrientationForPresentation: UIInterfaceOrientation {
    return .portrait
}

但是,有一个错误,该设置shouldAutorotate目前在iOS 9上不起作用.

Answer 9

在info.plist文件中,在"支持的界面方向"中更改所需的方向.

在swift方式支持files-> info.plist->支持界面方向.