Ios Swift 4-如何在pods类中导入AppDelegate

我正在尝试将此代码添加到cocoapods库中的视图控制器

 public override func viewWillDisappear(_ animated: Bool) {
     (UIApplication.shared.delegate as! AppDelegate).restrictRotation = .portrait
}

---

但它使用了未声明的类型“AppDelegate”错误。。如何将AppDelegate之类的项目文件导入到Pod中？

Pod应可在不同的项目中重用，因此您不会在Pod中包含项目文件

通过让pod定义一个协议，然后由项目应用程序代表采用，您应该能够实现您的目标：

protocol RotationRestrictable {
    enum RotationRestriction {
        case .none
        case .portrait
        case .landscape
    }

    var restrictRotation: RotationRestriction
}

import YourPod

@UIApplicationMain
class AppDelegate: UIResponder, UIApplicationDelegate, RotationRestrictable {

    var restrictRotation: RotationRestrictable.RotationRestriction = .none {
        didSet {
           // Whatever you need to do
        }
    }
 ...
}

那么你可以说

public override func viewWillDisappear(_ animated: Bool) {
    if let delegate = UIApplication.shared.delegate as? RotationRestrictable {
        delegate.restrictRotation = .portrait
    }
}

在您的应用程序代理中：

protocol RotationRestrictable {
    enum RotationRestriction {
        case .none
        case .portrait
        case .landscape
    }

    var restrictRotation: RotationRestriction
}

import YourPod

@UIApplicationMain
class AppDelegate: UIResponder, UIApplicationDelegate, RotationRestrictable {

    var restrictRotation: RotationRestrictable.RotationRestriction = .none {
        didSet {
           // Whatever you need to do
        }
    }
 ...
}