Question

我正在尝试让我的keybordview打开方向更改 - 我的.xib中的视图与@IBOutlet连接然后我用viewDidLoad（）内的loadInterface（）调用它们我希望我的调用viewDidLoad会更新界面，但我认为它的工作方式并不像我想的那样 - 它不会破坏任何东西，但它也不起作用（尽管如此，我从上周开始取得了大量进展。）。

我感觉这是方向改变的事情......

import UIKit

class KeyboardViewController: UIInputViewController {

@IBOutlet var keyboardViewPortrait: UIView!
@IBOutlet var keyboardViewLandscape: UIView!

func loadInterface(){
    var keyboardNib = UINib(nibName: "keyboardView", bundle: nil)

    UIDevice.currentDevice().beginGeneratingDeviceOrientationNotifications()

    if self.interfaceOrientation.isLandscape {
        self.keyboardViewLandscape = keyboardNib.instantiateWithOwner(self, options: nil)[0] as UIView
        view.addSubview(self.keyboardViewLandscape)
        view.backgroundColor = self.keyboardViewLandscape.backgroundColor
    }
    else if self.interfaceOrientation.isPortrait {
        self.keyboardViewPortrait = keyboardNib.instantiateWithOwner(self, options: nil)[0] as UIView
        view.addSubview(self.keyboardViewPortrait)
        view.backgroundColor = self.keyboardViewPortrait.backgroundColor
    }

    self.nextKeyboardButton.addTarget(self, action: "advanceToNextInputMode", forControlEvents: .TouchUpInside)       
}

override func viewDidLoad() {
    super.viewDidLoad()
    UIDevice.currentDevice().beginGeneratingDeviceOrientationNotifications()
    loadInterface()

    ...
}
}

*更新

我认为rdelmar让我走上正确的道路，但仍然缺少一些东西。

谢谢！

Answer 1

问题是你为self.keyboardViewLandscape和self.keyboardViewPortrait分配了相同的视图（在两种情况下都是你从keyboardNib.instantiateWithOwner获得的视图（self，options：nil）[0]）。其中一个属性应该分配给索引1处的对象。另外，使用new方法处理旋转可能更好，viewWillTransitionToSize：withTransitionCoordinator：。您还需要在添加新视图时删除上一个视图。

class ViewController: UIViewController {

    var keyboardViewPortrait: UIView!
    var keyboardViewLandscape: UIView!
    var keyboardNib = UINib(nibName: "keyboardView", bundle: nil)

    override func viewDidLoad() {
        super.viewDidLoad()
        self.keyboardViewPortrait = keyboardNib.instantiateWithOwner(self, options: nil)[0] as UIView
        view.addSubview(self.keyboardViewPortrait)
        view.backgroundColor = self.keyboardViewPortrait.backgroundColor
    }

    override func viewWillTransitionToSize(size: CGSize, withTransitionCoordinator coordinator: UIViewControllerTransitionCoordinator){

        if size.width > size.height {
            self.keyboardViewPortrait.removeFromSuperview()
            self.keyboardViewLandscape = keyboardNib.instantiateWithOwner(self, options: nil)[1] as UIView
            view.addSubview(self.keyboardViewLandscape)
            view.backgroundColor = self.keyboardViewLandscape.backgroundColor
        }
        else {
            self.keyboardViewLandscape.removeFromSuperview()
            self.keyboardViewPortrait = keyboardNib.instantiateWithOwner(self, options: nil)[0] as UIView
            view.addSubview(self.keyboardViewPortrait)
            view.backgroundColor = self.keyboardViewPortrait.backgroundColor
        }
    }
}

在swift中加载xib视图的方向变化

1 个答案: