ios - inputAccessoryView 未显示在键盘上方

Question

Problem relates to this.我正在尝试使用我制作的自定义 View ，它有两个 TextField 输入和一个按钮，我使用 IB 它的 xib 制作它，我将它放在我的 Storyboard中并将它设置为在我的 View 底部.

当我想让 ContactInfoView 成为键盘的附属 View 时，问题就来了。

class ViewController: UIViewController, UITextViewDelegate {

@IBOutlet var cameraPreview: UIView!
@IBOutlet weak var ContactInfoView: KeyboardAccessoryView!



override func viewDidLoad() {
    super.viewDidLoad()

}

override func didReceiveMemoryWarning() {
    super.didReceiveMemoryWarning()
    // Dispose of any resources that can be recreated.
}

override func viewWillAppear(animated: Bool) {
    super.viewWillAppear(animated)





        }
    }

}


override func viewDidAppear(animated: Bool) {
    super.viewDidAppear(animated)
    //cameraPreviewLayer!.frame = cameraPreview.bounds

    NSNotificationCenter.defaultCenter().addObserver(self, selector: Selector("keyboardWillAppear"), name: UIKeyboardWillShowNotification, object: nil)
    NSNotificationCenter.defaultCenter().addObserver(self, selector: Selector("keyboardWillHide"), name: UIKeyboardWillHideNotification, object: nil)
    ContactInfoView.NameInput.inputAccessoryView = ContactInfoView



}


override func viewDidDisappear(animated: Bool) {


    super.viewDidDisappear(animated)


    NSNotificationCenter.defaultCenter().removeObserver(self, name: UIKeyboardWillShowNotification, object: nil)
    NSNotificationCenter.defaultCenter().removeObserver(self, name: UIKeyboardWillHideNotification, object: nil)


}

// keyboard stuff

var accessoryView = KeyboardAccessoryView(frame: CGRectZero);

override var inputAccessoryView: KeyboardAccessoryView {


    return accessoryView

}

override func becomeFirstResponder() -> Bool {


    return true
}

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


func keyboardWillAppear() {
    print("Keyboard appeared")
}

func keyboardWillHide() {
    print("Keyboard hidden")
}

  }

ContactInfoView.NameInput.inputAccessoryView = ContactInfoView 没有将 View 放在键盘顶部。

我搞乱了代码，它开始因提供的链接而崩溃，但尝试该解决方案也没有用。

Answer 1

根据UITextView.h文件中的注释:

@property (nullable, readwrite, strong) UIView *inputView;             
@property (nullable, readwrite, strong) UIView *inputAccessoryView;

当对象成为第一响应者时呈现。如果设置为 nil，则恢复到以下响应者链。 如果在 first responder 时设置，在调用 reloadInputViews 之前不会生效。

您应该在设置 input.. 属性后调用 reloadInputViews 方法。