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未删除InputAccessoryView

swift4.2 inputaccessoryview keyboard xcode

1

a.masri · 技术社区 · 8 年前

我正在制作一个iOS应用程序,在其中我使用 inputaccessoryview 到 UIViewController ,

问题是

控制器A

   class  ControllerA: UIViewController { 

    override var inputAccessoryView: UIView? {
        return saveView
    }

    override var canBecomeFirstResponder: Bool {
        return true
    }

    @IBAction func openVCB(_ sender: UIButton) {

    let controllerB = controllerB.instantiate(fromAppStoryboard: .main)
        let navigationController = UINavigationController(rootViewController: controllerB)
        navigationController.navigationBar.isTranslucent = false
        self.present(navigationController, animated: true)
    }
}

控制器B

   class  ControllerB: UIViewController { 

    override var inputAccessoryView: UIView? {
        return nil
    }

    override var canBecomeFirstResponder: Bool {
        return false
    }

}

在 controller A 视图按预期工作,但在 controller B 如果我打开一个键盘并关闭它, AccossoryView 它是可见的,不应该是可见的,有什么想法吗?

完整项目 InpoutViewTest

2 回复 | 直到 8 年前

1

2

a.masri 8 年前

遵循以下方法:

var shouldBecomeFirstResponder:Bool = false

override var canBecomeFirstResponder: Bool {
return shouldBecomeFirstResponder
}

别忘了在 viewWillDisappear 也

 shouldBecomeFirstResponder = false

2

0

guard working else panic 8 年前

我也遇到了这个问题。试着把这个放进你的 viewWillDisappear(_ animated: Bool) 功能:

override func viewWillDisappear(_ animated: Bool) {
   if let myInputAccessoryView = saveView {
      myInputAccessoryView.removeFromSuperview()
   }
}

在转换为 controller B . 当返回到 controller A . 你也可以试试 myInputAccessoryView.isHidden = true 而不是 removeFromSuperview() 如果你愿意的话。