iOS和Swift 4中自定义键盘的高度

Question

如何获取iOS给定制键盘的视图高度？

我目前正在为iPhone 8 Plus手动设置键盘界面：

var keyboardHeight: CGFloat {
    return UIScreen.main.bounds.height > UIScreen.main.bounds.width ? 226 : 162
}

如何以编程方式获取所有大小类的键盘高度？

Answer 1

方式通常是：listen to keyboard notifications and respond to them 与通知一起发送的endFrame字典的userInfo键包含正确的键盘大小。我还考虑了accessoryInputView。

Answer 2

尝试

override func viewDidLoad() {
    super.viewDidLoad()

    let desiredHeight: CGFloat =  500
    let heightConstraint = NSLayoutConstraint(item: view, attribute: .height, relatedBy: .equal, toItem: nil, attribute: .notAnAttribute, multiplier: 1.0, constant: desiredHeight)
    view.addConstraint(heightConstraint)

    self.nextKeyboardButton.addTarget(self, action: #selector(handleInputModeList(from:with:)), for: .allTouchEvents)

}