Question

我通过创建xib视图以及自定义协议，视图控制器类和文本字段扩展来实现了自定义键盘。

我的问题是我不确定如何获取对当前文本字段的引用，以便在调用函数（List<int> years = yearsString.Split(',').Select(x => int.Parse(x.Trim())).ToList();）时可以将其作为函数的属性，并在button函数中使用它。（即像didEndEditing一样，由于自定义协议/委托而无法使用）

谢谢！

protocoll：

self.delegate?.enterPressed(textfield: currentTextfield)

视图控制器类：

@objc protocol ActivityKeyboardDelegate {
    func numericKeyPressed(key: Int)
    func numericBackspacePressed()
    func numericSymbolPressed(symbol: String)
    func enterPressed()
    func dismissPressed()
}

}

文本扩展名：

class ActivityKeyboard: UIView {

// data
weak var delegate: ActivityKeyboardDelegate?

// MARK: - Initialization and lifecycle.

override init(frame: CGRect) {
    super.init(frame: frame)
    initializeKeyboard()
}

required init?(coder aDecoder: NSCoder) {
    super.init(coder: aDecoder)
    initializeKeyboard()
}

func initializeKeyboard() {
    // set view
    let xibFileName = "activityKeyboard"
    let view = Bundle.main.loadNibNamed(xibFileName, owner: self, options: nil)![0] as! UIView
    self.addSubview(view)
    view.frame = self.bounds
}

// MARK: - Button actions

@IBAction func numericButtonPressed(_ sender: UIButton) {
    self.delegate?.numericKeyPressed(key: sender.tag)
}

@IBAction func backspacePressed(_ sender: AnyObject) {
    self.delegate?.numericBackspacePressed()
}

@IBAction func symbolWasPressed(_ sender: UIButton) {
    if let symbol = sender.titleLabel?.text, symbol.count > 0 {
        self.delegate?.numericSymbolPressed(symbol: symbol)
    }
}

@IBAction func enterPressed(_ sender: Any) {
    print(self.superview!)

    self.delegate?.enterPressed()
}

@IBAction func dismissPressed(_ sender: Any) {
    self.delegate?.dismissPressed()
}

}

Swift自定义inputView键盘-获取对当前firstResponder的引用（文本字段）

0 个答案: