ios - 无法在Pickerview中设置inputAccessoryView工具栏

在Swift 3中，我无法在pickerview中设置工具栏

pickerFilter？.inputAccessoryView = barAccessory

错误是inputAccessoryView是仅获取属性。

当我是Pickerview中的addsubview时。工具栏已显示，但完成按钮不可单击

有什么办法吗？

最佳答案

let flexiblespace = UIBarButtonItem(barButtonSystemItem:.flexibleSpace , target: nil, action: nil)

    let btnDone = UIBarButtonItem(barButtonSystemItem: .done, target: self, action: #selector(self.donePresed))
    let barAccessory = UIToolbar(frame: CGRect(x: 0, y: 0, width: viewPicker.frame.size.width, height: 44))
    barAccessory.barStyle = .default
    barAccessory.isTranslucent = true
    barAccessory.items = [flexiblespace,btnDone]

    viewPicker.addSubview(pickerDrpDown!)
    viewPicker.addSubview(barAccessory)