iOS UIPickerView自定义行视图宽度错误

Question

为以下方法返回自定义视图以自定义选择器行：

public override func pickerView(_ pickerView: UIPickerView, viewForRow row: Int, forComponent component: Int, reusing view: UIView?) -> UIView {
    return PickerAccessoryView.instantiateFromNib()
}

并返回完整宽度：

public func pickerView(_ pickerView: UIPickerView, widthForComponent component: Int) -> CGFloat {
    return pickerView.frame.width
}

不调整行视图的大小：O

Answer 1

通过将自定义视图的初始帧设置为.zero来解决：

public override func pickerView(_ pickerView: UIPickerView, viewForRow row: Int, forComponent component: Int, reusing view: UIView?) -> UIView {
    let view = PickerAccessoryView.instantiateFromNib()
    view.frame = .zero
    return view
}