超过1个UIPickerView Swift

Question

我试图用2个UIPickerViews创建一个简单的应用程序，当我放入第二个时，它只包含与第一个相同的数据。我已经宣布了将数据插入第一个的功能：

var typesOfData = ["KB","MB","GB"]
func numberOfComponentsInPickerView(pickerView: UIPickerView) -> Int {
    return 1
}

func pickerView(pickerView: UIPickerView, numberOfRowsInComponent component: Int) -> Int {
    return typesOfData.count
}

func pickerView(pickerView: UIPickerView, titleForRow row: Int, forComponent component: Int) -> String! {
    return typesOfData[row]
}

但我需要知道如何为第二个UIPickerView声明这些函数。

Answer 1

您可以使用相同的委托方法填充UIPickerView。只需根据您UIPickerView处理的UIPickerView条件有条件地填充它们。例如，如果您的第一个firstPickerView被称为UIPickerView，而您的第二个secondDataSet被var typesOfData = ["KB","MB","GB"] var secondDataSet = ["A","B","C"] func numberOfComponentsInPickerView(pickerView: UIPickerView) -> Int { return 1 } func pickerView(pickerView: UIPickerView, numberOfRowsInComponent component: Int) -> Int { if pickerView == firstPickerView { return typesOfData.count } else { // if it's the second picker view return secondDataSet.count } } func pickerView(pickerView: UIPickerView, titleForRow row: Int, forComponent component: Int) -> String! { if pickerView == firstPickerView { return typesOfData[row] } else { return secondDataSet[row] } } 填充：

{{1}}