Question

我是编程新手，所以请原谅这个问题的基本性质。

我正在尝试将多个选择器视图放入同一个类中，但他们会继续使用相同的选择。

class ViewController: UIViewController, UIPickerViewDelegate{

@IBOutlet var outgoing: UIPickerView!

var var1=["1","2"]
var var2=["a","b"]

override func viewDidLoad() {
    super.viewDidLoad()
}

override func didReceiveMemoryWarning() {
    super.didReceiveMemoryWarning()
}

func numberOfComponentsInPickerView(pickerView: UIPickerView!) ->Int{
    return 2
}


func pickerView(pickerView: UIPickerView!, numberOfRowsInComponent component: Int) ->Int {

    return var1.count


}


func pickerView(pickerView: UIPickerView!, titleForRow row: Int, forComponent component: Int)->String!{
    return var2[row]

}

有什么建议吗？

Answer 1

要显示两个组件，您需要更改方法，如：

func numberOfComponentsInPickerView(pickerView: UIPickerView!) ->Int
{
       return 2
}


func pickerView(pickerView: UIPickerView!, numberOfRowsInComponent component: Int) ->Int
{
    var rows = var2.count
    if component == 0
    {
        rows = var1.count
    }
    return rows;
}


func pickerView(pickerView: UIPickerView!, titleForRow row: Int, forComponent component: Int)->String!
{
    var componentStr = var2[row]
    if component == 0
    {
        componentStr = var1[row]
    }
    return componentStr;
}

Swift中有多个单独的Pickerviews

1 个答案: