如何在 UIPickerView 中显示所需的行？

Posted 2023-02-24

【中文标题】如何在 UIPickerView 中显示所需的行？

【英文标题】：How to show needed row in UIPickerView?

【发布时间】：2019-03-28 16:23:52

【问题描述】：

我知道数组中的数据，我需要在我的应用加载时显示选定的行。例如，如何在开始时选择“四”？

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let arrayOfNumbers = ["One", "Two", "Three", "Four", "Five"]

override func viewDidLoad() 
    super.viewDidLoad()
    pickerTest.delegate = self
    pickerTest.dataSource = self


@IBOutlet weak var pickerTest: UIPickerView!

func numberOfComponents(in pickerView: UIPickerView) -> Int 
    return 1


func pickerView(_ pickerView: UIPickerView, numberOfRowsInComponent component: Int) -> Int 
    return arrayOfNumbers.count


func pickerView(_ pickerView: UIPickerView, titleForRow row: Int, forComponent component: Int) -> String? 
    return arrayOfNumbers[row]

【参考方案1】：

pickerTest.selectRow(4, inComponent: 0, animated: true)

【讨论】：

天哪！这太容易了……谢谢！