在选择器视图中更改字体大小和样式

Question

如何更改选择器视图的字体样式和大小？我在选择器视图设置中看不到选项。你能以编程方式设置它吗？我正在使用 swift 3 和 xcode8.2.

Answer 1

您可以在函数中更改字体样式和大小：

func pickerView(_ pickerView: UIPickerView, viewForRow row: Int, forComponent component: Int, reusing view: UIView?) -> UIView

例如：

let pickerDataSource: [String] = (1...10).map { "Option " + String(format: "%2d", [=11=])}

func pickerView(_ pickerView: UIPickerView, viewForRow row: Int, forComponent component: Int, reusing view: UIView?) -> UIView {
    let label = (view as? UILabel) ?? UILabel()

    label.textColor = .red
    label.textAlignment = .center
    label.font = UIFont.systemFont(ofSize: 20)

    label.text = pickerDataSource[row]

    return label
  }
}

在选择器视图中更改字体大小和样式

changing font size and style in picker view

uipickerview

ios

swift