ios - 更改 UIPickerView 的标签

Question

我正在尝试更改 UIPickerView 的字体。

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

    label.font = UIFont(name:"SynchroLetPlain", size:20)
    //label.font = UIFont.systemFont(ofSize: 17) //Even I use systemFont, it doesn't show nothing
    return label
}

虽然编译没问题，但没有显示文本。

差异在哪里？我检查过 SynchroLetPlain 包含在项目中。

Answer 1

试试这个:

label.font = UIFont(name:"Synchro LET Plain", size:20)

我猜这个问题与字体的实际名称有关。我的意思是 iOS 通过实际名称搜索字体，而不是字体的文件名。

更新:

func pickerView(_ pickerView: UIPickerView, viewForRow row: Int, forComponent component: Int, reusingView view: UIView?) -> UIView {
    var label: UILabel
    if let view = view as? UILabel {
        label = view
    } else {
        label = UILabel()
        label.font = UIFont(name:"SynchroLetPlain", size:20)
    }
    label.text = "text" // your text
    return label
}