本文介绍如何使用 Swift 在 UIPickerView 中自定义单元格显示，并通过不同组件展示不同数据。具体实现包括设置字体大小、适配文本长度等。
func pickerView(pickerView: UIPickerView, viewForRow row: Int, forComponent component: Int, reusingView view: UIView?) -> UIView {
let lable=UILabel()
if(component==0){
if(pickerView==pickview){
lable.sizeToFit()
lable.font=UIFont.systemFontOfSize(13)
lable.text=ComponentsInPickerView0[row] as String
return lable
}
if(pickerView==pickview2){
lable.sizeToFit()
lable.font=UIFont.systemFontOfSize(13)
lable.text=ComponentsInPickerView1[row] as String
return lable
}
if(pickerView==PICkview3){
lable.sizeToFit()
lable.font=UIFont.systemFontOfSize(13)
lable.text=ComponentsInPickerView2[row] as String
return lable
}
}
return lable
}
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