我的 UIpickerView 中有 3 个组件，我想返回 UIpickerView 上显示的所有 3 个数字，但它只返回最后一个被选中的数字。换句话说，UIlabel 只显示一位数字。这是我目前所拥有的
class ViewController: UIViewController, UIPickerViewDataSource, UIPickerViewDelegate {
@IBOutlet weak var label: UILabel!
@IBOutlet weak var pickerView: UIPickerView!
let numbers = ["1", "2", "3", "4", "5", "6", "7", "8", "9", "0"]
func numberOfComponents(in pickerView: UIPickerView) -> Int {
return 3
}
func pickerView(_ pickerView: UIPickerView, titleForRow row: Int, forComponent component: Int) -> String? {
return numbers[row]
}
func pickerView(_ pickerView: UIPickerView, numberOfRowsInComponent component: Int) -> Int {
return numbers.count
}
func pickerView(_ pickerView: UIPickerView, didSelectRow row: Int, inComponent component: Int) {
label.text = numbers[row]
}
最佳答案
请检查:
func pickerView(_ pickerView: UIPickerView, didSelectRow row: Int, inComponent component: Int) {
let val1 = numbers[pickerView.selectedRow(inComponent: 0)]
let val2 = numbers[pickerView.selectedRow(inComponent: 1)]
let val3 = numbers[pickerView.selectedRow(inComponent: 2)]
label.text = "\(val1) \(val2) \(val3)"
}
关于ios - Swift:UIpickerView 在 UIlabel 上返回数字，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/46126096/