ios - 从选取器 View 中获取选定值的函数

Question

我在创建一个函数来从我的应用程序上的选择器轮返回所选值时遇到问题。

这是我到目前为止所拥有的:

@IBOutlet weak var lstPriority: UIPickerView!

// Array for picker wheel items
let lstPriorityOptions = ["Low", "Medium", "High"]

// Function to get selected value from picker wheel
public func GetSelected() -> String {
    let pickerView: UIPickerView
    let valueSelected = lstPriorityOptions[row] as String

    return valueSelected
}

// Button click event, this is where I will be calling the above function
@IBAction func btnAdd(_ sender: Any) {
    if txtNewItem.text != "" {
        let newToDoItem = ToDoItem(ToDoItemText: txtNewItem.text!, ToDoItemPriority: GetSelected())
        ToDoItemList.append(newToDoItem)

        txtNewItem.text = ""
    }
}

Answer 1

-(IBAction)doneYearPickerAction:(id)sender
{
    if ([strPickerSelectedYearIndex isEqualToString:@""]) {
        self.yearTxt.text = [yearArr objectAtIndex:0];
    }else{
        self.yearTxt.text = [yearArr objectAtIndex:[strPickerSelectedYearIndex intValue]];
    }
    // hides year pickerview
    [_yearPickerView setHidden: YES];
}