24h Format in Timepicker

Question

I have a TimePicker and changed the Format to "HH:mm" to disable the AM-PM system. However, the picker still shows AM and PM instead of numbers from 00:00 to 23:59.

<TimePicker Time="13:00" Format="HH:mm"/>

Foto of iOS simulator

Answer 1

您指定的

格式仅表示用户如何看到他选择的值。 如果要更改控件本身的外观，则必须为TimePicker实现自定义渲染器。我相信这个link可以帮助您创建自定义渲染器。

Answer 2

您可以使用自定义渲染器实现此效果：

[assembly: ExportRenderer(typeof(TimePicker), typeof(MyTimePickerRenderer))]
namespace App18.iOS
{
   class MyTimePickerRenderer:TimePickerRenderer
     {
       protected override void OnElementChanged(ElementChangedEventArgs<TimePicker> e)
         {
           base.OnElementChanged(e);
           if (Control != null)
             {
               UIDatePicker picker = Control.InputView as UIDatePicker;
               picker.Mode = UIDatePickerMode.Time;
               NSLocale locale = new NSLocale("en_GB");
               picker.Locale = locale;
             }
         }
     }
}