Xamarin形成时间选择器24小时 [英] Xamarin Forms timepicker 24hour
本文介绍了Xamarin形成时间选择器24小时的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
我是Xamarin.Forms的新手,我似乎找不到如何以24小时格式而不是AM/PM显示对话框的方法
I'm new to Xamarin.Forms and i can't seems to find how to show the dialog in a 24hour format instead of a AM/PM
有人可以帮助我吗?
谢谢
推荐答案
我找到的唯一解决方案是在这里: 24小时制
The only solution i found is here: 24h timepicker
基本上,每个平台项目中都需要一个自定义渲染器.
Basically a custom renderer within each platform project will be needed.
Xamarin.iOS:
Xamarin.iOS:
using MonoTouch.Foundation;
using MonoTouch.UIKit;
using Xamarin.Forms;
using Xamarin.Forms.Platform.iOS;
using PersonalTrainer.iOS.View.Controls;
[assembly: ExportRenderer (typeof (TimePicker), typeof (TimePicker24HRenderer))]
namespace YourNamespace.iOS.View.Controls {
public class TimePicker24HRenderer : TimePickerRenderer {
protected override void OnElementChanged(ElementChangedEventArgs<TimePicker> e) {
base.OnElementChanged(e);
var timePicker = (UIDatePicker)Control.InputView;
timePicker.Locale = new NSLocale("no_nb");
}
}
}
对于Android:
[assembly: ExportRenderer(typeof(TimePicker), typeof(TimePicker24HRenderer))]
namespace YourNamespace.Droid.View.Controls {
public class TimePicker24HRenderer : ViewRenderer<Xamarin.Forms.TimePicker, Android.Widget.EditText>, TimePickerDialog.IOnTimeSetListener, IJavaObject, IDisposable {
private TimePickerDialog dialog = null;
protected override void OnElementChanged(ElementChangedEventArgs<TimePicker> e) {
base.OnElementChanged(e);
this.SetNativeControl(new Android.Widget.EditText(Forms.Context));
this.Control.Click += Control_Click;
this.Control.Text = DateTime.Now.ToString("HH:mm");
this.Control.KeyListener = null;
this.Control.FocusChange += Control_FocusChange;
}
void Control_FocusChange(object sender, Android.Views.View.FocusChangeEventArgs e) {
if (e.HasFocus) { ShowTimePicker(); }
}
void Control_Click(object sender, EventArgs e) {
ShowTimePicker();
}
private void ShowTimePicker() {
if (dialog == null) {
dialog = new TimePickerDialog(Forms.Context, this, DateTime.Now.Hour, DateTime.Now.Minute, true);
}
dialog.Show();
}
public void OnTimeSet(Android.Widget.TimePicker view, int hourOfDay, int minute) {
var time = new TimeSpan(hourOfDay, minute, 0);
this.Element.SetValue(TimePicker.TimeProperty, time);
this.Control.Text = time.ToString(@"hh\:mm");
}
}
}
对于Windows Phone:
For Windows Phone:
[assembly: ExportRenderer (typeof (MyTimePicker), typeof (TimePicker24HRenderer))]
namespace YourNamespace.WindowsPhone.View.Controls {
public class TimePicker24HRenderer : TimePickerRenderer {
// Override the OnElementChanged method so we can tweak this renderer post-initial setup
protected override void OnElementChanged (ElementChangedEventArgs<Xamarin.Forms.TimePicker> e) {
base.OnElementChanged (e);
if (Control != null) {
var nativeControl = (Windows.UI.Xaml.Controls.TimePicker)Control;
nativeControl.Foreground = new SolidColorBrush(Colors.Gray);
Control.ClockIdentifier = "24HourClock";
}
}
}
}
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