Question

有没有办法使用Xamarin Forms在其中使用Editor创建自定义弹出对话框。针对iOS平台。

我希望弹出一个标题标签，用于接受输入的文本框和用于显示错误消息的错误标签，使用确定和取消按钮。

我想从弹出的输入接受引脚号，并且必须验证引脚。如果验证失败，我必须在弹出窗口中显示错误消息。

谢谢，

Answer 1

这是一个很好的XF弹出窗口，包括向弹出窗口添加编辑器的功能。

// Use these methods in PopupNavigation globally or Navigation in your pages

// Open new PopupPage
Task PushAsync(PopupPage page, bool animate = true) // Navigation.PushPopupAsync

// Hide last PopupPage
Task PopAsync(bool animate = true) // Navigation.PopPopupAsync

// Hide all PopupPage with animations
Task PopAllAsync(bool animate = true) // Navigation.PopAllPopupAsync

// Remove one popup page in stack
Task RemovePageAsync(PopupPage page, bool animate = true) // Navigation.RemovePopupPageAsync

XAML POPUP PAGE

<?xml version="1.0" encoding="utf-8" ?>
<pages:PopupPage xmlns="http://xamarin.com/schemas/2014/forms"
             xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml"
             xmlns:pages="clr-namespace:Rg.Plugins.Popup.Pages;assembly=Rg.Plugins.Popup"
             xmlns:animations="clr-namespace:Rg.Plugins.Popup.Animations;assembly=Rg.Plugins.Popup"
             x:Class="Demo.Pages.MyPopupPage">
  <!--Animations use example-->
  <pages:PopupPage.Animation>
    <animations:ScaleAnimation 
      PositionIn="Center"
      PositionOut="Center"
      ScaleIn="1.2"
      ScaleOut="0.8"
      DurationIn="400"
      DurationOut="300"
      EasingIn="SinOut"
      EasingOut="SinIn"
      HasBackgroundAnimation="True"/>
  </pages:PopupPage.Animation>
  <!-- Content -->
</pages:PopupPage>

POPUP PAGE

public partial class MyPopupPage : PopupPage
    {
        public SecondPopupPage()
        {
            InitializeComponent();
        }

        protected override void OnAppearing()
        {
            base.OnAppearing();
        }

        protected override void OnDisappearing()
        {
            base.OnDisappearing();
        }

        // Method for animation child in PopupPage
        // Invoced after custom animation end
        protected virtual Task OnAppearingAnimationEnd()
        {
            return Content.FadeTo(0.5);
        }

        // Method for animation child in PopupPage
        // Invoked before custom animation begin
        protected virtual Task OnDisappearingAnimationBegin()
        {
            return Content.FadeTo(1);;
        }

        protected override bool OnBackButtonPressed()
        {
            // Prevent hide popup
            //return base.OnBackButtonPressed();
            return true; 
        }

        // Invoced when background is clicked
        protected override bool OnBackgroundClicked()
        {
            // Return default value - CloseWhenBackgroundIsClicked
            return base.OnBackgroundClicked();
        }
    }

网主页

    // Main Page

    public partial class MainPage : ContentPage
    {
        public MainPage()
        {
            InitializeComponent();
        }

        // Button Click
        private async void OnOpenPupup(object sender, EventArgs e)
        {
            var page = new MyPopupPage();

            await Navigation.PushPopupAsync(page);
            // or
            await PopupNavigation.PushAsync(page);
        }
    }

Answer 2

查看ACR用户对话框。 https://github.com/aritchie/userdialogs

Nuget Package：https://www.nuget.org/packages/Acr.UserDialogs/

然后查看提示示例：https://github.com/aritchie/userdialogs/blob/master/src/Samples/Samples/ViewModels/StandardViewModel.cs#L97

void Prompt()
        {
            UserDialogs.Instance.ActionSheet(new ActionSheetConfig()
                .SetTitle("Choose Type")
                .Add("Default", () => this.PromptCommand(InputType.Default))
                .Add("E-Mail", () => this.PromptCommand(InputType.Email))
                .Add("Name", () => this.PromptCommand(InputType.Name))
                .Add("Number", () => this.PromptCommand(InputType.Number))
                .Add("Number with Decimal", () => this.PromptCommand(InputType.DecimalNumber))
                .Add("Password", () => this.PromptCommand(InputType.Password))
                .Add("Numeric Password (PIN)", () => this.PromptCommand(InputType.NumericPassword))
                .Add("Phone", () => this.PromptCommand(InputType.Phone))
                .Add("Url", () => this.PromptCommand(InputType.Url))
            );
        }

Answer 3

是的，可以在Xamarin表单中添加自定义弹出窗口。请按照以下步骤操作：

创建一个stacklayout。
将字段添加到stacklayout。
创建一个新的Frame对象。
使用transaprent颜色制作Frame对象背景。
将Stacklayout对象添加到框架中。
将框架添加到主要内容页面。

如果您需要代码，我会更新。

Xamarin.Forms中的自定义弹出窗口

3 个答案: