Question

我是Xamarin框架的新手，并为iOS和Droid共享应用程序开发应用程序。我只是想使用带有XAML的Masterdetailpage布局制作一个像Facebook应用程序一样的左滑块菜单。我找不到合适的例子或存根来开发结构编程。这将是很好的帮助如果有人可以建议我从现在开始我的当前项目的链接或示例代码片段？提前谢谢。

Answer 1

MasterDetailPageDemoPage是指向GitHub Xamarin-forms-samples的主详细信息页面示例的链接。我将发布此链接中的代码以及未来的链接中断

using System;
using Xamarin.Forms;

namespace FormsGallery
{
    class MasterDetailPageDemoPage :  MasterDetailPage
    {
        public MasterDetailPageDemoPage()
        {
            Label header = new Label
            {
                Text = "MasterDetailPage",
                Font = Font.SystemFontOfSize(30, FontAttributes.Bold),
                HorizontalOptions = LayoutOptions.Center
            };

            // Assemble an array of NamedColor objects.
            NamedColor[] namedColors = 
                {
                    new NamedColor("Aqua", Color.Aqua),
                    new NamedColor("Black", Color.Black),
                    new NamedColor("Blue", Color.Blue),
                    new NamedColor("Fuschia", Color.Fuschia),
                    new NamedColor("Gray", Color.Gray),
                    new NamedColor("Green", Color.Green),
                    new NamedColor("Lime", Color.Lime),
                    new NamedColor("Maroon", Color.Maroon),
                    new NamedColor("Navy", Color.Navy),
                    new NamedColor("Olive", Color.Olive),
                    new NamedColor("Purple", Color.Purple),
                    new NamedColor("Red", Color.Red),
                    new NamedColor("Silver", Color.Silver),
                    new NamedColor("Teal", Color.Teal),
                    new NamedColor("White", Color.White),
                    new NamedColor("Yellow", Color.Yellow)
                };

            // Create ListView for the master page.
            ListView listView = new ListView
            {
                ItemsSource = namedColors
            };

            // Create the master page with the ListView.
            this.Master = new ContentPage
            {
                Title = "Color List",       // Title required!
                Content = new StackLayout
                {
                    Children = 
                    {
                        header, 
                        listView
                    }
                }
            };

            // Create the detail page using NamedColorPage
            NamedColorPage detailPage = new NamedColorPage(true);
            this.Detail = detailPage;

            // For Android & Windows Phone, provide a way to get back to the master page.
            if (Device.OS != TargetPlatform.iOS)
            {
                TapGestureRecognizer tap = new TapGestureRecognizer();
                tap.Tapped += (sender, args) =>
                    {
                        this.IsPresented = true;
                    };

                detailPage.Content.BackgroundColor = Color.Transparent;
                detailPage.Content.GestureRecognizers.Add(tap);
            }

            // Define a selected handler for the ListView.
            listView.ItemSelected += (sender, args) =>
                {
                    // Set the BindingContext of the detail page.
                    this.Detail.BindingContext = args.SelectedItem;

                    // Show the detail page.
                    this.IsPresented = false;
                };

            // Initialize the ListView selection.
            listView.SelectedItem = namedColors[0];
        }
    }
}

如果您想在Xaml中执行此操作，请参阅以下示例：

<强> RootPage

<MasterDetailPage xmlns="http://xamarin.com/schemas/2014/forms"       
    xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml" 
    xmlns:view="clr-namespace:MyApp.Views;assembly=MyApp"
    x:Class="MyApp.Views.RootPage">
    <MasterDetailPage.Master>
        <view:MainMenu />
    </MasterDetailPage.Master>
    <MasterDetailPage.Detail>
        <view:HomePage />
    </MasterDetailPage.Detail>
</MasterDetailPage>

<强>的MainMenu

<ContentPage xmlns="http://xamarin.com/schemas/2014/forms"
                       xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml"
                       x:Class="MyApp.Views.MainMenu">
    <Label Text="I should actually be a list or something" VerticalOptions="Center" HorizontalOptions="Center" />
</ContentPage>

<强>主页

<ContentPage xmlns="http://xamarin.com/schemas/2014/forms"
                       xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml"
                       x:Class="MyApp.Views.HomePage">
    <Label Text="Hello World" VerticalOptions="Center" HorizontalOptions="Center" />
</ContentPage>

Xamarin使用xaml创建具有多个详细视图的masterdetailpage

1 个答案: