Exrin MasterDetailPage

Question

我在exrin中使用MasterDetailPage --这是我的ViewContainer公共类MainViewContainer : Exrin.Framework.ViewContainer，IMasterDetailContainer {私有只读MasterDetailPage r_MasterPage；

    public MainViewContainer(MenuStack i_MenuStack, MainStack i_MainStack)
        : base(eContainer.Main.ToString())
    {
        r_MasterPage = new MasterDetailPage();
        MasterDetailProxy masterProxy = new MasterDetailProxy(r_MasterPage);
        NativeView = masterProxy.View;
        Proxy = masterProxy;
        DetailStack = i_MainStack;
        MasterStack = i_MenuStack;
        RegionMapping.Add(eRegions.Menu, ContainerType.Master);
        RegionMapping.Add(eRegions.Main, ContainerType.Detail);
    }

    public IHolder MasterStack { get; set; }

    public IHolder DetailStack { get; set; }

    public IMasterDetailProxy Proxy { get; set; }

    public bool IsPresented
    {
        get
        {
            return r_MasterPage.IsPresented;
        }

        set
        {
            r_MasterPage.IsPresented = value;
        }
    }

    public void SetStack(ContainerType i_ContainerType, object i_Page)
    {
        switch (i_ContainerType)
        {
            case ContainerType.Detail:
                r_MasterPage.Detail = i_Page as Page;
                break;
            case ContainerType.Master:
                r_MasterPage.Master = i_Page as Page;
                break;
        }
    }
}

这是我的IMasterDetailProxy公共类MasterDetailProxy : IMasterDetailProxy {私有只读MasterDetailPage r_MasterPage；

    public MasterDetailProxy(MasterDetailPage i_MasterPage)
    {
        View = i_MasterPage;
        r_MasterPage = i_MasterPage;
    }

    public object DetailNativeView
    {
        get
        {
            return r_MasterPage.Detail;
        }

        set
        {
            r_MasterPage.Detail = value as Page;
        }
    }

    public object MasterNativeView
    {
        get
        {
            return r_MasterPage.Master;
        }

        set
        {
            Page page = value as Page;
            if(string.IsNullOrEmpty(page.Title))
            {
                page.Title = "Please set your MasterPage Title";
            }

            r_MasterPage.Master = page;
        }
    }

    public object View { get; set; }
}

我用它在主菜单上显示菜单，在细节部分显示页面。我的菜单视图是

<base:PageProxy xmlns="http://xamarin.com/schemas/2014/forms"
             xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml"
             xmlns:base="clr-namespace:Exrin.Base;assembly=Exrin.Base"
             xmlns:controls="clr-namespace:ImageCircle.Forms.Plugin.Abstractions;assembly=ImageCircle.Forms.Plugin.Abstractions"
             xmlns:control="clr-namespace:BeAttend.Control;assembly=BeAttend"
             x:Class="BeAttend.View.MenuView" Title="Menu">
  <base:PageProxy.Icon>
      <OnPlatform x:TypeArguments="FileImageSource">
          <On Platform="iOS" >Icon-Small.png</On>
      </OnPlatform>
  </base:PageProxy.Icon>
  <ContentPage.Content>
    <Grid BackgroundColor="Transparent">
        <Grid.RowDefinitions>
            <RowDefinition Height="200" />
            <RowDefinition Height="*" />
        </Grid.RowDefinitions>
        <Grid>
            <Image Source="menubg.jpg" Aspect="AspectFill" />
            <StackLayout Padding="0,20,0,0" HorizontalOptions="CenterAndExpand" VerticalOptions="CenterAndExpand" >
                <controls:CircleImage BorderColor="White" BorderThickness="2" Source="{Binding VisualState.User.Picture}" Aspect="AspectFit" WidthRequest="100" HeightRequest="100" />
                <Label Text="{Binding VisualState.User.Name}" TextColor="White" FontSize="Large" />
            </StackLayout>
        </Grid>
        <StackLayout Margin="20,20,20,0" Grid.Row="1" Spacing="15">
            <control:NavigationItem Text="Dashboard" Icon="fa-archive" Command="{Binding NavigationCommand}" CommandParameter="Dashboard" />
            <ContentView HeightRequest="1" BackgroundColor="Gray" />
            <control:NavigationItem Text="Beacons" Icon="fa-archive" Command="{Binding NavigationCommand}" CommandParameter="Beacons" />
            <ContentView HeightRequest="1" BackgroundColor="Gray" />
            <control:NavigationItem Text="Create event" Icon="fa-archive" Command="{Binding NavigationCommand}" CommandParameter="CreateEvent" />
            <ContentView HeightRequest="1" BackgroundColor="Gray" />
            <control:NavigationItem Text="My events" Icon="fa-archive" Command="{Binding NavigationCommand}" CommandParameter="MyEvents" />
            <ContentView HeightRequest="1" BackgroundColor="Gray" />
            <control:NavigationItem Text="Registered events" Icon="fa-archive" Command="{Binding NavigationCommand}" CommandParameter="RegisteredEvents" />
            <ContentView HeightRequest="1" BackgroundColor="Gray" />
            <control:NavigationItem Text="Attendance QR" Icon="fa-archive" Command="{Binding NavigationCommand}" CommandParameter="AttendanceQr" />
            <ContentView HeightRequest="1" BackgroundColor="Gray" />
            <control:NavigationItem Text="Join Event" Icon="fa-archive" Command="{Binding NavigationCommand}" CommandParameter="JoinEvent" />
            <ContentView HeightRequest="1" BackgroundColor="Gray" />
            <control:NavigationItem Text="Logout" Icon="fa-arrow-circle-left" Command="{Binding LogoutCommand}" />
        </StackLayout>
    </Grid>
  </ContentPage.Content>
</base:PageProxy>

我有两个问题: 1.在Android上我有自动的汉堡包菜单按钮，但是在iOS上我没有任何图标，我试图为iOS的菜单视图设置一个图标

<base:PageProxy.Icon>
      <OnPlatform x:TypeArguments="FileImageSource">
          <On Platform="iOS" >Icon-Small.png</On>
      </OnPlatform>
  </base:PageProxy.Icon>

在菜单视图上，但是它不工作。2.在iOS上，页面标题是“请设置您的MasterPage标题”(如果页面标题为空，则代理设置它)，但是您可以在菜单视图中看到我为页面设置了标题，这只发生在iOS上。OMC04Y0FreVRvVlE/view?usp=sharing

1. 当按下菜单上的链接时，我希望母版页消失，它目前停留在并隐藏部分详细信息页，直到我按下详细信息页。
2. 在细节页面上，我有一个后退按钮，所以如果我想导航到另一个页面，我必须首先按后退，然后我可以看到菜单图标来显示mater页面并选择另一个链接。我怎样才能更换后按钮，以始终显示汉堡包菜单按钮？这是我的堆栈 公共类MainStack : BaseStack { public MainStack(IViewService i_ViewService)：base(新NavigationProxy(新NavigationPage())，i_ViewService，eStack.Main，nameof(Views.eMain.Dashboard)) { ShowNavigationBar = true；} 受保护的覆盖void (){ NavigationMap(nameof(Views.eMain.Dashboard))；NavigationMap(nameof(Views.eMain.Beacons))；NavigationMap(nameof(Views.eMain.AddBeacon))；NavigationMap(nameof(Views.eMain.EditBeacon))；NavigationMap(nameof(Views.eMain.CreateEvent))；NavigationMap(nameof(Views.eMain.MyEvents))；EventsRegisteredViewModel>(nameof(Views.eMain.RegisteredEvents))；NavigationMap(nameof(Views.eMain.EditEvent))；NavigationMap(nameof(Views.eMain.ViewEvent))；NavigationMap(nameof(Views.eMain.AttendanceQr))；NavigationMap(nameof(Views.eMain.JoinEvent))；}

Answer 1

1. 如果您想在单击链接时删除母版页，您将发现在IMasterDetailContainer中有一个名为IsPresented的属性。将此设置为true或false，以手动显示或隐藏页面。
2. 如果您设置了ContentPages的标题，这将替换正在设置的任何默认标题。
3. 确保图标在参考资料文件夹中。另外，如果它仍未在iOS中显示，请将图标设置为详细信息导航或ContentPage。我记不起你要把它改到哪一个了。但如果你试一试，你就能找出哪一种有效。