iOS 不支持 PushAsync，请使用 NavigationPage [英] PushAsync is not supported globally on iOS, please use a NavigationPage

问题描述

当我处理 ListView 项目的 Tap 事件时，一切正常，但是当我在 TabbedPage 中使用它时，它显示异常，请提供解决方案提前感谢这个问题.

Everything is working fine when I am handling the Tap event of a ListView item, but when I use this in a TabbedPage it shows the exception please provide a solution to this problem thanks in advance.

异常:iOS 不支持 PushAsync，请使用 NavigationPage.

Exception: PushAsync is not supported globally on iOS, please use a NavigationPage.

这是 Xaml 代码:

Here is the Xaml Code:

    <?xml version="1.0" encoding="utf-8"?>
    <ContentPage xmlns="http://xamarin.com/schemas/2014/forms" xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml" xmlns:local="clr-namespace:NavTest" x:Class="NavTest.NavTestPage" Title="Home">
        <ContentPage.Content>
            <StackLayout Orientation="Vertical" VerticalOptions="Center">
                <Label Text="Welcome to Xamarin Forms!" VerticalOptions="Center" HorizontalOptions="Center" />
                <!--<Button Text="Go to " BackgroundColor="Lime" VerticalOptions="Center" Clicked="Handle_Clicked" >
            </Button>-->
                <ListView x:Name="myListView" ItemSelected="Handle_ItemSelected">
                    <ListView.ItemTemplate>
                        <DataTemplate>
                            <ViewCell>
                                <Label Text="{Binding}" VerticalOptions="Center" HorizontalOptions="Center" />
                            </ViewCell>
                        </DataTemplate>
                    </ListView.ItemTemplate>
                </ListView>
            </StackLayout>
        </ContentPage.Content>
    </ContentPage>

这是 OnClick 处理程序:

Here's the OnClick Handler:

    async void Handle_Clicked(object sender, System.EventArgs e)
    {
        await  Navigation.PushAsync(new Page1());
    }                    

推荐答案

此错误仅在 iOS 中运行时会出现.

This error will come while running in iOS only.

在 App.cs Rootpage(起始页)中给出如下

 public App()
  {
      MainPage=new NavigationPage(new LoginPage());
  }

现在，我们可以全局使用 PushAsyn()

Now, We can use PushAsyn() in Globally

这篇关于iOS 不支持 PushAsync，请使用 NavigationPage的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！