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[英]In Xamarin Forms UnityServiceLocator namespace not found (Unity Dependency Injection & IoC containers)
[英]Xamarin Forms: Prism — Issue with using unity IoC?
在使用Prism MVVM Framework的xamarin表单应用程序中,应如何使用IoC容器? 没有
Container.Resolve<Interface,Implentation>
我认为我们需要解决IoC并在app.xaml.cs中进行初始化。 但是我找不到合适的方法。 谁能帮我吗 ?
更新:
页:
<?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:prism="clr-namespace:Prism.Mvvm;assembly=Prism.Forms"
prism:ViewModelLocator.AutowireViewModel="True"
x:Class="CoC.Core.Views.MenuPage">
<ContentPage.Content>
<ListView x:Name="info"
SeparatorVisibility="None"
SeparatorColor="Transparent"
HasUnevenRows="false"
RowHeight="50" BackgroundColor="#485366" >
<ListView.ItemTemplate>
<DataTemplate>
<!--<ImageCell Text="{Binding Title}" ImageSource="{Binding IconSource}" /> -->
<ViewCell>
<!--<Label Text="{Binding Title}" />-->
</ViewCell>
</DataTemplate>
</ListView.ItemTemplate>
</ListView>
</ContentPage.Content>
</ContentPage>
ViewModel:
using Prism.Commands;
using Prism.Mvvm;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Collections.ObjectModel;
using Prism.Navigation;
namespace CoC.Core.ViewModels
{
public class MenuPageViewModel : BindableBase , INavigationAware
{
IMenuList _menuList;
public ObservableCollection<MenuItem> ConductList { get; set; }
public void OnNavigatedFrom(NavigationParameters parameters)
{
//throw new NotImplementedException();
}
public void OnNavigatedTo(NavigationParameters parameters)
{
//throw new NotImplementedException();
}
public MenuPageViewModel(IMenuList MenuList)
{
_menuList = MenuList;
ConductList = _menuList.GetMenuList();
}
}
}
APP:
using Prism.Unity;
using CoC.Core.Views;
namespace CoC.Core
{
public partial class App : PrismApplication
{
protected override void OnInitialized()
{
InitializeComponent();
//NavigationService.NavigateAsync("MainPage?title=Hello%20from%20Xamarin.Forms");
NavigationService.NavigateAsync("MenuPage");
}
protected override void RegisterTypes()
{
Container.RegisterTypeForNavigation<MainPage>();
Container.RegisterTypeForNavigation<RootPage>();
Container.RegisterTypeForNavigation<MenuPage>();
}
}
}
运行此代码时,我在IOS pro的Main.cs中遇到错误错误:Foundation.MonoTouchException NSInternalLnconistencyException原因:应用程序窗口应在应用程序末尾具有根视图控制器。
您正在寻找的是Unity中的扩展方法。 您需要将using Microsoft.Practices.Unity
命名空间添加到代码文件中。 您可以使用Container.Register<IService,MyService>()
来注册服务。
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