[游戏开发]WPF实现依赖注入

一、修改App.xaml

删除启动的Uri(StartupUri=“MainWindow.xaml”)

二、修改App.xaml.cs

1、集成Microsoft.Extensions.DependencyInjection
2、重写OnStartUp方法

            var services = new ServiceCollection();

            services.AddSingleton<MainWindow>();
            services.AddSingleton<UserControl1>();
            services.AddTransient<ITest, Test>();

            var serviceProvider = services.BuildServiceProvider();
            var window = serviceProvider.GetRequiredService<MainWindow>();

            window.Show();
            

三、ITest、Test添加Display方法

			public class Test : ITest
			{
			    public void Display()
			    {
			        MessageBox.Show("Test展示");
			    }
			}
			

四、MainWindow.xaml.cs

		    public partial class MainWindow : Window
		    {
		        private readonly UserControl1 _userControl1;
		
		        public MainWindow(UserControl1 userControl1)
		        {
		            _userControl1 = userControl1;
		
		            InitializeComponent();
		        }
		
		        private void MainWindow_OnInitialized(object? sender, EventArgs e)
		        {
		            TestControl.Children.Add(_userControl1);
		        }
		    }
		    

五、UserControl1.cs

		    public partial class UserControl1 : UserControl
		    {
		        private readonly ITest _test;
		
		        public UserControl1(ITest test)
		        {
		            _test = test;
		            InitializeComponent();
		        }
		
		
		        private void ButtonBase_OnClick(object sender, RoutedEventArgs e)
		        {
		            _test.Display();
		        }
		    }
		    

六、运行结果