Prism应用开发（二）——Prism应用程序初始化

Bootstrapper主要用来初始化Prism应用程序，其处理流程如图：

在Prism应用中，Bootstrapper的开发过程如下：

override基类的Bootstrapper

Unity基类提供了UnityBootstrapper和MefBootstrapper，可以根据实际的应用选用不同的Bootstrapper。

class DirectorBootstrapper : UnityBootstrapper    {        protected override System.Windows.DependencyObject CreateShell()        {            return Container.Resolve<Shell>();         }        protected override void InitializeShell()        {            Application.Current.MainWindow = (Window)Shell;            Application.Current.MainWindow.Show();         }    }

在App类中调用Bootstrapper的Run函数

public partial class App : Application    {        protected override void OnStartup(StartupEventArgs e)        {            base.OnStartup(e);            DirectorBootstrapper bootstrapper = new DirectorBootstrapper();            bootstrapper.Run();         }    }

配置ModuleCatalog
下面的代码使用plug in模式，将Module配置在Shell中。

protected override IModuleCatalog CreateModuleCatalog()        {            ModuleCatalog catalog = new ConfigurationModuleCatalog();            return catalog;        }

<configSections>    <section name="modules" type="Microsoft.Practices.Prism.Modularity.ModulesConfigurationSection, Microsoft.Practices.Prism"/>  </configSections>  <modules>    <module assemblyFile="Modules.DeviceManager.dll"             moduleType="Modules.DeviceManager.DeviceManagerModule, Modules.DeviceManager"             moduleName="DeviceManagerModule"/>  </modules>

实现模块接口

public class DeviceManagerModule : IModule    {        private IUnityContainer unityContainer;        private IRegionManager regionManager;         public DeviceManagerModule(IUnityContainer container, IRegionManager regionManager)        {            this.unityContainer = container;            this.regionManager = regionManager;         }        #region IModule Members        /// <summary>        /// IModule interface method called on module loading.        /// </summary>        public void Initialize()        {            this.regionManager.RegisterViewWithRegion(RegionNames.MainRegion,                () => this.unityContainer.Resolve<DeviceView>("DeviceView"));         }        #endregion    }