在管道和指令中使用ReflectiveInjector工厂来获取当前组件的实例,然后使用ComponentFactoryResolver来获取关联的组件工厂实例。这种方法可以避免在应用程序构建期间生成工厂实例的问题。代码示例:
// 在管道构造函数中注入ReflectiveInjector constructor(private injector: ReflectiveInjector) {}
// 在管道的transform方法中获取组件工厂 transform(value: any, args?: any): any { const componentFactoryResolver = this.injector.get(ComponentFactoryResolver); const componentFactory = componentFactoryResolver.resolveComponentFactory(MyComponent); // ... }
// 在指令构造函数中注入ReflectiveInjector constructor(private injector: ReflectiveInjector) {}
// 在指令的ngOnInit方法中获取组件工厂 ngOnInit() { const componentFactoryResolver = this.injector.get(ComponentFactoryResolver); const componentFactory = componentFactoryResolver.resolveComponentFactory(MyComponent); // ... }