我从 NG4 -> NG6 重写库(使用 angular-cli 6)。这个库改变了动态角度组件,所以我使用ComponentFactoryResolver
,在这里我卡住了。当我添加ComponentFactoryResolver
到构造函数时:
constructor(
private componentFactoryResolver: ComponentFactoryResolver
) {}
并在目标应用程序中构建 lib(成功)(我从本地文件将我的 lib 添加到 package.json 中)我有这个错误:
StaticInjectorError(AppModule)[MyLibComponent-> ComponentFactoryResolver]:
StaticInjectorError(Platform: core)[MyLibComponent-> ComponentFactoryResolver]:
NullInjectorError: No provider for ComponentFactoryResolver!
at NullInjector.push../node_modules/@angular/core/fesm5/core.js.NullInjector.get (core.js:979)
at resolveToken (core.js:1232)
at tryResolveToken (core.js:1182)
at StaticInjector.push../node_modules/@angular/core/fesm5/core.js.StaticInjector.get (core.js:1077)
at resolveToken (core.js:1232)
at tryResolveToken (core.js:1182)
at StaticInjector.push../node_modules/@angular/core/fesm5/core.js.StaticInjector.get (core.js:1077)
at resolveNgModuleDep (core.js:9238)
at NgModuleRef_.push../node_modules/@angular/core/fesm5/core.js.NgModuleRef_.get (core.js:9919)
没有ComponentFactoryResolver
其他东西可以正常工作
完整组件:
import { Component, ComponentFactoryResolver, AfterContentInit, ViewChild, Inject, Input, InjectionToken } from '@angular/core';
import { AbHostDirective } from './../directives/ab-host.directive';
export const AB_COMPONENTS = new InjectionToken('AB_COMPONENTS');
@Component({
selector: 'lib-ab',
template: `<ng-template lib-ab-host></ng-template>`,
styles: []
})
export class MyLibComponent implements AfterContentInit {
@ViewChild(AbHostDirective) abHost: AbHostDirective;
@Input() globalConfiguration: any;
@Input() domain = '';
constructor(
@Inject(AB_COMPONENTS) private $configuredComponents: any,
private componentFactoryResolver: ComponentFactoryResolver
) {}
ngAfterContentInit() {
const currentConfiguration = this.$configuredComponents[this.domain];
if (!currentConfiguration) {
console.error('No component for: ', + this.domain);
return;
}
const randomIndex = Math.floor(Math.random() * currentConfiguration.length);
const componentFactory = this.componentFactoryResolver.resolveComponentFactory(currentConfiguration[randomIndex]);
const viewContainerRef = this.abHost.viewContainerRef;
viewContainerRef.clear();
const componentRef = viewContainerRef.createComponent(componentFactory);
const instance = <any>componentRef.instance;
instance.globalConfiguration = this.globalConfiguration;
}
}