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我在嘗試使通用組件顯示列表資源。我遇到了在HTML中實例化組件的問題。我正在使用answer來嘗試解決這個問題,但我覺得它不起作用。在構造函數中使用T創建通用組件
我有這樣的組件
<ion-list>
<ion-item-sliding *ngFor="let entity of entityList" #item>
<ion-item (click)="navigateToDetail(entity.id)">
<ion-avatar item-left>
<img src="http://modexenergy.com/wp-content/themes/modex_wp/img/avatar.png">
</ion-avatar>
<h2>{{ entity.email }}</h2>
<ion-icon name="arrow-forward" item-right></ion-icon>
</ion-item>
<ion-item-options side="right">
<button ion-button color="danger" (click)="delete(entity.id)">
<ion-icon name="trash"></ion-icon>Delete
</button>
</ion-item-options>
</ion-item-sliding>
</ion-list>
export class PageListBaseComponent<T extends IHasId> {
@Input() entityType: T;
@Input() detailPageType: any;
public entityList: T[];
constructor(public navCtrl: NavController, public navParams: NavParams, public baseProvider: ProviderBase<T>) {
baseProvider.getList().subscribe(entities => {
this.entityList = entities;
console.log(entities);
});
}
delete(id: number) {
console.log(id);
//this.baseProvider.deleteById(id).subscribe(result => {
// console.log(result);
//});
}
navigateToDetail(id: number) {
console.log('test ' + id)
this.navCtrl.push(this.detailPageType, { id })
}
}
我初始化它從我的用戶頁面,如下所示:
<ion-content padding>
<page-list-base [entityType]="userType" [detailPageType]="userDetailType">
</page-list-base>
</ion-content>
export class UsersPage {
public userType: User;
public userDetailType: ProfilePage;
constructor(public navCtrl: NavController, public navParams: NavParams) {
}
}
這不工作,因爲我的組件引用public baseProvider: ProviderBase<T>
在構造函數中Dependency Inject不能解決類型。
我想盡可能地重複使用它。我怎樣才能正確地初始化這個通用組件?如果這是不可能的,在T解決後我怎麼能晚點抓住baseProvider?