【发布时间】：2019-11-22 04:16:12
【问题描述】：
我正在尝试将其设置为当用户“点击”每家餐厅的卡片时，它将打开一个页面（selected-card.page），可以在其中找到其他详细信息（菜单、价格等）。我不太确定如何完成这项工作，目前正在尝试使用服务中的函数来调用 API 以显示该餐厅。
我意识到我可能还远远没有完成这项工作，如果您有指南或教程可以帮助您随时将其发送给我。感谢您的帮助！
dining.page.html（带有卡片的页面，您可以单击以访问更多详细信息）
<ion-card (click)="onSelected(card)" class="welcome-card" *ngFor="let item of restaurantsService.restaurants">
<img class='image' src='{{ item.restaurant.featured_image }}' alt='' />
<ion-card-header>
<ion-card-title class='text'>{{ item.restaurant.name }}</ion-card-title>
<ion-card-subtitle class='text'>{{ item.restaurant.phone_numbers }}</ion-card-subtitle>
<ion-card-subtitle class='text'>{{ item.restaurant.location.address }}</ion-card-subtitle>
</ion-card-header>
</ion-card>
</ion-content>
dining.page.ts
import { ModalController } from '@ionic/angular';
import { RestaurantsService } from '../services/restaurants.service';
import { Observable } from 'rxjs';
import { SelectedCardPage } from '../selected-card/selected-card.page';
@Component({
selector: 'app-dining',
templateUrl: './dining.page.html',
styleUrls: ['./dining.page.scss'],
})
export class DiningPage implements OnInit {
constructor( private restaurantsService: RestaurantsService,
public modalCtrl: ModalController ) { };
ngOnInit() {}
async onSelected(card) {
const modal = await this.modalCtrl.create({
component: SelectedCardPage,
componentProps: { value: card }
});
return await modal.present();
}
ionViewWillEnter() {
this.restaurantsService.fetchRestaurants().subscribe();
}
}
selected-card.page.html
<ion-content>
<ion-card (click)="dismiss()" class="welcome-card" *ngFor="let item of restaurantsService.restaurants">
<img class='image' src='{{ item.restaurant.featured_image }}' alt='' />
<ion-card-header>
<ion-card-title class='text'>{{ item.restaurant.name }}</ion-card-title>
<ion-card-subtitle class='text'>{{ item.restaurant.phone_numbers }}</ion-card-subtitle>
<ion-card-subtitle class='text'>{{ item.restaurant.location.address }}</ion-card-subtitle>
</ion-card-header>
</ion-card>
</ion-content>
selected-card.page.ts
import { ModalController, NavParams } from '@ionic/angular';
import { RestaurantsService } from '../services/restaurants.service';
@Component({
selector: 'app-selected-card',
templateUrl: './selected-card.page.html',
styleUrls: ['./selected-card.page.scss'],
})
export class SelectedCardPage implements OnInit {
value: string;
constructor(private restaurantsService: RestaurantsService,
private modalCtrl: ModalController,
private navParams: NavParams) { }
ngOnInit() {
}
ionViewWillEnter() {
this.restaurantsService.fetchRestaurantDetails().subscribe();
}
ionViewDidLoad() {
this.value = this.navParams.get('value');
}
dismiss() {
this.modalCtrl.dismiss();
}
}
restaurant.service.ts
import { HttpClient } from '@angular/common/http';
import { Observable } from 'rxjs';
import { tap } from 'rxjs/operators';
@Injectable({
providedIn: 'root'
})
export class RestaurantsService {
public restaurants = [];
public providers = [];
constructor( public http: HttpClient ) { }
//initial fetchRestaurants that loads on opening dining page
fetchRestaurants() {
console.log('fetching restaurants');
let headers = {'content-type': 'application/json',
'accept': 'application/json',
'user-key': '7ae71880177b226bed309d0533717b4b'};
let url = 'https://developers.zomato.com/api/v2.1/search?entity_id=757&entity_type=city&count=20'
return this.http.get(url, {headers: headers}).pipe(tap(response => {
console.log(response);
this.restaurants = response['restaurants'];
console.log(this.restaurants);
}));
}
// used to obtain information/details on a restaurant when selected
fetchRestaurantDetails() {
console.log('getting restaurant details');
let headers = {'content-type': 'application/json',
'accept': 'application/json',
'user-key': '7ae71880177b226bed309d0533717b4b'};
let url = 'https://developers.zomato.com/api/v2.1/reviews?res_id=17266091'
return this.http.get(url, {headers: headers}).pipe(tap(response => {
console.log(response);
this.restaurants = response['restaurants'];
console.log(this.restaurants);
}));
}
}
【问题讨论】：
标签： angular typescript ionic-framework zomato-api