Matt Raible преди 7 години
родител
ревизия
1c1e8866d7
променени са 2 файла, в които са добавени 166 реда и са изтрити 3 реда
  1. 166
    3
      TUTORIAL.md
  2. BIN
      static/good-beers-ui.png

+ 166
- 3
TUTORIAL.md Целия файл

@@ -322,6 +322,169 @@ The `LoginPage` tries to auto-focus onto the `email` field when it loads. To aut
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 <preference name="KeyboardDisplayRequiresUserAction" value="false" />
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 ```
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+Check your changes into Git.
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+
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+```
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+git add .
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+git commit -m "Add Stormpath"
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+```
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+
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+## Build a Beer UI
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+
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+Run `ionic generate page beer` to create a component and a template to display the list of good beers. 
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+
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+Run `ionic generate provider beer-service` to create a service to fetch the beer list from the Spring Boot API.
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+
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+Change `src/providers/beer-service.ts` to use have a `getGoodBeers()` method.
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+
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+```typescript
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+import { Injectable } from '@angular/core';
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+import { Http, Response } from '@angular/http';
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+import 'rxjs/add/operator/map';
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+import { Observable } from 'rxjs';
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+import { StormpathConfiguration } from 'angular-stormpath';
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+
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+@Injectable()
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+export class BeerService {
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+  public API;
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+  public BEER_API;
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+
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+  constructor(public http: Http, public config: StormpathConfiguration) {
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+    this.API = config.endpointPrefix;
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+    this.BEER_API = this.API + '/beers';
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+  }
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+
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+  getGoodBeers(): Observable<any> {
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+    return this.http.get(this.API + '/good-beers')
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+      .map((response: Response) => response.json());
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+  }
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+}
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+```
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+
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+Modify `beer.html` to 
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+
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+```html
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+<ion-header>
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+  <ion-navbar>
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+    <ion-title>Good Beers</ion-title>
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+  </ion-navbar>
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+
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+</ion-header>
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+
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+<ion-content padding>
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+  <ion-list>
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+    <ion-item *ngFor="let beer of beers" >
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+      <ion-item>
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+        <h2>{{beer.name}}</h2>
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+      </ion-item>
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+    </ion-item>
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+  </ion-list>
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+</ion-content>
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+```
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+
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+
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+Modify `beer.ts` to
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+
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+```typescript
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+import { Component } from '@angular/core';
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+import { BeerService } from '../../providers/beer-service';
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+
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+@Component({
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+  selector: 'page-beer',
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+  templateUrl: 'beer.html',
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+  providers: [BeerService]
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+})
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+export class BeerPage {
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+  private beers: Array<any>;
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+
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+  constructor(public beerService: BeerService) {
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+  }
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+
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+  ionViewDidLoad() {
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+    this.beerService.getGoodBeers().subscribe(beers => {
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+      this.beers = beers;
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+    })
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+  }
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+}
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+```
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+
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+Add some fun with Giphy! Run `ionic generate provider giphy-service`. Replace the code in `src/providers/giphy-service.ts` with the following TypeScript:
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+
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+```typescript
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+import { Injectable } from '@angular/core';
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+import { Http, Response } from '@angular/http';
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+import { Observable } from 'rxjs';
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+
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+@Injectable()
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+// http://tutorials.pluralsight.com/front-end-javascript/getting-started-with-angular-2-by-building-a-giphy-search-application
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+export class GiphyService {
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+
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+  giphyApi = 'https://api.giphy.com/v1/gifs/search?api_key=dc6zaTOxFJmzC&q=';
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+
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+  constructor(public http: Http) {
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+  }
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+
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+  get(searchTerm): Observable<any> {
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+    let apiLink = this.giphyApi + searchTerm;
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+    return this.http.request(apiLink).map((res: Response) => {
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+      let results = res.json().data;
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+      if (results.length > 0) {
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+        return results[0].images.original.url;
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+      } else {
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+        return 'https://media.giphy.com/media/YaOxRsmrv9IeA/giphy.gif'; // dancing cat for 404
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+      }
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+    });
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+  }
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+}
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+```
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+
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+Update `beer.ts` to take advantage of `GiphyService`:
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+
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+```typescript
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+import { Component } from '@angular/core';
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+import { BeerService } from '../../providers/beer-service';
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+import { GiphyService } from '../../providers/giphy-service';
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+
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+@Component({
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+  selector: 'page-beer',
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+  templateUrl: 'beer.html',
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+  providers: [BeerService, GiphyService]
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+})
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+export class BeerPage {
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+  private beers: Array<any>;
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+
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+  constructor(public beerService: BeerService, public giphyService: GiphyService) {
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+  }
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+
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+  ionViewDidLoad() {
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+    this.beerService.getGoodBeers().subscribe(beers => {
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+      this.beers = beers;
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+      for (let beer of this.beers) {
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+        this.giphyService.get(beer.name).subscribe(url => {
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+          beer.giphyUrl = url
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+        });
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+      }
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+    })
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+  }
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+  ...
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+}
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+```
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+
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+Update `beer.html` to display the image retrieved:
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+
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+```html
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+<ion-item>
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+    <ion-avatar item-left>
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+      <img src="{{beer.giphyUrl}}">
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+    </ion-avatar>
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+    <h2>{{beer.name}}</h2>
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+</ion-item>
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+```
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+
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+If everything works as expected, you should see a page similar to the one below in your browser.
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+![Good Beers UI](./static/good-beers-ui.png)
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+
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 ## PWAs with Ionic
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 Ionic 2 ships with support for creating progressive web apps (PWAs). If you’d like to learn more about what PWAs are, see [Navigating the World of Progressive Web Apps with Ionic 2](http://blog.ionic.io/navigating-the-world-of-progressive-web-apps-with-ionic-2/). 
@@ -439,6 +602,6 @@ I’d love to learn how to add [Touch ID](https://ionicframework.com/docs/v2/nat
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 To learn more about Ionic, Angular, or Stormpath, please see the following resources:
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-[Get started with Ionic Framework](http://ionicframework.com/getting-started/)
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-[Getting Started with Angular](https://www.youtube.com/watch?v=Jq3szz2KOOs) A YouTube webinar by yours truly. ;)
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-[Stormpath Client API Guide](https://docs.stormpath.com/client-api/product-guide/latest/) 
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+* [Get started with Ionic Framework](http://ionicframework.com/getting-started/)
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+* [Getting Started with Angular](https://www.youtube.com/watch?v=Jq3szz2KOOs) A YouTube webinar by yours truly. ;)
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+* [Stormpath Client API Guide](https://docs.stormpath.com/client-api/product-guide/latest/) 

BIN
static/good-beers-ui.png Целия файл