angular2-seed-advanced（Android 设备）中的 Telerik-UI 侧抽屉答案

【问题标题】：Telerik-UI Side Drawer in angular2-seed-advanced (Android Device)angular2-seed-advanced（Android 设备）中的 Telerik-UI 侧抽屉
【发布时间】：2017-01-22 11:35:04
【问题描述】：

我试图让它工作，但它只会给我以下错误。我为 nativescript-groceries 应用程序做了几乎相同的事情，但是 angular2-seed-advanced 的架构有些不同，似乎是 nativescript 和种子项目和 Telerik-ui 之间某处的依赖注入问题。

感谢任何帮助：

异常：错误 /data/data/com.yourdomain.appname/files/app/app/components/app.component.tns.html:0:0 原始异常：TypeError：无法读取未定义的属性“android” 原始堆栈跟踪： TypeError：无法读取未定义的属性“android” 在 RadSideDrawer.initOldDrawer (/data/data/com.yourdomain.appname/files/app/tns_modules/nativescript-telerik-ui/sidedrawer/sidedrawer.js:91:40) 在 RadSideDrawer._createUI (/data/data/com.yourdomain.appname/files/app/tns_modules/nativescript-telerik-ui/sidedrawer/sidedrawer.js:147:18) 在 RadSideDrawer.View._onContextChanged (/data/data/com.yourdomain.appname/files/app/tns_modules/ui/core/view.js:197:14) 在 RadSideDrawer.View._onAttached (/data/data/com.yourdomain.appname/files/app/tns_modules/ui/core/view.js:149:14) 在 Page.View._addViewCore (/data/data/com.yourdomain.appname/files/app/tns_modules/ui/core/view.js:125:18) 在 Page.View._addView (/data/data/com.yourdomain.appname/files/app/tns_modules/ui/core/view-common.js:952:14) 在 Page.Object.defineProperty.set [作为内容] (/data/data/com.yourdomain.appname/files/app/tns_modules/ui/content-view/content-view.js:19:22) 在 ViewUtil.insertChild (/data/data/com.yourdomain.appname/files/app/tns_modules/nativescript-angular/view-util.js:56:28) 在 ViewUtil.createAndAttach (/data/data/com.yourdomain.appname/files/app/tns_modules/nativescript-angular/view-util.js:103:18) 在 ViewUtil.createView (/data/data/com.yourdomain.appname/files/app/tns_modules/nativescript-angular/view-util.js:110:25) 错误上下文： [对象对象]

这是我的更改

nativescript/package.json

### Added dependency
"nativescript-telerik-ui": "^1.3.1",

nativescript/app/native.module.ts

...
import {SIDEDRAWER_PROVIDERS} from 'nativescript-telerik-ui/sidedrawer/angular';
... 
@NgModule({
  ...
  providers: [
    NS_ANALYTICS_PROVIDERS,
    ### Added sidedrawer providers
    SIDEDRAWER_PROVIDERS,
    { provide: RouterExtensions, useClass: TNSRouterExtensions }
  ],
  ...
})

export class NativeModule { }

nativescript/app/pages/app/app.component.ts：

...
import {Inject, ChangeDetectorRef} from '@angular/core';
...
import {Page} from 'ui/page';
...
export class NSAppComponent extends AppComponent {
  constructor(
    @Inject(Page) private _page: Page,
    private _changeDetectionRef: ChangeDetectorRef,
    @Inject(AnalyticsService) public analytics: AnalyticsService,
    @Inject(LogService) private log: LogService,
    @Inject(Store) private store: Store<any>,
    @Inject(Router) private router: Router)
  {
    // ### ADDED Page and ChangeDetectionRef
    super(_page, _changeDetectionRef, analytics, log);
    ...

nativescript/app/app/components/app.component.ts

...
import {ViewChild, ChangeDetectorRef, ChangeDetectionStrategy, AfterViewInit} from '@angular/core';
... 
import {
  SIDEDRAWER_DIRECTIVES,
  RadSideDrawerComponent,
  SideDrawerType
} from 'nativescript-telerik-ui/sidedrawer/angular';
import {DrawerTransitionBase, PushTransition} from 'nativescript-telerik-ui/sidedrawer';
import {Page} from 'ui/page';
...
@BaseComponent(
  {
    moduleId       : module.id,
    selector       : 'sd-app',
    templateUrl    : 'app.component.html',
    directives     : [SIDEDRAWER_DIRECTIVES],
    changeDetection: ChangeDetectionStrategy.Default // Everything else uses OnPush
  }
)
export class AppComponent implements AfterViewInit {
  private _currentNotification: string;
  private _sideDrawerTransition: DrawerTransitionBase;

  @ViewChild(RadSideDrawerComponent) public drawerComponent: RadSideDrawerComponent;
  private drawer: SideDrawerType;

  constructor(
    private page: Page,
    private changeDetectionRef: ChangeDetectorRef,
    public analytics: AnalyticsService,
    public logger: LogService)
  {
    logger.debug(`Config env: ${Config.ENVIRONMENT().ENV}`);
    this.page.on("loaded", this.onLoaded, this);
  }

  ngAfterViewInit() {
    this.drawer = this.drawerComponent.sideDrawer;
    this.changeDetectionRef.detectChanges();
  }


  public onLoaded(args) {
    this._sideDrawerTransition = new PushTransition();
  }

  public get sideDrawerTransition(): DrawerTransitionBase {
    return this._sideDrawerTransition;
  }

  public get currentNotification(): string {
    return this._currentNotification;
  }

  public openDrawer() {
    this.drawer.showDrawer();
  }

  public onDrawerOpening() {
    console.log("Drawer opening");
    this._currentNotification = "Drawer opening";
  }

  public onDrawerOpened() {
    console.log("Drawer opened");
    this._currentNotification = "Drawer opened";
  }

  public onDrawerClosing() {
    console.log("Drawer closing");
    this._currentNotification = "Drawer closing";
  }

  public onDrawerClosed() {
    console.log("Drawer closed");
    this._currentNotification = "Drawer closed";
  }

}

nativescript/app/app/components/app.component.tns.html

<RadSideDrawer #drawer>
  <StackLayout tkDrawerContent class="sideStackLayout">
    <StackLayout class="sideTitleStackLayout">
      <Label text="Navigation Menu"></Label>
    </StackLayout>
    <StackLayout class="sideStackLayout">
      <Label text="MenuItemA" ></Label>
      <Label text="MenuItemB" ></Label>
      <Label text="MenuItemC" ></Label>
    </StackLayout>
  </StackLayout>
  <StackLayout tkMainContent>
    <!-- nested original content in Drawer -->
    <ActionBar title="Test" class="action-bar">
      <ActionItem ios.position="right" android.position="popup">
        <Button [text]="'MENU' | translate" (tap)=openDrawer() class="action-btn"></Button>
      </ActionItem>
      <ActionItem nsRouterLink="/about" ios.position="right" android.position="popup">
        <Button [text]="'ABOUT' | translate" class="action-btn"></Button>
      </ActionItem>
    </ActionBar>
    <StackLayout class="container">
      <lang-switcher></lang-switcher>
      <ScrollView>
        <page-router-outlet></page-router-outlet>
      </ScrollView>
    </StackLayout>
  </StackLayout>

nativescript/app/app/components/app.component.tns.css

.sideStackLayout {
  background-color: white;
}

【问题讨论】：

您好，来自 NativeScript 团队的开发人员。今天我们发布了最新的 1.4.0 版本的 nativescript-telerik-ui 插件，你能尝试用最新版本测试描述的问题吗？这里可以看到最新的sdk示例github.com/telerik/nativescript-ui-samples-angular
嗨弗拉基米尔。我尝试了 1.4.0，但问题仍然存在。但我意识到这可能是添加抽屉的错误位置。 @Inject(Page) 可能仅适用于通过路由到的 Page，而不适用于包含的 app.component。
嗯...将抽屉移动到“关于”页面（通过 page-router-outlet 加载）会导致相同的错误。事实上，即使不改变 about.component.ts 而只是将添加到 about.component.tns.html 已经抛出错误。
同1.4.1
好的，让它工作，似乎 tns livesync 并不完全热衷于“实时”同步，请参阅我自己的答案

标签： android telerik nativescript angular2-nativescript nativescript-telerik-ui

【解决方案1】：

好的，让它工作并想分享这个，因为它不是很简单，也不是特别有据可查...

随着 nativescript-telerik-ui 1.4.1 和 Angular 2.0.0 最终版本的发布，这实际上非常容易。