离子3中的viebogular2 ima实现

Question

我在离子3上使用视频2。我遵循本教程(https://videogular.github.io/videogular2/modules/ima-ads/(进行实施。但是，当视频界试图在vgimaads.loadads方法上加载广告时，它会出现此错误"未定义GoogleTag"。我已经导入app.module.ts.中所需的每个模块。

imports: [
IonicModule.forRoot(MyApp,{
  backButtonText:'',
  backButtonIcon:'arrow-back',
  iconMode:'md',
  modalEnter: 'modal-slide-in',
  modalLeave: 'modal-slide-out',
}),
IonicStorageModule.forRoot(),
BrowserModule,
VgCoreModule,
VgControlsModule,
VgOverlayPlayModule,
VgBufferingModule,
VgImaAdsModule]

这是我页面的组件html。

 <ion-content>
    <vg-player id="demo-player">
        <vg-ima-ads
            [vgCompanion]="'companion-ad'"
            [vgCompanionSize]="[728, 90]"
            [vgNetwork]="'6062'"
            [vgUnitPath]="'iab_vast_samples'"
            [vgAdTagUrl]="'http://pubads.g.doubleclick.net/gampad/ads?sz=640x360&iu=/20277799247/Tv8-App-Preroll&impl=s&gdfp_req=1&env=vp&output=vast&unviewed_position_start=1&url=[referrer_url]&description_url=[description_url]&correlator='"
            [vgSkipButton]="'.skip-button'">
        </vg-ima-ads>
        <video [vgMedia]="media" #media id="singleVideo" preload="auto" crossorigin>
            <source [src]="liveStreamLink" type="application/x-mpegURL">
        </video>
    </vg-player>
    <div class='skip-button'>custom skip ad button</div>
    <div id="companion-ad"></div>
</ion-content>

另外，我在index.html的头部部分中添加了标签。但是显然，它在vgimaads.s.loadads上找不到该脚本的googletag属性。我该怎么办？

Answer 1

您需要在index.html

中声明ima脚本之前初始化googletag属性

<script>
    var googletag = googletag || {};
    googletag.cmd = googletag.cmd || [];
    (function() {
    var gads = document.createElement('script');
    gads.async = true; gads.type = 'text/javascript';
    gads.src = 'https://www.googletagservices.com/tag/js/gpt.js';
    var node = document.getElementsByTagName('script')[0];
    node.parentNode.insertBefore(gads, node);
    })();
</script>