Question

我正在使用此仓库中的ionic opentok插件， https://github.com/opentok/cordova-plugin-opentok 当然，我遵循了https://github.com/opentok/opentok-cordova-samples项目并构建了一个应用程序。但是，在进行中的视频会话中，我一直在努力切换相机。我的代码很简单，屏幕上有一个按钮，

<div class="controls-btn-inner-icon" (click)="toggleCamera()">
    <ion-icon ios="md-camera" md="md-camera"></ion-icon>
</div>

和方法

toggleCamera() {
    this.publisher.cycleVideo();
}

在调试控制台上，它给我错误

TypeError: this.publisher.cycleVideo is not a function
        [[StableObjectId]]:3
        message:"this.publisher.cycleVideo is not a function"
        ngDebugContext:DebugContext_ {view: Object, nodeIndex: 106, nodeDef: Object, …}
        ngErrorLogger:function () { … }
        stack:"TypeError: this.publisher.cycleVideo is not a function\n    at 
    VideoSessionPage.webpackJsonp.92.VideoSessionPage.toggleCamera (http://localhost:8080/build/main.js:936:24)\n    at Object.eval [as handleEvent] (ng:///AppModule/VideoSessionPage.ngfactory.js:247:31)\n    at handleEvent (http://localhost:8080/build/vendor.js:14275:155)\n    at callWithDebugContext (http://localhost:8080/build/vendor.js:15784:42)\n    at Object.debugHandleEvent [as handleEvent] (http://localhost:8080/build/vendor.js:15371:12)\n    at dispatchEvent (http://localhost:8080/build/vendor.js:10690:25)\n    at http://localhost:8080/build/vendor.js:11315:38\n    at HTMLDivElement.<anonymous> (http://localhost:8080/build/vendor.js:40626:53)\n    at t.invokeTask (http://localhost:8080/build/polyfills.js:3:15660)\n    at Object.onInvokeTask (http://localhost:8080/build/vendor.js:5437:33)"
    __proto__:Error {constructor: , name: "TypeError", message: "", …}

`

任何帮助将不胜感激。

Answer 1

此处是TokBox开发人员的传播者。

cycleVideo方法仅可用于OpenTok JS SDK。要在使用Cordova OpenTok Plugin时切换相机，请使用以下方法： publisher.setCameraPosition('front');或publisher.setCameraPosition('back');

使用该插件，您还可以使用cameraName属性作为一部分，使用前置或后置摄像机初始化Publisher对象initPublisher方法的properties参数的形式，如下所示：

const publisherProperties = {
  cameraName: 'front',
};
const publisher = OT.initPublisher(publisherProperties);

OpenTok Ionic 3-找不到Publisher.cycleVideo功能

1 个答案: