Javascript phonegap 3.2 camera.getPicture不显示摄像头视图

当我尝试navigator.camera.getPicture时，本机相机视图不会显示。要让它看起来像我必须重新打开应用程序或向上滑动（它会打开控制中心和相机视图）。 我正在使用Backbone.js和Ratchet

我的代码：

cameraClickHandler: function () {

       navigator.camera.getPicture(this.cameraSuccess, this.cameraFail,
                     quality: 75,
                     correctOrientation: true,
                     destinationType: Camera.DestinationType.FILE_URI,
                     saveToPhotoAlbum: true,
                     sourceType : Camera.PictureSourceType.CAMERA,
                     encodingType: Camera.EncodingType.JPEG,
                     targetWidth: 600,
                     targetHeight: 600
                   }
                 );
           }

我得到的错误是：

THREAD WARNING: ['Camera'] took '613.226807' ms. Plugin should use a background thread.

Snapshotting a view that has not been rendered results in an empty snapshot. Ensure your view has been rendered at least once before snapshotting or snapshot after screen updates.

有什么想法吗