-当前bug [图片] -代码片段 我在视频元数据加载完后使用 createSelectorQuery 获取视频的上下文， 使用下面代码绘制到下面的节点上展示出来，但是安卓无法展示，IOS和开发者工具都可以，安卓需要点击一下播放再点击截图才行，  seekComplete: function () {       const {         canvasWidth,         canvasHeight,         video       } = this.data       const Offcanvas = wx.createOffscreenCanvas({         type: '2d',         width: canvasWidth,         height: canvasHeight,         compInst: this,       })       const context = Offcanvas.getContext('2d')       // console.log('离屏的canvas实例',canvas.getContext('2d'));       context.clearRect(0, 0, canvasWidth, canvasHeight)       context.drawImage(video, 0, 0, canvasWidth, canvasHeight)       console.log(context, 'Offcanvas', video);       setTimeout(() => {         wx.canvasToTempFilePath({           x: 0,           y: 0,           width: canvasWidth,           height: canvasHeight,           destWidth: canvasWidth,           destHeight: canvasHeight,           canvas: Offcanvas,           success: res => {             console.log('获取离屏canvas路径回调', res.tempFilePath);             this.setData({               coverImagePath: res.tempFilePath,             });             this.triggerEvent("captureSuccess", {               coverImagePath: res.tempFilePath,             });           },           fail: error => {             console.error('获取失败', error)           }         })       }, 300)