<canvas id="myCanvas" type="2d" style="width: 400px;height: 296px;">

<cover-view class="barrage-textFly">{{item.barrage_shootText}}</cover-view>

  </canvas>

无论我的<view>怎么设置，都会被canvas 遮挡,设置成cover-view还是不行

wxml:

.barrage-fly{

  position: fixed;

}

.barrage-textFly{

  position: fixed;

}

js:

socket.onMessage(function (e) {

var base64 = util.arrayBufferToBase64(e.data);

var img = canvas.createImage();

img.onload = () => {

  ctx.drawImage(img,0,0);

};

img.src = base64;

});