HTML5开发的游戏在android原生环境上运行遇到问题，执行下面代码后图片能获取到，但是无法画出来调用drawImage后没有反应
var canvas = document.createElement(“canvas”);
canvas.width = 1000;
canvas.height = 2160;
var context = canvas.getContext(‘2d’);
//准备图片元素对象
var img = new Image();
img.src =“background-flip2.jpg”;
document.body.appendChild(canvas);
//当图片准备以后再绘制
img.onload = function() {
console.log("---------img onload img ="+img + " context =" + context);
context.drawImage(img,0,0);
}