- 当前 Bug 的表现（可附上截图）

- 预期表现

开发者工具中不draw，就不会生效，真机（安卓 mix2s Android9版本）中测试时发现开启draw不生效，关闭直接导出图片会生效

- 复现路径

- 提供一个最简复现 Demo

wx.canvasPutImageData({

canvasId: 'canvas1',

data: imgData.data,

x: 0,

y: 0,

width: width,

height: height,

success: function(res) {

console.log('log')

// ctx.draw(true, () => {

console.log('create img')

wx.canvasToTempFilePath({

x: 0,

y: 0,

width: width,

height: height,

destWidth: 3 * width,

destHeight: 3 * height,

canvasId: 'canvas1',

success: function(res) {

console.log(res)

},

fail: function(res) {},

complete: function(res) {},

}, that)

// })

},

fail: function(res) {},

complete: function(res) {},

})