真机上canvasToTempFilePath总提示no image
WXML
<canvas canvas-id=“myCanvas” />
JS
const ctx = wx.createCanvasContext(‘myCanvas’);
ctx.setFillStyle("#FECD7E");
ctx.fillRect(0, 0, 100, 200);
ctx.save();
wx.canvasToTempFilePath({
canvasId: ‘myCanvas’,
success: function (res) {
console.log(res.tempFilePath)
},
fail: function (e) {
wx.showModal({
title: ‘保存临时文件失败’,
content: e.errMsg,
})
}
})
就这么简单的代码,保存到临时文件时总是失败,提示no image,在安卓上可以,在iPhone 7 Plus最新版微信上不可以,是哪里问题