setTimeout(() => {
context.draw(true,()=>{
wx.canvasToTempFilePath({
x: 0,
y: 0,
width: 340,
height: 500,
destWidth: 680,
destHeight: 1000,
canvasId: 'share',
success: function (res) {
console.log(res.tempFilePath)
wx.saveImageToPhotosAlbum({
filePath: res.tempFilePath,
success: (res) => {
console.log(res)
that.setData({
showModal: false
})
wx.hideToast({
complete: (res) => {},
fail: (res) => {},
success: (res) => {},
})
},
fail: (err) => {
console.log(err)
that.setData({
showModal: false
})
wx.hideToast({
complete: (res) => {},
fail: (res) => {},
success: (res) => {},
})
}
})
},
fail: function (e) {
console.log(e)
}
})
});
}, 1000);
},
这是运行代码 在开发工具上面能导出图片但是在真实手机上面就运行不起来
canvasContext.drawImage(photoFilePath, - width / 2, - height / 2, width, height); canvasContext.draw(false, function () { // 将生成的canvas图片，转为真实图片 setTimeout(() => {/* 大坑，Android真机上必须setTimeout延时后保存，不然会出错~~~开发者工具上无问题，ios下也无问题 */ wx.canvasToTempFilePath({ }), 2500); });draw的回调函数没有执行，目前这个问题无解，官方也不修复，目前的粗暴解决办法就是draw后面用settimeoutl来执行导出函数