wechat.js
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Page({
onLoad(opt){
//导航栏自适应
let systemInfo = wx.getSystemInfoSync();
let reg = /ios/i;
let pt = 20;//导航状态栏上内边距
let h = 44;//导航状态栏高度
if (reg.test(systemInfo.system)) {
pt = systemInfo.statusBarHeight;
h = 44;
} else {
pt = systemInfo.statusBarHeight;
h = 48;
}
this.setData({
height: systemInfo.windowHeight,
statusBarHeight: pt,
titleBarHeight: h,
qrcode:opt.qrcode
})
},
saveimage(){
wx.downloadFile({
url: this.data.qrcode, //仅为示例，并非真实的资源
success (res) {
// 只要服务器有响应数据，就会把响应内容写入文件并进入 success 回调，业务需要自行判断是否下载到了想要的内容
if (res.statusCode === 200) {
wx.saveImageToPhotosAlbum({
filePath:res.tempFilePath,
success:(res)=>{
wx.showToast({
title:'保存成功',
duration:2000,
mask:true,
})
},
fail:(fail)=>{
}
})
}
}
})
}
})