uni-app+猫框多图异步上传与显示loading的解决方案

Procedure upImage
 Local oResult
 oResult=GetUpFile()      &&返回为集合对象     
 cFilename=oResult.ofieldcoll.Item("fileData").filename  &&文件名 跟上传name(微信)对应 key (mui) 对应
 cExtName=Justext(cFilename)
 cFilename=Ttoc(Datetime(),1)+Right(Transform(Second()*1000),6)+"."+cExtname
 cMydata=oResult.ofieldcoll.Item("fileData").fielddata &&文件内容
 Strtofile(cMydata,getwwwrootpath("img\")+cFilename)
 TEXT TO lcResult NOSHOW TEXTMERGE PRETEXT 1+2
 {"errno":0,"errmsg":"ok","errorMsg":"ok","success":true,"file1":"<<cFilename>>"}
 ENDTEXT
 Return  lcResult
 Endproc

uni.chooseImage({                      
 count: 5 ,

 success: (res) => {
 //开始上传 

 var task=[]; //建立任务数组                     
 res.tempFilePaths.forEach(function(row,index){
 var tmptask=that.upfile2(row);
 task.push(tmptask);
 })
 uni.showLoading({   
 title:"正在上传"
 })
 Promise.all(task).then((result) => {
 uni.hideLoading()   ;
 console.log(result)               
 //方案一:全部成功再显示 方案二:成功一条,显示一条
 result.forEach(function(row,index){
 that.imageList.push(serverurl+"img/"+row.file1)     
 })
 }).catch((error) => {
 uni.hideLoading()   ;   
 uni.showModal({
 title:"猫框软件",
 content:error,
 showCancel:false
 })
 console.log(error)
 })
 }
 })
upfile2:function(imageSrc){
 var that=this;
 return new Promise((resolve, reject) => {                   
 uni.uploadFile({
 url: serverurl+"ctl_master.fsp?proc=upImage",
 name: "fileData",
 filePath: imageSrc,
 fileType: 'image',                         
 success: (res) => { 
 if(res.statusCode!=200){                        
 reject("上传失败");
 }
 var oResult=JSON.parse(res.data);
 if(oResult.errno!=0){
 reject(oResult.errmsg);
 }                           
 //that.imageList.push(serverurl+"img/"+oResult.file1);  //上传一条就显示
 resolve(oResult);                   
 },
 fail: (err) => {                          
 reject(err.errMsg);                             
 }
 });                 
 }) //promise
}

[{"errno":0,"errmsg":"ok","errorMsg":"ok","success":true,"file1":"文件名"},
{"errno":0,"errmsg":"ok","errorMsg":"ok","success":true,"file1":"文件名"},
]