MUI H5+ app自动更新思路与实现

1. {   
2.     "state": "yes",//是否自动更新   
3.     "mark": "1.0.6",//版本号   
4.     "url": "http:\/\/XXXXXXXX\/APPobject\/mmm.apk"//更新的应用下载地址   
5. }  

t是你当前正在运行的APP的版本号
 

1. //检查自动更新   
2. function svn(t) {   
3.     var xhr_svn = new plus.net.XMLHttpRequest();   
4.     xhr_svn.onreadystatechange = function() {   
5.         if (xhr_svn.readyState == 4) {   
6.             if (xhr_svn.status == 200) {   
7.                 var res = JSON.parse(xhr_svn.responseText);   
8.                 if (res.state == 'yes') {   
9.                     if (res.mark != t) {   
10.                         var upr;   
11.                         plus.nativeUI.confirm( "有新版本发布了，是否件更新？", function(e){   
12.                             upr=(e.index==0)?"Y":"N";   
13. //                          console.log(upr);   
14.                             if(upr=="Y"){   
15.                             var wt = plus.nativeUI.showWaiting('下载更新中，请勿关闭');   
16.                             var url = res.url; // 下载文件地址   
17.                             var dtask = plus.downloader.createDownload(url, {}, function(d, status) {   
18.                                 if (status == 200) { // 下载成功   
19.                                     var path = d.filename;   
20.                                     console.log(d.filename);   
21.                                     plus.runtime.install(path);   
22.                                 } else { //下载失败   
23.                                     alert("Download failed: " + status);   
24.                                 }   
25.                             });   
26.                             dtask.start();   
27.                             }else{   
28.                                    
29.                             }   
30.                         }, "XXX系统", ["确认","取消"] );   
31.                            
32.                            
33.                     } else {   
34.                         console.log('最新');   
35.                     }   
36.                 }   
37.             } else {   
38.                 plus.nativeUI.toast( "网络连接错误！");   
39.             }   
40.         }   
41.     }   
42.     xhr_svn.open("GET", "http:/XXX/APPobject/imes/update.json");//这里的地址是上面json文件的地址   
43.     xhr_svn.send();   
44.    
45. }   

3.调用方法：在每次系统打开运行的时候执行上面的函数就可以

svn(版本号);