iOS xcode离线打包 差量升级的时候

export function autoUpgrate (data, callback) {  
  var currentInfo = data  
  newVersion = data  
  if (!window.plus) return  
  var appid = window.plus.runtime.appid  
  window.plus.runtime.getProperty(appid, function (wgtinfo) {  
    var currentVer = wgtinfo.version  
    if ((+currentInfo.force === 1 && currentVer < currentInfo.ver) || +currentInfo.force === 2 && currentVer !== currentInfo.ver) {  
      // 有更新，  
      const isdownload = window.localStorage.getItem('isdownload') || 0  
      if (isdownload === '1') {  
        installRestatrt()  
      } else {  
        upgrade(currentInfo)  
      }  
    }  
  })  
}  
export function upgrade (data) {  
  var rooturl = data.address + data.filename + data.ver  
  var suffix = +data.type === 1 ? window.plus.os.name === 'iOS' ? '.ipa' : '.apk' : +data.type === 2 ? '.wgt' : '.wgtu'  
  if (suffix === '.ipa') {  

    suffix = '.wgt'  
  }  
  var downloadurl = rooturl + suffix  
  var download = window.plus.downloader.createDownload(downloadurl, {method: 'GET'}, function (f, status) {  
    if (status === 200) {  
      localStorage.removeItem('guide-lauchFlag')  
      // 下载完毕  
      window.localStorage.setItem('filename', f.filename)  
      if (data.force === '2') {  
        // 强制安装  
        Vue.$vux.alert.show({  
          title: '提示',  
          content: '版本(' + data.ver + ')已就绪，将立即启用',  
          onHide () {  
            window.plus.runtime.install(f.filename, {force: true}, function () {  
              // 安装成功  
              window.localStorage.removeItem('filename')  
              window.localStorage.removeItem('isdownload')  
              window.plus.runtime.restart()  
            }, function () {  
              // 安装失败  
              installCount++  
              if (installCount < 3) {  
                upgrade(data)  
              } else {  
                return  
              }  
            })  
          }  
        })  
      } else {  
        window.localStorage.setItem('isdownload', '1')   // 记录已经下载完毕状态  
      }  
    }  
  })  
  download.addEventListener('statechanged', function (task, status) {  
    if (status === 200) {  
      Vue.$vux.loading.hide()  
      localStorage.removeItem('guide-lauchFlag')  
    }  
  }, false)  
  download.start()  
}  
// 安装并重启  
export function installRestatrt () {  
  const filename = window.localStorage.getItem('filename') || ''  
  if (filename !== '') {  
    window.plus.runtime.install(filename, {force: true}, function () {  
      // 安装成功  
      window.localStorage.removeItem('filename')  
      window.localStorage.removeItem('isdownload')  
      window.plus.runtime.restart()  
    }, function () {  
      // 安装失败  
      installCount++  
      if (installCount < 3) {  
        upgrade(newVersion)  
      } else {  
        return  
      }  
    })  
  }  
}  
// 是否重新启动  
export function upgradeRestart () {  
  if (newVersion && newVersion.ver) {  
    Vue.$vux.confirm.show({  
      title: '新版本',  
      content: '版本(' + newVersion.ver + ')已就绪，将立即应用.',  
      onConfirm () {  
        installRestatrt()  
      }  
    })  
  }  
}

代码如上,但是会一直在走 安装, 重启, 安装, 重启.... 安卓正常,求指教