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uni.getUpdateManager()

This API returns a globally unique version update manager object: updateManager, which is used to manage applet updates.

App updates do not use this API, see also the documentation:

• Whole package update: https://ask.dcloud.net.cn/article/34972
• Hot update of resource files (wgt upgrade): https://ask.dcloud.net.cn/article/35667

Platform Difference Description

App	H5	微信小程序	支付宝小程序	百度小程序	抖音小程序、飞书小程序	QQ小程序	快手小程序	京东小程序
x	x	√	√	√	√	√	√	√

List of methods of the updateManager object:

Method	Parameters	Description
onCheckForUpdate	callback	When the new version information is requested from the applet background, a callback will be made
onUpdateReady	callback	When the new version is downloaded, it will call back
onUpdateFailed	callback	When the download of the new version fails, a callback will be made
applyUpdate		When the new version is downloaded, calling this method will force the current applet to apply the new version and restart

onCheckForUpdate(callback) callback result description:

property	type	description
hasUpdate	Boolean	Is there a new version

CODE EXAMPLE

const updateManager = uni.getUpdateManager();

updateManager.onCheckForUpdate(function (res) {
  // Callback for requesting new version information
  console.log(res.hasUpdate);
});

updateManager.onUpdateReady(function (res) {
  uni.showModal({
    title: '更新提示',
    content: '新版本已经准备好，是否重启应用？',
    success(res) {
      if (res.confirm) {
        // The new version has been downloaded, call applyUpdate to apply the new version and restart
        updateManager.applyUpdate();
      }
    }
  });

});

updateManager.onUpdateFailed(function (res) {
  // Failed to download new version
});