cordova-plugin-app-version插件的使用

来源：互联网发布：程序员和老师结婚编辑：程序博客网时间：2024/05/16 10:22

开发项目的时候自动更新功能呢，需要获取app的版本，cordova-plugin-app-version可以用来的获取版本号，可以用命令行：cordova plugin add cordova-plugin-app-version，或者在配置文件config.xml、package.json进行配置。
这里写图片描述

这里写图片描述

cordova.getAppVersion.getVersionNumber()就可以获取当前的版本

  getServerVersion: function (curVersion) {    var deferred = $q.defer(),      promise;    if (curVersion) {      promise = $http.get(CONFIG.url.version, {params: {version: curVersion}});    } else {      promise = $http.get(CONFIG.url.version);    }    promise.then(function (response) {      deferred.resolve(response.data.data.versions);    }).catch(function (error) {      deferred.reject(error);    });    return deferred.promise;  },  getLocalVersion: function () {    var deferred = $q.defer();    **cordova.getAppVersion.getVersionNumber()**.then(function (localVersion) {      deferred.resolve(localVersion);    }).catch(function (error) {      deferred.reject(error);    });    return deferred.promise;  },  checkUpdate: function () {    var self = this,      localVersion;    this.getLocalVersion().then(function (response) {      localVersion = response;      return self.getServerVersion(response);    }).then(function (serverVersions) {      var latestVersion = _.isArray(serverVersions) ? _.first(serverVersions) : serverVersions,        laterThanServer = commonService.laterThan(localVersion, latestVersion.number),        isForceUpdate = _.some(_.initial(serverVersions), function (item) {          return item.flag === 1;        });      commonService.setItem("latestVersion", latestVersion);      return laterThanServer && isForceUpdate;    }).then(function (isForce) {      isForce && commonService.confirm(i18n.need_update_label, i18n.force_update_tip).then(function (res) {        if (res) {          checkUpdateEnv(isForce);        } else {          ionic.Platform.exitApp();        }      });    }).catch(function (reason) {      console.log("version compare filed : " + JSON.stringify(reason));    });  }

但是有一点需要注意的是执行此语句，必须等待DOM元素加载完毕。简单一点就是，若是在传统的javaScript中用到，需要配合着window.onload使用，或者 ionic.Platform.ready中

   ionic.Platform.ready(function () {      if (window.cordova && window.cordova.plugins && window.cordova.plugins.Keyboard) {        window.cordova.plugins.Keyboard.hideKeyboardAccessoryBar(false);        window.cordova.plugins.Keyboard.disableScroll(true);        apiService.checkUpdate();      }      try {        $cordovaStatusbar.style(0);        checkNetworkState();        checkSystemVersion();        $ionicPlatform.is("Android") && $ionicPlatform.registerBackButtonAction(registerBackButton, 101);      } catch (e) {        console.warn("some thing error when app launched: " + e.message);      }      autoLogin();    });

相关文章链接：http://www.ionic.ren/2015/11/23/ionic%E5%B8%B8%E7%94%A8%E6%8F%92%E4%BB%B6-ngcordovacordovaappversion%E7%89%88%E6%9C%AC%E6%9B%B4%E6%96%B0%E6%8F%92%E4%BB%B6/

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