Cordova app 检查更新 ----JS进行调用(二)

1.获取版本号需要添加插件

cordova plugin add https://github.com/whiteoctober/cordova-plugin-app-version.git

js 进行调用：

// 获取当前移动设备已经安装的版本
cordova.getAppVersion.getVersionNumber().then(function (version) {
    var versionCode = parseInt(version.toString().replace(/./g,''));
    console.log(versionCode);
    // 1.获取当前版本号
    // 2.获取服务器端的最新版本的数据源
    // 3.进行版本比较,如果当前的版本号与服务器的版本号不一致时,下载并安装最新的应用程序安装包
    Common.alert("温馨提示", "有新版本可供更新.
 1.界面美化 
 2.性能优化
 3.最新版本:"+versionCode);

});

2. 使用ajax进行获取服务中最新的安装包的详细信息

3.比较版本号是否一致，如果不一致，将会提示是否进行“更新”

4.如果选择"更新"，对执行安装包的下载

var url = "http://ftp-apk.pconline.com.cn/5014afca744eddb3fc7fe2d25d60aa29/pub/download/201010/HiMarket.apk?crazycache=1"; //可以从服务端获取更新APP的路径
var targetPath = "HiMarket.apk"; //APP下载存放的路径，可以使用cordova file插件进行相关配置
var trustHosts = true;
var options = {};
var ft = new FileTransfer();
ft.download(url, targetPath, successCallback, fileTransfer.downloadFailed, trustHosts, options);

5.将打开下载后的安装包

Android 平台下打开安装包文件的方式与iOS的方式不一样

Android使用本地路径进行打开

iOS需要进行跳转到app store 中进行下载更新

此时需要将FileOpener2.h中定义的方法添加到plugins.FileOpener2.js (iOS项目中的cordova-plugin-file-opener2目录下的www目录中)

cordova.define("cordova-plugin-file-opener2.FileOpener2", function(require, exports, module) {
/*jslint browser: true, devel: true, node: true, sloppy: true, plusplus: true*/
/*global require, cordova */

var exec = require('cordova/exec');

function FileOpener2() {}
               
FileOpener2.prototype.openURL = function (url, callbackContext) {
callbackContext = callbackContext || {};
exec(callbackContext.success || null, callbackContext.error || null, 'FileOpener2', 'openURL', [url]);
};

FileOpener2.prototype.open = function (fileName, contentType, callbackContext) {
    callbackContext = callbackContext || {};
    exec(callbackContext.success || null, callbackContext.error || null, 'FileOpener2', 'open', [fileName, contentType]);
};

FileOpener2.prototype.uninstall = function (packageId, callbackContext) {
    callbackContext = callbackContext || {};
    exec(callbackContext.success || null, callbackContext.error || null, 'FileOpener2', 'uninstall', [packageId]);
};

FileOpener2.prototype.appIsInstalled = function (packageId, callbackContext) {
    callbackContext = callbackContext || {};
    exec(callbackContext.success || null, callbackContext.error || null, 'FileOpener2', 'appIsInstalled', [packageId]);
};

module.exports = new FileOpener2();
});

6.将这两种文件的打开方式进行封装成FileOpen.js

/**
*  使用方法：
*  fileOpener.open(url).then(function(){});
*  用到的原生api 有：cordova-plugin-dialogs,cordova-plugin-device,cordova-plugin-FileTransfer
*/

/**FileTransfer*/
var ft;
Ext.define("util.FileOpen", {
    alternateClassName: "fileOpener",
    singleton: true,
    config: {
        isComplete: false,
        description: '高视医疗信息'
    },
    constructor: function (config) {

        this.initConfig(config);
    },
    // Returns a jQuery or AngularJS deferred object, or pass a success and fail callbacks if you don't want to use jQuery or AngularJS
    getPromisedExec: function (command, success, fail) {
        var toReturn, deferred, injector, $q;
        if (success === undefined) {
            if (window.jQuery) {
                deferred = jQuery.Deferred();
                success = deferred.resolve;
                fail = deferred.reject;
                toReturn = deferred;
            } else if (window.angular) {
                injector = angular.injector(["ng"]);
                $q = injector.get("$q");
                deferred = $q.defer();
                success = deferred.resolve;
                fail = deferred.reject;
                toReturn = deferred.promise;
            } else if (window.Promise) {
                toReturn = new Promise(function (c, e) {
                    success = c;
                    fail = e;
                });
            } else if (window.WinJS && window.WinJS.Promise) {
                toReturn = new WinJS.Promise(function (c, e) {
                    success = c;
                    fail = e;
                });
            } else {
                return console.error('AppVersion either needs a success callback, or jQuery/AngularJS/Promise/WinJS.Promise defined for using promises');
            }
        }

        if (device.platform == "Android") {
           
            cordova.plugins.fileOpener2.open(command, 'application/vnd.android.package-archive', success, fail);
        }
        else if (device.platform == "iOS") {
            // 加载其他应用，应用在升级的时候，iOS使用openURL打开、Android使用open打开  'tel://10086'
            cordova.plugins.fileOpener2.openURL(command, {
                success: success,
                error: fail
            });
        }

        return toReturn;
    },
    open: function (filePath, success, fail) {
        return this.getPromisedExec(filePath, success, fail);
    }
});

使用方法：

1.比较版本号

cordova.getAppVersion.getVersionNumber().then(function (version) {
           var versionCode = parseInt(version.toString().replace(/./g,''));
           // 此处写比较版本号逻辑，需要获取服务器上应用程序的最新版本号

       });

2.下载安装包，并执行安装

       Progress.start("正在下载,请稍后...");
       // 下载安装包
       fileTransfer.download(function(entry){

           Progress.close();

           // 打开已经下载的安装包
           fileOpener.open(entry.fullPath).then(function(message){
                console.log(message);
           },function(message){
                console.log(message);
           });

           console.log('download complete: ' + entry.fullPath);
           console.log('download name: ' + entry.name);

       });