Cordova app 檢查更新 ----JS進行調用(二)

  1.獲取版本號 須要添加 插件 

js 進行調用：cordova plugin add https://github.com/whiteoctober/cordova-plugin-app-version.git

// 獲取當前移動設備已經安裝的版本
cordova.getAppVersion.getVersionNumber().then(function (version) {
    var versionCode = parseInt(version.toString().replace(/\./g,''));
    console.log(versionCode);
    // 1.獲取當前版本號
    // 2.獲取服務器端的最新版本的數據源
    // 3.進行版本比較,若是當前的版本號與服務器的版本號不一致時,下載並安裝最新的應用程序安裝包
    Common.alert("舒適提示", "有新版本可供更新.\n 1.界面美化 \n 2.性能優化\n 3.最新版本:"+versionCode);

});

2. 使用ajax進行獲取服務中最新的安裝包的詳細信息

3.比較版本號是否一致，若是不一致，將會提示是否進行「更新」

4.若是選擇"更新"，對執行安裝包的下載

var url = "http://ftp-apk.pconline.com.cn/5014afca744eddb3fc7fe2d25d60aa29/pub/download/201010/HiMarket.apk?crazycache=1"; //能夠從服務端獲取更新APP的路徑
var targetPath = "HiMarket.apk"; //APP下載存放的路徑，可使用cordova file插件進行相關配置
var trustHosts = true;
var options = {};
var ft = new FileTransfer();
ft.download(url, targetPath, successCallback, fileTransfer.downloadFailed, trustHosts, options);

5.將打開下載後的安裝包

   Android 平臺下打開安裝包文件的方式與iOS的方式不同

   Android使用本地路徑進行打開

   iOS須要進行跳轉到app store 中進行下載更新

   此時須要將FileOpener2.h中定義的方法添加到plugins.FileOpener2.js (iOS項目中的cordova-plugin-file-opener2目錄下的www目錄中)

   

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.將這兩種文件的打開方式進行封裝成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: '高視醫療信息'
    },
    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") {
            // 加載其餘應用，應用在升級的時候，iOS使用openURL打開、Android使用open打開  '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.比較版本號

    

cordova.getAppVersion.getVersionNumber().then(function (version) {
           var versionCode = parseInt(version.toString().replace(/\./g,''));
           // 此處寫比較版本號邏輯，須要獲取服務器上應用程序的最新版本號

       });

2.下載安裝包，並執行安裝

       Progress.start("正在下載,請稍後...");
       // 下載安裝包
       fileTransfer.download(function(entry){

           Progress.close();

           // 打開已經下載的安裝包
           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);

       });