Verify web connectivity in an Angular2 (non-Ionic) Cordova application

Our team has developed an Angular2 Cordova application (not Ionic) that interacts with multiple backend services.

We want the app to display a specific page (Component) if a user is offline. Although we have already created this feature, we are unsure of how to detect connectivity and trigger the display of the page.

Since the app is built in TypeScript, I initially considered adding code to the index.ts file to achieve this functionality. However, I quickly realized that the index.ts file does not comprehend the app's navigation system, making it difficult to modify the page.

While I understand the use of the Cordova Network Information plugin for checking connectivity, I am struggling to integrate it into the app so that it can automatically switch to the appropriate component when needed.

cordovaangulartypescript

Answer №1

Once you've successfully integrated the Cordova Network Plugin, this script will run every second to monitor network connectivity:

setInterval(
    function(){
      if(!navigator || !navigator.network) return; //check if undefined

      if(navigator.network.connection.type == Connection.NONE){
            alert("No connection available");
        }else{
            alert("Connection established");
        }
    }, 1000
);

Answer №2

This plugin offers a functionality based on an outdated version of the Network Information API. It provides details about the device's cellular and wifi connections, as well as determines if the device is connected to the internet.

cordova plugin add cordova-plugin-network-information

Below is an example for implementation:

  module.controller('MyCtrl', function($rootScope, $cordovaNetwork) {

      document.addEventListener("deviceready", function () {

        var type = $cordovaNetwork.getNetwork()

        var isOnline = $cordovaNetwork.isOnline()

        var isOffline = $cordovaNetwork.isOffline()


        // listen for Online event
        $rootScope.$on('$cordovaNetwork:online', function(event, networkState){
          var onlineState = networkState;
        })

        // listen for Offline event
        $rootScope.$on('$cordovaNetwork:offline', function(event, networkState){
          var offlineState = networkState;
        })

      }, false);
    });

For more information, please refer to the provided link.

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