What is the best placement for the deviceready event in a multi-page PhoneGap application?

1) When working with multiple pages PhoneGap applications that may call the PhoneGap API, should the deviceready listener be placed on every page or is it enough to include it on the first page only?

2) Utilizing AngularJS routing along with <ng-view> for a single page application structure, where the main page is index.html and other pages are embedded within <ng-view> inside index.html. Each of these pages has the potential to call the PhoneGap API. Is it satisfactory to have the deviceready listener solely on index.html?

Answer №1

Make sure to include 'device ready' in your index.html file when working with AngularJS, as all other pages will be included through ng-view in the index.html. This should ensure that deviceready functions properly.

Additionally, bootstrap your angularjs after calling deviceready, especially if you plan on using your app offline, to avoid any potential issues.

I trust this information proves useful.

Answer №2

I found a solution by including the device ready function in index.html and initiating angularjs within the deviceready callback. However, this method is not efficient as it delays UI rendering until the connection to PhoneGap native process is established.

A more effective approach is outlined here. The author suggests using a promise pattern so that only the Phonegap API call waits for the deviceready event. This allows UI rendering and angularjs bindings to be completed before deviceready is triggered, resulting in an improved user experience.

angular.module('fsCordova', [])
.service('CordovaService', ['$document', '$q',
  function($document, $q) {

    var d = $q.defer(),
        resolved = false;

    var self = this;
    this.ready = d.promise;

    document.addEventListener('deviceready', function() {
      resolved = true;
      d.resolve(window.cordova);
    });

    // Check to make sure we didn't miss the 
    // event (just in case)
    setTimeout(function() {
      if (!resolved) {
        if (window.cordova) d.resolve(window.cordova);
      }
    }, 3000);
}]);

angular.module('myApp', ['fsCordova'])
.controller('MyController', 
  function($scope, CordovaService) {
    CordovaService.ready.then(function() {
      // Cordova is ready
    });
});

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