I am working on a mobility app which uses AngularJS and OnsenUI. For navigating from a page to the other I have used the ons-navigator "pushPage".
There is a requirement where in I do not want to load all the controllers in index.html. I would want to load it on demand. I could load a normal JavaScript file as when required using the below code snippet.
var fileref = document.createElement('script');
fileref.setAttribute("type", "text/javascript");
fileref.setAttribute("src", filename);
document.getElementsByTagName("head")[0].appendChild(fileref);
But when I try to do the same thing for a controller(AngularJS) file, the page fails to load. Let me know a suitable fix for it since I cannot use $routeProvider.
Related
We have angularjs app with lot of js getting loaded during the initial page load. Which are not required as part of home page. How we can void these. Is requieedjs solve this. How and when other js files get loads.
requirejs can be troublesome to use with angular
use following:
https://oclazyload.readme.io/docs
I am using angular full stack generator and created a directive. When I am using the templateUrl, the whole page is recursively loading. But when I try include the html using the template, it works correctly. Any way how to debug this issue?
You probably did mis-configure your template URL and angular is not loading your template but the index.html, which causes the loop. Check your template URLs and the server routing.
Background:
I'm loading my entire AngularJS Cordova/Ionic web-app from the server. This is amazing. I can change the app without going through Apple.
Questions:
Q1) How can I use js-files.zip, loaded from server, in my index.html file?
Q2) How can I effectively load index.html startup logic from my server?
Problems:
On some older devices, loading time is too high if I load all my .js files from my server, so I want to be able to configure that logic (in index.html) also from the server.
The only thing I'm not loading from the server is the content of index.html
So, how can I essentially load index.html from a server?
If i try to do that
1) Pulling, say, indexfromserver.html using ajax and doing html rewrite of index.html with document.write(res), then there are AngularJS problems:
E.g., module missing errors (*1 below), because the following isn't in index.html until after the ajax response rewrites index.html:
<body ng-app="myapp" ng-controller="MainCtrl">
1.1) I can include the necessary modules in the initial local index.html, but then if I rewrite index.html, I'll get these errors/warnings about classList null in ionic (ask me for details), deviceready not fired, and angularjs loading more than once
2) I can redirect index.html to, say, indexfromserver.html, but then all my $http responses are rejected promises.
Regarding 2) I've been told I should be able to add a controller for indexfromserver.html or specify $urlRouterProvider.otherwise('/app/indexfromserver');
This hasn't fixed the $http requests from being rejected.
I don't understand exactly how index.html is involved in making $http work correctly, as it doesn't have a controller and isn't the 'otherwise' route provided. I only see mention of index.html in config.xml so far.
Request:
Can someone please post a snippet of a typical example how an AngularJS Cordova/Ionic app could effectively use index.html logic that's loaded from a server?
Otherwise, can someone show/explain if/how I can use js-files.zip from server, and uncompress and use in index.html?
Details/Notes:
(*1)
Uncaught Error: [$injector:modulerr] Failed to instantiate module myapp due to:
Error: [$injector:nomod] Module 'myapp' is not available! You either misspelled the module name or forgot to load it. If registering a module ensure that you specify the dependencies as the second argument.
http://errors.angularjs.org/1.2.17/$injector/nomod?p0=myapp
It was pointed out that you can use JavaScript in certain situations to unzip an archive, but that is not very common. The web does not work like that, Ionic runs inside of a browser so you should use the same processes as you would to optimize a website.
You would build the app instead like any website. Take the following steps to create a more optimized app for loading quickly. If you aren't familiar with build tools, take a look at http://yeoman.io/, and this specific generator for Ionic https://github.com/diegonetto/generator-ionic.
Here is a very basic list of some steps you can take, though the generator provides a few more options and other things could be added as well.
Concat and minimize your app's JavaScript into single file.
Concat and minimize your app's CSS into a single file.
Compress your angular templates with a tool like this https://www.npmjs.org/package/grunt-angular-templates into a single JS file.
Deploy static assets to server.
Link to above assets in index.html.
Ultimately the goal is to optimize the assets so you don't have to load a lot of files, and each file is as compressed as possible.
If you want to go the zip file route, and you assume your users aren't always connected to the internet, probably the best way is to:
Check if the version is new via a server call, and if so, download the zip file, extract it (maybe via stuk.github.io/jszip/), and use a Cordova interface to write the new JS code to the phone's memory, and run the code by adding some script tags in your loader.
Each app has different modules, so they need to load different compiled js files in index.html as below.
Just find that it does not work. So is there a good way to do it? or need any callback to boot AngularJS app manually? Thanks.
<script>
var appId = unescape(window.location.href).split('#/')[1].split('/')[0];
loadComponent('../.tmp/client/scripts/' + appId + '.js');
</script>
You can use RequirejS for dynamic loading. You can combine Angular and RequireJS for better performing apps
I'm having trouble getting path lookup to work with a AngularJS v1.2.0 and PhoneGap/Cordova Android application. I've come pretty far with html5mode(true) by setting <base href="."/> in index.html and then changing $routeProvider.when('/') to $routeProvider.when('/android_asset/www/index.html'). After that I am able to get redirectTo('login') to reach $routeProvider.when('/login') and there render templateUrl: 'static/partials/login.html' as expected.
The problem I have is that if I instead try to redirect to the login page from my Javascript code with $location.path('/login');, the route is found but templateUrl loading fails with an insecurl exception.
I've tried whitelisting access to file:// by using the new angular-sanitize module, but that does not help.
How can I make $location.path() do the same things as redirectTo so that the partial is loaded? Or is there some other way to solve this problem?
UPDATE: I got a bit forward by adding a call to replace() after the path function, e.g.:
$location.path('/login').replace();
but that seems like a hack, and it still causes the templateUrl in the otherwise route to fail with the same exception.
Any ideas on what might be wrong? Is it that html5mode(true) just does not work at this moment with Phonegap and the only way to fix this is to set it to false and add hashtags to every path (like is done in the angular phonegap seed project)?
For future reference, this is how I managed to solve the problem:
AngularJS currently does not seem to support html5mode(true) inside a Cordova application because of the insecurl problem I reported. What I had to do is add
var h5m = (typeof html5Mode !== 'undefined') ? html5Mode : true;
$locationProvider.html5Mode(h5m);
which gives me the possibility to explicitly set html5Mode in the PhoneGap index.html with a global variable:
<script>
var html5Mode = false;
</script>
So now $location.path('/login') as well as redirectTo: 'login' works, but links in html files, don't. To get those working in PhoneGap, with html5Mode disabled, I had to add #/ in front of every link, e.g. login.
That makes PhoneGap work, but breaks the web page which uses History API with html5Mode(true). The last piece of the puzzle was to add <base href="/"/> to the web page's index.html (and leave it out of the index.html of the PhoneGap project.) So now even though I have a link that says #/login in the web page, I get to the url http://example.com/login and don't see any hashes in the address bar.
**
So in the end I have History API working in my web page and History API disabled in the PhoneGap project (where there really is no need for History API as there is no address bar). The only downside is the extra #/ I have to put in each template html file, but that is a minor annoyance compared to the ability to use all of the same html and javascript files for both web and mobile.
I had this same problem as well. I managed to fix it by skipping the leading slash in the route config:
$routeProvider
// route for the foo page
.when('/foo', {
templateUrl: 'foo.html', //previously: '/foo.html'
controller: 'fooController'
}) //etc.