I'm building a mobile game with HTML5 and Javascript, for Android devices.
Android doesn't support HTML5 Audio, that's why i've choose to use a phonegap plugin : https://github.com/phonegap/phonegap-plugins/tree/master/Android/LowLatencyAudio
My structure is very simple, i've got 3 objects.
game, which is my main object.
animation, which is my object where are all my sprites animations.
sound, which all my sound are played, looped or stopped.
Here, my index.html file :
<!DOCTYPE HTML>
<html>
<head>
<title>Test</title>
<meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=no;" />
<meta charset="UTF-8" />
<link rel="stylesheet" type="text/css" href="assets/css/style.css">
<script type="text/javascript" charset="UTF-8" src="cordova.js"></script>
<script type="text/javascript" charset="UTF-8" src="PGLowLatencyAudio.js"></script>
<script type="text/javascript" charset="UTF-8" src="assets/js/src/pixi.js"></script>
<script type="text/javascript" charset="UTF-8" src="assets/js/game.js"></script>
<script type="text/javascript" charset="UTF-8" src="assets/js/sound.js"></script>
<script type="text/javascript" charset="UTF-8" src="assets/js/animation.js"></script>
<script type="text/javascript" charset="UTF-8">
function onDeviceReady(){
PGLowLatencyAudio.preloadFX('drum','assets/son/drum/drumPiste1.mp3', game.sound.successHandler, game.sound.errorHandler);
};
function onBodyLoad(){
document.addEventListener("deviceready",onDeviceReady,false);
};
</script>
</head>
<body onload="onBodyLoad()">
<div id="wrapper"></div>
<script type="text/javascript" charset="UTF-8">
game.init();
game.sound.init();
game.animation.init();
</script>
</body>
I'm using the PGLowLatencyAudio.preloadFX function of the plugin, to preload my mp3 file.
After, I call my init function of my object sound, which is like that :
game.sound = {
init: function(){
soundsArray = [];
game.sound.playSound();
},
successHandler: function(result){
alert(result);
},
errorHandler: function(error){
alert(error);
},
playSound: function(){
PGLowLatencyAudio.play('drum', game.sound.successHandler, game.sound.errorHandler);
},
};
In my init function, i call my playSound function, to play the sound i've previously preload.
It try to play sound before preload, but i don't understand why.
Error message is : A reference does not exist for the specified audio id.
Here's the link, which i followed for a similar project earlier.
It has the solution to the problem !
Related
I'm a beginner creating an app through jQuery Mobile, i am trying to incorporate a custom theme through theme roller and it prompted me to use these lines of code:
<link rel="stylesheet" href="css/themes/my-custom-theme.css" />
<link rel="stylesheet" href="css/themes/my-custom-theme.css" />
I have already put the themes folder in the apps folder however I am trying to figure out how to include these lines within this:
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<link rel="stylesheet" href="css/jquery.mobile-1.4.5.css">
<script src="js/jquery.js"></script>
<script type="text/javascript">
$(document).on('mobileinit', function(){
$.mobile.defaultPageTransition = 'slide';
});
</script>
<script src="js/jquery.mobile-1.4.5.js"></script>
</head>
<body>
All while not changing the layout and current look. The end goal is to figure out how to change the background and button colors on my app. Thank you!
I'm not really sure why this is not working but I have an MVC View that I want to display the current date/time/seconds on the page. I've put the javascript in the "Scripts/script.js" file. I then added the following at the bottom of the MVC View.
#section scripts {
<script src="~/Scripts/script.js"></script>
<script type="text/javascript">
$(document).ready(function () {
setDateTimer();
});
</script>
}
Thing is when I run it something is causing an error. Unfortunately at the moment I can't see the actual error message because of the way they have the site configured any error just takes you to a generic error page. I do know it has something to do with the code above because removing it cause the page to work.
For testing purposes I even removed all but simple javascript code in the file but that still doesn't work. Right now this is all that is in my script.js file.
function setDateTimer() {
var today = new Date();
}
I know the name of the of the .js file in the code is correct because I just dragged and dropped it to the page from the solution explorer.
Here is most of my _Layout page.
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<link href="~/Content/Site.css" rel="stylesheet" />
</head>
<body>
<div class="container body-content">
#RenderBody()
<footer></footer>
</div>
<script src="~/Scripts/jquery-1.10.2.min.js"></script>
<script src="~/Scripts/bootstrap.min.js"></script>
<script src="~/Scripts/modernizr-2.6.2.js"></script>
</body>
</html>
Layout page doesn't have a place to render the section you can change it like
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<link href="~/Content/Site.css" rel="stylesheet" />
</head>
<body>
<div class="container body-content">
#RenderBody()
<footer></footer>
</div>
<script src="~/Scripts/jquery-1.10.2.min.js"></script>
<script src="~/Scripts/bootstrap.min.js"></script>
<script src="~/Scripts/modernizr-2.6.2.js"></script>
#RenderSection("scripts",true)
</body>
</html>
I'm starting on learning EmberJS and I see this error in the console :
Uncaught TypeError: Cannot call method 'proto' of undefined ember-1.0.pre.min.js:17
It seems that just by including the library I get that error. Does anyone have any idea why I get that ?
EDIT : Added HTML Markup
<!doctype html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1">
<title></title>
<meta name="description" content="">
<meta name="author" content="">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<link rel="shortcut icon" href="/favicon.ico">
<link rel="apple-touch-icon" href="/apple-touch-icon.png">
<link rel="stylesheet" href="css/style.css?v=2">
<!--[if lt IE 9]>
<script src="http://html5shiv.googlecode.com/svn/trunk/html5.js"></script>
<![endif]-->
</head>
<body>
<script type="text/x-handlebars">
{{#view App.MyView}}
<h1>Hello world!</h1>
{{/view}}
</script>
<!-- The missing protocol means that it will match the current protocol, either http or https. If running locally, we use the local jQuery. -->
<script src="js/libs/jquery-1.7.2.min.js"></script>
<script>window.jQuery || document.write('<script src="js/libs/jquery-1.7.2.min.js"><\/script>')</script>
<script src="js/libs/handlebars-1.0.0.beta.6.js"></script>
<script src="js/libs/ember-1.0.pre.js"></script>
<script src="js/app.js"></script>
</body>
</html>
Also there's this JS in the app.js file :
var App = Em.Application.create();
App.MyView = Em.View.extend({
mouseDown: function() {
window.alert("hello world!");
}
});
but it has been removed and all the templating part from the HTML as well, and I still got the same error (:
From the Ember Documentation:
Every Ember app should have an instance of Ember.Application. This
object will serve as the globally-accessible namespace for all of the
other classes and instances in your app
The key here is "global". Here's an example of an application:
window.App = Ember.Application.create();
Your problem is the var-keyword on your Application.create. Remove that and add Window to make the error disappear.
I've scoured the net and stackoverflow looking for help, but can't seem to find any and I consider myself officially stumped. All of my code worked without a problem when it was all within standard script tags, then as soon as I moved them to their own .js file it crapped out. Help! This is what I now have in index.html (I've cut out all the irrelevant code since I'm just testing):
<html>
<head>
<title>PhoneGap Test</title>
<meta name="viewport" content="width=device-width, user-scalable=no;" />
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<script type="text/javascript" charset="utf-8" src="phonegap-1.3.0.js"></script>
<script type="text/javascript" charset="utf-8" src="jquery/src/lib/jquery-1.7.js"></script>
<script type="text/javascript" charset="utf-8" src="jquery/src/jqtouch-jquery.js"></script>
<script type="text/javascript" charset="utf-8" src="jquery/src/jqtouch.js"></script>
<script type="text/javascript" src="databasecalls.js"></script>
</head>
<body onload="init();">
<p>Some stuff here</p>
</body>
</html>
Then, this is what I have in databasecalls.js:
alert("file loaded");
function init(){
document.addEventListener("deviceready", phoneReady, false);
}
function phoneReady(){
// **** first, open the database ****
alert("Start making DB object");
dbShell = window.openDatabase("TimeBlogger", "1.0", "TimeBlogger", 20000000);
alert("Created DB object");
//and run another function if the setup is successful (displayEntries)
dbShell.transaction(setupDBTable, errorHandler, getDBProjectEntries)
}
So, unless I am mistaken, I should at the very least get alert(); to run as soon as it is read into index.html, right? I'm not even getting that! Is there something with the phonegap API that I missed... like everything needs to be in index.html or something?
Thanks in advance!
Justin
just trying to get jquery mobile firing with phonegap, but I can't get my hello world firing.
All of the references to the Js is correct.
<!DOCTYPE html>
<html>
<head>
<title></title>
<meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=no;" />
<meta charset="utf-8">
<link rel="stylesheet" href="style.css" type="text/css" media="screen" charset="utf-8">
<script type="text/javascript" charset="utf-8" src="phonegap-1.1.0.js"></script>
<script type="text/javascript" charset="utf-8" src="jquery.js"></script>
<script type="text/javascript" charset="utf-8" src="jquery_mobile.js"></script>
<script type="text/javascript">
document.addEventListener("deviceready", onDeviceReady, false);
function onDeviceReady() {
$(document).ready(function() {
$(document).bind("deviceready", function(){
navigator.notification.alert("hello world");
});
});
}
</script>
</head>
<body>
</body>
</html>
Try this:
<!DOCTYPE HTML>
<html>
<head>
<meta name="viewport" content="width=320; user-scalable=no" />
<meta http-equiv="Content-type" content="text/html; charset=utf-8">
<title>Hello With JQuery Mobile</title>
<link rel="stylesheet" href="jquery.mobile/jquery.mobile-1.0rc1.min.css" type="text/css" charset="utf-8" />
<script type="text/javascript" src="jquery.mobile/jquery-1.6.4.min.js"></script>
<script type="text/javascript" charset="utf-8" src="phonegap-1.1.0.js"></script>
<script type="text/javascript" src="jquery.mobile/jquery.mobile-1.0rc1.min.js"></script>
<script type="text/javascript">
var onDeviceReady = function() {
alert("OnDeviceReady fired.");
};
function init() {
document.addEventListener("deviceready", onDeviceReady, true);
}
</script>
</head>
<body onload="init();">
</body>
</html>
Did you include the reference where the html and js ar located in Xcode?
You should try to start debugging by placing something in the body of the html and see if that appears when you compile and run.
Try removing the addEventListener and Function like this:
<script type="text/javascript">
$(document).ready(function(){
$(document).bind('deviceready', function(){
navigator.notification.alert("hello world");
});
});
</script>
There is no need to listen for 'deviceready' twice. The document will be ready first, followed by JQM firing deviceready.
I hope it helps!
I had a similar issue. Commenting out jquery or jquerymobile reference caused the app to work but i could not get it to work with both in the header. Both files were in the www folder of phonegap. I even tried referencing the code from the jquery.com but it didn't work.