mobile web
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Mobile web
Sebastian LopienskiCERN
HEPiX WorkshopBeijing, October 2012
Outline
• Mobile development– native apps– mobile web
• CERN mobile web site– a demo
• Technologies– jQuery– jQuery Mobile– PhoneGap
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Outline
• Mobile development– native apps– mobile web
• CERN mobile web site– a demo
• Technologies– jQuery– jQuery Mobile– PhoneGap
3
Mobile devices at CERN
3200 devices
150 devices
5200 devices
720 devices
150 devices (including Windows Mobile)
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(as registered in LanDB in June 2012)
Mobile devices in Beijing metro
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(as observed in October 2012)
Developing for
• Language: Objective-C
• Development:– IDE: Xcode– OS: Intel-based Macs only– developer’s fee required for testing on a device
• Distribution: – via App Store only– prior review and approval by Apple
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Developing for
• Language: Java
• Development:– IDE: Eclipse
• Distribution: – via Google Play (called Android Market before)
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Developing for
• Language: C#, Visual Basic
• Development:– IDE: Visual Studio 2010– OS: Windows 7 or Vista only
• Distribution: – via Windows Phone Marketplace – prior review and approval by Microsoft
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Alternatives to native development?
• Developing native applications for each platform separately is a big effort
• Most apps do simple things, anyway:– displaying information, search, querying a server etc.– as on regular web sites
• Why not web, then?– smartphones and tablets have modern browsers– web sites can be optimized for small, touch screens
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Developing for (mobile) Web
• Language– server side (if needed): whatever you want– client side: HTML5, CSS, JavaScript
• Development:– IDE: whatever you want– OS: whatever you want
• Distribution: – deploy on a web server, and just advertise the URL
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Web – accessing native features
× Accelerometer
× Barcode scanner
~ Camera
× Compass
× Contacts
× File
Geolocation/GPS
Media
Network
× Notification
• alert, sound, vibration
Phone
Storage
Offline mode11
Native apps vs. mobile web
Reasons to go native
– access to native features
– performance
– exposure in app stores
– monetization
Reasons to go web
– cross-platform
– open standards
– easy development
– easy deployment
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Universities’ mobile web siteshttp://m.adelphi.edu
http://m.asu.edu
http://m.berkeley.edu
http://m.bristol.ac.uk
http://m.columbia.edu
http://m.epfl.ch
http://m.fiu.edu
http://m.glos.ac.uk
http://m.harvard.edu
http://m.hbs.edu
http://m.iu.edu13
http://m.mit.edu
http://m.ncsu.edu
http://m.ox.ac.uk
http://m.princeton.edu
http://m.sju.edu
http://m.stanford.edu
http://m.syr.edu
http://m.tamu.edu
http://m.tufts.edu
http://m.ua.edu
http://m.uc.edu
http://m.ucla.edu
http://m.ucsd.edu
http://m.ucsf.edu
http://m.uiowa.edu
http://m.umich.edu
http://m.uni.edu
http://m.unil.ch
http://m.uw.edu
http://m.warwick.ac.uk
http://m.wayne.edu
http://m.wisc.edu
Mobile web sites
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Outline
• Mobile development– native apps– mobile web
• CERN mobile web site– a demo
• Technologies– jQuery– jQuery Mobile– PhoneGap
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CERN mobile web site
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BETAhttp://m.cern.ch
Other mobile Web initiatives at CERN
• Indico is building a mobile version– read-only interface
• Mobile CMS TV– http://cern.ch/mcmstv
• others popping up or on the way…
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Outline
• Mobile development– native apps– mobile web
• CERN mobile web site– a demo
• Technologies– jQuery– jQuery Mobile– PhoneGap
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jQuery is a JavaScript library that simplifies:– HTML document traversing– event handling– animating– AJAX interactions– etc.
Extremely popular: 57% of most visited 10k web sites
What to learn more? http://jquery.com/What to get a feeling? http://ejohn.org/apps/workshop/intro
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(From http://trends.builtwith.com/javascript/jQuery)
jQuery examples
Before a form is submitted, show help if name is empty:
$("form").submit(function(){
if ($("#name").val() === "") { $("span.help").show(); return false;
} }
);
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(From http://ejohn.org/apps/workshop/intro)
jQuery Mobile
Touch-Optimized Web Framework for Smartphones & Tablets
http://jquerymobile.com/
A JavaScript & HTML5 framework, based on jQuery and jQuery UI,targeted at all popular mobile devices
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Supp
orte
d de
vice
s
Listview example
<ul data-role="listview" data-inset="true"> <li data-role="list-divider">Mailbox</li> <li><a href="#inbox">Inbox <span class="ui-li-count">12</span></a></li> [..]</ul>
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Widgets
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Bridging Web and native together
PhoneGap is a tool to create native applicationswith web technologies such as HTML5, JavaScript and CSS
– http://phonegap.com – supported by Adobe– aka Apache Cordova:
http://incubator.apache.org/cordova
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Single code – multiple devices
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Hybrid applications:
developed as web,
packaged as native
Supported platforms
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Accessing native features
Accelerometer
Barcode scanner
Camera
Compass
Contacts
File
Geolocation/GPS
Media
Network
Notification
• alert, sound, vibration
Phone
Storage
Offline32
Reasons to go web
– cross-platform
– open standards
– easy development
– easy deployment
Reasons to go web
– cross-platform
– open standards
– easy development
– easy deployment
Reasons to go native
– access to native features
– performance
– exposure in app stores
– monetization
Native vs. web?
Reasons to go native
– access to native features
– performance
– exposure in app stores
– monetization
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Hybrid approach
combines benefits of both native and web
Hybrid!
Summary
• Mobile web – the game changer!– trivial to develop and deploy
(once you know HTML, CSS, JS)
• Hybrid applications – the silver bullet?– develop web, deploy native
• Use http://m.cern.ch – not an official service community support– feedback and ideas are welcome: cern-mobile@cern.ch
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Thank you
http
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5098
350
Any questions?Sebastian.Lopienski@cern.ch
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Backup slides
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Universities’ mobile web sites
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Mobile web sites
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Mobile web sites
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Mobile web sites
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CERN mobile web site
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jQuery
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jQuery examples
Change style (css) of all links <a> in list items <li> to bold and red:
$("li a").css({ color: "red", fontWeight: "bold" });
Find element(s) with id box and animate to the new marginLeft:
$(".box").animate({marginLeft: 10});
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(From http://ejohn.org/apps/workshop/intro)
jQuery Mobile
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jQuery going mobile
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…widely used…
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…and explained
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Hello world<html> <head> <link rel="stylesheet"
href="jquery.mobile.css"/> <script src="jquery.js"/> <script src="jquery.mobile.js"/> </head> <body>
<div data-role="page"> <div data-role="header"><h1>My Title</h1></div> <div data-role="content"><p>Hello world</p></div> </div>
</body></html> 57
Page header example
<div data-role="header"> <a href="index.html" data-icon="delete">Cancel</a> <h1>Edit Contact</h1> <a href="#o" data-icon="check" data-theme="b">Save</a></div>
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Multiple pages
[..]<div data-role="page" id="home"> <div data-role="header"><h1>Home</h1></div> <div data-role="content"><p>
Go to <a href="#page2">page 2</a> </p></div></div>
<div data-role="page" id="page2"> <div data-role="header"><h1>Page 2</h1></div> <div data-role="content"><p>Hello world</p></div></div>[..]
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(in a single HTML file)
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