Mobile Web Overview - updated March 2016


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I have developed the mobile web development course and modules for some courses in KSU/SPSU. This is first module which is an overview of the field. Topics include choices of mobile application development and delivery, basic principles and best practices of mobile friendly web sites and web applications, and major tools and frameworks.

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  • Utilization become more channelized and deserve to be more spectacular view.So the web application has to be developed in such a way it should be opt to any kind of web devices.This presentation would provide a good assistance to know and access the web through several smart devices includes i phones
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Mobile Web Overview - updated March 2016

  1. 1. Mobile Web Overview IT 4213 Mobile Web Development IT 6753 Advanced Web Jack G. Zheng Spring 2016
  2. 2. Questions What is mobile web and why do we care about it? What are the basic choices to develop and deliver contents and services to mobile devices? What are the major design considerations and principles? What are the popular development tools, frameworks, and services? Where can you learn more about mobile web? How can web technologies be used to create mobile apps?
  3. 3. Overview • Mobile trends and stats • Mobile web definition and scope • Mobile application types: native, web, hybrid • Mobile website strategies: one web, adaptive, mobile version • High level design considerations and principles • Development tools 3
  4. 4. St. Peter's Basilica at the Vatican http://photoblog.nbc 013/03/14/1731231 6-witnessing-papal- history-changes- with-digital-age 4
  5. 5. Cisco Visual Networking Index Global Mobile Data Traffic Forecast, 2015–2020 Global North America The percentage of mobile data traffic will account for out of all fixed and mobile data traffic by 2020 15% 6% The percentage of mobile connections will be 'smart' connections by 2020 72% 95% Mobile traffic per mobile-connected end-user device per month by 2020 3.3GB 6GB Average mobile connection speed
  6. 6. Browsing by Device Category Trend Internet Trends by Mary Meeker 2015
  7. 7. Web Traffic Sources
  8. 8. What is Mobile Web? Mobile web refers to the access and use of web sites and web applications using smart mobile devices (and optimized for these devices) through computer networks. • It's mainly about user experience, particularly with a focus on user interfaces and interactions. – Web sites: focus on the optimization of web sites to be used on mobile devices. – Web applications: focus on functional features, with UI specifically designed for mobile devices. Web applications can be delivered through web sites or other types of apps (mobile app, hybrid app, browser app, etc.). • Recently it has begun to impact the application level architecture.
  9. 9. Why? Differences? • Why to make website mobile friendly? – Non-mobile-friendly sites create user experience and functional problems – Search engines also include mobile friendliness as in ranking - • Screen – Screen size is generally smaller – Screen resolution is lower and density is higher – Fragmented market: properties vary a lot among devices – Orientation: vertical screens accounts for 29% of usage • Interaction method: touch is different form pointing device – • Connection and speed – Mobile device connection is less stable, inconsistent, and slower • Device capability – Mobile devices have much more functionality integrated: cam, mic, sensors, GPS, etc. • Browser capability – Compatibility: browser behaviors are different – Fixed browser size (on the same device) – Viewport, automatic zooming – Delay: have a more noticeable delay as the application resides on the web versus directly on the native platform – Weaker plug-in support 9
  10. 10. The Problems • Performance problems – Mobile device connection is less stable, inconsistent, and slower – The device is less responsive • Browser support and compatibility problems – Fragmented Mobile Browser Market share.aspx?qprid=0&qpcustomd=1&qptimeframe=Y – Functionality limitation: PDF, flash, etc. • Design/content problem – not optimized for mobile devices – Content too small and difficult to view – Content hidden • Interaction problems – Links are crowded and difficulty/inaccurate to tap – Mouse hovering is totally missing – Slow and error-prone typing • Not so mobile friendly – – – • Some interesting problems documented – – 10 Use a tool to report the problems! /tools/mobile-friendly/
  11. 11. Mobile App Development Options 11,_HTML5,_or_Hybrid: _Understanding_Your_Mobile_Application_Development_Options A program designed to run directly on a specific mobile operating system. A web based application that runs in any web browser especially that designed for mobile devices. Applications developed using Web development technologies and wrapped in a mobile app container * New to the diagram: cross- platform native app (Xamarin) * New to the diagram: app like web site
  12. 12. App vs. Sites The old desktop vs. web? 12
  13. 13.,_HTML5,_or_Hybrid:_Understanding_Your_Mobile_Application_Development_Options Comparison of the Three Development Options Native Apps Mobile Web Hybrid Device features Can fully utilize platform/OS features if allowed, such as camera, location, sensors, and interactions with file systems and other apps. Access to devices features are limited to the browser environment. Can utilize platform/OS features if provided by the SDK, which are usually provided as JavaScript APIs. UX/UI Best; smooth interaction as UI is very responsive. Not as good as native app; may have delays. Looks like an app, but may have performance issues. Development Platform Applications are platform dependent. They have to be written and/or compiled to a specific OS*. Example: - Andriod (Java) ( Android ) - iOS (Objective C) - Windows (.Net, C#) - * Xamarin (all) Web applications are cross platform and can use standard languages such as HTML/CSS/JavaScript. Programs runs in browsers, although they may have slightly differences in different browsers. Hybrid applications are developed using standard web technologies, but complied to each specific platform. Distribution / Installation App Store, or direct downloaded; need installation Web; no installation App Store, or direct downloaded; need installation
  14. 14. Trending for Mobile Web about-native-hybrid-and-web-apps-but-were-afraid-to-ask umers-may-prefer-mobile-web-to-apps.html A recent survey of U.S. consumers by Quixey (in 2015) found that 66% of respondents said they prefer the mobile Web to apps. center/research/2015-mobile-trends-report/ 50% use on a daily basis among adoption leaders.
  15. 15. HTML 5 and Mobile Web • How does HTML 5 play a role in facilitating mobile computing? • Standardize mobile web development – Eliminates the need to create, maintain, and support apps for different mobile platforms (native platforms) • HTML 5 has provided a set of features and tools for building mobile apps – Mobile friendly tags – activate relevant phone features – JavaScript APIs to devices features • Geolocation • Offline • Web storage • Touch events • Drawing 15 <a href="tel:+14155557777">Order Pizza Now!</a> <a href="sms:+14155558888?body=Hello">Text me!</a>
  16. 16. Mobile Website Delivery Strategy • Separate mobile version site – Walmart: – Ikea: (jQuery Mobile) – Costco: • One Web – One Web means making, as far as is reasonable, the same information and services available to users irrespective of the device they are using. – bp/#OneWeb Why Separate Mobile & Desktop Web Pages?
  17. 17. One Web • One Web – Does not mean that the content is available in exactly the same representation across all devices. – The context of mobile use, device capability variations, bandwidth issues and mobile network capabilities all affect the representation. • Approaches – Responsive design – Adaptive: device detection and adaptation • Or dynamic serving as in multiscreenconsumer.html – Hybrid: RESS (Responsive + Server Serving) • Examples – (responsive) – or (adaptive)
  18. 18. Responsive Web Design Responsive Web Design (RWD) is a Web design approach aimed at crafting sites to provide an optimal viewing experience, easy reading and navigation with a minimum of resizing, panning, and scrolling, across a wide range of screen sizes and devices. • Ethan Marcotte coined the term responsive web design and defined it to mean fluid grid/ flexible images/ media queries in a May 2010 article in A List Apart – • Basic principles and practices – Fluid grid - no horizontal scrolling – Adaptive/flexible image – Media query
  19. 19. Examples • Responsive examples – – – (more examples here) • Non-responsive example – – Adjust the browser width and see the changes or use
  20. 20. Adaptive – Dynamic Serving • Adaptive design is about serving pages based on device feature detection – Also called dynamic serving as in multiscreenconsumer.html • Adaptive design has different perspectives – design/ – adaptive-design/ - this one drives a lot of discussions – I also agree with most comments but not the article itself • RESS: Responsive Design + Server Side Components – • Comparison: 20
  21. 21. Hybrid Web Apps • Hybrid apps are apps developed based on the web technologies (HTML, CSS, JavaScript) and wrapped in a platform specific native container – Similar to Java and .Net’s vision of Write-Once-Run-Anywhere – Device features are exposed through JavaScript API – The execution of the app relies on the browser engine of the OS it is installed in • Gartner Says by 2016, More Than 50 Percent of Mobile Apps Deployed Will be Hybrid – • Major framework: – Apache Cordova – PhoneGap – Appcelerator Titanium – IBM MobileFirst 21
  22. 22. App Like Web Site • App-like web site looks and acts like an app (browser hidden, etc.) but is actually a web site – This will give the website an “app” look and feel without installing anything at first – But they are still dependent on the browser to drive them • Primitive solution: pin it to your home screen – home-screen-on-any-smartphone-or-tablet/ • Take it to another level: progressive web app (optimized app like web site) – – – mean-for-the-web/ – mobile-apps/ 22
  23. 23. Cross-Platform Native App • This solution uses a common development environment for all platforms, but wraps (compiles) them to a target platform. – Similar to hybrid, but the apps are native apps, not relying on browser engines. • Example development framework: Xamarin – Using C# and .Net for development – Wrapping all native OS libraries • Is Xamarin hybrid? – The short answer is no. – – titanium-or-xamarin-which-cross-platform-should-you- choose 23
  24. 24. Considerations and Practices • Follow the general conventions and design principles • Site or app? Consider their pros and cons and select the most appropriate one • Consider the difference of user experience on mobile vs desktop • Adapt to screen size and density • Touch friendly UI: touch area, touch target size, gestures • Others – Handle browser compatibility and feature detection – Design for performance • Strategy: mobile first?? • Details will be covered in other lectures
  25. 25. Adapt to Screen Sizes and Density • Set up the correct viewport – ui/responsive/fundamentals/set-the-viewport • Layout: single column design works best – Luke Wroblewski has summarized some common layout patterns in two articles • “Multi-Device Layout Patterns” • “Off Canvas Multi-Device Layouts” • Content prioritization: Non-major content needs to be off screen – For example, menus are considered as non-major content • Navigation (menu placement) – – responsive-design/ 25
  26. 26. Touch Friendly UI • Rule of the thumb: thumb (one or two) oriented operation is common – do-users-really-hold-mobile-devices.php – Aware of hot areas - • Touch targets – Touchable areas instead of links – Size of touch targets: -friendly-design-ideal-mobile-touchscreen-target- sizes/ • Gestures – Gestures represent the future UI opportunities - • Provide interaction feedback • Activate the most appropriate pseudo keyboard
  27. 27. Mobile First • Mobile First is a philosophy created by Luke Wroblewski that highlights the need to prioritize the mobile context when creating user experiences. – Allows websites to reach more people – Forces designers to focus on core content and functionality (What do you do when you lose 80% of your screen real estate?) – Let designers innovate and take advantage of new technologies (geolocation, touch events and more) • Reference – responsive-web-design/ – – outdated/ 27
  28. 28. Development Tools and Frameworks • Responsive design test – – – US/docs/Tools/Responsive_Design_View – • Emulator/simulator – tals/tools/devices/browseremulation – • Platforms and Frameworks – – – Bootstrap: – jQuery mobile: – PhoneGap: – More: http://mobile-frameworks-comparison- • CDN – – – /devguide • Generator – – • Validator and test – – mobile-friendly/ • Feature detection – – – Modernizr: – – – – – • Designs – (image adaptation) – (commercial) –
  29. 29. Data, Stats, and Reports • KPCB Internet Trends • Cisco Visual Networking Index provider/visual-networking-index-vni/index.html • • • • • • Android devices: • Reports – – – 29
  30. 30. Good Resources • Community resources – – – • Online learning resources – – – – – – development--cs256 • Vendor resources – – – us/library/aa286514.aspx – US/docs/Web/Guide/Mobile – ebook – • Influencers – – – • Books – – – – – • News and blogs – – mobile-web-development/ – 30 • BSIT "Mobile and Web" elective track • IT 4213 Mobile Web Development • IT 6753 Advanced Web