Archana Mandape
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234 million Wireless subscriptions in USA.
Many players in the smart phone market.
Apple iPhone OS, RIM BlackBerry OS and
Android OS are operating systems.
Mobile devices are getting faster processors
Improved Wireless Network.
An important platform for Web Applications
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Consistent user experience
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Mobile Device Display
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Data Storage
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Speed
Make
Model
Resolution
Default Browser
Android
Droid Incredible
800x 480
WebKit
Android
Nexus One
800x 480
WebKit
Apple
iPhone 4
960x 640
WebKit
Motorola
SLVR L7
176×220
Opera
Motorola
ZINE ZN5
240×320
WebKit
Nokia
N810
800×480
Gecko
Nokia
N82
240×320
WebKit
Palm
Pre
320×480
WebKit
RIM
BlackBerry Torch
480×360
WebKit
◦ WebKit is an open source web content engine for
browsers and applications.
◦ WebKit is used as the rendering engine within iOS,
Android , Safari on Windows and also in Mac OS X.
◦ WebKit has a smaller footprint – less memory and
CPU requirement.
◦ It is ideal for the mobile environments.
◦ It can be used for desktop and mobile web page
development.
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Mobile Device Display
◦ The size of the viewport and scale of the web page
◦ The device's screen density
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Using Viewport Metadata
<meta name="viewport" content="width=800" />
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Automatic sizing
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<meta name="viewport" content="width=device-width" />
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Defining the viewport scale. Its
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initial-scale
minimum-scale
maximum-scale
user-scalable
Defining the viewport target density. Its values can
be.
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device-dpi
high-dpi
medium-dpi
low-dpi
<value>
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Cookies
◦ Stored on device memory
◦ Not suitable for large data
◦ Not reliable
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Client-Side Storage
◦ No Access for Web Apps
◦ HTML5 provides few capabilties
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Database on the Server
◦ Best available option
◦ Common technique - JASON
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Reduce number of requests and amount of
data transferred
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Avoid multiple file requests
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Data Compression
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Eliminate redirects
Developing Device Independent Mobile Web
Applications can be achieved to some extent!!
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Advance css By: Joseph R. Lewis; Meitar
Moscovitz
Programming the Mobile Web By: Maximiliano
Firtman
Towards a uniform web application platform
for desktop computers and mobile devices
By Tommi Mikkonen and Antero Taivalsaari