Developing Windows 8.1 Apps using HTML5 ,CSS3 & JavaScript(Chakra)

1. WINDOWS 8.1
WinJS
Developing Windows 8.1 Apps using
HTML5 ,CSS3 & JavaScript(Chakra)

2. What is Metro
App ?
 These Apps are mainly optimized for touch screen Environment.
 These apps can be viewed in Full screen or in Snapped to side of
the screen.
 Apps can provide toast notifications on screen and animate their
tiles on start screen, just like windows phone.
 Even the desktop is treated as one of the metro apps.
 These use "contracts" just like any windows phone to provide
functionality for search , social networks ,emails , phone etc.
 The Life Cycle of metro apps is quite similar to windows phones.

3. LifeCycle of
Windows
MetroApps

4. How Microsoft
made possible
Creating apps
with
HTML5,CSS3,
JavaScript

5. What isWinJS?
Do we need to
learnWinJS to
Program
HTMLApps ?
 WinJS isWindows Library for JavaScript . It provides windows 8
look for our apps like transitions , animations etc
 It also provides support for creating namespaces(kind of alias for
packages in java) , classes , private , public objects and variables.
Absolutely No

6. What is
WinRT ?
 WinRT stands forWindows Runtime environment .
 It provides support for accessing Camera, Home Network,
OneDrive, File Management etc.
 It can run apps in "Sandboxed" environment to allow greater
security and stability.
 It can be managed by C/C++ , C#,VB and JavaScript.

7. LifeCycle
Methods
 These methods are defined in WinJS.Application NameSpace .
 onactivated Event -When app is launching and before Splash
screen appeared.
 oncheckpoint Event -When is going to be suspended or resumed .
 start -When app is completely loaded i.e., when DOM is loaded in
HTML
 stop , error , ready, etc .

8. Tools needed
for
Developing
Windows 8.1
Apps
 Windows 8.1 apps are developed in "Visual Studio forWindows
2013" .
 For developing games Unity3D game Engine is mostly used and
there are more other third party Game Engines.

9. Microsoft
Windows 8.1
ThankYou.
By B. Bharat Kumar.