Make your app a default app to open a certain file

http://stackoverflow.com/questions/9872450/make-your-app-a-default-app-to-open-a-certain-file
http://stackoverflow.com/questions/2780102/open-another-application-from-your-own-intent
http://stackoverflow.com/questions/2923265/android-how-do-i-open-another-app-from-my-app
http://stackoverflow.com/questions/3872063/android-launch-an-application-from-another-application
http://developer.android.com/training/sharing/send.html
http://developer.android.com/training/basics/intents/index.html

How to inflate one view with an layout

http://stackoverflow.com/questions/2335813/how-to-inflate-one-view-with-an-layout

Quick Action 3D

https://github.com/lorensiuswlt/NewQuickAction3D

Using Fragment Layout on Android

http://mobile.tutsplus.com/tutorials/android/android-sdk_fragments/
http://developer.android.com/guide/components/fragments.html

Aplication Information installed

http://stackoverflow.com/questions/4471025/how-can-you-get-the-manifest-version-number-from-the-apps-xml-variables
http://stackoverflow.com/questions/5661418/get-apk-file-icon-version-name

Pagination on Android

http://mylifewithandroid.blogspot.com/2010/03/progressively-loading-listviews.html
https://github.com/paulononaka/Android-PaginationLayoutSample
http://android-developers.blogspot.com/2011/08/horizontal-view-swiping-with-viewpager.html

How to implement a paging feature in Android

http://viewpagerindicator.com/

Android ViewFlipper

http://developer.android.com/reference/android/widget/ViewFlipper.html
http://android-er.blogspot.com/2012/02/implement-swiping-page-effect-using.html
http://android-journey.blogspot.com/2009/12/android-viewflipper-and-slidingdrawer.html
http://androidimran.blogspot.com/2012/06/android-viewflipper-example.html

Socket on Android

http://developer.android.com/reference/java/net/Socket.html
http://android-er.blogspot.com/2011/01/simple-communication-using.html

Incorporating Socket Programming into your Applications

http://www.helloandroid.com/tutorials/simple-connection-example-part-ii-tcp-communication

Action Back on Webview on singgle Activity

http://stackoverflow.com/questions/9167242/android-back-button-on-webview-kills-app
http://stackoverflow.com/questions/6220602/android-webview-with-back-button-if-else