Android bookmarks, shortcuts and resource links
Ctrl + Shift + L - Reformatting code
Ctrl + Q - See documentation
Ctrl + Alt + s - Settings
Alt + Enter - Quick Fix
Ctrl + Mouse Scroll - Increase/Decrease font
Ctrl + Alt + T - Regions
Ctrl + Alt + v - Extract local variable
Ctrl + Alt + f - Extract member variable
Shift+ Home/End - Select single line
Stop watch demo --> http://www.androidplus.org/2015/03/android-stopwatch-timer-app-tutorial-15.html
Play sound in an Android App --> https://www.youtube.com/watch?v=V1ocJmXeQ28 - Easy -
Share text with other apps --> https://www.youtube.com/watch?v=qVW9yfTQ-sg - Easy -
Custom drop down pop up menu --> http://stackoverflow.com/questions/21329132/android-custom-dropdown-popup-menu - Medium -
Auto complete text view --> http://sampleprogramz.com/android/autocompletetextview.php - Medium -
Using swipe views (The View Pager Design Pattern) --> http://kiory.pro/blog/creating-an-android-app-using-tabs-with-swipe-views/ - Difficult -
Speech to text --> http://www.androidhive.info/2014/07/android-speech-to-text-tutorial/ - Medium
Text to speech --> http://www.androidhive.info/2012/01/android-text-to-speech-tutorial/ - Medium
Drag and drop in Android --> http://code.tutsplus.com/tutorials/android-sdk-implementing-drag-and-drop-functionality--mobile-14402 - Difficult
Expandable list view --> http://www.androidhive.info/2013/07/android-expandable-list-view-tutorial/ - Medium
Android Splash Screen --> http://www.androidhive.info/2013/07/how-to-implement-android-splash-screen-2/ - Easy
Adding search to list view --> http://www.androidhive.info/2012/09/android-adding-search-functionality-to-listview/ - Medium
Using external fonts --> http://www.androidhive.info/2012/02/android-using-external-fonts/ - Easy
Grid view in android --> http://www.androidhive.info/2012/02/android-gridview-layout-tutorial/ - Medium
Save file on internal storage --> https://www.youtube.com/watch?v=D8jSGCkIltM - Medium
Save file on external storage --> https://www.youtube.com/watch?v=kerqarY7_wQ - Medium
Android asset studio: https://romannurik.github.io/AndroidAssetStudio/
Android Material Icons: https://design.google.com/icons/
Resouce to get png icons: http://www.iconarchive.com/
Material Design Official Site: https://material.google.com/
Generate various color schemes: https://coolors.co/app
Material Palette Generator: https://www.materialpalette.com/
Android Support Library: https://developer.android.com/topic/libraries/support-library/features.html#v7-recyclerview
JSON Formatters: http://jsonprettyprint.com/
https://jsonformatter.curiousconcept.com/