Cacher is the code snippet organizer for pro developers

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/