4 Udemy Course on Android Apps Programming and Android 5.0 Lollipop - free

Course 1 : 

Mastering Android Programming

Learn the Android programming with Android SDK, Advance Java Concepts, OpenGL and SQLlite
udemy course :https://www.udemy.com/mastering-android-programming/

Course 2 :

Make Android Apps with Source Code - Power Workshop Series

Learn Android Mobile Application Design and Development using Application Source Codes
udemy course :https://www.udemy.com/make-android-apps-with-source-code-power-workshop-series/

Course 3 :

Learn to Make Android Apps - for Absolute Beginners

Start making Android Apps from the ground up. Learn the popular KitKat and Lollipop Android Programming Languages.
Udemy Course :https://www.udemy.com/learn-to-make-android-apps-for-absolute-beginners/

Course 4 :

Android 5.0 Lollipop - Essential Training

Android 5.0 - Lollipop - Successor to Kit kat 4.4. Android Programming Apps with Material Theme, Media Playback etc,
Udemy Course : https://www.udemy.com/android-50-lollipop-essential-training/