how can i get online courses in android application development?

http://developer.android.com/guide/components/index.html

http://www.venturehire.co/course/android-online-training-live-android-app-development

http://thenewboston.org/list.php?cat=6

Three good online platforms for courses on a variety of topics.

1. Coursera

2. Open EDX

3. Udacity

http://www.androidhive.info/ ,, i think this website is very good to start :)

There are many courses offered by "https://www.coursera.org/"

Go to the website and enroll yourself for a course to get all the stuff for an ongoing course OR the course that will be started soon.

 

 

Try the Marakana TV android bootcamp video series, it's quite helpful.
http://www.youtube.com/watch?v=5RHtKIo_KDI&list=SPE08A97D36D5A255F also try Marko Gargenta's book "Learning Android": http://www.amazon.com/Learning-Android-Marko-Gargenta/dp/1449390501

Youtube

Here You Get a lot of Tutorial and Resources Online also you can find books.

yeah, there are so much courses and books  in android .. 

developer.android.com