Custom ArrayAdapter: why do I get a NullPointerException?

Custom ArrayAdapter: why do I get a NullPointerException?

References

Reference NO 1

http://stackoverflow.com/questions/13634033/custom-arrayadapter-why-do-i-get-a-nullpointerexception

Reference NO 2

http://stackoverflow.com/questions/11390695/nullpointerexception-using-custom-array-adapter

Reference NO 3

https://groups.google.com/d/topic/android-developers/9rwYvsfG_fg

Reference NO 4

http://android.ifmdb.com/uT7NwIcA2-nullpointerexception-with-custom-arrayadapter-fix-it.html

Reference NO 5

http://samir-mangroliya.blogspot.com/p/why-nullpointerexception-occures-in.html

Reference NO 6

http://forumarray.com/android-cannot-understand-nullpointerexception-with-custom-adapter-328589

Reference NO 7

http://android.bigresource.com/Android-How-to-avoid-NullPointerException-when-using-custom-Views-or-SurfaceViews-UELjZTcJl.html

Reference NO 8

http://www.blogosfera.co.uk/2013/07/android-displaying-custom-arrayadapter-inside-viewpager/