Should I use a PopupWindow or DialogFragment for accepting input?

Should I use a PopupWindow or DialogFragment for accepting input?

References

Reference NO 1

http://search.aol.com/aol/search?q=Should+I+use+a+PopupWindow+or+DialogFragment+for+accepting+input%3F&s_it=spelling&nfpr=1&v_t=na

Reference NO 2

http://androiddev.orkitra.com/?p=27036

Reference NO 3

http://developer.android.com/reference/android/app/DialogFragment.html

Reference NO 4

http://android-developers.blogspot.com/2012/05/using-dialogfragments.html

Reference NO 5

http://turbomanage.wordpress.com/2012/05/02/show-soft-keyboard-automatically-when-edittext-receives-focus/

Reference NO 6

http://mobile.tutsplus.com/tutorials/android/android-sdk_working-with-dialogs/

Reference NO 7

http://mirlab.wordpress.com/category/android/

Reference NO 8

http://www.hows.info/questions/tagged/android-dialogfragment