What can be the difference of using a fragment and frameLayout in android? Can both be used interchangeably?

Question

I have seen an approach where frameLayout is used in case of fragments. The ultimate goal was to have multiple fragments.

Answer 1

A framelayout, Relative View and a few others represents a view in android and is extended from viewgroup.

A Fragment is a an an Object that is used to represent a portion of a user interface and is usually hosted in an activity.

A fragment has a viewgroup which you can assign an XML layout. In the XML you can specify a viewgroup which can be a framelayout if you wish to represent the layout of the viewgroup within the fragment.

Fragments and framelayouts cannot be used interchangeably.

Having said that, you can create a Android application without the use of fragments, and just use viewgroups.