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52. Introduction to Fragment Manager and Fragment Transaction

Design + Code an Android App from Scratch

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This video talks about FragmentManager which is an interface for interacting with Fragment objects inside of an Activity and FragmentTransaction which is an API for performing a set of Fragment operations. FragmentManager tracks a list of Fragments in the current Activity. Each Fragment can be assigned an ID or a TAG which can be used by the FragmentManager later to find it using the findFragmentById or findFragmentByTag methods. FragmentTransactions let you add, remove, replace or hide Fragments in Activities programmatically.

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