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Answers and rating deltas for

How to make add to favorites button using share preferences but without any database in android?

Author Votes Δ
Ezaldeen sahb 1 +3.92
sanjeev 0 +1.28
Jeffery Ma -1 -2.76
CCT -1 -2.44
Last visited: Sep 4, 2019, 3:46:46 PM