Difference between SparseArray Vs ArrayList?

Question

I want to know performance and efficiency of SparseArray and ArrayList and which one is better to use. I can\'t understand when to use SparseArra

Answer 1

SparseList implements a SparseArray. This class is identical to java.util.ArrayList, except that the former permits assignment to array indexes that are beyond the current length of the list, using the expected set() and add() methods.*

I think here there is all you need to know to understand which one to use.

SparseList is also more efficient

more info here