Difference between sparsearray and sparsearraycompat

Question

what is difference between Sparsearray and Sparsearraycompat.

Sparsearraycompat is a copy of the current platform

(currently { @ link android.os.Build.VERSION_CODES#KITKAT } version of { @link android.util.SparseArray};

provides a removeAt() method and other things.

It's means Sparsearray can use everywhere except KITKAT? why not always use Sparsearray ?

Answer 1

SparseArray api was changing and improving as newer and newer versions of SDK were released. SparseArrayCompat is implementation of SparseArray that is distributed trough the support library, so you can use the most fresh api on old SDKs as well.