HashMap can be replaced with SparseArray
HashMap can be replaced with SparseArray
For maps where the keys are of type integer, it's typically more efficient to use the Android SparseArray
API. This check identifies scenarios where you might want to consider using SparseArray
instead of HashMap
for better performance.
This is particularly useful when the value types are primitives like ints, where you can use SparseIntArray
and avoid auto-boxing the values from int
to Integer
.
If you need to construct a HashMap
because you need to call an API outside of your control which requires a Map
, you can suppress this warning using for example the @SuppressLint
annotation.
Issue id: UseSparseArrays
Inspection Details | |
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Available in: | IntelliJ IDEA 2023.3, Qodana for Android 2023.3, Qodana for JVM 2023.3 |
Plugin: | Android, 2022.3.1 Beta 2 |