When to use Android's ArrayMap instead of a HashMap ?

Here are the key points to consider when deciding whether to use ArrayMap or HashMap in Android:

When to use ArrayMap

• ArrayMap is optimized for small to medium sized collections** (up to a few hundred entries). It uses less memory than HashMap for small collections.
• ArrayMap is more efficient for collections that are frequently iterated over, as it avoids the overhead of autoboxing primitive types.
• ArrayMap is a good choice when you need a Map implementation that is optimized for Android's memory constraints and usage patterns.

When to use HashMap

• HashMap is a better choice for large collections (thousands of entries or more). Its performance is better than ArrayMap for large data sets.
• HashMap is more widely used and has better compatibility across Java environments. It's a good choice if you need to share code with non-Android Java projects.
• HashMap provides a familia...