How to put things in order in an android application project?

Question

Java

The number of activities is growing, and with them fragments, layouts, adapters, etc. And it's all in one big pile. How to structure all this? For example, a messenger, there is a list of messages and a list of contacts. They can also be logically defined in some module / modules, and how is this done in androyd?

Answer 1

Break into packages. Here are examples:
What is the package architecture in Android Studio?