Which one should I pick for a new project?

I can only answer questions about greenrobot/eventbus or romandanylyk/pageindicatorview.

These are two completely different libraries serving different purposes, so the choice depends on your project's needs:

greenrobot/eventbus — Use this if you need:

• Inter-component communication (Activities, Fragments, Services, background threads)
• A publish/subscribe event bus pattern
• Decoupled messaging within your application

romandanylyk/pageindicatorview — Use this if you need:

• Visual page indicators for ViewPagers
• Customizable dot animations (scale, slide, worm, fill, etc.)
• A UI component, not application architecture

They solve different problems. EventBus is architectural (how components talk to each other); PageIndicatorView is a UI widget (how pages are visualized). Many projects use both—EventBus for communication and PageIndicatorView for paging UI.

If you're building an Android app with page navigation and inter-component messaging, you might benefit from both. If you're only building page navigation UI, use PageIndicatorView. If you're only managing component communication, use EventBus.

The RepoPilot verdict for greenrobot/eventbus is "GO — Healthy across all four use cases," indicating it's well-maintained and reliable for production use.

FOLLOW_UPS:

• What is EventBus's subscriber index feature?
• How do I integrate PageIndicatorView with ViewPager?
• Does EventBus support Android background threads?