How do you connect multiple screens in an application?

To connect screens in an Android application, the most commonly used components are Navigation (within architecture components) or Intent.

Navigation Component:

• Graphical representation of navigation.
• Using Safe Args for type-safe data transfer between screens.
• Support for nested graphs, global actions.
• Suitable for complex multi-level navigation.

// Example of using Navigation Component
findNavController().navigate(R.id.action_currentFragment_to_nextFragment, bundle) 

Intent:

• Standard Android mechanism for starting activities or services.
• Lower-level, requires manual handling of results.
• Suitable for simple transitions between activities.

// Example of using Intent
val intent = Intent(this, NextActivity::class.java)
intent.putExtra("data_key", dataValue)
startActivity(intent)

Alternatives:

• Old frameworks like Cicerone (routing).
• Manual fragment replacement in fragment manager.

The choice depends on the complexity of navigation, project architecture, and team preferences. In modern applications, the Navigation Component is preferred.