How can information be transferred between two screens in an Android application?

In Android, to pass data between two screens (Activities), Intent with extras is usually used.

Example of passing a string from one Activity to another:

// In the first Activity
val intent = Intent(this, SecondActivity::class.java)
intent.putExtra("key", "Hello, second screen!")
startActivity(intent)

// In the second Activity
val message = intent.getStringExtra("key")

You can also use Bundle for passing more complex data or employ ViewModel and LiveData for data exchange between fragments within the same Activity.