What is the difference between Snackbar and Toast?

Snackbar is more flexible: it allows adding an action button, is attached to a specific View for proper positioning, and hides when interacting with scrollable content (e.g., when scrolling a list). Toast is a simpler, non-interactive popup message that appears above all elements and is not attached to a specific View.

Key differences:

Feature	Snackbar	Toast
Action button	Yes	No
Positioning	Attached to a View	Displays over everything, not attached
Hiding	Hides when scrolling (in CoordinatorLayout)	Does not hide when interacting with content
Interactivity	User can interact with the button	User cannot interact
Class	com.google.android.material.snackbar.Snackbar	android.widget.Toast

Example of using Snackbar:

// To display a Snackbar in CoordinatorLayout
Snackbar.make(findViewById(R.id.coordinator_layout),
               "File deleted",
               Snackbar.LENGTH_LONG)
        .setAction("Undo") {
            // Action when clicking "Undo" button
        }
        .show()

Example of using Toast:

// For a simple notification
Toast.makeText(applicationContext,
               "Operation completed",
               Toast.LENGTH_SHORT)
     .show()