Question

Differentiate between Visible and non-visible components​

Answer 1

$\huge\colorbox {lime}{Your\:answer}$

• The app's visible components are those that you can see when the app is launched—buttons, text boxes, and labels. These are often referred to as the app's user interface.
• Non-visible components are those that you can't see, so they're not part of the user interface.

Answer 2

Visible components and Non-visible components

Visible components such as Button, TextBox, Label, etc. are part of the User Interface. Non-visible components such as Accelerometer, Sound, OrientationSensor are not seen and thus not a part of the UI screen, but they provide access to built-in functions of the Android device.