How to start a fragment in Android?

You can add your fragment to the activity's view hierarchy either by defining the fragment in your activity's layout file or by defining a fragment container in your activity's layout file and then programmatically adding the fragment from within your activity.

How to use fragment tag in Android?

Alternatively, you can assign a unique tag to a fragment and get a reference using findFragmentByTag() . You can assign a tag using the android:tag XML attribute on fragments that are defined within your layout or during an add() or replace() operation within a FragmentTransaction .

How to inflate a fragment in Android?

In most cases, you can use the fragment constructors that take a @LayoutId , which automatically inflates the view at the appropriate time. You can also override onCreateView() to programmatically inflate or create your fragment's view.

How to make toast in fragment in Android?

Use code with caution.

1. if (message. isNotEmpty()) : This checks if the message string is not empty.
2. Toast. makeText(requireContext(), message, duration) : Creates a Toast object with the specified context (obtained from the Fragment), message, and duration.
3. . show() : Displays the created Toast on the screen.

A fragment represents a reusable portion of your app’s UI. A fragment defines and manages its own layout, has its own lifecycle, and can handle its own input …
Фрагменти – це, по суті, частини інтерфейсу, які живуть усередині активності та можуть взаємодіяти з нею. Вони дають змогу розбивати інтерфейс …
A fragment represents a modular portion of the user interface within an activity. A fragment has its own lifecycle, receives its own input events, …