What is an Android fragment?

What is an Android fragment?

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 events. Fragments cannot live on their own–they must be hosted by an activity or another fragment.

What is the purpose of fragments in Android?

According to the Android documentation, a fragment is a part of applications user interface that is bound to an activity. Fragments have their lifecycle and layouts or UI components. Fragments help enrich your UI design, pass data between different screens, and adapt to different device configurations.

How does fragment work in Android?

Overview

1. A Fragment is a combination of an XML layout file and a java class much like an Activity .
2. Using the support library, fragments are supported back to all relevant Android versions.
3. Fragments encapsulate views and logic so that it is easier to reuse within activities.

Why do we use fragments?

Fragments help enrich your UI design, pass data between different screens, and adapt to different device configurations. Unlike activities, fragments are usable. This means that they can be used to showcase different messages or functions to the user.

What do fragments do?

Usually, fragments are pieces of sentences that have become disconnected from the main clause. One of the easiest ways to correct them is to remove the period between the fragment and the main clause. Other kinds of punctuation may be needed for the newly combined sentence.

Should I use fragment?

Fragments have their lifecycle and layouts or UI components. Fragments help enrich your UI design, pass data between different screens, and adapt to different device configurations. Unlike activities, fragments are usable. This means that they can be used to showcase different messages or functions to the user.

What are the benefits of fragments?

So in the spirit of just wanting to know what time it is, here are four places where Fragments prove useful.

• Dealing with device form-factor differences. The Activity class is often thought of as the main UI class in Android.
• Passing information between app screens.
• User interface organization.
• Advanced UI metaphors.

Why should I use fragment in Android?

Encapsulation of logic.

Better handle of the lifecycle of the fragment.

Reusable in other activities.

How do fragments work in an Android?

A fragment is always embedded in an activity.

It has its own lifecycle; however,it is directly impacted by the host activity lifecycle.

A fragment object processes its own events.

Fragments can be dynamically added or removed from an Activity,based on user interaction with the application.

Fragments support transaction with an Activity.

What’s the difference between activity and intent in Android?

In very simple language, Activity is your user interface and whatever you can do with a user interface. When you move from one user interface, you need to launch that new user interface with an Intent. The Intent is your event that is passed along with data from the first user interface to another.