When should I use fragments Android?

When should we use fragments?

4 reasons to use Android Fragments

  • 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 you should use fragments on your Android application?

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.

Is it better to use activity or fragment?

Activities are an ideal place to put global elements around your app’s user interface, such as a navigation drawer. Conversely, fragments are better suited to define and manage the UI of a single screen or portion of a screen. Consider an app that responds to various screen sizes.

What are the benefits of fragments?

Fragments allow such designs without the need for you to manage complex changes to the view hierarchy. By dividing the layout of an activity into fragments, you become able to modify the activity’s appearance at runtime and preserve those changes in a back stack that’s managed by the activity.

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Are fragments faster than activities?

I find that communicating between fragments while their activity is open allows for faster responses and the effective sharing of data, since the data only needs to be instantiated once, in the parent activity.

How can two fragments communicate?

Communicating with fragments

  1. Table of contents.
  2. Share data using a ViewModel. Share data with the host activity. Share data between fragments.
  3. Get results using the Fragment Result API. Pass results between fragments. Pass results between parent and child fragments. Receive results in the host activity.

How do fragments work?

How to use Fragments?

  1. First of all decide how many fragments you want to use in an activity. …
  2. Next based on number of fragments, create classes which will extend the Fragment class. …
  3. Corresponding to each fragment, you will need to create layout files in XML file.

What are Android activities?

An activity provides the window in which the app draws its UI. … Typically, one activity in an app is specified as the main activity, which is the first screen to appear when the user launches the app. Each activity can then start another activity in order to perform different actions.

What is a fragment and examples?

A fragment is a group of words that does not express a complete thought. It is not a complete sentence, but it could be a phrase. Examples of Fragment: the boy on the porch. to the left of the red car.

What’s the difference between fragment and activity?

Activity is an application component that gives a user interface where the user can interact. The fragment is a part of an activity, which contributes its own UI to that activity.

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