losamad.blogg.se - Android studio fragment return intent

Override onCreateView to link the appearance.Creating a Fragment in AndroidĬreating a fragment is simple and involves four steps: In other words, you can click the “Back” button and undo a fragment activity when you perform a fragment transaction.Ī fragment lives in the ViewGroup of the host Activity’s view hierarchy. Fragments support transaction with an Activity.This can happen when the host Activity is in the “running” state. Fragments can be dynamically added or removed from an Activity, based on user interaction with the application.A fragment object processes its own events.It has its own lifecycle however, it is directly impacted by the host activity lifecycle.

It does not have existence outside of one.

A fragment is always embedded in an activity.

Fragments can be used to build action bar customization with the list and tab modes.įragment have the following characteristics.

Fragments can be used where dialog boxes are needed.

Fragments can be used to provide Fixed/Scrolling/swipe tab displays.

Fragments can be used to build flexible user interfaces across different screen sizes.

With Fragments, developers now can update another portion of the UI on the screen that corresponds to the user selection, without needing to move the user to another screen.Ī classic example is a news application that allows a user to select the headline on the left side of the application and it then displays the details of the story on the right side corresponding to user selection.įragments can be used in the following scenarios: Classically, developers would have to build a new Activity whenever the user interacted with the application. The Basics of Android Fragmentsĭevelopers can combine one or more fragments to build a single activity or even reuse fragments across multiple activities.įragments were introduced in Android 3.0 to improve the user experience. In this Android fragment tutorial, we will learn how to use fragments in Android with code.

In layman’s terms, this means an Activity object can be composed of one or more fragments, each having its own user interface definition. The Android documentation describes Fragment as a portion of user interface in an Activity Object. Fragment is an Android programming aspect that represents a portion of the user interface of what a user sees on the application window.