Note: This tutorial assumes you’re comfortable the basics of Android programming and understand what the activity lifecycle means. Add and replace fragments by using transactions.Let your fragments send information to an activity.Create and add fragments to an activity.Through building this app you’ll learn how to: When the user selects a breed, the app displays information about it.

In this tutorial, you’ll build a mini-encyclopedia of dogs which displays a list of dog breeds arranged in a grid. Adaptability: Representing sections of a UI as different fragments and utilizing different layouts depending on screen orientation and size.Reusability: Placing behavior or UI parts into fragments that multiple activities can share.Modularity: Dividing complex activity code across fragments for better organization and maintenance.However, if you use them well, they can provide: In the same way that you don’t actually need an army of little helpers to do your bidding, you don’t have to use fragments. That’s kind of like the relationship between activities and fragments. You have a lot to do, so you might employ a few minions to run around and do your laundry and taxes in exchange for lodging and food. Imagine for a moment that you’re a super villain. In many ways, they have functionality similar to activities. As the name would suggest, fragments are not independent entities, but are tied to a single activity. Huyen Tue Dao wrote the original tutorial.Ī fragment is an Android component that holds part of the behavior and/or UI of an activity. Update note: Aaqib Hussain updated this tutorial for Kotlin and Android Studio 3.3.

Android studio fragment id