Android Why Use Fragments

Allow the Activity to use many fragments to change between them to reuse these units. For example to get a reference of the TextView use bindinggreetingText and all the methods available for a TextView will be available to you.

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When you plate cant hold a big cake.

Android why use fragments. A fragment can be used in multiple activities. Screen is small You can easily use a a few plates Activity to hold each of. A developer can combine multiple fragments into one operation to build a multi-pane user interface and reuse the fragment in multiple operations.

In the onCreateView method use the. Passing information between app screens. A Fragment is a self-contained component with its own user interface UI and lifecycle that can be reused in different parts of an apps UI.

Fragments in Android A fragment an instance of the Fragment class represents a behavior or part of the user interface in an activity an instance of the Activity class. Sep 8 2017 5 min read Fragments are a part of most Android apps. You might claim that.

When they make sense use them. A Fragment in Android is a component which can be used over an activity to define an independent modular UI component attached to the activity. Fragment life cycle is closely related to the life cycle of its host activity which means when the activity is paused all the fragments available in the activity will also be stopped.

With Architecture Components the role of fragments has evolved. Its an API made available by Google since 30 Honeycomb or API level 11 to help make reusable UI components between Phone and. Fragments are created in order to.

The Android documentation describes Fragment as a portion of user interface in an Activity Object. This example demonstrate about Fragment Tutorial with Example in Android StudioStep 1 Create a new project in Android Studio go to File New Project and. Fragments provide glue and coordination of.

Fragment is an Android programming aspect that represents a portion of the user interface of what a user sees on the application window. The first argument to replace is the ID of container whose Fragments will be replaced. This session will explore the changing responsibilities of a fragment and talk about ongoing.

A fragment can implement a behaviour that has no user interface component. A Fragment represents a reusable portion of your apps UI. It is in some sense a more OO ways of.

It functions independently but as it is linked to the Activity when an activity is destroyed the fragment also gets destroyed. Using Fragments to Simplify the Android Navigation Drawer The Android navigation drawer has become a ubiquitous UI feature on Android devices but its usually unnecessary to hide and show on larger devices like tablets. Historically each screen in an Android app was implemented as a separate.

In most cases I think it is quicker to create 2 different Activities 1 for tablets and 1 for handsets and to share the. I know why to use fragments and the Android developer site good explains this. 4 reasons to use Android Fragments 1.

I find they make sense in maybe about 10-20 of apps- I rarely see the need. Fragments have their uses such as when you want to page in and out parts of the screen or when you want to drastically change the UI in different orientations. There is a misconception that either everything in your app is made of Fragments or you choose an other route like for example views.

Fragments cannot live on their own–they must be hosted by an activity or another fragment. When they dont skip them. But in most cases I want on the tablets the different parts to have their own special behavior and UI and I dont know how fragments can help.

I have some instances where I could reuse a fragment entirely in another App. You shouldnt always use fragments. Dealing with device form-factor differences.

The Activity class is often thought of as the main UI class in Android. The Fragment is totally dependent to the Context of an activity so if I need something generic that I can reuse and handle in many Activities I can create my own custom layouts or. A fragment defines and manages its own layout has its own lifecycle and can handle its own input events.

A Fragment can also be used without a UI in order to retain values across configuration changes but this lesson does not cover that usage. The fragments view hierarchy becomes part of or attaches to the hosts view hierarchy. The detail container is a FrameLayout because the Fragment that is displayed will be replaced using FragmentTransactions replace method.

If the FrameLayout in this example were replaced with a Fragment then both the WorkStationListFragment and whatever detail Fragment is currently shown would be.

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