What is onActivityCreated in fragment?

What is onActivityCreated in fragment?

onActivityCreated(Bundle) tells the fragment that its activity has completed its own Activity.

What is fragment and its life cycle?

Android Fragment is the part of activity, it is also known as sub-activity. There can be more than one fragment in an activity. Fragments represent multiple screen inside one activity. Android fragment lifecycle is affected by activity lifecycle because fragments are included in activity.

What are the differences between onCreate () onCreateView () and onActivityCreated () in fragments and what would they each be used for?

The onCreate() is called first, for doing any non-graphical initialisations. Next, you can assign and declare any View variables you want to use in onCreateView() . Afterwards, use onActivityCreated() to do any final initialisations you want to do once everything has completed.

Why is onActivityCreated deprecated?

Need for onActivityCreated() deprecation In such similar fashion android developers saw the tight coupling of code dependent to the Activity’s life cycle. And they decided that it is not a good practice anymore to be dependent on the activity attach to do certain things inside the fragment.

Is onActivityCreated deprecated?

4 Answers. Show activity on this post. This solution is deprecated.

What can I use instead of onActivityCreated?

onActivityCreated() is deprecated in fragment 1.3. 0-alpha02 and there is a recommendation to use onViewCreated() instead.

What is fragment explain with example?

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

What are fragments?

Fragments are incomplete sentences. 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.

What is the fragment life cycle in Android?

A fragment can be used in multiple activities. 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. A fragment can implement a behaviour that has no user interface component.

Is Onactivitycreated deprecated?

What is the fragment lifecycle in Android?

How many callback methods are in the fragment life cycle?

two callback methods
The Fragment class has two callback methods, onAttach() and onDetach() , that you can override to perform work when either of these events occur.

What are the main types of fragments?


  • Prepositional Phrase Fragments. Prepositional phrase fragments involve prepositions (for, to, during, through, etc.).
  • Infinitive Fragments.
  • -ing Fragments.
  • Dependent Clauses.
  • Fragments using subordinate clauses.
  • Relative pronoun fragments.

How many types of fragments are there?

There are three main types of sentence fragments: sentences missing a subject, sentences missing a verb, and subordinate clause fragments.

Why fragment is used 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.

What are the two types of fragments?


  • Complete Sentence. It must have both a subject and a verb. It must express a complete thought.
  • Types of Fragments:
  • Lacking a Verb.
  • Lacking a Subject.
  • Dependent Clause Punctuated as a Sentence.
  • Added Detail Fragments.
  • –ing Fragments.
  • What is the fragment lifecycle?

    This topic discusses the Fragment lifecycle in detail, explaining some of the rules that determine a fragment’s lifecycle state and showing the relationship between the Lifecycle states and the fragment lifecycle callbacks. When a fragment is instantiated, it begins in the INITIALIZED state.

    Why Android fragment onactivitycreated () is deprecated?

    Why Android fragment onActivityCreated () is deprecated? The initial purpose of onActivityCreated () was to get callback from activity to it’s fragments when activity is created, so in onActivityCreated () callback we can do something in fragment. Hence, the need for such thing lead to development of onActivityCreated ().

    When does the lifecycleobserver start listening to a fragment?

    This component could automatically start listening when the fragment becomes active and stop when the fragment moves to an inactive state. As an alternative to using a LifecycleObserver, the Fragment class includes callback methods that correspond to each of the changes in a fragment’s lifecycle.

    What is a fragment in an activity?

    It represents a behavior or a portion of user interface in an Activity. We can combine multiple Fragments in single Activity to build a multi pane UI and reuse a Fragment in multiple Activities. A fragment must always be embedded in an activity and the fragment’s life-cycle is directly affected by the host activity’s life-cycle. Recommended read?