Activity is an application component that gives a user interface where the user can interact. The fragment is only part of an activity, it basically contributes its UI to that activity. Activity is not dependent on fragment. Fragment is dependent on activity.
What is a fragment in Android?
A Fragment represents a reusable portion of your app’s UI. A fragment defines and manages its own layout, has its own lifecycle, and can handle its own input events. Fragments cannot live on their own–they must be hosted by an activity or another fragment.
When should you use fragment rather than activity?
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.
What is the use of fragments in Android applications?
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.
Whats is a fragment?
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 difference between a fragment and an activity?
Activity is the part where the user will interacts with your application. … Fragment represents a behavior or a portion of user interface in an Activity. You can combine multiple fragments in a single activity to build a multi-pane UI and reuse a fragment in multiple activities.
What is difference between intent and fragment?
2.by intent you can communicate between android components such as activities, content providers, broadcast receivers and services, but by fragment you cant and in the otherwise fragment is child of activity.
Why do we use fragments?
According to the Android documentation, a fragment is a part of applications user interface that is bound to an activity. … Fragments help enrich your UI design, pass data between different screens, and adapt to different device configurations. Unlike activities, fragments are usable.
What are the benefits of Android 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.