nfcsoli.blogg.se - Fragment examples

#Fragment examples android#
#Fragment examples code#

Modularity: If a single activity is having too many functional components, its better to divide it into independent fragments, hence making the code more organized and easier to maintain.

Main use of Fragments in Androidįollowing are the 3 main usage of Fragments in Android, for which Fragments were introduced: Therefore it is also suggested to keep the design of a Fragment modular and independent, so that it can be used on different screens/activity based on the screen size or any other factor. If the screen size is big, then we can easily show 2 or maybe more fragments on the screen, but if the display size is smaller, it is advised to use Fragments in separate activities.

#Fragment examples android#

The usage of Fragment in an android app totally depends on the screen size of the device on which the app is being used. Well, before the introduction of Fragments(Fragments were added in Honeycomb version of Android i.e API version 11), we could only have a single Activity on a screen at a given point of time, and there was no way to divide the screen and control the different parts separately.Īnd as the screen size of the Mobile devices are increasing, it makes more sense to show more stuff at the same time on the screen, hence Fragments are very useful, and are very popular amongst the Android developers community. If we already have Activity, and a Fragment is just like a sub-activity, then what is the use of having an additional component in Android? So, Fragment is a very interesting component of Android OS which can be used in multiple ways in an android app. Generally, fragments are used to create multi-pane UI in Android apps.Ī Fragment has it's own Layout for the UI(user interface), but we can even define a fragment without any layout, to implement a behavious which has no user interface, more like a background service. If you know Biology, and are aware of the concept of Host and Parasite, then in Android, Activity is the host while a Fragment is a parasite.įragment has its own lifecycle events, which are different from an Activity's lifecylce events.Īn Activity can have any number of fragments in it, although it is suggested to not to use too many fragments in a single activity.Īlso, a fragment is a re-usable component, hence, a single fragment can be included in multiple activities, if required.

It functions independently, but as it is linked to the Activity, when an activity is destroyed, the fragment also gets destroyed.

Android SDK Manager & required PackagesĪ Fragment in Android is a component which can be used over an activity to define an independent modular UI component attached to the activity.

Weeks have passed, and he still has not done any of it yet.

Correct: Our new landlord was expected to make changes, such as fixing the plumbing, installing a new washer, and replacing the security gate lock.

Has not done any of it yet and weeks have passed. Such as fixing the plumbing, installing a new washer, and replacing the security gate.

Incorrect: Our new landlord was expected to make changes.

Rewrite the fragment or the entire passage that contains the fragment.

Correct: Joe is training every day for the marathon next month.

Correct: Joe trains every day for the marathon next month.

Correct: My roommate’s pug loves to lie around in the sun all day.

Incorrect: Loves to lie around in the sun all day.

Revise the fragment by adding whatever is missing – subject, verb, complete thought.

Correct: If the front door is locked, use the back entrance.

Incorrect: If the front door is locked.

Correct: I forgot to eat breakfast on the morning of my driver’s test.

Three Ways to Turn a Fragment into a Complete SentenceĪttach the fragment to a nearby complete sentence (It is unclear did something happen when my brother was practicing martial arts?)

Example: Such as, my brother was practicing martial arts.

It is a misuse of “such as, for example, especially,” etc.

(What happened when “my mother married my father?”) Example: When my mother married my father.(What is better or worse? What is it modifying?) It is missing a verb or has the wrong verb form.Example: Ran to the store faster than a rabbit.Here are the distinguishing features of a sentence fragment: While it may be punctuated to look like a complete sentence, a fragment cannot stand on its own. Sentence fragments are usually missing a subject or verb, or they do not express a complete thought. A sentence fragment is a group of words that looks like a sentence, but actually isn’t a complete sentence.