Question: What Is A Context In Android?

Is it possible activity without UI in Android?

The answer is yes it’s possible.

Activities don’t have to have a UI.

It’s mentioned in the documentation, e.g.: An activity is a single, focused thing that the user can do..

How do you find context?

Rules:Use getContext() or Activity. … Use getApplicationContext() if you need application-level context, which is not tight to any views/activities (for instance, in BroadcastReceiver or Service)Do not use getBaseContext(). … Make use of WeakReference if you need to access context from inside the threads.More items…•

What is difference between context and activity?

7 Answers. They are both instances of Context, but the application instance is tied to the lifecycle of the application, while the Activity instance is tied to the lifecycle of an Activity. … The Activity context presumably has some information about the current activity that is necessary to complete those calls.

What is getBaseContext in Android?

getBaseContext() is the method of ContextWrapper . And ContextWrapper is, “Proxying implementation of Context that simply delegates all of its calls to another Context. Can be subclassed to modify behavior without changing the original Context.” (as per javadocs)..

What is context service?

Samsung developing Context, a service that gathers user data and shares it with other apps. … Dubbed Context, the service monitors everything the user does on the mobile device, including text input, app usage, and even information from the phone’s sensors.

What is the use of context in Java?

A Context represents your environment. It represents the state surrounding where you are in your system. For example, in web programming in Java, you have a Request, and a Response. These are passed to the service method of a Servlet.

What is a fragment example?

Definition of a Sentence Fragment Sentence fragments are groups of words that look like sentences, but aren’t. To be a sentence, groups of words need to have at least one independent clause. … For example, ‘I like cheeseburgers’ is an independent clause.

What is a fragment in Android?

Fragments Part of Android Jetpack. A Fragment represents a behavior or a portion of user interface in a FragmentActivity . You can combine multiple fragments in a single activity to build a multi-pane UI and reuse a fragment in multiple activities.

What is context in Android with example?

it’s the context of current state of the application/object. It lets newly-created objects understand what has been going on. Typically, you call it to get information regarding another part of your program (activity and package/application). … This example demonstrates how do I display context in an android textView.

What is the meaning of context?

noun. the parts of a written or spoken statement that precede or follow a specific word or passage, usually influencing its meaning or effect: You have misinterpreted my remark because you took it out of context. the set of circumstances or facts that surround a particular event, situation, etc. Mycology.

What are interfaces in Android?

An interface is a reference type in Java. It is similar to class. It is a collection of abstract methods. A class implements an interface, thereby inheriting the abstract methods of the interface. Along with abstract methods, an interface may also contain constants, default methods, static methods, and nested types.

How can I get current activity?

Android called “CurrentActivity”. Then if you want to access the current activity anywhere in your Android application, library, or plugin simply call: CrossCurrentActivity. Current. Activity and you will have the current activity.

What is the difference between getActivity and Getcontext?

There is huge difference. An android application can have more than one activity, when you say getApplicationContext(), it gives you the context of entire application: see details : However when you say getActivity() it just gives you the instance of activity which you are currently in.

What is the use of FragmentManager in Android?

A FragmentManager manages Fragments in Android, specifically it handles transactions between fragments. A transaction is a way to add, replace, or remove fragments.

What does context mean in Android?

the current stateWhat is Context in Android? … It is the context of the current state of the application. It can be used to get information regarding the activity and application. It can be used to get access to resources, databases, and shared preferences, and etc. Both the Activity and Application classes extend the Context class.

What is an example of a context?

The definition of context is the words that surround other words and impact their meaning or the setting in which something occurs. … An example of context is the history surrounding the story of Shakespeare’s King Henry IV.

How do I get Android activity?

Find activityOn your Android phone or tablet, open your device’s Settings app Google. Manage your Google Account.At the top, tap Data & personalization.Under “Activity and timeline,” tap My Activity.View your activity: Browse through your activity, organized by day and time.