Question: What Is Context In Android With Example?

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..

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…•

Whats does context mean?

the setting of aContext means the setting of a word or event. You might say that you can’t understand what happens without looking at the context. … When someone takes your words but makes it sound like you meant something else, they’ve taken your words out of context.

What is a context class?

The context class is used to query or save data to the database. It is also used to configure domain classes, database related mappings, change tracking settings, caching, transaction etc. The following SchoolContext class is an example of a context class.

What is context android?

What 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 context how is it used?

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 context in Android Kotlin?

fun askMicrophonePermission(context: Context) Interface to global information about an application environment. This is an abstract class whose implementation is provided by the Android system. FYI. In a member of a class, this refers to the current object of that class.

What is a 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. A property of the Servlet is the ServletConfig, and within that is a ServletContext.

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 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 use of Servlet context?

Interface ServletContext. Defines a set of methods that a servlet uses to communicate with its servlet container, for example, to get the MIME type of a file, dispatch requests, or write to a log file. There is one context per “web application” per Java Virtual Machine.

What is a context object?

A context object encapsulates the references/pointers to services and configuration information used/needed by other objects. It allows the objects living within a context to see the outside world. Objects living in a different context see a different view of the outside world.