Let’s understand this in simple words. The ApplicationContext is the central interface within a Spring application that is used for providing configuration information to the application. It’s created when the application starts running.

What is context and application context?

In the official Android documentation, context is defined as: Interface to global information about an application environment. … It allows access to application-specific resources and classes, as well as up-calls for application-level operations such as launching activities, broadcasting and receiving intents, etc.

Why context is used in Android?

Context provides the connection to the Android system and the resources of the project. It is the interface to global information about the application environment. The Context also provides access to Android Services, e.g. the Location Service. Activities and Services extend the Context class.

What is the difference between context and application?

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. Thus, they have access to different information about the application environment.

What is flask application context?

The application context keeps track of the application-level data during a request, CLI command, or other activity. Rather than passing the application around to each function, the current_app and g proxies are accessed instead. … A corresponding application context is pushed when a request context is pushed.

What is application Context in C#?

You can use the ApplicationContext class to redefine the circumstances that cause a message loop to exit. By default, the ApplicationContext listens to the Closed event on the application’s main Form, then exits the thread’s message loop.

How many application Context will be there for an application?

With that instanciations, you will get 2 totally independent application contexts. One bean declared in first will not be found in the other. Here you can retrieve from context1 only beans declared in it, but from context2 you will retrieve beans from context2 and context1 .

Can a fragment exist without UI?

The Android Developer guide has a decent section on the use of Fragments. One way to use Fragments is without a UI.

How do I find the location of my Android phone?

1. Provide permissions in manifest file for receiving location update.
2. Create LocationManager instance as reference to the location service.
3. Request location from LocationManager.
4. Receive location update from LocationListener on change of location.

How do I get application context from activity?

Any time you need the application context, just get it from App. context . Application is always initialized first whether your process runs, whether it’s an activity, a service, or something else. You will always have access to the application context.

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What is context in coding?

A programming context can be defined as all the relevant information that a developer needs to complete a task. Context comprises information from different sources and programmers interpret the same information differently based on their programming goal.

What is 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 the difference between activity context and application context MCQS?

Question 18: What is the difference between Activity context and Application Context? (A) The Activity instance is tied to the lifecycle of an Activity. while the application instance is tied to the lifecycle of the application. … while the application instance is tied to the lifecycle of the application.

What is the difference between G and session in Flask?

session gives you a place to store data per specific browser. As a user of your Flask app, using a specific browser, returns for more requests, the session data is carried over across those requests. g on the other hand is data shared between different parts of your code base within one request cycle.

Is Flask request Global?

When the Flask application handles a request, it creates a Request object based on the environment it received from the WSGI server. Because a worker (thread, process, or coroutine depending on the server) handles only one request at a time, the request data can be considered global to that worker during that request.

How do you make a Flask app?

1. Choose a Python version. …
2. Install a text editor or IDE. …
3. Start a new project with virtualenv. …
4. Install Flask and the Twilio Python SDK. …
5. Create a simple Flask application. …
6. The Django Alternative. …
7. Install ngrok.

How can you inject Java collection in Spring?

1. Inject array with @Autowired.
2. Injecting Set with @Autowired.
3. Injecting List using Constructor.
4. Injecting Map with Setter method.
5. Injecting Components as List.
6. Injecting Bean references as collection.
7. Injecting List of beans using @Qualifier.
8. Sort the Injecting order of beans in List.

What is @ContextConfiguration in Spring?

@ContextConfiguration defines class-level metadata that is used to determine how to load and configure an ApplicationContext for integration tests.

Which of the following are provided by application context?

• Publishing events to registered listeners by resolving property files.
• Methods for accessing application components.
• Supports Internationalization.
• Loading File resources in a generic fashion.

What is Spring application context?

The Application Context is Spring’s advanced container. Similar to BeanFactory, it can load bean definitions, wire beans together, and dispense beans upon request. … FileSystemXmlApplicationContext − This container loads the definitions of the beans from an XML file.

Can I track someone's location by phone number?

You can find someone’s location by cell phone number using an app called Minspy. Minspy utilizes a technology known as “cell triangulation technology.” In this method, three cell phone towers triangulate the phone’s location. This is generally used by phone network providers to track a phone number in real-time.

Can my phone be tracked if Location Services is off?

Smartphones can still be tracked even if location services and GPS are turned off, according to Princeton University researchers. … The technique, called PinMe, shows it is possible to track a location even if the location services, GPS, and Wi-Fi are turned off.

Where are SMS stored in Android file system?

In general, Android SMS are stored in a database in the data folder located in the internal memory of the Android phone.

Can I create a fragment without activity?

Fragment can’t be initiated without Activity or FragmentActivity. As soon as you create an instance of the Fragment class, it exists, but in order for it to appear on the UI, you must attach that fragment to an activity because a fragment’s lifecycle runs parallel to an activity’s lifecycle.

What is headless fragment?

Headless Fragments are Fragments which do not have any UI, i.e. they do not inflate any XML resource or create and return a View. In terms of MVC(Model View Controller), they contain only the Controller part without actually be responsible directly for controlling a View.

Is Fragment life cycle dependent on activity life cycle?

A fragment can be reuse in multiple activities. A fragment life cycle is closely related to the lifecycle of its host activity which means when the activity is in the pause state, all the fragments available in the activity will also stop.

How do I get an application inside a fragment?

Use appCtx = (UnityMobileApp) getActivity(). getApplication(); in your fragment. The method getActivity() may have possibility to return null. This may crash your app.So it is safe to use that method inside the onActivityCreated() .

What is the difference between this and getApplicationContext?

this refers to the MainActivity context which extends Activity class but the base class ( Activity ) also extends Context class, so it can be used to offer activity context. getBaseContext() offers activity context. getApplication() offers application context. getApplicationContext() also offers application context.

How can I get application context in Android?

Do this: In the Android Manifest file, declare the following. Now everywhere call MyApplication. getAppContext() to get your application context statically.

What is context in web?

The context in which web components execute is an object that implements the ServletContext interface. You retrieve the web context using the getServletContext method. The web context provides methods for accessing: Initialization parameters. Resources associated with the web context.

What is context in data structure?

In summary, a context comprises use cases and algorithms in which data objects are used through specific Roles. … A context object is instantiated for each enactment of a use case for which it is responsible.