View.getContext(): Returns the context the view is currently running in. Usually the currently active Activity. Activity.getApplicationContext(): Returns the context for the entire application (the process all the Activities are running inside of). Use this instead of the current Activity context if you need a context tied to the lifecycle of the entire application, not just … Read more
You can use this outside activities – all you need is to provide a Context: Then to retrieve your different widgets, you inflate a layout: EDIT as of July 2014 Davide’s answer on how to get the LayoutInflater is actually more correct than mine (which is still valid though).
This is the activity the tools UI editor uses to render your layout preview. It is documented here: This attribute declares which activity this layout is associated with by default. This enables features in the editor or layout preview that require knowledge of the activity, such as what the layout theme should be in the preview … Read more
Do this: In the Android Manifest file, declare the following. Then write the class: Now everywhere call MyApplication.getAppContext() to get your application context statically.
My Activity is trying to create an AlertDialog which requires a Context as a parameter. This works as expected if I use: However, I am leery of using “this” as a context due to the potential for memory leaks when Activity is destroyed and recreated even during something simple like a screen rotation. From a … Read more
Putting it simply: As the name suggests, it’s the context of the 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). You can get the context by invoking getApplicationContext(), getContext(), getBaseContext() or this (when in a class that extends … Read more