Difference in-between getContext, getApplicationContext and getBaseContext. And When to use each of them?

What is Context actually?

- context is the blueprint of activities and application, it can be used to get information regarding activity and application.  [more on stackoverflow]

getContext - returns the context view of current or acive Activity.

getApplicationContext - returns the context view of all the activities from the entire application.

getBaseContext - returns the context view of an Activity to another Activity. to separate or specify those two context in an Activity BaseContext is used.

When to use them:

getContext - if your method only needs the context of current activity then we use get context.

getApplicationContext - if your method if outside of an OnCreateMethod and you want to keep alive the context longer than getContext then you should go for getApplicationContext.

getBaseContext - suppose you want to show a alert dialogue in your current activity. but the alert dialogue contain its own context so what to do? then you should go for getBaseContext otherwise it won't able to find its own context.

basecontext mainly use contextwrapper function to make context more specific.

[more details on stackoverflow]