TL;DR:
Is it the second parameter of build method or, name declaration of the BuildContext parameter in a conventional way?
I'm learning the basic syntax of build method in Flutter by breaking down each element of "Widget build(BuildContext context)".
My understanding so far is below:
@override: annotation
Widget build() {}: build method returns a widget
- BuildContext: a parameter/argument that contains information about the location in the tree at which this widget is being built
However, it's not been clear what the last word "context" exactly means even after I read related SO questions and official documents.
What I made sure so far is that the name "context" is changeable to whatever you want, meaning it doesn't have to be the same name as "context".
Best Answer
From the docs,
BuildContext
is:context
is aBuildContext
instance which gets passed to the builder of a widget in order to let it know where it is inside the Widget Tree of your app.One of the common uses is passing it to the
of
method when using an Inherited Widget.Calling
Something.of(context)
, for example, returns theSomething
relative to the closest widget in the tree that can provide you thatSomething
.You can read more about
BuildContext
here in the docs.