Need clarifications working with Views in iOS [closed]

Question

It's difficult to tell what is being asked here. This question is ambiguous, vague, incomplete, overly broad, or rhetorical and cannot be reasonably answered in its current form. For help clarifying this question so that it can be reopened, visit the help center.

Closed 8 years ago.

Ok, I'm learning programming for iOS with Stanford's online course on iTunes U (CS193P) but I can't exactly get a hold on how all the stuff from UIView works.

Could someone explain how the following things work cohesively and how I should use them?

CGContextRef CGContext(if they're not the same thing) drawRect awakeFromNib

Thanks in advance!

Answer 1

CGContextRef 

is just the reference to

CGContext.

drawRect 

makes your view to draw (or redraw) itself at selected rect. Read here. I never used it by myself, for me it was enough to do all work in viewWillAppear: and viewDidLoad:.

After all outlets and actions are connected, the nib loader sends awakeFromNib to every object in the nib. (c) Read about it here.