CoreGraphics

Question 1

In Core Graphics:

How can you get the context?

Answer 1

Using UIGraphicsGetCurrentContext.

CGContextRef ctx = UIGraphicsGetCurrentContext();

Question 2

In Core Graphics:

What function is used to draw an arc of a circle?

Answer 2

CGContextAddArc (context, x, y, radius, startAngle, endAngle, clockwise)

Question 3

In Core Graphics:

What is the function used to draw the current path?

Answer 3

CGContextDrawPath (context, mode)

Question 4

In Core Graphics:

What function is used to draw a rectangle?

Answer 4

CGContextAddRect (context, rect)