How can I add CGPoint objects to an NSArray the easy way? How can I add CGPoint objects to an NSArray the easy way? objective-c objective-c

How can I add CGPoint objects to an NSArray the easy way?


With UIKit Apple added support for CGPoint to NSValue, so you can do:

NSArray *points = [NSArray arrayWithObjects:                     [NSValue valueWithCGPoint:CGPointMake(5.5, 6.6)],                     [NSValue valueWithCGPoint:CGPointMake(7.7, 8.8)],                     nil];

List as many [NSValue] instances as you have CGPoint, and end the list in nil. All objects in this structure are auto-released.

On the flip side, when you're pulling the values out of the array:

NSValue *val = [points objectAtIndex:0];CGPoint p = [val CGPointValue];


I use this:

Create array:

NSArray *myArray = @[[NSValue valueWithCGPoint:CGPointMake(30.0, 150.0)],[NSValue valueWithCGPoint:CGPointMake(41.67, 145.19)]];

Get 1st CGPoint object:

CGPoint myPoint = [myArray[0] CGPointValue];


You can also write this in a minimal form of:

CGPoint myArray[] = { CGPointMake(5.5, 6.6), CGPointMake(7.7, 8.8) };CGPoint p2 = myArray[1];