IPhone App Dev: CGPoint

레이블이 CGPoint인 게시물을 표시합니다. 모든 게시물 표시

2011년 8월 16일 화요일

Cannot use NSMutableArray with CGPoint.

In .net we use like this

List<CGPoint> list;

but since we don't have that in objective-c, we use this.

NSMutableArray * pointArray = [NSMutableArray array];

[pointArray addObject:[NSValue valueWithCGPoint:location]];

[pointArray addObject:[NSValue valueWithCGPoint:lastPoint]];

CGPoint retrievedPoint = [[pointArray objectAtIndex:0] CGPointValue];

no more words to say.

That's all~

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CGPoint a, b;
if(a == b)

The above codes does not work;; Ah~~~ no~~~

so you have to use below.

if (CGPointEqualToPoint(location, lastPoint)) {

}