In Objective-C I'm starting to work with CGPoints and when I need to add two of them the way I'm doing it is this: CGPoint p1 = CGPointMake(3, 3); CGPoint p2 = CGPointMake(8, 8); CGPoint p3 = CGPo...

I have a CGPoint declared in a UIView class, in my viewController I try to check if that CGPoint is not equal to CGPointZero, but I get this error:Invalid operands to binary expression ('CGPoint' (...

How can I convert CLLocation or CLLocationCoordinate2D to CGPoint. I have seen CGPoint point = [mapView convertCoordinate:myCoordinates toPointToView:self.view]; But I don't need to use mapView...

After CGPointMake let me down I found out that we can initalise a static const CGPoint like this instead: static const CGPoint p = { 0.f, 0.f }; It works but what is the curly bracket notation a...

I'm sorry for the title i don't know what to write there. I have a scrollView with many pages and in each page there are different animations that should start when the user switch to that page. ...

In my iOS app I am observing changes to the contentOffset property of my scrollView subclass. My observer handler looks like this: - (void)observeContentOffsetHandler:(id)aContentOffset { NSLog(...

Note: This is question to which I have already found an answer. It seems that posting a question after finding an interesting answer is encouraged, so I am posting this. Someone else is likely to h...

I have a bunch of CGPoints from a CCTMXLayer I want to save to NSUserDefaults but cannot seem to figure out an elegant way of doing so. Originally I was hoping to save an NSDictionary with an NSMu...

Consider a screen point (CGPoint) and a view (UIView), which is somewhere inside the view hierarchy (it can be a subview of other views). How can you convert the point to a point relative to the ...

I have converted a longitude and latitude on my MapView to a MKMapPoint. I then want to move an imageView to that point using the imageViews center property. It seems that I somehow need to convert...

could anyone explain to me what CGPointMake does please? image.position = CGPointMake(80,200); id go = [MoveTo actionWithDuration:2 position:CGPointMake(190,460)]; for example this syntax above....