iphone: How do I get the location of a touch down event?

Question

I have an empty View-Based app. I'd like to do something with the x,y coordinates of every touch down on the screen. How do I do this?

Answer 1

Override the

- (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event

function (from the NSRespondrer class). You can override it from your view class. The 'touches' variable hold a set of 'UITouch' instances that you can query for the location in the view.

Answer 2

The correct answer to this question should be RTFM (read the faq meticulously) as it's a basic tenet of the UI for iPhone.

don't mark this down because I suggest reading the documentation - that should always be the first place to look, not asking a question online :(