Force cancel a touch iphone

Question

Hi,

I have 4-5 uibuttons(also can use uiview instead of button) side by side next to each other.

When user moves touch from one button to other(outside of self view), i want to cancel this touch and start touch for the next button(view).

How to achieve this functionality?

I used uiview instead of buttons kept it next to each other, handled its touches events.

-(void)touchesMoved:(NSSet *)touches withEvent:(UIEvent *)event{

UITouch *touch = [touches anyObject]; //anyobject
CGPoint touchLocation = [touch locationInView:touch.view];
if(![self pointInside:touchLocation withEvent:nil])
{
 //touch is outside of my current view , do something to cancel current touch and i can get touchesmoved for the next view . help me to write something.
}

}

Is there any other way to handle event when we have such UI.

Thanks.

Answer 1

If you are using UIButtons, you can just use the button's events to do this. When you get a touchDown or touchDragInside, then play your note. Stop when you get a touchUpInside or a touchDragOutside.

Answer 2

You need to handle the touches yourself from a UIWindows subclass, or from the UIViewController container (in this case remember to disable the userInteractionEnabled property)