overload method
- (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event { [super touchesBegan:touches withEvent:event]; UITouch *touch = [touches anyObject]; NSArray *allTouches = [touches allObjects]; gestureStartPoint = [touch locationInView: self.view]; NSLog(@"cover touchesBegan count=%u", [allTouches count]); }
OPTION key +Ctrl for testing in simulator.