Dragging UIView under finger [duplicate]

Answer 1

Here is the code from Apple's MoveMe project the key is to do this in the touchesMoved method. It allows the UIView(PlacardView) to see the touch and move wherever the user's touch goes. Hope this helps.

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

UITouch *touch = [touches anyObject];

// If the touch was in the placardView, move the placardView to its location
if ([touch view] == placardView) {
    CGPoint location = [touch locationInView:self];
    placardView.center = location;
    return;
   }
}