objet Faites glisser verticalement

Question

j'aime faire glisser cet objet verticalement au lieu de horizontalement, ce qui est doin maintenant:

- (void)touchesMoved:(NSSet *)touches withEvent:(UIEvent *)event { 
    UITouch *touch = [[event allTouches] anyObject]; 
    CGPoint location = [touch locationInView:touch.view]; 
    if (CGRectContainsPoint(myObject.frame, location)){ 
    CGPoint xLocation = CGPointMake(location.x, myObject.center.y); 
    myObject.center = xLocation; 
    } 
} 

Answer 1

CGPoint yLocation = CGPointMake(myObject.center.x, location.y); 
myObject.center = yLocation;