Question

- (void)viewDidLoad
{
    moveObjectTimer = [NSTimer timerWithTimeInterval:0.1 target:self selector:@selector(moveObject) userInfo:nil repeats:YES]


-(void)moveObject 

    image.center = CGPointMake(image.center.x, image.center.y +5);
}

Answer 1

You are missing a couple curly braces.

- (void)viewDidLoad
{
    moveObjectTimer = [NSTimer timerWithTimeInterval:0.1 target:self selector:@selector(moveObject) userInfo:nil repeats:YES]
}

-(void)moveObject 
{
    image.center = CGPointMake(image.center.x, image.center.y +5);
}