Upvote:1

Aprove answer
-(void)viewDidAppear 
{
    thebtn.center = CGPointMake(480, 150);
    thebtn.opacity = 0.4f;
    [self setNeedsLayout];
}

Upvote:1

- (void)viewDidLoad
{
   thebtn.center = CGPointMake(x, y);
   thebtn.alpha = 0.4f;
}

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