Novice to ask, how to make the following code delay of 10 seconds before performing?

- (Void) viewWillAppear: (BOOL) animated
{
CGPoint newPos = simpleLayer_.position;
newPos.y + = 1;.
simpleLayer_.position = newPos;
[SimpleLayer_ setNeedsDisplay];

}
Reply:

 
- (Void) viewWillAppear: (BOOL) animated 
{
[Self performSelector: @ selector (initContentView) withObject: nil afterDelay: 10]; 


} 


- (Void) initContentView 
{
CGPoint newPos = simpleLayer_.position; 
newPos.y + = 1;. 
simpleLayer_.position = newPos; 
[SimpleLayer_ setNeedsDisplay]; 
}