旋转时状态栏正在消失

I'm pretty new to iOS, i've done all of Apples tutorial but something is bothering me a lot and I can't seem to find the right key words to solve this problem else I wouldn't ask such a simple question. Everyone else seems to want to hide the status bar but I want mine to remain persistent through all rotates.I'm pretty new to iOS, i've done all of Apples