How to add a nav bar at the bottom of a view programmatically?

I have a view with a nav bar on top (I downloade开发者_运维技巧d this app and its a nav controller app) but how to add a nav bar on bottom?

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UINavigationBar *bottomBar=[[UINavigationBar alloc]initWithFrame:CGRectMake(0, 436, 320, 44)];

[self.view setFrame:CGRectMake(0, 0, 320, 460-44)];

[self.view addSubview:bottomBar];

I am pretty sure that the UINavigationController actually supports this out of the box. It's called a UIToolbar, I believe and if you look in the documentation, you'll be able to find more on that.

You can able to use the UItoolbar instead of navigation bar

     UIToolbar *toolbar = [[UIToolbar alloc] initWith:CGRectMake(0, 436, 320, 44)];

    [myview addSubview:toobar];