#BSUIViewRearranger by @_karsten_

##About The problem is simple: you create an app in portrait mode, think about the landscape UI and figure that all you want is the same controls, but just a different layout.

BSUIViewRearranger is a simple class that helps with exactly that. You create two nibs, one for portrait, one for landscape and then you let BSUIViewRearranger do all the figuring outs for you.

##Usage In your view controller you implement the method to make your app work in landscape mode:

- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation { return YES; }

and the rotation method is implemented like that:

- (void)willRotateToInterfaceOrientation:(UIInterfaceOrientation)toInterfaceOrientation duration:(NSTimeInterval)duration { [UIView animateWithDuration:duration animations:^(void) { [BSUIViewRearranger rearrangeView: self.view toMode: toInterfaceOrientation usingLandscapeNib: @"MainViewLandscape" portraitNib: @"MainView" controllerClass: [self class]]; }]; }

That's all you need to do. You pass the view, the orientation and the nib names. You also need to pass the view controller class that can open the nibs.

##Constrains The algorithm to rearrange the views is no magic and doesn't have any heuristics about how to match the views. It only assumes one thing: both nibs create a view that has the exact same structure. Easiest thing to do is save your nib in portrait mode and then save it under a new name, rotate it and rearrange your controls. Do not nest views in one nib but not in the other!

Karsten