UITabBarController+RBExtras.m

//
// UITabBarController+RBExtras.m
//
// Copyright (c) 2011 Robert Brown
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
//

#import "UITabBarController+RBExtras.h"

@implementation UITabBarController (RBExtras)

+ (UITabBarController *)tabBarControllerWithStoryboardTabs:(NSArray *)tabs {
    
    UITabBarController * tabBarController = [UITabBarController new];
    NSMutableArray * instantiatedTabs = [NSMutableArray arrayWithCapacity:[tabs count]];
    
    // Instantiates each of the storyboards.
    [tabs enumerateObjectsUsingBlock:^(id obj, NSUInteger idx, BOOL * stop) {
        
        NSAssert([obj isKindOfClass:[UIStoryboard class]], 
                 @"Expected UIStoryboard, got %@", 
                 NSStringFromClass([obj class]));
        
        [instantiatedTabs addObject:[obj instantiateInitialViewController]];
    }];
    
    [tabBarController setViewControllers:instantiatedTabs];
    
    return tabBarController;
}

@end