Closes #3725

lib/ios/RNNControllerFactory.m

 
 
 - (UIViewController<RNNRootViewProtocol> *)createStack:(RNNLayoutNode*)node {
-	RNNNavigationController* vc = [[RNNNavigationController alloc] init];
-	[vc setComponentId:node.nodeId];
 	RNNNavigationOptions* options = [self createOptions:node.data[@"options"]];
+	RNNNavigationController* vc = [[RNNNavigationController alloc] initWithOptions:options];
+	[vc setComponentId:node.nodeId];
 	NSMutableArray* controllers = [NSMutableArray new];
 	for (NSDictionary* child in node.children) {
 		[controllers addObject:[self fromTree:child]];
 	NSMutableArray* controllers = [NSMutableArray new];
 	for (NSDictionary *child in node.children) {
 		UIViewController<RNNRootViewProtocol>* childVc = [self fromTree:child];
-		RNNRootViewController* rootView = (RNNRootViewController *)[childVc getLeafViewController];
-		[rootView applyTabBarItem];
+		[childVc applyTabBarItem];
 		
 		[controllers addObject:childVc];
 	}

lib/ios/RNNNavigationController.h

 
 @interface RNNNavigationController : UINavigationController <RNNRootViewProtocol>
 
+- (instancetype)initWithOptions:(RNNNavigationOptions *)options;
+
 @property (nonatomic, strong) NSString* componentId;
+@property (nonatomic, strong) RNNNavigationOptions* options;
 
 @end

lib/ios/RNNNavigationController.m

 
 @implementation RNNNavigationController
 
+- (instancetype)initWithOptions:(RNNNavigationOptions *)options {
+	self = [super init];
+	if (self) {
+		_options = options;
+	}
+	
+	return self;
+}
+
 - (UIInterfaceOrientationMask)supportedInterfaceOrientations {
 	return self.viewControllers.lastObject.supportedInterfaceOrientations;
 }
 	return self.topViewController;
 }
 
+- (void)applyTabBarItem {
+	[self.options.bottomTab mergeOptions:((RNNNavigationOptions *)self.options.defaultOptions).bottomTab overrideOptions:NO];
+	[self.options.bottomTab applyOn:self];
+	[self.getLeafViewController.options.bottomTab mergeOptions:((RNNNavigationOptions *)self.getLeafViewController.options.defaultOptions).bottomTab overrideOptions:NO];
+	[self.getLeafViewController.options.bottomTab applyOn:self];
+}
+
 @end

lib/ios/RNNRootViewController.h

 			   eventEmitter:(RNNEventEmitter*)eventEmitter
 		  isExternalComponent:(BOOL)isExternalComponent;
 
-- (void)applyTabBarItem;
 - (void)applyTopTabsOptions;
 - (BOOL)isCustomViewController;
 - (BOOL)isCustomTransitioned;

lib/ios/RNNRootViewProtocol.h

 @optional
 
 - (void)performOnRotation:(void (^)(void))block;
+- (void)applyTabBarItem;
 
 @required
 - (RNNRootViewController *)getLeafViewController;