Hack react-native-navigation

RCCNavigationController.m

#import "RCCNavigationController.h"
#import "RCCViewController.h"
#import "RCCManager.h"
#import <React/RCTEventDispatcher.h>
#import <React/RCTConvert.h>
#import <React/RCTRootView.h>
#import <objc/runtime.h>
#import "RCCTitleViewHelper.h"
#import "RCCCustomBarButtonItem.h"
#import "UIViewController+Rotation.h"
#import "RCTHelpers.h"

@implementation RCCNavigationController
{
  BOOL _transitioning;
  NSMutableArray *_queuedViewControllers;
}

NSString const *CALLBACK_ASSOCIATED_KEY = @"RCCNavigationController.CALLBACK_ASSOCIATED_KEY";
NSString const *CALLBACK_ASSOCIATED_ID = @"RCCNavigationController.CALLBACK_ASSOCIATED_ID";


-(UIInterfaceOrientationMask)supportedInterfaceOrientations {
  return [self supportedControllerOrientations];
}

- (instancetype)initWithProps:(NSDictionary *)props children:(NSArray *)children globalProps:(NSDictionary*)globalProps bridge:(RCTBridge *)bridge
{
  _queuedViewControllers = [NSMutableArray new];
  
  NSString *component = props[@"component"];
  if (!component) return nil;
  
  NSDictionary *passProps = props[@"passProps"];
  NSDictionary *navigatorStyle = props[@"style"];
  
  RCCViewController *viewController = [[RCCViewController alloc] initWithComponent:component passProps:passProps navigatorStyle:navigatorStyle globalProps:globalProps bridge:bridge];
  if (!viewController) return nil;
  viewController.controllerId = props[@"id"];
  
  NSArray *leftButtons = props[@"leftButtons"];
  if (leftButtons)
  {
    [self setButtons:leftButtons viewController:viewController side:@"left" animated:NO];
  }
  
  NSArray *rightButtons = props[@"rightButtons"];
  if (rightButtons)
  {
    [self setButtons:rightButtons viewController:viewController side:@"right" animated:NO];
  }
  
  self = [super initWithRootViewController:viewController];
  if (!self) return nil;
  self.delegate = self;
  
  self.navigationBar.translucent = NO; // default
  
  [self processTitleView:viewController
                   props:props
                   style:navigatorStyle];
  

  [self setRotation:props];
    
    [viewController.navigationController setNavigationBarHidden:YES animated:NO];
  
  return self;
}


- (void)performAction:(NSString*)performAction actionParams:(NSDictionary*)actionParams bridge:(RCTBridge *)bridge
{
  BOOL animated = actionParams[@"animated"] ? [actionParams[@"animated"] boolValue] : YES;
  
  // push
  if ([performAction isEqualToString:@"push"])
  {
    NSString *component = actionParams[@"component"];
    if (!component) return;
    
    NSMutableDictionary *passProps = [actionParams[@"passProps"] mutableCopy];
    passProps[GLOBAL_SCREEN_ACTION_COMMAND_TYPE] = COMMAND_TYPE_PUSH;
    passProps[GLOBAL_SCREEN_ACTION_TIMESTAMP] = actionParams[GLOBAL_SCREEN_ACTION_TIMESTAMP];
    NSDictionary *navigatorStyle = actionParams[@"style"];
    
    NSNumber *keepStyleAcrossPush = [[RCCManager sharedInstance] getAppStyle][@"keepStyleAcrossPush"];
    BOOL keepStyleAcrossPushBool = keepStyleAcrossPush ? [keepStyleAcrossPush boolValue] : YES;
    
    if (keepStyleAcrossPushBool) {
      
      if ([self.topViewController isKindOfClass:[RCCViewController class]])
      {
        RCCViewController *parent = (RCCViewController*)self.topViewController;
        NSMutableDictionary *mergedStyle = [NSMutableDictionary dictionaryWithDictionary:parent.navigatorStyle];
        
        // there are a few styles that we don't want to remember from our parent (they should be local)
        [mergedStyle removeObjectForKey:@"navBarHidden"];
        [mergedStyle removeObjectForKey:@"statusBarHidden"];
        [mergedStyle removeObjectForKey:@"navBarHideOnScroll"];
        [mergedStyle removeObjectForKey:@"drawUnderNavBar"];
        [mergedStyle removeObjectForKey:@"drawUnderTabBar"];
        [mergedStyle removeObjectForKey:@"statusBarBlur"];
        [mergedStyle removeObjectForKey:@"navBarBlur"];
        [mergedStyle removeObjectForKey:@"navBarTranslucent"];
        [mergedStyle removeObjectForKey:@"statusBarHideWithNavBar"];
        [mergedStyle removeObjectForKey:@"autoAdjustScrollViewInsets"];
        [mergedStyle removeObjectForKey:@"statusBarTextColorSchemeSingleScreen"];
        [mergedStyle removeObjectForKey:@"disabledBackGesture"];
        [mergedStyle removeObjectForKey:@"disabledSimultaneousGesture"];
        [mergedStyle removeObjectForKey:@"navBarCustomView"];
        [mergedStyle removeObjectForKey:@"navBarComponentAlignment"];
        
        [mergedStyle addEntriesFromDictionary:navigatorStyle];
        navigatorStyle = mergedStyle;
      }
    }
    
    RCCViewController *viewController = [[RCCViewController alloc] initWithComponent:component passProps:passProps navigatorStyle:navigatorStyle globalProps:nil bridge:bridge];
    viewController.controllerId = passProps[@"screenInstanceID"];
    
    [self processTitleView:viewController
                     props:actionParams
                     style:navigatorStyle];
    
    NSString *backButtonTitle = actionParams[@"backButtonTitle"];
    if (!backButtonTitle) {
      NSNumber *hideBackButtonTitle = [[RCCManager sharedInstance] getAppStyle][@"hideBackButtonTitle"];
      BOOL hideBackButtonTitleBool = hideBackButtonTitle ? [hideBackButtonTitle boolValue] : NO;
      backButtonTitle = hideBackButtonTitleBool ? @"" : backButtonTitle;
    }
    
    if (backButtonTitle)
    {
      UIBarButtonItem *backItem = [[UIBarButtonItem alloc] initWithTitle:backButtonTitle
                                                                   style:UIBarButtonItemStylePlain
                                                                  target:nil
                                                                  action:nil];
      
      self.topViewController.navigationItem.backBarButtonItem = backItem;
    }
    else
    {
      self.topViewController.navigationItem.backBarButtonItem = nil;
    }
    
    NSNumber *backButtonHidden = actionParams[@"backButtonHidden"];
    BOOL backButtonHiddenBool = backButtonHidden ? [backButtonHidden boolValue] : NO;
    if (backButtonHiddenBool)
    {
      viewController.navigationItem.hidesBackButton = YES;
    }
    
    NSArray *leftButtons = actionParams[@"leftButtons"];
    if (leftButtons)
    {
      [self setButtons:leftButtons viewController:viewController side:@"left" animated:NO];
    }
    
    NSArray *rightButtons = actionParams[@"rightButtons"];
    if (rightButtons)
    {
      [self setButtons:rightButtons viewController:viewController side:@"right" animated:NO];
    }
    
    NSString *animationType = actionParams[@"animationType"];
    if ([animationType isEqualToString:@"fade"])
    {
      CATransition *transition = [CATransition animation];
      transition.duration = 0.25;
      transition.type = kCATransitionFade;
      
      [self.view.layer addAnimation:transition forKey:kCATransition];
      [self pushViewController:viewController animated:NO];
    }
    else
    {
      [self pushViewController:viewController animated:animated];
    }
    return;
  }
  
  // pop
  if ([performAction isEqualToString:@"pop"])
  {
    NSString *animationType = actionParams[@"animationType"];
    if ([animationType isEqualToString:@"fade"])
    {
      CATransition *transition = [CATransition animation];
      transition.duration = 0.25;
      transition.type = kCATransitionFade;
      
      [self.view.layer addAnimation:transition forKey:kCATransition];
      [self popViewControllerAnimated:NO];
    }
    else
    {
      [self popViewControllerAnimated:animated];
    }
    return;
  }
  
  // popToRoot
  if ([performAction isEqualToString:@"popToRoot"])
  {
    NSString *animationType = actionParams[@"animationType"];
    if ([animationType isEqualToString:@"fade"])
    {
      CATransition *transition = [CATransition animation];
      transition.duration = 0.25;
      transition.type = kCATransitionFade;
      
      [self.view.layer addAnimation:transition forKey:kCATransition];
      [self popToRootViewControllerAnimated:NO];
    }
    else
    {
      [self popToRootViewControllerAnimated:animated];
    }
    return;
  }
  
  // resetTo
  if ([performAction isEqualToString:@"resetTo"])
  {
    NSString *component = actionParams[@"component"];
    if (!component) return;
    
    NSMutableDictionary *passProps = [actionParams[@"passProps"] mutableCopy];
    passProps[@"commantType"] = @"resetTo";
    NSDictionary *navigatorStyle = actionParams[@"style"];
    
    RCCViewController *viewController = [[RCCViewController alloc] initWithComponent:component passProps:passProps navigatorStyle:navigatorStyle globalProps:nil bridge:bridge];
    viewController.controllerId = passProps[@"screenInstanceID"];
    
    viewController.navigationItem.hidesBackButton = YES;
    
    [self processTitleView:viewController
                     props:actionParams
                     style:navigatorStyle];
    NSArray *leftButtons = actionParams[@"leftButtons"];
    if (leftButtons)
    {
      [self setButtons:leftButtons viewController:viewController side:@"left" animated:NO];
    }
    
    NSArray *rightButtons = actionParams[@"rightButtons"];
    if (rightButtons)
    {
      [self setButtons:rightButtons viewController:viewController side:@"right" animated:NO];
    }
    
    BOOL animated = actionParams[@"animated"] ? [actionParams[@"animated"] boolValue] : YES;
    
    NSString *animationType = actionParams[@"animationType"];
    if ([animationType isEqualToString:@"fade"])
    {
      CATransition *transition = [CATransition animation];
      transition.duration = 0.25;
      transition.type = kCATransitionFade;
      
      [self.view.layer addAnimation:transition forKey:kCATransition];
      [self setViewControllers:@[viewController] animated:NO];
    }
    else
    {
      [self setViewControllers:@[viewController] animated:animated];
    }
    return;
  }
  
  // setButtons
  if ([performAction isEqualToString:@"setButtons"])
  {
    NSArray *buttons = actionParams[@"buttons"];
    BOOL animated = actionParams[@"animated"] ? [actionParams[@"animated"] boolValue] : YES;
    NSString *side = actionParams[@"side"] ? actionParams[@"side"] : @"left";
    
    [self setButtons:buttons viewController:self.topViewController side:side animated:animated];
    return;
  }
  
  // setTitle
  if ([performAction isEqualToString:@"setTitle"] || [performAction isEqualToString:@"setTitleImage"])
  {
    NSDictionary *navigatorStyle = actionParams[@"style"];
    [self processTitleView:self.topViewController
                     props:actionParams
                     style:navigatorStyle];
    return;
  }
  
  // toggleNavBar
  if ([performAction isEqualToString:@"setHidden"]) {
    NSNumber *animated = actionParams[@"animated"];
    BOOL animatedBool = animated ? [animated boolValue] : YES;
    
    NSNumber *setHidden = actionParams[@"hidden"];
    BOOL isHiddenBool = setHidden ? [setHidden boolValue] : NO;
    
    RCCViewController *topViewController = ((RCCViewController*)self.topViewController);
    topViewController.navigatorStyle[@"navBarHidden"] = setHidden;
    [topViewController setNavBarVisibilityChange:animatedBool];
    
  }
  
  // setStyle
  if ([performAction isEqualToString:@"setStyle"])
  {
    
    NSDictionary *navigatorStyle = actionParams;
    
    // merge the navigatorStyle of our parent
    if ([self.topViewController isKindOfClass:[RCCViewController class]])
    {
      RCCViewController *parent = (RCCViewController*)self.topViewController;
      NSMutableDictionary *mergedStyle = [NSMutableDictionary dictionaryWithDictionary:parent.navigatorStyle];
      
      // there are a few styles that we don't want to remember from our parent (they should be local)
      [mergedStyle setValuesForKeysWithDictionary:navigatorStyle];
      navigatorStyle = mergedStyle;
      
      parent.navigatorStyle = navigatorStyle;
      
      [parent setStyleOnInit];
      [parent updateStyle];
    }
  }
}

-(void)onButtonPress:(UIBarButtonItem*)barButtonItem
{
  NSString *callbackId = objc_getAssociatedObject(barButtonItem, &CALLBACK_ASSOCIATED_KEY);
  if (!callbackId) return;
  NSString *buttonId = objc_getAssociatedObject(barButtonItem, &CALLBACK_ASSOCIATED_ID);
  [[[RCCManager sharedInstance] getBridge].eventDispatcher sendAppEventWithName:callbackId body:@
   {
     @"type": @"NavBarButtonPress",
     @"id": buttonId ? buttonId : [NSNull null]
   }];
}

-(void)setButtons:(NSArray*)buttons viewController:(UIViewController*)viewController side:(NSString*)side animated:(BOOL)animated
{
  NSMutableArray *barButtonItems = [NSMutableArray new];
  for (NSDictionary *button in buttons)
  {
    NSString *title = button[@"title"];
    UIImage *iconImage = nil;
    id icon = button[@"icon"];
    if (icon) iconImage = [RCTConvert UIImage:icon];
    NSString *__nullable component = button[@"component"];

    UIBarButtonItem *barButtonItem;
    if (iconImage)
    {
      barButtonItem = [[UIBarButtonItem alloc] initWithImage:iconImage style:UIBarButtonItemStylePlain target:self action:@selector(onButtonPress:)];
    }
    else if (title)
    {
      barButtonItem = [[UIBarButtonItem alloc] initWithTitle:title style:UIBarButtonItemStylePlain target:self action:@selector(onButtonPress:)];

      NSMutableDictionary *buttonTextAttributes = [RCTHelpers textAttributesFromDictionary:button withPrefix:@"button"];
      if (buttonTextAttributes.allKeys.count > 0) {
        [barButtonItem setTitleTextAttributes:buttonTextAttributes forState:UIControlStateNormal];
      }
    }
    else if (component) {
      RCTBridge *bridge = [[RCCManager sharedInstance] getBridge];
      barButtonItem = [[RCCCustomBarButtonItem alloc] initWithComponentName:component passProps:button[@"passProps"] bridge:bridge];
    }
    else continue;
    objc_setAssociatedObject(barButtonItem, &CALLBACK_ASSOCIATED_KEY, button[@"onPress"], OBJC_ASSOCIATION_RETAIN_NONATOMIC);
    [barButtonItems addObject:barButtonItem];
    
    NSString *buttonId = button[@"id"];
    if (buttonId)
    {
      objc_setAssociatedObject(barButtonItem, &CALLBACK_ASSOCIATED_ID, buttonId, OBJC_ASSOCIATION_RETAIN_NONATOMIC);
    }
    
    NSNumber *disabled = button[@"disabled"];
    BOOL disabledBool = disabled ? [disabled boolValue] : NO;
    if (disabledBool) {
      [barButtonItem setEnabled:NO];
    }
    
    NSNumber *disableIconTintString = button[@"disableIconTint"];
    BOOL disableIconTint = disableIconTintString ? [disableIconTintString boolValue] : NO;
    if (disableIconTint) {
      [barButtonItem setImage:[barButtonItem.image imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal]];
    }
    
    if ([viewController isKindOfClass:[RCCViewController class]]) {
      RCCViewController *rccViewController = ((RCCViewController*)viewController);
      NSDictionary *navigatorStyle = rccViewController.navigatorStyle;
      id disabledButtonColor = navigatorStyle[@"disabledButtonColor"];
      if (disabledButtonColor) {
        UIColor *color = [RCTConvert UIColor:disabledButtonColor];
        [barButtonItem setTitleTextAttributes:@{NSForegroundColorAttributeName : color} forState:UIControlStateDisabled];
      }
    }
    
    NSString *testID = button[@"testID"];
    if (testID)
    {
      barButtonItem.accessibilityIdentifier = testID;
    }
  }
  
  if ([side isEqualToString:@"left"])
  {
    [viewController.navigationItem setLeftBarButtonItems:barButtonItems animated:animated];
  }
  
  if ([side isEqualToString:@"right"])
  {
    [viewController.navigationItem setRightBarButtonItems:barButtonItems animated:animated];
  }
}


-(void)processTitleView:(UIViewController*)viewController
                  props:(NSDictionary*)props
                  style:(NSDictionary*)style
{
  BOOL isSetSubtitleBool = props[@"isSetSubtitle"] ? [props[@"isSetSubtitle"] boolValue] : NO;
  RCCTitleViewHelper *titleViewHelper = [[RCCTitleViewHelper alloc] init:viewController
                                                    navigationController:self
                                                                   title:props[@"title"]
                                                                subtitle:props[@"subtitle"]
                                                          titleImageData:props[@"titleImage"]
                                                           isSetSubtitle:isSetSubtitleBool];
  
  [titleViewHelper setup:style];
  
}

- (UIStatusBarStyle)preferredStatusBarStyle {
  return [self.topViewController preferredStatusBarStyle];
}

- (void)pushViewController:(UIViewController *)viewController animated:(BOOL)animated
{
  if(_transitioning)
  {
    NSDictionary *pushDetails =@{ @"viewController": viewController, @"animated": @(animated) };
    [_queuedViewControllers addObject:pushDetails];
    
    return;
  }
  
  _transitioning = YES;
  
  [super pushViewController:viewController animated:animated];
}


#pragma mark - UINavigationControllerDelegate


-(void)navigationController:(UINavigationController *)navigationController willShowViewController:(UIViewController *)viewController animated:(BOOL)animated {
  [viewController setNeedsStatusBarAppearanceUpdate];
}

- (void)navigationController:(UINavigationController *)navigationController didShowViewController:(UIViewController *)viewController animated:(BOOL)animated
{
  dispatch_async(dispatch_get_main_queue(), ^{
    _transitioning = NO;
    if ([_queuedViewControllers count] > 0) {
      NSDictionary *toPushDetails = [_queuedViewControllers firstObject];
      [_queuedViewControllers removeObjectAtIndex:0];
      [self pushViewController:toPushDetails[@"viewController"] animated:[toPushDetails[@"animated"] boolValue]];
    }
  });
}


@end

RCCTabBarController.m

#import "RCCTabBarController.h"
#import "RCCViewController.h"
#import <React/RCTConvert.h>
#import "RCCManager.h"
#import "RCTHelpers.h"
#import <React/RCTUIManager.h>
#import "UIViewController+Rotation.h"

@interface RCTUIManager ()

- (void)configureNextLayoutAnimation:(NSDictionary *)config
                        withCallback:(RCTResponseSenderBlock)callback
                       errorCallback:(__unused RCTResponseSenderBlock)errorCallback;

@end

@implementation RCCTabBarController


-(UIInterfaceOrientationMask)supportedInterfaceOrientations {
  return [self supportedControllerOrientations];
}

- (BOOL)tabBarController:(UITabBarController *)tabBarController shouldSelectViewController:(UIViewController *)viewController {
  id queue = [[RCCManager sharedInstance].getBridge uiManager].methodQueue;
  dispatch_async(queue, ^{
    [[[RCCManager sharedInstance].getBridge uiManager] configureNextLayoutAnimation:nil withCallback:^(NSArray* arr){} errorCallback:^(NSArray* arr){}];
  });
  
  if (tabBarController.selectedIndex != [tabBarController.viewControllers indexOfObject:viewController]) {
    NSDictionary *body = @{
                           @"selectedTabIndex": @([tabBarController.viewControllers indexOfObject:viewController]),
                           @"unselectedTabIndex": @(tabBarController.selectedIndex)
                           };
    [RCCTabBarController sendScreenTabChangedEvent:viewController body:body];
    
    [[[RCCManager sharedInstance] getBridge].eventDispatcher sendAppEventWithName:@"bottomTabSelected" body:body];
    if ([viewController isKindOfClass:[UINavigationController class]]) {
      UINavigationController *navigationController = (UINavigationController*)viewController;
      UIViewController *topViewController = navigationController.topViewController;
      
      if ([topViewController isKindOfClass:[RCCViewController class]]) {
        RCCViewController *topRCCViewController = (RCCViewController*)topViewController;
        topRCCViewController.commandType = COMMAND_TYPE_BOTTOME_TAB_SELECTED;
        topRCCViewController.timestamp = [RCTHelpers getTimestampString];
      }
    }
    
  } else {
    [RCCTabBarController sendScreenTabPressedEvent:viewController body:nil];
  }
  
  
  
  return YES;
}

- (UIImage *)image:(UIImage*)image withColor:(UIColor *)color1
{
  UIGraphicsBeginImageContextWithOptions(image.size, NO, image.scale);
  CGContextRef context = UIGraphicsGetCurrentContext();
  CGContextTranslateCTM(context, 0, image.size.height);
  CGContextScaleCTM(context, 1.0, -1.0);
  CGContextSetBlendMode(context, kCGBlendModeNormal);
  CGRect rect = CGRectMake(0, 0, image.size.width, image.size.height);
  CGContextClipToMask(context, rect, image.CGImage);
  [color1 setFill];
  CGContextFillRect(context, rect);
  UIImage *newImage = UIGraphicsGetImageFromCurrentImageContext();
  UIGraphicsEndImageContext();
  return newImage;
}

- (instancetype)initWithProps:(NSDictionary *)props children:(NSArray *)children globalProps:(NSDictionary*)globalProps bridge:(RCTBridge *)bridge
{
  self = [super init];
  if (!self) return nil;
  
  self.delegate = self;
  
  self.tabBar.translucent = YES; // default
  
  UIColor *buttonColor = nil;
  UIColor *selectedButtonColor = nil;
  UIColor *labelColor = nil;
  UIColor *selectedLabelColor = nil;
  NSDictionary *tabsStyle = props[@"style"];
  if (tabsStyle)
  {
    NSString *tabBarButtonColor = tabsStyle[@"tabBarButtonColor"];
    if (tabBarButtonColor)
    {
      UIColor *color = tabBarButtonColor != (id)[NSNull null] ? [RCTConvert UIColor:tabBarButtonColor] : nil;
      self.tabBar.tintColor = color;
      buttonColor = color;
      selectedButtonColor = color;
    }
    NSString *tabBarSelectedButtonColor = tabsStyle[@"tabBarSelectedButtonColor"];
    if (tabBarSelectedButtonColor)
    {
      UIColor *color = tabBarSelectedButtonColor != (id)[NSNull null] ? [RCTConvert UIColor:tabBarSelectedButtonColor] : nil;
      self.tabBar.tintColor = color;
      selectedButtonColor = color;
    }
    NSString *tabBarLabelColor = tabsStyle[@"tabBarLabelColor"];
    if(tabBarLabelColor) {
      UIColor *color = tabBarLabelColor != (id)[NSNull null] ? [RCTConvert UIColor:tabBarLabelColor] : nil;
      labelColor = color;
    }
    NSString *tabBarSelectedLabelColor = tabsStyle[@"tabBarSelectedLabelColor"];
    if(tabBarLabelColor) {
      UIColor *color = tabBarSelectedLabelColor != (id)[NSNull null] ? [RCTConvert UIColor:
                                                                        tabBarSelectedLabelColor] : nil;
      selectedLabelColor = color;
    }
    NSString *tabBarBackgroundColor = tabsStyle[@"tabBarBackgroundColor"];
    if (tabBarBackgroundColor)
    {
      UIColor *color = tabBarBackgroundColor != (id)[NSNull null] ? [RCTConvert UIColor:tabBarBackgroundColor] : nil;
      self.tabBar.barTintColor = color;
    }

    NSString *tabBarTranslucent = tabsStyle[@"tabBarTranslucent"];
    if (tabBarTranslucent)
    {
      self.tabBar.translucent = [tabBarTranslucent boolValue] ? YES : NO;
    }

    NSString *tabBarHideShadow = tabsStyle[@"tabBarHideShadow"];
    if (tabBarHideShadow)
    {
      self.tabBar.clipsToBounds = [tabBarHideShadow boolValue] ? YES : NO;
    }
  }
  
  NSMutableArray *viewControllers = [NSMutableArray array];
  
  // go over all the tab bar items
  for (NSDictionary *tabItemLayout in children)
  {
    // make sure the layout is valid
    if (![tabItemLayout[@"type"] isEqualToString:@"TabBarControllerIOS.Item"]) continue;
    if (!tabItemLayout[@"props"]) continue;
    
    // get the view controller inside
    if (!tabItemLayout[@"children"]) continue;
    if (![tabItemLayout[@"children"] isKindOfClass:[NSArray class]]) continue;
    if ([tabItemLayout[@"children"] count] < 1) continue;
    NSDictionary *childLayout = tabItemLayout[@"children"][0];
    UIViewController *viewController = [RCCViewController controllerWithLayout:childLayout globalProps:globalProps bridge:bridge];
    if (!viewController) continue;
    
    // create the tab icon and title
    NSString *title = tabItemLayout[@"props"][@"title"];
    UIImage *iconImage = nil;
    id icon = tabItemLayout[@"props"][@"icon"];
    if (icon)
    {
      iconImage = [RCTConvert UIImage:icon];
      if (buttonColor)
      {
        iconImage = [[self image:iconImage withColor:buttonColor] imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal];
      }
    }
    UIImage *iconImageSelected = nil;
    id selectedIcon = tabItemLayout[@"props"][@"selectedIcon"];
    if (selectedIcon) {
      iconImageSelected = [RCTConvert UIImage:selectedIcon];
    } else {
      iconImageSelected = [RCTConvert UIImage:icon];
    }
    
    viewController.tabBarItem = [[UITabBarItem alloc] initWithTitle:title image:iconImage tag:0];
    viewController.tabBarItem.accessibilityIdentifier = tabItemLayout[@"props"][@"testID"];
    viewController.tabBarItem.selectedImage = iconImageSelected;
    
    id imageInsets = tabItemLayout[@"props"][@"iconInsets"];
    if (imageInsets && imageInsets != (id)[NSNull null])
    {
      id topInset = imageInsets[@"top"];
      id leftInset = imageInsets[@"left"];
      id bottomInset = imageInsets[@"bottom"];
      id rightInset = imageInsets[@"right"];
      
      CGFloat top = topInset != (id)[NSNull null] ? [RCTConvert CGFloat:topInset] : 0;
      CGFloat left = topInset != (id)[NSNull null] ? [RCTConvert CGFloat:leftInset] : 0;
      CGFloat bottom = topInset != (id)[NSNull null] ? [RCTConvert CGFloat:bottomInset] : 0;
      CGFloat right = topInset != (id)[NSNull null] ? [RCTConvert CGFloat:rightInset] : 0;
      
      viewController.tabBarItem.imageInsets = UIEdgeInsetsMake(top, left, bottom, right);
    }
    NSMutableDictionary *unselectedAttributes = [RCTHelpers textAttributesFromDictionary:tabsStyle withPrefix:@"tabBarText" baseFont:[UIFont systemFontOfSize:10]];
    if (!unselectedAttributes[NSForegroundColorAttributeName] && labelColor) {
      unselectedAttributes[NSForegroundColorAttributeName] = labelColor;
    }
    
    [viewController.tabBarItem setTitleTextAttributes:unselectedAttributes forState:UIControlStateNormal];
    
    NSMutableDictionary *selectedAttributes = [RCTHelpers textAttributesFromDictionary:tabsStyle withPrefix:@"tabBarSelectedText" baseFont:[UIFont systemFontOfSize:10]];
    if (!selectedAttributes[NSForegroundColorAttributeName] && selectedLabelColor) {
      selectedAttributes[NSForegroundColorAttributeName] = selectedLabelColor;
    }
    
    [viewController.tabBarItem setTitleTextAttributes:selectedAttributes forState:UIControlStateSelected];
    // create badge
    NSObject *badge = tabItemLayout[@"props"][@"badge"];
    if (badge == nil || [badge isEqual:[NSNull null]])
    {
      viewController.tabBarItem.badgeValue = nil;
    }
    else
    {
      viewController.tabBarItem.badgeValue = [NSString stringWithFormat:@"%@", badge];
    }
    
    [viewControllers addObject:viewController];
  }
  
  // replace the tabs
  self.viewControllers = viewControllers;

  NSNumber *initialTab = tabsStyle[@"initialTabIndex"];
  if (initialTab)
  {
    NSInteger initialTabIndex = initialTab.integerValue;
    [self setSelectedIndex:initialTabIndex];
  }
  
  [self setRotation:props];
    
  
  return self;
}
-(void)viewDidLayoutSubviews {
    [super viewDidLayoutSubviews];
    self.tabBar.hidden = YES;
}

- (void)performAction:(NSString*)performAction actionParams:(NSDictionary*)actionParams bridge:(RCTBridge *)bridge completion:(void (^)(void))completion
{
  if ([performAction isEqualToString:@"setBadge"])
  {
    UIViewController *viewController = nil;
    NSNumber *tabIndex = actionParams[@"tabIndex"];
    if (tabIndex)
    {
      int i = (int)[tabIndex integerValue];
      
      if ([self.viewControllers count] > i)
      {
        viewController = [self.viewControllers objectAtIndex:i];
      }
    }
    NSString *contentId = actionParams[@"contentId"];
    NSString *contentType = actionParams[@"contentType"];
    if (contentId && contentType)
    {
      viewController = [[RCCManager sharedInstance] getControllerWithId:contentId componentType:contentType];
    }
    
    if (viewController)
    {
      NSObject *badge = actionParams[@"badge"];
      
      if (badge == nil || [badge isEqual:[NSNull null]])
      {
        viewController.tabBarItem.badgeValue = nil;
      }
      else
      {
        NSString *badgeColor = actionParams[@"badgeColor"];
        UIColor *color = badgeColor != (id)[NSNull null] ? [RCTConvert UIColor:badgeColor] : nil;
        
        if ([viewController.tabBarItem respondsToSelector:@selector(badgeColor)]) {
          viewController.tabBarItem.badgeColor = color;
        }
        viewController.tabBarItem.badgeValue = [NSString stringWithFormat:@"%@", badge];
      }
    }
  }
  
  if ([performAction isEqualToString:@"switchTo"])
  {
    UIViewController *viewController = nil;
    NSNumber *tabIndex = actionParams[@"tabIndex"];
    if (tabIndex)
    {
      int i = (int)[tabIndex integerValue];
      
      if ([self.viewControllers count] > i)
      {
        viewController = [self.viewControllers objectAtIndex:i];
      }
    }
    NSString *contentId = actionParams[@"contentId"];
    NSString *contentType = actionParams[@"contentType"];
    if (contentId && contentType)
    {
      viewController = [[RCCManager sharedInstance] getControllerWithId:contentId componentType:contentType];
    }
    
    if (viewController)
    {
      [self setSelectedViewController:viewController];
    }
  }
  
  if ([performAction isEqualToString:@"setTabButton"])
  {
    UIViewController *viewController = nil;
    NSNumber *tabIndex = actionParams[@"tabIndex"];
    if (tabIndex)
    {
      int i = (int)[tabIndex integerValue];
      
      if ([self.viewControllers count] > i)
      {
        viewController = [self.viewControllers objectAtIndex:i];
      }
    }
    NSString *contentId = actionParams[@"contentId"];
    NSString *contentType = actionParams[@"contentType"];
    if (contentId && contentType)
    {
      viewController = [[RCCManager sharedInstance] getControllerWithId:contentId componentType:contentType];
    }
    
    if (viewController)
    {
      UIImage *iconImage = nil;
      id icon = actionParams[@"icon"];
      if (icon && icon != (id)[NSNull null])
      {
        iconImage = [RCTConvert UIImage:icon];
        iconImage = [[self image:iconImage withColor:self.tabBar.tintColor] imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal];
        viewController.tabBarItem.image = iconImage;
      
      }
      UIImage *iconImageSelected = nil;
      id selectedIcon = actionParams[@"selectedIcon"];
      if (selectedIcon && selectedIcon != (id)[NSNull null])
      {
        iconImageSelected = [RCTConvert UIImage:selectedIcon];
        viewController.tabBarItem.selectedImage = iconImageSelected;
      }
    }
  }
  
  if ([performAction isEqualToString:@"setTabBarHidden"])
  {
    BOOL hidden = [actionParams[@"hidden"] boolValue];
    
    CGRect nextFrame = self.tabBar.frame;
    nextFrame.origin.y = UIScreen.mainScreen.bounds.size.height - (hidden ? 0 : self.tabBar.frame.size.height);
    
    [UIView animateWithDuration: ([actionParams[@"animated"] boolValue] ? 0.45 : 0)
                          delay: 0
         usingSpringWithDamping: 0.75
          initialSpringVelocity: 0
                        options: (hidden ? UIViewAnimationOptionCurveEaseIn : UIViewAnimationOptionCurveEaseOut)
                     animations:^()
     {
         [self.tabBar setFrame:nextFrame];
     }
                     completion:^(BOOL finished)
     {
       if (completion != nil)
       {
         completion();
       }
     }];
    return;
  }
  else if (completion != nil)
  {
    completion();
  }
}

+(void)sendScreenTabChangedEvent:(UIViewController*)viewController body:(NSDictionary*)body{
  [RCCTabBarController sendTabEvent:@"bottomTabSelected" controller:viewController body:body];
}

+(void)sendScreenTabPressedEvent:(UIViewController*)viewController body:(NSDictionary*)body{
  [RCCTabBarController sendTabEvent:@"bottomTabReselected" controller:viewController body:body];
}

+(void)sendTabEvent:(NSString *)event controller:(UIViewController*)viewController body:(NSDictionary*)body{
  if ([viewController.view isKindOfClass:[RCTRootView class]]){
    RCTRootView *rootView = (RCTRootView *)viewController.view;
    
    if (rootView.appProperties && rootView.appProperties[@"navigatorEventID"]) {
      NSString *navigatorID = rootView.appProperties[@"navigatorID"];
      NSString *screenInstanceID = rootView.appProperties[@"screenInstanceID"];
      
      
      NSMutableDictionary *screenDict = [NSMutableDictionary dictionaryWithDictionary:@
                                         {
                                           @"id": event,
                                           @"navigatorID": navigatorID,
                                           @"screenInstanceID": screenInstanceID
                                         }];
      
      
      if (body) {
        [screenDict addEntriesFromDictionary:body];
      }
      
      [[[RCCManager sharedInstance] getBridge].eventDispatcher sendAppEventWithName:rootView.appProperties[@"navigatorEventID"] body:screenDict];
    }
  }
  
  if ([viewController isKindOfClass:[UINavigationController class]]) {
    UINavigationController *navigationController = (UINavigationController*)viewController;
    UIViewController *topViewController = [navigationController topViewController];
    [RCCTabBarController sendTabEvent:event controller:topViewController body:body];
  }
}



@end

RCCViewController.m

#import "RCCViewController.h"
#import "RCCNavigationController.h"
#import "RCCTabBarController.h"
#import "RCCDrawerController.h"
#import "RCCTheSideBarManagerViewController.h"
#import <React/RCTRootView.h>
#import "RCCManager.h"
#import <React/RCTConvert.h>
#import <React/RCTEventDispatcher.h>
#import "RCCExternalViewControllerProtocol.h"
#import "RCTHelpers.h"
#import "RCCTitleViewHelper.h"
#import "RCCCustomTitleView.h"


NSString* const RCCViewControllerCancelReactTouchesNotification = @"RCCViewControllerCancelReactTouchesNotification";

const NSInteger BLUR_STATUS_TAG = 78264801;
const NSInteger BLUR_NAVBAR_TAG = 78264802;
const NSInteger TRANSPARENT_NAVBAR_TAG = 78264803;

@interface RCCViewController() <UIGestureRecognizerDelegate>
@property (nonatomic) BOOL _hidesBottomBarWhenPushed;
@property (nonatomic) BOOL _statusBarHideWithNavBar;
@property (nonatomic) BOOL _statusBarHidden;
@property (nonatomic) BOOL _statusBarTextColorSchemeLight;
@property (nonatomic, strong) NSDictionary *originalNavBarImages;
@property (nonatomic, strong) UIImageView *navBarHairlineImageView;
@property (nonatomic, weak) id <UIGestureRecognizerDelegate> originalInteractivePopGestureDelegate;
@end

@implementation RCCViewController

-(UIImageView *)navBarHairlineImageView {
  if (!_navBarHairlineImageView) {
    _navBarHairlineImageView = [self findHairlineImageViewUnder:self.navigationController.navigationBar];
  }
  return _navBarHairlineImageView;
}

+ (UIViewController*)controllerWithLayout:(NSDictionary *)layout globalProps:(NSDictionary *)globalProps bridge:(RCTBridge *)bridge
{
  UIViewController* controller = nil;
  if (!layout) return nil;
  
  // get props
  if (!layout[@"props"]) return nil;
  if (![layout[@"props"] isKindOfClass:[NSDictionary class]]) return nil;
  NSDictionary *props = layout[@"props"];
  
  // get children
  if (!layout[@"children"]) return nil;
  if (![layout[@"children"] isKindOfClass:[NSArray class]]) return nil;
  NSArray *children = layout[@"children"];
  
  // create according to type
  NSString *type = layout[@"type"];
  if (!type) return nil;
  
  // regular view controller
  if ([type isEqualToString:@"ViewControllerIOS"])
  {
    controller = [[RCCViewController alloc] initWithProps:props children:children globalProps:globalProps bridge:bridge];
  }
  
  // navigation controller
  if ([type isEqualToString:@"NavigationControllerIOS"])
  {
    controller = [[RCCNavigationController alloc] initWithProps:props children:children globalProps:globalProps bridge:bridge];
  
  }
  
  // tab bar controller
  if ([type isEqualToString:@"TabBarControllerIOS"])
  {
    controller = [[RCCTabBarController alloc] initWithProps:props children:children globalProps:globalProps bridge:bridge];
  }
  
  // side menu controller
  if ([type isEqualToString:@"DrawerControllerIOS"])
  {
    NSString *drawerType = props[@"type"];
    
    if ([drawerType isEqualToString:@"TheSideBar"]) {
      
      controller = [[RCCTheSideBarManagerViewController alloc] initWithProps:props children:children globalProps:globalProps bridge:bridge];
    }
    else {
      controller = [[RCCDrawerController alloc] initWithProps:props children:children globalProps:globalProps bridge:bridge];
    }
  }
  
  // register the controller if we have an id
  NSString *componentId = props[@"id"];
  if (controller && componentId)
  {
    [[RCCManager sharedInstance] registerController:controller componentId:componentId componentType:type];
    
    if([controller isKindOfClass:[RCCViewController class]])
    {
      ((RCCViewController*)controller).controllerId = componentId;
    }
  }
  
  // set background image at root level
  NSString *rootBackgroundImageName = props[@"style"][@"rootBackgroundImageName"];
  if (rootBackgroundImageName) {
    UIImage *image = [UIImage imageNamed: rootBackgroundImageName];
    UIImageView *imageView = [[UIImageView alloc] initWithImage:image];
    [controller.view insertSubview:imageView atIndex:0];
  }
  
  return controller;
}

-(NSDictionary*)addCommandTypeAndTimestampIfExists:(NSDictionary*)globalProps passProps:(NSDictionary*)passProps {
  NSMutableDictionary *modifiedPassProps = [NSMutableDictionary dictionaryWithDictionary:passProps];
  
  NSString *commandType = globalProps[GLOBAL_SCREEN_ACTION_COMMAND_TYPE];
  if (commandType) {
    modifiedPassProps[GLOBAL_SCREEN_ACTION_COMMAND_TYPE] = commandType;
  }
  
  NSString *timestamp = globalProps[GLOBAL_SCREEN_ACTION_TIMESTAMP];
  if (timestamp) {
    modifiedPassProps[GLOBAL_SCREEN_ACTION_TIMESTAMP] = timestamp;
  }
  return modifiedPassProps;
}



- (instancetype)initWithProps:(NSDictionary *)props children:(NSArray *)children globalProps:(NSDictionary *)globalProps bridge:(RCTBridge *)bridge
{
  NSString *component = props[@"component"];
  if (!component) return nil;
  
  NSDictionary *passProps = props[@"passProps"];
  NSDictionary *navigatorStyle = props[@"style"];
  
  NSMutableDictionary *mergedProps = [NSMutableDictionary dictionaryWithDictionary:globalProps];
  [mergedProps addEntriesFromDictionary:passProps];
  
  RCTRootView *reactView = [[RCTRootView alloc] initWithBridge:bridge moduleName:component initialProperties:mergedProps];
  if (!reactView) return nil;
    
  
  self = [super init];
  if (!self) return nil;
  
  [self commonInit:reactView navigatorStyle:navigatorStyle props:props];
  
  self.navigationController.interactivePopGestureRecognizer.delegate = self;
    
      [self.navigationController setNavigationBarHidden:YES animated:NO];
    

  return self;
}

- (instancetype)initWithComponent:(NSString *)component passProps:(NSDictionary *)passProps navigatorStyle:(NSDictionary*)navigatorStyle globalProps:(NSDictionary *)globalProps bridge:(RCTBridge *)bridge
{
  NSMutableDictionary *mergedProps = [NSMutableDictionary dictionaryWithDictionary:globalProps];
  [mergedProps addEntriesFromDictionary:passProps];
  
  RCTRootView *reactView = [[RCTRootView alloc] initWithBridge:bridge moduleName:component initialProperties:mergedProps];
  if (!reactView) return nil;
    

  
  self = [super init];
  if (!self) return nil;
  
  NSDictionary *modifiedPassProps = [self addCommandTypeAndTimestampIfExists:globalProps passProps:passProps];

  [self commonInit:reactView navigatorStyle:navigatorStyle props:modifiedPassProps];
    
   [self.navigationController setNavigationBarHidden:YES animated:NO];

  return self;
}

- (void)commonInit:(RCTRootView*)reactView navigatorStyle:(NSDictionary*)navigatorStyle props:(NSDictionary*)props
{
  self.view = reactView;
  
  self.edgesForExtendedLayout = UIRectEdgeNone; // default
  self.automaticallyAdjustsScrollViewInsets = NO; // default
  
  self.navigatorStyle = [NSMutableDictionary dictionaryWithDictionary:[[RCCManager sharedInstance] getAppStyle]];
  [self.navigatorStyle addEntriesFromDictionary:navigatorStyle];

  
  [self setStyleOnInit];
  
  [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(onRNReload) name:RCTJavaScriptWillStartLoadingNotification object:nil];
  [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(onCancelReactTouches) name:RCCViewControllerCancelReactTouchesNotification object:nil];
  
  self.commandType = props[GLOBAL_SCREEN_ACTION_COMMAND_TYPE];
  self.timestamp = props[GLOBAL_SCREEN_ACTION_TIMESTAMP];
  
  
  // In order to support 3rd party native ViewControllers, we support passing a class name as a prop named `ExternalNativeScreenClass`
  // In this case, we create an instance and add it as a child ViewController which preserves the VC lifecycle.
  // In case some props are necessary in the native ViewController, the ExternalNativeScreenProps can be used to pass them
  [self addExternalVCIfNecessary:props];
}

- (void)dealloc
{
  [[NSNotificationCenter defaultCenter] removeObserver:self];
  self.view = nil;
}

-(void)onRNReload
{
  [[NSNotificationCenter defaultCenter] removeObserver:self];
  self.view = nil;
}

-(void)onCancelReactTouches
{
  if ([self.view isKindOfClass:[RCTRootView class]]){
    [(RCTRootView*)self.view cancelTouches];
  }
}

- (void)sendScreenChangedEvent:(NSString *)eventName
{
  if ([self.view isKindOfClass:[RCTRootView class]]){
    
    RCTRootView *rootView = (RCTRootView *)self.view;
    
    if (rootView.appProperties && rootView.appProperties[@"navigatorEventID"]) {
      
      [[[RCCManager sharedInstance] getBridge].eventDispatcher sendAppEventWithName:rootView.appProperties[@"navigatorEventID"] body:@
       {
         @"type": @"ScreenChangedEvent",
         @"id": eventName
       }];
    }
  }
}

- (void)sendGlobalScreenEvent:(NSString *)eventName endTimestampString:(NSString *)endTimestampStr shouldReset:(BOOL)shouldReset {
  
  if (!self.commandType) return;
  
  if ([self.view isKindOfClass:[RCTRootView class]]){
    NSString *screenName = [((RCTRootView*)self.view) moduleName];
    
    [[[RCCManager sharedInstance] getBridge].eventDispatcher sendAppEventWithName:eventName body:@
     {
       @"commandType": self.commandType ? self.commandType : @"",
       @"screen": screenName ? screenName : @"",
       @"startTime": self.timestamp ? self.timestamp : @"",
       @"endTime": endTimestampStr ? endTimestampStr : @""
     }];
    
    if (shouldReset) {
      self.commandType = nil;
      self.timestamp = nil;
    }
  }
}


-(BOOL)isDisappearTriggeredFromPop:(NSString *)eventName {

  NSArray *navigationViewControllers = self.navigationController.viewControllers;
  
  if (navigationViewControllers.lastObject == self || [navigationViewControllers indexOfObject:self] == NSNotFound) {
    return YES;
  }
  return NO;
}

- (NSString *)getTimestampString {
  long long milliseconds = (long long)([[NSDate date] timeIntervalSince1970] * 1000.0);
  return [NSString stringWithFormat:@"%lld", milliseconds];
}

// This is walk around for React-Native bug.
// https://github.com/wix/react-native-navigation/issues/1446
//
// Buttons in ScrollView after changing route/pushing/showing modal
// while there is a momentum scroll are not clickable.
// Back to normal after user start scroll with momentum
- (void)_traverseAndCall:(UIView*)view
{
  if([view isKindOfClass:[UIScrollView class]] && ([[(UIScrollView*)view delegate] respondsToSelector:@selector(scrollViewDidEndDecelerating:)]) ) {
    dispatch_async(dispatch_get_main_queue(), ^{
      [[(UIScrollView*)view delegate] scrollViewDidEndDecelerating:(id)view];
    });
  
  }
  
  [view.subviews enumerateObjectsUsingBlock:^(__kindof UIView * _Nonnull obj, NSUInteger idx, BOOL * _Nonnull stop) {
    [self _traverseAndCall:obj];
  }];
}

// fix iOS11 safeArea - https://github.com/facebook/react-native/issues/15681
// rnn issue - https://github.com/wix/react-native-navigation/issues/1858
- (void)_traverseAndFixScrollViewSafeArea:(UIView *)view {
#ifdef __IPHONE_11_0
  if ([view isKindOfClass:UIScrollView.class] && [view respondsToSelector:@selector(setContentInsetAdjustmentBehavior:)]) {
    [((UIScrollView*)view) setContentInsetAdjustmentBehavior:UIScrollViewContentInsetAdjustmentNever];
  }
  
  [view.subviews enumerateObjectsUsingBlock:^(__kindof UIView * _Nonnull obj, NSUInteger idx, BOOL * _Nonnull stop) {
    [self _traverseAndFixScrollViewSafeArea:obj];
  }];
#endif
  
}

- (void)viewDidAppear:(BOOL)animated
{
  [super viewDidAppear:animated];
  [self sendGlobalScreenEvent:@"didAppear" endTimestampString:[self getTimestampString] shouldReset:YES];
  [self sendScreenChangedEvent:@"didAppear"];
  
}

- (void)viewWillAppear:(BOOL)animated
{
  [super viewWillAppear:animated];
  [self _traverseAndFixScrollViewSafeArea:self.view];
  [self sendGlobalScreenEvent:@"willAppear" endTimestampString:[self getTimestampString] shouldReset:NO];
  [self sendScreenChangedEvent:@"willAppear"];
  [self setStyleOnAppear];
}

- (void)viewDidDisappear:(BOOL)animated
{
  [self _traverseAndCall:self.view];
  [super viewDidDisappear:animated];
  [self sendGlobalScreenEvent:@"didDisappear" endTimestampString:[self getTimestampString] shouldReset:YES];
  [self sendScreenChangedEvent:@"didDisappear"];
}

- (void)viewWillDisappear:(BOOL)animated
{
  [super viewWillDisappear:animated];
  [self sendGlobalScreenEvent:@"willDisappear" endTimestampString:[self getTimestampString] shouldReset:NO];
  [self sendScreenChangedEvent:@"willDisappear"];
  [self setStyleOnDisappear];
}

// most styles should be set here since when we pop a view controller that changed them
// we want to reset the style to what we expect (so we need to reset on every willAppear)
- (void)setStyleOnAppear
{
  [self setStyleOnAppearForViewController:self appeared:false];
}

- (void)updateStyle
{
  [self setStyleOnAppearForViewController:self appeared:true];
}

-(void)setStyleOnAppearForViewController:(UIViewController*)viewController appeared:(BOOL)appeared
{
  
  NSString *screenBackgroundColor = self.navigatorStyle[@"screenBackgroundColor"];
  if (screenBackgroundColor) {
    
    UIColor *color = screenBackgroundColor != (id)[NSNull null] ? [RCTConvert UIColor:screenBackgroundColor] : nil;
    viewController.view.backgroundColor = color;
  }
  
  NSString *screenBackgroundImageName = self.navigatorStyle[@"screenBackgroundImageName"];
  if (screenBackgroundImageName) {
    
    UIImage *image = [UIImage imageNamed: screenBackgroundImageName];
    viewController.view.layer.contents = (__bridge id _Nullable)(image.CGImage);
  }
  
  NSString *navBarBackgroundColor = self.navigatorStyle[@"navBarBackgroundColor"];
  if (navBarBackgroundColor) {
    
    UIColor *color = navBarBackgroundColor != (id)[NSNull null] ? [RCTConvert UIColor:navBarBackgroundColor] : nil;
    viewController.navigationController.navigationBar.barTintColor = color;
    
  } else {
    viewController.navigationController.navigationBar.barTintColor = nil;
  }
  
  NSMutableDictionary *titleTextAttributes = [RCTHelpers textAttributesFromDictionary:self.navigatorStyle withPrefix:@"navBarText" baseFont:[UIFont boldSystemFontOfSize:17]];
  [self.navigationController.navigationBar setTitleTextAttributes:titleTextAttributes];
  
  if (self.navigationItem.titleView && [self.navigationItem.titleView isKindOfClass:[RCCTitleView class]]) {
    
    RCCTitleView *titleView = (RCCTitleView *)self.navigationItem.titleView;
    RCCTitleViewHelper *helper = [[RCCTitleViewHelper alloc] init:viewController navigationController:viewController.navigationController title:titleView.titleLabel.text subtitle:titleView.subtitleLabel.text titleImageData:nil isSetSubtitle:NO];
    [helper setup:self.navigatorStyle];
  }
  
  NSMutableDictionary *navButtonTextAttributes = [RCTHelpers textAttributesFromDictionary:self.navigatorStyle withPrefix:@"navBarButton"];
  NSMutableDictionary *leftNavButtonTextAttributes = [RCTHelpers textAttributesFromDictionary:self.navigatorStyle withPrefix:@"navBarLeftButton"];
  NSMutableDictionary *rightNavButtonTextAttributes = [RCTHelpers textAttributesFromDictionary:self.navigatorStyle withPrefix:@"navBarRightButton"];
  
  if (
      navButtonTextAttributes.allKeys.count > 0 ||
      leftNavButtonTextAttributes.allKeys.count > 0 ||
      rightNavButtonTextAttributes.allKeys.count > 0
      ) {
    
    for (UIBarButtonItem *item in viewController.navigationItem.leftBarButtonItems) {
      [item setTitleTextAttributes:navButtonTextAttributes forState:UIControlStateNormal];
      
      if (leftNavButtonTextAttributes.allKeys.count > 0) {
        [item setTitleTextAttributes:leftNavButtonTextAttributes forState:UIControlStateNormal];
      }
    }
    
    for (UIBarButtonItem *item in viewController.navigationItem.rightBarButtonItems) {
      [item setTitleTextAttributes:navButtonTextAttributes forState:UIControlStateNormal];
      
      if (rightNavButtonTextAttributes.allKeys.count > 0) {
        [item setTitleTextAttributes:rightNavButtonTextAttributes forState:UIControlStateNormal];
      }
    }
    
    // At the moment, this seems to be the only thing that gets the back button correctly
    [navButtonTextAttributes removeObjectForKey:NSForegroundColorAttributeName];
    [[UIBarButtonItem appearance] setTitleTextAttributes:navButtonTextAttributes forState:UIControlStateNormal];
  }
  
  NSString *navBarButtonColor = self.navigatorStyle[@"navBarButtonColor"];
  if (navBarButtonColor) {
    
    UIColor *color = navBarButtonColor != (id)[NSNull null] ? [RCTConvert UIColor:navBarButtonColor] : nil;
    viewController.navigationController.navigationBar.tintColor = color;
    
  } else
  {
    viewController.navigationController.navigationBar.tintColor = nil;
  }
  
  BOOL viewControllerBasedStatusBar = false;
  
  NSObject *viewControllerBasedStatusBarAppearance = [[NSBundle mainBundle] infoDictionary][@"UIViewControllerBasedStatusBarAppearance"];
  if (viewControllerBasedStatusBarAppearance && [viewControllerBasedStatusBarAppearance isKindOfClass:[NSNumber class]]) {
    viewControllerBasedStatusBar = [(NSNumber *)viewControllerBasedStatusBarAppearance boolValue];
  }
  
  NSString *statusBarTextColorSchemeSingleScreen = self.navigatorStyle[@"statusBarTextColorSchemeSingleScreen"];
  NSString *statusBarTextColorScheme = self.navigatorStyle[@"statusBarTextColorScheme"];
  NSString *finalColorScheme = statusBarTextColorSchemeSingleScreen ? : statusBarTextColorScheme;
  
  if (finalColorScheme && [finalColorScheme isEqualToString:@"light"]) {
    
    if (!statusBarTextColorSchemeSingleScreen) {
      viewController.navigationController.navigationBar.barStyle = UIBarStyleBlack;
    }
    
    self._statusBarTextColorSchemeLight = true;
    if (!viewControllerBasedStatusBarAppearance) {
      [[UIApplication sharedApplication] setStatusBarStyle:UIStatusBarStyleLightContent];
    }
    
    [viewController setNeedsStatusBarAppearanceUpdate];
    
  } else {
    
    if (!statusBarTextColorSchemeSingleScreen) {
      viewController.navigationController.navigationBar.barStyle = UIBarStyleDefault;
    }
    
    self._statusBarTextColorSchemeLight = false;
    
    if (!viewControllerBasedStatusBarAppearance) {
      [[UIApplication sharedApplication] setStatusBarStyle:UIStatusBarStyleDefault];
    }
    [viewController setNeedsStatusBarAppearanceUpdate];
  }
  
  NSNumber *tabBarHidden = self.navigatorStyle[@"tabBarHidden"];
  BOOL tabBarHiddenBool = tabBarHidden ? [tabBarHidden boolValue] : NO;
  if (YES) {
    UITabBar *tabBar = viewController.tabBarController.tabBar;
    tabBar.transform = CGAffineTransformMakeTranslation(0, tabBar.frame.size.height);
  }

  NSNumber *navBarHidden = self.navigatorStyle[@"navBarHidden"];
  BOOL navBarHiddenBool = navBarHidden ? [navBarHidden boolValue] : NO;
  if (viewController.navigationController.navigationBarHidden != navBarHiddenBool) {
    [viewController.navigationController setNavigationBarHidden:YES animated:NO];
  }
  
  NSNumber *navBarHideOnScroll = self.navigatorStyle[@"navBarHideOnScroll"];
  BOOL navBarHideOnScrollBool = navBarHideOnScroll ? [navBarHideOnScroll boolValue] : NO;
  if (navBarHideOnScrollBool) {
    viewController.navigationController.hidesBarsOnSwipe = YES;
  } else {
    viewController.navigationController.hidesBarsOnSwipe = NO;
  }
  
  NSNumber *statusBarBlur = self.navigatorStyle[@"statusBarBlur"];
  BOOL statusBarBlurBool = statusBarBlur ? [statusBarBlur boolValue] : NO;
  if (statusBarBlurBool && ![viewController.view viewWithTag:BLUR_STATUS_TAG]) {
    
    UIVisualEffectView *blur = [[UIVisualEffectView alloc] initWithEffect:[UIBlurEffect effectWithStyle:UIBlurEffectStyleLight]];
    blur.frame = [[UIApplication sharedApplication] statusBarFrame];
    blur.tag = BLUR_STATUS_TAG;
    [viewController.view insertSubview:blur atIndex:0];
  }
  
  NSNumber *navBarBlur = self.navigatorStyle[@"navBarBlur"];
  BOOL navBarBlurBool = navBarBlur ? [navBarBlur boolValue] : NO;
  if (navBarBlurBool) {
    
    if (![viewController.navigationController.navigationBar viewWithTag:BLUR_NAVBAR_TAG]) {
      [self storeOriginalNavBarImages];
      
      [viewController.navigationController.navigationBar setBackgroundImage:[UIImage new] forBarMetrics:UIBarMetricsDefault];
      viewController.navigationController.navigationBar.shadowImage = [UIImage new];
      UIVisualEffectView *blur = [[UIVisualEffectView alloc] initWithEffect:[UIBlurEffect effectWithStyle:UIBlurEffectStyleLight]];
      CGRect statusBarFrame = [[UIApplication sharedApplication] statusBarFrame];
      blur.frame = CGRectMake(0, -1 * statusBarFrame.size.height, viewController.navigationController.navigationBar.frame.size.width, viewController.navigationController.navigationBar.frame.size.height + statusBarFrame.size.height);
      blur.userInteractionEnabled = NO;
      blur.tag = BLUR_NAVBAR_TAG;
      [viewController.navigationController.navigationBar insertSubview:blur atIndex:0];
      [viewController.navigationController.navigationBar sendSubviewToBack:blur];
    }
    
  } else {
    
    UIView *blur = [viewController.navigationController.navigationBar viewWithTag:BLUR_NAVBAR_TAG];
    if (blur) {
      [blur removeFromSuperview];
      [viewController.navigationController.navigationBar setBackgroundImage:self.originalNavBarImages[@"bgImage"] forBarMetrics:UIBarMetricsDefault];
      viewController.navigationController.navigationBar.shadowImage = self.originalNavBarImages[@"shadowImage"];
      self.originalNavBarImages = nil;
    }
  }
  
  NSNumber *navBarTransparent = self.navigatorStyle[@"navBarTransparent"];
  BOOL navBarTransparentBool = navBarTransparent ? [navBarTransparent boolValue] : NO;
  
  void (^action)() = ^ {
    if (navBarTransparentBool)
    {
      if (![viewController.navigationController.navigationBar viewWithTag:TRANSPARENT_NAVBAR_TAG])
      {
        [self storeOriginalNavBarImages];
        
        [viewController.navigationController.navigationBar setBackgroundImage:[UIImage new] forBarMetrics:UIBarMetricsDefault];
        viewController.navigationController.navigationBar.shadowImage = [UIImage new];
        UIView *transparentView = [[UIView alloc] initWithFrame:CGRectZero];
        transparentView.tag = TRANSPARENT_NAVBAR_TAG;
        [viewController.navigationController.navigationBar insertSubview:transparentView atIndex:0];
      }
    }
    else
    {
      UIView *transparentView = [viewController.navigationController.navigationBar viewWithTag:TRANSPARENT_NAVBAR_TAG];
      if (transparentView)
      {
        [transparentView removeFromSuperview];
        [viewController.navigationController.navigationBar setBackgroundImage:self.originalNavBarImages[@"bgImage"] forBarMetrics:UIBarMetricsDefault];
        viewController.navigationController.navigationBar.shadowImage = self.originalNavBarImages[@"shadowImage"];
        self.originalNavBarImages = nil;
      }
    }
  };
  
  if (!self.transitionCoordinator || self.transitionCoordinator.initiallyInteractive || !navBarTransparentBool || appeared) {
    action();
  } else {
    UIView* backgroundView = [self.navigationController.navigationBar valueForKey:@"backgroundView"];
    CGFloat originalAlpha = backgroundView.alpha;
    backgroundView.alpha = navBarTransparentBool ? 0.0 : 1.0;
    [self.transitionCoordinator animateAlongsideTransition:nil completion:^(id<UIViewControllerTransitionCoordinatorContext>  _Nonnull context) {
      action();
      backgroundView.alpha = originalAlpha;
    }];
  }
  
  NSNumber *autoAdjustsScrollViewInsets = self.navigatorStyle[@"autoAdjustScrollViewInsets"];
  viewController.automaticallyAdjustsScrollViewInsets = autoAdjustsScrollViewInsets ? [autoAdjustsScrollViewInsets boolValue] : false;
  
  NSNumber *navBarTranslucent = self.navigatorStyle[@"navBarTranslucent"];
  BOOL navBarTranslucentBool = navBarTranslucent ? [navBarTranslucent boolValue] : NO;
  if (navBarTranslucentBool || navBarBlurBool) {
    viewController.navigationController.navigationBar.translucent = YES;
  } else {
    viewController.navigationController.navigationBar.translucent = NO;
  }
  
  NSNumber *extendedLayoutIncludesOpaqueBars = self.navigatorStyle[@"extendedLayoutIncludesOpaqueBars"];
  BOOL extendedLayoutIncludesOpaqueBarsBool = extendedLayoutIncludesOpaqueBars ? [extendedLayoutIncludesOpaqueBars boolValue] : NO;
  viewController.extendedLayoutIncludesOpaqueBars = extendedLayoutIncludesOpaqueBarsBool;
  
  NSNumber *drawUnderNavBar = self.navigatorStyle[@"drawUnderNavBar"];
  BOOL drawUnderNavBarBool = drawUnderNavBar ? [drawUnderNavBar boolValue] : NO;
  if (drawUnderNavBarBool) {
    viewController.edgesForExtendedLayout |= UIRectEdgeTop;
  }
  else {
    viewController.edgesForExtendedLayout &= ~UIRectEdgeTop;
  }
  
  NSNumber *drawUnderTabBar = self.navigatorStyle[@"drawUnderTabBar"];
  BOOL drawUnderTabBarBool = drawUnderTabBar ? [drawUnderTabBar boolValue] : NO;
  if (YES) {
    viewController.edgesForExtendedLayout |= UIRectEdgeBottom;
  } else {
    viewController.edgesForExtendedLayout &= ~UIRectEdgeBottom;
  }
  
  NSNumber *removeNavBarBorder = self.navigatorStyle[@"navBarNoBorder"];
  BOOL removeNavBarBorderBool = removeNavBarBorder ? [removeNavBarBorder boolValue] : NO;
  if (removeNavBarBorderBool) {
    self.navBarHairlineImageView.hidden = YES;
  } else {
    self.navBarHairlineImageView.hidden = NO;
  }
  
 //Bug fix: in case there is a interactivePopGestureRecognizer, it prevents react-native from getting touch events on the left screen area that the gesture handles
 //overriding the delegate of the gesture prevents this from happening while keeping the gesture intact (another option was to disable it completely by demand)
 if(self.navigationController.viewControllers.count > 1){
   if (self.navigationController != nil && self.navigationController.interactivePopGestureRecognizer != nil)
   {
     id <UIGestureRecognizerDelegate> interactivePopGestureRecognizer = self.navigationController.interactivePopGestureRecognizer.delegate;
     if (interactivePopGestureRecognizer != nil && interactivePopGestureRecognizer != self)
     {
       self.originalInteractivePopGestureDelegate = interactivePopGestureRecognizer;
       self.navigationController.interactivePopGestureRecognizer.delegate = self;
     }
   }
 }
  
  NSString *navBarCustomView = self.navigatorStyle[@"navBarCustomView"];
  if (navBarCustomView && ![self.navigationItem.titleView isKindOfClass:[RCCCustomTitleView class]]) {
    if ([self.view isKindOfClass:[RCTRootView class]]) {
      
      RCTBridge *bridge = ((RCTRootView*)self.view).bridge;
      
      NSDictionary *initialProps = self.navigatorStyle[@"navBarCustomViewInitialProps"];
      RCTRootView *reactView = [[RCTRootView alloc] initWithBridge:bridge moduleName:navBarCustomView initialProperties:initialProps];
      
      RCCCustomTitleView *titleView = [[RCCCustomTitleView alloc] initWithFrame:self.navigationController.navigationBar.bounds subView:reactView alignment:self.navigatorStyle[@"navBarComponentAlignment"]];
      titleView.backgroundColor = [UIColor clearColor];
      reactView.backgroundColor = [UIColor clearColor];
      
      self.navigationItem.titleView = titleView;
      
      self.navigationItem.titleView.backgroundColor = [UIColor clearColor];
      self.navigationItem.titleView.autoresizingMask = UIViewAutoresizingFlexibleWidth | UIViewAutoresizingFlexibleLeftMargin | UIViewAutoresizingFlexibleRightMargin;
      self.navigationItem.titleView.clipsToBounds = YES;
    }
  }
}


-(void)storeOriginalNavBarImages {
  
  NSMutableDictionary *originalNavBarImages = [@{} mutableCopy];
  UIImage *bgImage = [self.navigationController.navigationBar backgroundImageForBarMetrics:UIBarMetricsDefault];
  if (bgImage != nil) {
    originalNavBarImages[@"bgImage"] = bgImage;
  }
  UIImage *shadowImage = self.navigationController.navigationBar.shadowImage;
  if (shadowImage != nil) {
    originalNavBarImages[@"shadowImage"] = shadowImage;
  }
  self.originalNavBarImages = originalNavBarImages;
  
}

-(void)setStyleOnDisappear {
  self.navBarHairlineImageView.hidden = NO;
  
  if (self.navigationController != nil && self.navigationController.interactivePopGestureRecognizer != nil && self.originalInteractivePopGestureDelegate != nil)
  {
    self.navigationController.interactivePopGestureRecognizer.delegate = self.originalInteractivePopGestureDelegate;
    self.originalInteractivePopGestureDelegate = nil;
  }
}

// only styles that can't be set on willAppear should be set here
- (void)setStyleOnInit
{
  NSNumber *tabBarHidden = self.navigatorStyle[@"tabBarHidden"];
  BOOL tabBarHiddenBool = tabBarHidden ? [tabBarHidden boolValue] : NO;
  if (tabBarHiddenBool) {
    self._hidesBottomBarWhenPushed = YES;
  } else {
    self._hidesBottomBarWhenPushed = NO;
  }
  
  NSNumber *statusBarHideWithNavBar = self.navigatorStyle[@"statusBarHideWithNavBar"];
  BOOL statusBarHideWithNavBarBool = statusBarHideWithNavBar ? [statusBarHideWithNavBar boolValue] : NO;
  if (statusBarHideWithNavBarBool) {
    self._statusBarHideWithNavBar = YES;
  } else {
    self._statusBarHideWithNavBar = NO;
  }
  
  NSNumber *statusBarHidden = self.navigatorStyle[@"statusBarHidden"];
  BOOL statusBarHiddenBool = statusBarHidden ? [statusBarHidden boolValue] : NO;
  if (statusBarHiddenBool) {
    self._statusBarHidden = YES;
  } else {
    self._statusBarHidden = NO;
  }
}

- (BOOL)hidesBottomBarWhenPushed
{
    return YES;
  if (!self._hidesBottomBarWhenPushed) return NO;
  return (self.navigationController.topViewController == self);
}

- (BOOL)prefersStatusBarHidden
{
  if (self._statusBarHidden) {
    return YES;
  }
  
  if (self._statusBarHideWithNavBar) {
    return self.navigationController.isNavigationBarHidden;
  } else {
    return NO;
  }
}

- (void)setNavBarVisibilityChange:(BOOL)animated {
  [self.navigationController setNavigationBarHidden:YES animated:NO];
}


- (UIStatusBarStyle)preferredStatusBarStyle
{
  if (self._statusBarTextColorSchemeLight){
    return UIStatusBarStyleLightContent;
  } else {
    return UIStatusBarStyleDefault;
  }
}

- (UIImageView *)findHairlineImageViewUnder:(UIView *)view {
  if ([view isKindOfClass:UIImageView.class] && view.bounds.size.height <= 1.0) {
    return (UIImageView *)view;
  }
  for (UIView *subview in view.subviews) {
    UIImageView *imageView = [self findHairlineImageViewUnder:subview];
    if (imageView) {
      return imageView;
    }
  }
  return nil;
}

-(void)addExternalVCIfNecessary:(NSDictionary*)props
{
  NSString *externalScreenClass = props[@"externalNativeScreenClass"];
  if (externalScreenClass != nil)
  {
    Class class = NSClassFromString(externalScreenClass);
    if (class != NULL)
    {
      id obj = [[class alloc] init];
      if (obj != nil && [obj isKindOfClass:[UIViewController class]] && [obj conformsToProtocol:@protocol(RCCExternalViewControllerProtocol)])
      {
        ((id <RCCExternalViewControllerProtocol>)obj).controllerDelegate = self;
        [obj setProps:props[@"externalNativeScreenProps"]];
        
        UIViewController *viewController = (UIViewController*)obj;
        [self addChildViewController:viewController];
        viewController.view.frame = self.view.bounds;
        [self.view addSubview:viewController.view];
        [viewController didMoveToParentViewController:self];
      }
      else
      {
        NSLog(@"addExternalVCIfNecessary: could not create instance. Make sure that your class is a UIViewController whihc confirms to RCCExternalViewControllerProtocol");
      }
    }
    else
    {
      NSLog(@"addExternalVCIfNecessary: could not create class from string. Check that the proper class name wass passed in ExternalNativeScreenClass");
    }
  }
}

#pragma mark - NewRelic

- (NSString*) customNewRelicInteractionName
{
  NSString *interactionName = nil;
  
  if (self.view != nil && [self.view isKindOfClass:[RCTRootView class]])
  {
    NSString *moduleName = ((RCTRootView*)self.view).moduleName;
    if(moduleName != nil)
    {
      interactionName = [NSString stringWithFormat:@"RCCViewController: %@", moduleName];
    }
  }
  
  if (interactionName == nil)
  {
    interactionName = [NSString stringWithFormat:@"RCCViewController with title: %@", self.title];
  }
  
  return interactionName;
}

#pragma mark - UIGestureRecognizerDelegate
-(BOOL)gestureRecognizerShouldBegin:(UIGestureRecognizer *)gestureRecognizer {
  NSNumber *disabledBackGesture = self.navigatorStyle[@"disabledBackGesture"];
  BOOL disabledBackGestureBool = disabledBackGesture ? [disabledBackGesture boolValue] : NO;
  return !disabledBackGestureBool;
}

-(BOOL)gestureRecognizer:(UIGestureRecognizer *)gestureRecognizer shouldRecognizeSimultaneouslyWithGestureRecognizer:(UIGestureRecognizer *)otherGestureRecognizer{
  NSNumber *disabledSimultaneousGesture = self.navigatorStyle[@"disabledSimultaneousGesture"];
  BOOL disabledSimultaneousGestureBool = disabledSimultaneousGesture ? [disabledSimultaneousGesture boolValue] : YES; // make default value of disabledSimultaneousGesture is true
  return !disabledSimultaneousGestureBool;
}

@end

react-native-navigation.podspec

require 'json'

package = JSON.parse(File.read(File.join(__dir__, 'package.json')))

Pod::Spec.new do |s|
  s.name         = "react-native-navigation"
  s.version      = package['version']
  s.summary      = "A Native Navigation Solution for React Native"

  s.authors      = "Wix"
  s.homepage     = "https://github.com/wix/react-native-navigation.git#readme"
  s.license      = package['license']
  s.platform     = :ios, "8.0"

  s.module_name  = 'ReactNativeNavigation'

  s.source       = { :git => "https://github.com/wix/react-native-navigation.git", :tag => "v#{s.version}" }
  s.source_files  = "ios/**/*.{h,m}"
  s.header_mappings_dir = 'ios'
  s.public_header_files = "ios/*.h"

  s.dependency 'React'
  s.frameworks = 'UIKit'
end