Fix bottomTabs.currentTabIndex, Closes #5012 (#5013)

* Fix bottomTabs.currentTabIndex, Closes #5012

* Set currentTabIndex on init

lib/ios/RNNBasePresenter.h

@@ -14,8 +14,6 @@ typedef void (^RNNReactViewReadyCompletionBlock)(void);
 
 - (void)applyOptions:(RNNNavigationOptions *)options;
 
-- (void)applyOptionsOnSetViewControllers:(RNNNavigationOptions *)options;
-
 - (void)applyOptionsOnWillMoveToParentViewController:(RNNNavigationOptions *)options;
 
 - (void)mergeOptions:(RNNNavigationOptions *)newOptions currentOptions:(RNNNavigationOptions *)currentOptions defaultOptions:(RNNNavigationOptions *)defaultOptions;

lib/ios/RNNBasePresenter.m

@@ -19,10 +19,6 @@
 	
 }
 
-- (void)applyOptionsOnSetViewControllers:(RNNNavigationOptions *)options {
-	
-}
-
 - (void)applyOptionsOnWillMoveToParentViewController:(RNNNavigationOptions *)options {
 	UIViewController* viewController = self.bindedViewController;
 	

lib/ios/RNNTabBarController.m

@@ -4,11 +4,6 @@
 	NSUInteger _currentTabIndex;
 }
 
-- (void)setViewControllers:(NSArray<__kindof UIViewController *> *)viewControllers {
-	[super setViewControllers:viewControllers];
-	[self.presenter applyOptionsOnSetViewControllers:self.resolveOptions];
-}
-
 - (id<UITabBarControllerDelegate>)delegate {
 	return self;
 }

lib/ios/RNNTabBarPresenter.m

@@ -3,7 +3,7 @@
 
 @implementation RNNTabBarPresenter
 
-- (void)applyOptionsOnSetViewControllers:(RNNNavigationOptions *)options {
+- (void)applyOptionsOnInit:(RNNNavigationOptions *)options {
 	UITabBarController* tabBarController = self.bindedViewController;
 	[tabBarController rnn_setCurrentTabIndex:[options.bottomTabs.currentTabIndex getWithDefaultValue:0]];
 }

lib/ios/ReactNativeNavigationTests/RNNTabBarControllerTest.m

@@ -153,4 +153,14 @@
 	XCTAssertTrue(uut.selectedIndex == 1);
 }
 
+- (void)testSetSelectedIndex_ShouldSetSelectedIndexWithCurrentTabIndex {
+	RNNNavigationOptions* options = [[RNNNavigationOptions alloc] initEmptyOptions];
+	options.bottomTabs.currentTabIndex = [[IntNumber alloc] initWithValue:@(1)];
+
+	RNNRootViewController* vc = [[RNNRootViewController alloc] initWithLayoutInfo:nil rootViewCreator:nil eventEmitter:nil presenter:nil options:nil defaultOptions:nil];
+	RNNTabBarController* uut = [[RNNTabBarController alloc] initWithLayoutInfo:nil creator:nil options:options defaultOptions:nil presenter:[RNNTabBarPresenter new] eventEmitter:nil childViewControllers:@[[UIViewController new], vc]];
+	
+	XCTAssertTrue(uut.selectedIndex == 1);
+}
+
 @end

lib/ios/ReactNativeNavigationTests/RNNTabBarPresenterTest.m

@@ -54,13 +54,5 @@
 	[self.bindedViewController verify];
 }
 
-- (void)testApplyOptions_shouldApplyOptionsOnSetViewControllers {
-	RNNNavigationOptions* initialOptions = [[RNNNavigationOptions alloc] initEmptyOptions];
-	initialOptions.bottomTabs.currentTabIndex = [[IntNumber alloc] initWithValue:@(1)];
-	[[self.bindedViewController expect] rnn_setCurrentTabIndex:1];
-	
-	[self.uut applyOptionsOnSetViewControllers:initialOptions];
-	[self.bindedViewController verify];
-}
 
 @end