From 81114f7b0d3f89fb62510da33e4c21e2a7a078d5 Mon Sep 17 00:00:00 2001
From: Nicholas Bellucci <nickdbellucci@gmail.com>
Date: Wed, 2 Dec 2020 21:35:49 -0500
Subject: [PATCH] Reverted selected index binding change

---
 Example/Example.xcodeproj/project.pbxproj         |  4 +++-
 Example/Example/ContentView.swift                 |  7 ++++---
 README.md                                         |  4 ++--
 .../Helpers/TabBarController.swift                |  3 ++-
 Sources/StatefulTabView/StatefulTabView.swift     | 15 +++++++++++----
 5 files changed, 22 insertions(+), 11 deletions(-)

diff --git a/Example/Example.xcodeproj/project.pbxproj b/Example/Example.xcodeproj/project.pbxproj
index e136ab9..5f216b5 100644
--- a/Example/Example.xcodeproj/project.pbxproj
+++ b/Example/Example.xcodeproj/project.pbxproj
@@ -216,7 +216,7 @@
 			isa = PBXProject;
 			attributes = {
 				LastSwiftUpdateCheck = 1140;
-				LastUpgradeCheck = 1140;
+				LastUpgradeCheck = 1220;
 				ORGANIZATIONNAME = "Nicholas Bellucci";
 				TargetAttributes = {
 					4C6A94472468D15000D5C6C7 = {
@@ -363,6 +363,7 @@
 				CLANG_WARN_OBJC_IMPLICIT_RETAIN_SELF = YES;
 				CLANG_WARN_OBJC_LITERAL_CONVERSION = YES;
 				CLANG_WARN_OBJC_ROOT_CLASS = YES_ERROR;
+				CLANG_WARN_QUOTED_INCLUDE_IN_FRAMEWORK_HEADER = YES;
 				CLANG_WARN_RANGE_LOOP_ANALYSIS = YES;
 				CLANG_WARN_STRICT_PROTOTYPES = YES;
 				CLANG_WARN_SUSPICIOUS_MOVE = YES;
@@ -423,6 +424,7 @@
 				CLANG_WARN_OBJC_IMPLICIT_RETAIN_SELF = YES;
 				CLANG_WARN_OBJC_LITERAL_CONVERSION = YES;
 				CLANG_WARN_OBJC_ROOT_CLASS = YES_ERROR;
+				CLANG_WARN_QUOTED_INCLUDE_IN_FRAMEWORK_HEADER = YES;
 				CLANG_WARN_RANGE_LOOP_ANALYSIS = YES;
 				CLANG_WARN_STRICT_PROTOTYPES = YES;
 				CLANG_WARN_SUSPICIOUS_MOVE = YES;
diff --git a/Example/Example/ContentView.swift b/Example/Example/ContentView.swift
index f52e531..923252a 100644
--- a/Example/Example/ContentView.swift
+++ b/Example/Example/ContentView.swift
@@ -9,10 +9,11 @@
 import SwiftUI
 
 struct ContentView: View {
+    @State var selectedIndex: Int = 1
     @State var badgeValue: String? = "1"
-    
+
     var body: some View {
-        StatefulTabView {
+        StatefulTabView(selectedIndex: $selectedIndex) {
             Tab(title: "Tab 1", systemImageName: "circle.fill", badgeValue: badgeValue) {
                 NavigationView {
                     List {
@@ -29,7 +30,7 @@ struct ContentView: View {
             }
             
             Tab(title: "Tab 2", systemImageName: "square.fill") {
-                NavigationView{
+                NavigationView {
                     List {
                         Section {
                             ForEach(0..<20, id: \.self) { index in
diff --git a/README.md b/README.md
index eebb1ad..807f233 100644
--- a/README.md
+++ b/README.md
@@ -73,12 +73,12 @@ StatefulTabView {
 
 ### Selected Index
 
-The selected index of the StatefulTabView can be set within the initializer.
+The selected index of the StatefulTabView can be set within the initializer. The passed value is a binding.
 
 ```Swift
 @State var selectedIndex: Int = 2
 
-StatefulTabView(selectedIndex: selectedIndex) {
+StatefulTabView(selectedIndex: $selectedIndex) {
     ...
 }
 ```
diff --git a/Sources/StatefulTabView/Helpers/TabBarController.swift b/Sources/StatefulTabView/Helpers/TabBarController.swift
index 5fe78ff..f374fc0 100644
--- a/Sources/StatefulTabView/Helpers/TabBarController.swift
+++ b/Sources/StatefulTabView/Helpers/TabBarController.swift
@@ -21,7 +21,8 @@ struct TabBarController: UIViewControllerRepresentable {
     var unselectedItemTintColor: UIColor?
     var backgroundColor: UIColor?
     var tabBarConfiguration: TabBarBackgroundConfiguration?
-    var selectedIndex: Int
+    
+    @Binding var selectedIndex: Int
     
     func makeUIViewController(context: Context) -> UITabBarController {
         let tabBarController = UITabBarController()
diff --git a/Sources/StatefulTabView/StatefulTabView.swift b/Sources/StatefulTabView/StatefulTabView.swift
index 1f4e67b..5970a5f 100644
--- a/Sources/StatefulTabView/StatefulTabView.swift
+++ b/Sources/StatefulTabView/StatefulTabView.swift
@@ -11,18 +11,25 @@ public struct StatefulTabView: View {
     internal var viewControllers: [UIHostingController<AnyView>] = []
     internal var tabBarItems: [Tab] = []
 
-    internal var selectedIndex: Int
     internal var barTintColor: UIColor? = nil
     internal var unselectedItemTintColor: UIColor? = nil
     internal var backgroundColor: UIColor? = nil
     internal var tabBarConfiguration: TabBarBackgroundConfiguration? = nil
     
     @State private var stateIndex: Int = 0
+    @Binding private var bindableIndex: Int
 
     private var useBindableIndex: Bool = false
     
-    public init(selectedIndex: Int = 0, @TabBuilder _ content: () -> [Tab]) {
-        self.selectedIndex = selectedIndex
+    public init(selectedIndex: Binding<Int>? = nil, @TabBuilder _ content: () -> [Tab]) {
+        if let selectedIndex = selectedIndex {
+            _bindableIndex = selectedIndex
+            useBindableIndex = true
+        } else {
+            _bindableIndex = .constant(0)
+            useBindableIndex = false
+        }
+
         configureViewControllers(with: content())
     }
 
@@ -33,7 +40,7 @@ public struct StatefulTabView: View {
                          unselectedItemTintColor: unselectedItemTintColor,
                          backgroundColor: backgroundColor,
                          tabBarConfiguration: tabBarConfiguration,
-                         selectedIndex: selectedIndex)
+                         selectedIndex: useBindableIndex ? $bindableIndex : $stateIndex)
             .edgesIgnoringSafeArea(.all)
     }
 }