├── Resources └── growing_text_view.gif ├── GrowingTextView ├── SupportingFiles │ ├── Assets.xcassets │ │ ├── Contents.json │ │ ├── background.colorset │ │ │ └── Contents.json │ │ ├── inputBorder.colorset │ │ │ └── Contents.json │ │ ├── messageBackground.colorset │ │ │ └── Contents.json │ │ └── AppIcon.appiconset │ │ │ └── Contents.json │ ├── Base.lproj │ │ └── LaunchScreen.storyboard │ └── Info.plist ├── Extensions │ ├── String+OrEmpty.swift │ └── Color.swift ├── Application │ ├── SceneDelegate.swift │ └── AppDelegate.swift ├── GrowinTextView │ ├── GrowingTextInputView.swift │ └── TextViewWrapper.swift └── ExampleView │ └── ChatView.swift ├── GrowingTextView.xcodeproj ├── project.xcworkspace │ ├── contents.xcworkspacedata │ └── xcshareddata │ │ └── IDEWorkspaceChecks.plist ├── xcuserdata │ └── maciejgomolka.xcuserdatad │ │ └── xcschemes │ │ └── xcschememanagement.plist └── project.pbxproj ├── .gitignore ├── README.md └── LICENSE /Resources/growing_text_view.gif: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/Zaprogramiacz/GrowingTextView/HEAD/Resources/growing_text_view.gif -------------------------------------------------------------------------------- /GrowingTextView/SupportingFiles/Assets.xcassets/Contents.json: -------------------------------------------------------------------------------- 1 | { 2 | "info" : { 3 | "author" : "xcode", 4 | "version" : 1 5 | } 6 | } 7 | -------------------------------------------------------------------------------- /GrowingTextView/Extensions/String+OrEmpty.swift: -------------------------------------------------------------------------------- 1 | extension Optional where Wrapped == String { 2 | var orEmpty: String { 3 | self ?? "" 4 | } 5 | } 6 | -------------------------------------------------------------------------------- /GrowingTextView.xcodeproj/project.xcworkspace/contents.xcworkspacedata: -------------------------------------------------------------------------------- 1 | 2 | 4 | 6 | 7 | 8 | -------------------------------------------------------------------------------- /GrowingTextView/Extensions/Color.swift: -------------------------------------------------------------------------------- 1 | import SwiftUI 2 | 3 | extension Color { 4 | static var background: Color { .init("background") } 5 | static var inputBorder: Color { .init("inputBorder") } 6 | static var messageBackground: Color { .init("messageBackground") } 7 | } 8 | -------------------------------------------------------------------------------- /GrowingTextView.xcodeproj/project.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | IDEDidComputeMac32BitWarning 6 | 7 | 8 | 9 | -------------------------------------------------------------------------------- /.gitignore: -------------------------------------------------------------------------------- 1 | xcuserdata/ 2 | 3 | *.xcscmblueprint 4 | *.xccheckout 5 | 6 | build/ 7 | DerivedData/ 8 | *.moved-aside 9 | *.pbxuser 10 | !default.pbxuser 11 | *.mode1v3 12 | !default.mode1v3 13 | *.mode2v3 14 | !default.mode2v3 15 | *.perspectivev3 16 | !default.perspectivev3 17 | 18 | *.hmap 19 | 20 | *.ipa 21 | *.dSYM.zip 22 | *.dSYM 23 | 24 | timeline.xctimeline 25 | playground.xcworkspace 26 | 27 | .build/ 28 | -------------------------------------------------------------------------------- /GrowingTextView/SupportingFiles/Assets.xcassets/background.colorset/Contents.json: -------------------------------------------------------------------------------- 1 | { 2 | "colors" : [ 3 | { 4 | "color" : { 5 | "color-space" : "srgb", 6 | "components" : { 7 | "alpha" : "1.000", 8 | "blue" : "243", 9 | "green" : "238", 10 | "red" : "237" 11 | } 12 | }, 13 | "idiom" : "universal" 14 | } 15 | ], 16 | "info" : { 17 | "author" : "xcode", 18 | "version" : 1 19 | } 20 | } 21 | -------------------------------------------------------------------------------- /GrowingTextView/SupportingFiles/Assets.xcassets/inputBorder.colorset/Contents.json: -------------------------------------------------------------------------------- 1 | { 2 | "colors" : [ 3 | { 4 | "color" : { 5 | "color-space" : "srgb", 6 | "components" : { 7 | "alpha" : "1.000", 8 | "blue" : "0.749", 9 | "green" : "0.749", 10 | "red" : "0.749" 11 | } 12 | }, 13 | "idiom" : "universal" 14 | } 15 | ], 16 | "info" : { 17 | "author" : "xcode", 18 | "version" : 1 19 | } 20 | } 21 | -------------------------------------------------------------------------------- /GrowingTextView.xcodeproj/xcuserdata/maciejgomolka.xcuserdatad/xcschemes/xcschememanagement.plist: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | SchemeUserState 6 | 7 | GrowingTextView.xcscheme_^#shared#^_ 8 | 9 | orderHint 10 | 0 11 | 12 | 13 | 14 | 15 | -------------------------------------------------------------------------------- /GrowingTextView/SupportingFiles/Assets.xcassets/messageBackground.colorset/Contents.json: -------------------------------------------------------------------------------- 1 | { 2 | "colors" : [ 3 | { 4 | "color" : { 5 | "color-space" : "srgb", 6 | "components" : { 7 | "alpha" : "1.000", 8 | "blue" : "0.091", 9 | "green" : "0.715", 10 | "red" : "0.147" 11 | } 12 | }, 13 | "idiom" : "universal" 14 | } 15 | ], 16 | "info" : { 17 | "author" : "xcode", 18 | "version" : 1 19 | } 20 | } 21 | -------------------------------------------------------------------------------- /GrowingTextView/Application/SceneDelegate.swift: -------------------------------------------------------------------------------- 1 | import UIKit 2 | import SwiftUI 3 | 4 | class SceneDelegate: UIResponder, UIWindowSceneDelegate { 5 | 6 | var window: UIWindow? 7 | 8 | func scene(_ scene: UIScene, 9 | willConnectTo session: UISceneSession, 10 | options connectionOptions: UIScene.ConnectionOptions) { 11 | guard let windowScene = scene as? UIWindowScene else { return } 12 | window = UIWindow(windowScene: windowScene) 13 | window?.rootViewController = UIHostingController(rootView: ChatView()) 14 | window?.makeKeyAndVisible() 15 | } 16 | 17 | } 18 | -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | # Growing text view in SwiftUI 2 | 3 | ![Swift: 5.2](https://img.shields.io/badge/Swift-5.2-blue.svg) 4 | ![SwiftUI](https://img.shields.io/badge/UI_framework-SwiftUI-green.svg) 5 | 6 | If you are planning to write a messaging feature or you are just a SwiftUI enthusiast, this repository can be interesting for you. SwiftUI doesn't provide us the equivalent of UITextView, so to use it in SwiftUI, you need to write a wrapper. Additionally, UITextView can't have a placeholder. I've made a component that can have a placeholder and grow to a predefined height. I hope that this piece of code will help in your SwiftIU adventure. 7 | 8 | ![preview](Resources/growing_text_view.gif) 9 | 10 | # [License](LICENSE) 11 | -------------------------------------------------------------------------------- /GrowingTextView/Application/AppDelegate.swift: -------------------------------------------------------------------------------- 1 | import UIKit 2 | 3 | @UIApplicationMain 4 | class AppDelegate: UIResponder, UIApplicationDelegate { 5 | 6 | func application(_ application: UIApplication, 7 | didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?) -> Bool { 8 | true 9 | } 10 | 11 | // MARK: UISceneSession Lifecycle 12 | 13 | func application(_ application: UIApplication, 14 | configurationForConnecting connectingSceneSession: UISceneSession, 15 | options: UIScene.ConnectionOptions) -> UISceneConfiguration { 16 | UISceneConfiguration(name: "Default Configuration", sessionRole: connectingSceneSession.role) 17 | } 18 | 19 | } 20 | -------------------------------------------------------------------------------- /LICENSE: -------------------------------------------------------------------------------- 1 | MIT License 2 | 3 | Copyright (c) 2020 Maciej Gomółka 4 | 5 | Permission is hereby granted, free of charge, to any person obtaining a copy 6 | of this software and associated documentation files (the "Software"), to deal 7 | in the Software without restriction, including without limitation the rights 8 | to use, copy, modify, merge, publish, distribute, sublicense, and/or sell 9 | copies of the Software, and to permit persons to whom the Software is 10 | furnished to do so, subject to the following conditions: 11 | 12 | The above copyright notice and this permission notice shall be included in all 13 | copies or substantial portions of the Software. 14 | 15 | THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 16 | IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 17 | FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 18 | AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 19 | LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 20 | OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 21 | SOFTWARE. 22 | -------------------------------------------------------------------------------- /GrowingTextView/GrowinTextView/GrowingTextInputView.swift: -------------------------------------------------------------------------------- 1 | import SwiftUI 2 | 3 | struct GrowingTextInputView: View { 4 | init(text: Binding, placeholder: String?) { 5 | self._text = text 6 | self.placeholder = placeholder 7 | } 8 | 9 | @Binding var text: String? 10 | @State var focused: Bool = false 11 | @State var contentHeight: CGFloat = 0 12 | 13 | let placeholder: String? 14 | let minHeight: CGFloat = 39 15 | let maxHeight: CGFloat = 150 16 | 17 | var countedHeight: CGFloat { 18 | min(max(minHeight, contentHeight), maxHeight) 19 | } 20 | 21 | var body: some View { 22 | ZStack(alignment: .topLeading) { 23 | Color.white 24 | ZStack(alignment: .topLeading) { 25 | placeholderView 26 | TextViewWrapper(text: $text, focused: $focused, contentHeight: $contentHeight) 27 | }.padding(.horizontal, 4) 28 | }.frame(height: countedHeight) 29 | } 30 | 31 | var placeholderView: some View { 32 | ViewBuilder.buildIf( 33 | showPlaceholder ? 34 | placeholder.map { 35 | Text($0) 36 | .foregroundColor(.gray) 37 | .font(.system(size: 16)) 38 | .padding(.vertical, 8) 39 | .padding(.horizontal, 4) 40 | } : nil 41 | ) 42 | } 43 | 44 | var showPlaceholder: Bool { 45 | !focused && text.orEmpty.isEmpty == true 46 | } 47 | } 48 | 49 | #if DEBUG 50 | struct GrowingTextInputView_Previews: PreviewProvider { 51 | @State static var text: String? 52 | 53 | static var previews: some View { 54 | GrowingTextInputView( 55 | text: $text, 56 | placeholder: "Placeholder" 57 | ) 58 | } 59 | } 60 | #endif 61 | -------------------------------------------------------------------------------- /GrowingTextView/SupportingFiles/Base.lproj/LaunchScreen.storyboard: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | -------------------------------------------------------------------------------- /GrowingTextView/ExampleView/ChatView.swift: -------------------------------------------------------------------------------- 1 | import SwiftUI 2 | 3 | struct ChatView: View { 4 | @State var text: String? 5 | @State var messages: [Message] = [] 6 | 7 | var body: some View { 8 | ZStack { 9 | Color.background 10 | .edgesIgnoringSafeArea(.all) 11 | VStack(spacing: 0) { 12 | HStack(alignment: .center) { 13 | GrowingTextInputView(text: $text, placeholder: "Message") 14 | .cornerRadius(10) 15 | Button(action: sendAction) { 16 | Text("Send") 17 | } 18 | }.padding() 19 | Divider() 20 | ScrollView { 21 | VStack(alignment: .trailing, spacing: 16) { 22 | ForEach(messages, id: \.id) { 23 | self.messageView(text: $0.text) 24 | } 25 | }.padding(.top, 16) 26 | .frame(maxWidth: .infinity, maxHeight: .infinity, alignment: .trailing) 27 | }.edgesIgnoringSafeArea(.bottom) 28 | } 29 | } 30 | } 31 | 32 | func sendAction() { 33 | guard let text = text, !text.isEmpty else { return } 34 | let newMessage = Message(text: text) 35 | messages.insert(newMessage, at: 0) 36 | self.text = nil 37 | UIApplication.shared.windows.forEach { $0.endEditing(true)} 38 | } 39 | 40 | func messageView(text: String) -> some View { 41 | return Text(text) 42 | .foregroundColor(.white) 43 | .padding(.all, 12) 44 | .background(Color.messageBackground) 45 | .cornerRadius(14) 46 | .padding(.trailing, 12) 47 | .padding(.leading, 32) 48 | } 49 | 50 | struct Message { 51 | let id = UUID() 52 | let text: String 53 | } 54 | } 55 | 56 | #if DEBUG 57 | struct ContentView_Previews: PreviewProvider { 58 | static var previews: some View { 59 | ChatView() 60 | } 61 | } 62 | #endif 63 | -------------------------------------------------------------------------------- /GrowingTextView/SupportingFiles/Info.plist: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | CFBundleDevelopmentRegion 6 | $(DEVELOPMENT_LANGUAGE) 7 | CFBundleExecutable 8 | $(EXECUTABLE_NAME) 9 | CFBundleIdentifier 10 | $(PRODUCT_BUNDLE_IDENTIFIER) 11 | CFBundleInfoDictionaryVersion 12 | 6.0 13 | CFBundleName 14 | $(PRODUCT_NAME) 15 | CFBundlePackageType 16 | $(PRODUCT_BUNDLE_PACKAGE_TYPE) 17 | CFBundleShortVersionString 18 | 1.0 19 | CFBundleVersion 20 | 1 21 | LSRequiresIPhoneOS 22 | 23 | UIApplicationSceneManifest 24 | 25 | UIApplicationSupportsMultipleScenes 26 | 27 | UISceneConfigurations 28 | 29 | UIWindowSceneSessionRoleApplication 30 | 31 | 32 | UISceneConfigurationName 33 | Default Configuration 34 | UISceneDelegateClassName 35 | $(PRODUCT_MODULE_NAME).SceneDelegate 36 | 37 | 38 | 39 | 40 | UILaunchStoryboardName 41 | LaunchScreen 42 | UIRequiredDeviceCapabilities 43 | 44 | armv7 45 | 46 | UISupportedInterfaceOrientations 47 | 48 | UIInterfaceOrientationPortrait 49 | 50 | UISupportedInterfaceOrientations~ipad 51 | 52 | UIInterfaceOrientationPortrait 53 | UIInterfaceOrientationPortraitUpsideDown 54 | UIInterfaceOrientationLandscapeLeft 55 | UIInterfaceOrientationLandscapeRight 56 | 57 | 58 | 59 | -------------------------------------------------------------------------------- /GrowingTextView/SupportingFiles/Assets.xcassets/AppIcon.appiconset/Contents.json: -------------------------------------------------------------------------------- 1 | { 2 | "images" : [ 3 | { 4 | "idiom" : "iphone", 5 | "scale" : "2x", 6 | "size" : "20x20" 7 | }, 8 | { 9 | "idiom" : "iphone", 10 | "scale" : "3x", 11 | "size" : "20x20" 12 | }, 13 | { 14 | "idiom" : "iphone", 15 | "scale" : "2x", 16 | "size" : "29x29" 17 | }, 18 | { 19 | "idiom" : "iphone", 20 | "scale" : "3x", 21 | "size" : "29x29" 22 | }, 23 | { 24 | "idiom" : "iphone", 25 | "scale" : "2x", 26 | "size" : "40x40" 27 | }, 28 | { 29 | "idiom" : "iphone", 30 | "scale" : "3x", 31 | "size" : "40x40" 32 | }, 33 | { 34 | "idiom" : "iphone", 35 | "scale" : "2x", 36 | "size" : "60x60" 37 | }, 38 | { 39 | "idiom" : "iphone", 40 | "scale" : "3x", 41 | "size" : "60x60" 42 | }, 43 | { 44 | "idiom" : "ipad", 45 | "scale" : "1x", 46 | "size" : "20x20" 47 | }, 48 | { 49 | "idiom" : "ipad", 50 | "scale" : "2x", 51 | "size" : "20x20" 52 | }, 53 | { 54 | "idiom" : "ipad", 55 | "scale" : "1x", 56 | "size" : "29x29" 57 | }, 58 | { 59 | "idiom" : "ipad", 60 | "scale" : "2x", 61 | "size" : "29x29" 62 | }, 63 | { 64 | "idiom" : "ipad", 65 | "scale" : "1x", 66 | "size" : "40x40" 67 | }, 68 | { 69 | "idiom" : "ipad", 70 | "scale" : "2x", 71 | "size" : "40x40" 72 | }, 73 | { 74 | "idiom" : "ipad", 75 | "scale" : "1x", 76 | "size" : "76x76" 77 | }, 78 | { 79 | "idiom" : "ipad", 80 | "scale" : "2x", 81 | "size" : "76x76" 82 | }, 83 | { 84 | "idiom" : "ipad", 85 | "scale" : "2x", 86 | "size" : "83.5x83.5" 87 | }, 88 | { 89 | "idiom" : "ios-marketing", 90 | "scale" : "1x", 91 | "size" : "1024x1024" 92 | } 93 | ], 94 | "info" : { 95 | "author" : "xcode", 96 | "version" : 1 97 | } 98 | } 99 | -------------------------------------------------------------------------------- /GrowingTextView/GrowinTextView/TextViewWrapper.swift: -------------------------------------------------------------------------------- 1 | import SwiftUI 2 | 3 | struct TextViewWrapper: UIViewRepresentable { 4 | 5 | init(text: Binding, focused: Binding, contentHeight: Binding) { 6 | self._text = text 7 | self._focused = focused 8 | self._contentHeight = contentHeight 9 | } 10 | 11 | @Binding var text: String? 12 | @Binding var focused: Bool 13 | @Binding var contentHeight: CGFloat 14 | 15 | // MARK: - UIViewRepresentable 16 | 17 | func makeUIView(context: Context) -> UITextView { 18 | let textView = UITextView() 19 | textView.delegate = context.coordinator 20 | textView.font = .systemFont(ofSize: 16) 21 | textView.backgroundColor = .clear 22 | textView.autocorrectionType = .no 23 | return textView 24 | } 25 | 26 | func makeCoordinator() -> Coordinator { 27 | Coordinator(text: $text, focused: $focused, contentHeight: $contentHeight) 28 | } 29 | 30 | func updateUIView(_ uiView: UITextView, context: Context) { 31 | uiView.text = text 32 | } 33 | 34 | class Coordinator: NSObject, UITextViewDelegate { 35 | 36 | init(text: Binding, focused: Binding, contentHeight: Binding) { 37 | self._text = text 38 | self._focused = focused 39 | self._contentHeight = contentHeight 40 | } 41 | 42 | @Binding private var text: String? 43 | @Binding private var focused: Bool 44 | @Binding private var contentHeight: CGFloat 45 | 46 | // MARK: - UITextViewDelegate 47 | 48 | func textViewDidChange(_ textView: UITextView) { 49 | text = textView.text 50 | contentHeight = textView.contentSize.height 51 | } 52 | 53 | func textViewDidBeginEditing(_ textView: UITextView) { 54 | focused = true 55 | } 56 | 57 | func textViewDidEndEditing(_ textView: UITextView) { 58 | focused = false 59 | contentHeight = text == nil ? 0 : textView.contentSize.height 60 | } 61 | } 62 | } 63 | 64 | #if DEBUG 65 | struct TextViewWrapper_Previews: PreviewProvider { 66 | @State static var text: String? 67 | 68 | static var previews: some View { 69 | TextViewWrapper(text: $text, focused: .constant(false), contentHeight: .constant(0)) 70 | } 71 | } 72 | #endif 73 | -------------------------------------------------------------------------------- /GrowingTextView.xcodeproj/project.pbxproj: -------------------------------------------------------------------------------- 1 | // !$*UTF8*$! 2 | { 3 | archiveVersion = 1; 4 | classes = { 5 | }; 6 | objectVersion = 50; 7 | objects = { 8 | 9 | /* Begin PBXBuildFile section */ 10 | 47ABE81B2438A16100C870FD /* AppDelegate.swift in Sources */ = {isa = PBXBuildFile; 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