Adding a splash screen to Flutter apps

Question

How would you approach adding a splash screen to Flutter apps  It should load and display before any other content  Currently  there is a brief flash of color before the Scaffold home X  widget loads

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Multiple ways you could do this  but the easiest one which I use is   For Launch Icons I use the flutter library Flutter Launcher Icon  For the Custom Splash Screen I create different Screen resolutions and then add the splash images in the mipmap folder as per the resolution for Android   The last part is adjusting the launch background xml in the drawable folder in res folder in Android   Just change your code to look like below    lt  xml version  1 0  encoding  utf-8   gt   lt  -- Modify this file to customize your launch splash screen -- gt   lt layer-list xmlns android  http   schemas android com apk res android  gt       lt  --  lt item android drawable   android color white    gt       lt item android drawable   drawable  lt splashfilename gt     gt      -- gt  -- gt        lt  -- You can insert your own image assets here -- gt       lt item gt           lt bitmap             android gravity  center              android src   mipmap  lt Your splash image name here as per the mipmap folder gt    gt       lt  item gt   lt  layer-list gt    Few devs I have seen add the splash as drawable  I tried this but somehow the build fails in Flutter 1 0 0 and Dart SDK 2 0   Therefore I prefer to add the splash in bitmap section   iOS Splash-screen creation is rather simpler   In the Runner folder in iOS just update the LaunchImage png files with your custom Splash screen images with same names as LaunchImage png  2x   3x   4x   Just an addition I feel its good to have a 4x image as well in the LaunchImage imageset  Just update your code in Content json with following lines  below 3x scale to add a 4x scale option            idiom     universal          filename     LaunchImage 4x png          scale     4x

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In case you want a secondary splash screen  after the native one   here is a simple example that works   class SplashPage extends StatelessWidget     SplashPage BuildContext context        Future delayed const Duration seconds  3                 Navigate here to next screen                 override   Widget build BuildContext context        return Text  Splash screen here

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You can create it two ways  Go to the native package and an initial page  like in Native Android package create a drawable Create a dart screen to display for some time  I found a complete explanation for remove white screen and display splash screen here

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I want to shed some more light on the actual way of doing a Splash screen in Flutter  I followed a little bit the trace here and I saw that things aren t looking so bad about the Splash Screen in Flutter  Maybe most of the devs  like me  are thinking that there isn t a Splash screen by default in Flutter and they need to do something about that  There is a Splash screen  but it s with white background and nobody can understand that there is already a splash screen for iOS and Android by default  The only thing that the developer needs to do is to put the Branding image in the right place and the splash screen will start working just like that  Here is how you can do it step by step  First on Android  because is my favorite Platform       Find the  quot android quot  folder in your Flutter project   Browse to the app - gt  src - gt  main - gt  res folder and place all of the variants of your branding image in the corresponding folders  For example     the image with density 1 needs to be placed in mipmap-mdpi  the image with density 1 5 needs to be placed in mipmap-hdpi  the image with density 2 needs to be placed in mipmap-xhdpi  the image with density 3 needs to be placed in mipmap-xxhdpi  the image with density 4 needs to be placed in mipmap-xxxhdpi   By default in the android folder there isn t a drawable-mdpi  drawable-hdpi  etc   but we can create them if we want  Because of that fact the images need to be placed in the mipmap folders  Also the default XML code about the Splash screen  in Android  is going to use  mipmap  instead of  drawable resource  you can change it if you want    The last step on Android is to uncomment some of the XML code in drawable launch background xml file  Browse to app - gt  src - gt  main - gt  res- gt  drawable and open launch background xml  Inside this file  you shall see why the Slash screen background is white  To apply the branding image which we placed in step 2  we have to uncomment some of the XML code in your launch background xml file  After the change  the code should look like      lt  -- lt item android drawable  quot  android color white quot    gt -- gt     lt item gt         lt bitmap          android gravity  quot center quot           android src  quot  mipmap your image name quot    gt     lt  item gt       Please pay attention that we comment the XML code for the white background and uncomment the code about the mipmap image  If somebody is interested the file launch background xml is used in styles xml file  Second on iOS   Find the  quot ios quot  folder in your Flutter project   Browse to Runner - gt  Assets xcassets - gt  LaunchImage imageset  There should be LaunchImage png  LaunchImage 2x png  etc  Now you have to replace these images with your branding image variants  For example     the image with density 1 needs to override LaunchImage png  the image with density 2 needs to override LaunchImage 2x png  the image with density 3 needs to override LaunchImage 3x png  the image with density 4 needs to override LaunchImage 4x png   If I am not wrong LaunchImage 4x png doesn t exist by default  but you can easily create one  If LaunchImage 4x png doesn t exist  you have to declare it in the Contents json file as well  which is in the same directory as the images  After the change my Contents json file looks like this        quot images quot                   quot idiom quot     quot universal quot          quot filename quot     quot LaunchImage png quot          quot scale quot     quot 1x quot                      quot idiom quot     quot universal quot          quot filename quot     quot LaunchImage 2x png quot          quot scale quot     quot 2x quot                      quot idiom quot     quot universal quot          quot filename quot     quot LaunchImage 3x png quot          quot scale quot     quot 3x quot                      quot idiom quot     quot universal quot          quot filename quot     quot LaunchImage 4x png quot          quot scale quot     quot 4x quot                quot info quot           quot version quot    1       quot author quot     quot xcode quot         That should be all you need  next time when you run your app  on Android or iOS you should have the right Splash Screen with the branding image which you added  Thanks

User · Answer

Flutter actually gives a simpler way to add Splash Screen to our application  We first need to design a basic page as we design other app screens  You need to make it a StatefulWidget since the state of this will change in a few seconds    import  dart async   import  package flutter material dart   import  home dart    class SplashScreen extends StatefulWidget      override    SplashScreenState createState     gt   SplashScreenState       class  SplashScreenState extends State lt SplashScreen gt       override   void initState         super initState        Timer          Duration seconds  3                gt  Navigator of context  pushReplacement MaterialPageRoute              builder   BuildContext context    gt  HomeScreen               override   Widget build BuildContext context        return Scaffold        backgroundColor  Colors white        body  Center          child  Image asset  assets splash png                            Logic Inside the initState    call a Timer   with the duration  as you wish  I made it 3 seconds  once done push the navigator to Home Screen of our application    Note  The application should show the splash screen only once  the user should not go back to it again on back button press  For this  we use Navigator pushReplacement    It will move to a new screen and remove the previous screen from the navigation history stack   For a better understanding  visit Flutter  Design your own Splash Screen

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The easiest way to add a splash screen in flutter is imho this package  https   pub dev packages flutter native splash    Installation guide  by the author of the package    1  Setting the splash screen  Add your settings to your project s pubspec yaml file or create a file in your root project folder named flutter native splash yaml with your settings   flutter native splash    image  assets images splash png   color   42a5f5    image must be a png file   You can use   in color as well  color    42a5f5  You can also set android or ios to false if you don t want to create a splash screen for a specific platform   flutter native splash    image  assets images splash png   color   42a5f5    android  false   In case your image should use all available screen  width and height  you can use fill property   flutter native splash    image  assets images splash png   color   42a5f5    fill  true   Note  fill property is not yet implemented for iOS splash screens   If you want to disable full screen splash screen on Android you can use android disable fullscreen property   flutter native splash    image  assets images splash png   color   42a5f5    android disable fullscreen  true   2  Run the package  After adding your settings  run the package with  flutter pub pub run flutter native splash create When the package finishes running your splash screen is ready

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make your material App like this     Add dependency     import import  package splashscreen splashscreen dart    import  package flutter material dart   import  package splashscreen splashscreen dart   import  package tic tac toe HomePage dart   void main      runApp      MaterialApp        darkTheme  ThemeData dark          debugShowCheckedModeBanner  false        home  new MyApp                  class MyApp extends StatefulWidget      override    MyAppState createState     gt  new  MyAppState       class  MyAppState extends State lt MyApp gt       override   Widget build BuildContext context        return new SplashScreen        seconds  6        navigateAfterSeconds  new HomePage          title  new Text  Welcome         style  new TextStyle          fontWeight  FontWeight bold          fontSize  26 0          color  Colors purple                           image  Image asset  images pic9 png          backgroundColor  Colors white        photoSize  150 0                 The final screen output like this you can change second according to your requirements the circle will be round circular

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You should try below code  worked for me  import  dart async   import  package attendance components appbar dart   import  package attendance homepage dart   import  package flutter material dart    class  SplashScreenState extends State lt SplashScreen gt  with SingleTickerProviderStateMixin     void handleTimeout       Navigator of context  pushReplacement new MaterialPageRoute      builder   BuildContext context    gt  new MyHomePage         startTimeout   async     var duration   const Duration seconds  3     return new Timer duration  handleTimeout       override void initState          TODO  implement initState   super initState        iconAnimationController   new AnimationController        vsync  this  duration  new Duration milliseconds  2000        iconAnimation   new CurvedAnimation        parent   iconAnimationController  curve  Curves easeIn      iconAnimation addListener      gt  this setState              iconAnimationController forward       startTimeout        override Widget build BuildContext context      return new Scaffold      body  new Scaffold        body  new Center          child  new Image          image  new AssetImage  images logo png            width   iconAnimation value   100          height   iconAnimation value   100

User · Answer

Flutter dev already gives the best answer for it  that is not a bug neither a problem  just config  Just take time read and everything will be solved  Have a nice day everyone  https   flutter dev docs development ui advanced splash-screen

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For Android  go to this path  android  gt  app  gt  src  gt  main  gt  res  gt  drawable  gt  launcher background xml default code is for white colour background screen  like this   lt  -- You can insert your own image assets here -- gt    lt item gt       lt bitmap         android gravity  quot center quot          android src  quot  mipmap launch image quot    gt   lt  item gt     You can changes its color or modify this by adding icon or any custom design  for more customisation detail checkout this for android   for Ios open Ios project in Xcode  select Runner and then inside Runner folder Main Storyboard file is there  enter image description here by default its colour is white  you can customise or change colour this by your requirement  for more customisation check out this Ios

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For Android  app -  src -  main -  res - drawble- launch background xml and uncomment  the commented block like this   lt item gt     lt bitmap       android gravity  center        android src   mipmap launch image    gt  lt  item gt    is there any one face any error after coding like this Use sync with system in android studio or invalidate cache and reset This solved my problem In flutter debug mode take some time take for splash screen  After build it will reduce like native android

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Adding a page like below and routing might help  import  dart async    import  package flutter material dart   import  package flutkart utils flutkart dart   import  package flutkart utils my navigator dart    class SplashScreen extends StatefulWidget      override    SplashScreenState createState     gt   SplashScreenState       class  SplashScreenState extends State lt SplashScreen gt       override   void initState            TODO  implement initState     super initState        Timer Duration seconds  5        gt  MyNavigator goToIntro context            override   Widget build BuildContext context        return Scaffold        body  Stack          fit  StackFit expand          children   lt Widget gt             Container              decoration  BoxDecoration color  Colors redAccent                          Column              mainAxisAlignment  MainAxisAlignment start              children   lt Widget gt                 Expanded                  flex  2                  child  Container                    child  Column                      mainAxisAlignment  MainAxisAlignment center                      children   lt Widget gt                         CircleAvatar                          backgroundColor  Colors white                          radius  50 0                          child  Icon                            Icons shopping cart                            color  Colors greenAccent                            size  50 0                                                                            Padding                          padding  EdgeInsets only top  10 0                                                  Text                          Flutkart name                          style  TextStyle                              color  Colors white                              fontWeight  FontWeight bold                              fontSize  24 0                                                                                                                         Expanded                  flex  1                  child  Column                    mainAxisAlignment  MainAxisAlignment center                    children   lt Widget gt                       CircularProgressIndicator                        Padding                        padding  EdgeInsets only top  20 0                                              Text                        Flutkart store                        softWrap  true                        textAlign  TextAlign center                        style  TextStyle                            fontWeight  FontWeight bold                            fontSize  18 0                            color  Colors white                                                                                                                                                 If you want to follow through  see   https   www youtube com watch v FNBuo-7zg2Q

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You can make design of flutter splash screen same as other screens  The only change is use of timer  So you can display splash screen for specific amount of time  import  dart async   import  package flutter material dart     class Splash extends StatefulWidget     override   State lt StatefulWidget gt  createState            TODO  implement createState     return SplashState              class SplashState extends State lt Splash gt      override   Widget build BuildContext context           TODO  implement build     return Scaffold                    override   void initState            TODO  implement initState     super initState        startTimer            startTimer   async       Timer Duration seconds  3   nextScreen            void nextScreen               import    package flutter material dart     import    package fluttersplashsample splash dart      void main     gt  runApp MyApp      class MyApp extends StatelessWidget          This widget is the root of your application       override     Widget build BuildContext context              return MaterialApp                home  Splash

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For Android  go to android   app   src   main   res   drawable   launcher background xml  Now uncomment this and replace  mipmap launch image  with your image location    lt item gt         lt bitmap           android gravity  center            android src   mipmap launch image    gt   lt  item gt    You can change the colour of your screen here -    lt item android drawable   android color white    gt

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Flutter provides you the ability to have a splash screen by default but there are a lot of plugins that can do the job  If you don t want to use a plugin for the task and you re worried that adding a new plugin might affect your app size  Then you can do it like this   FOR Android  Open launch background xml then you can put in the splash screen image  or gradient color you want  This is the first thing your user sees when they open your app    For IOS  Open your app using Xcode  Click on Runner   Assest xcassets   LaunchImage  You can add the image here  If you want to edit what position launch screen image should take or look like you can edit it on LaunchScreen storyboard

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persons who are getting the error like image not found after applying the verified answer make sure that you are adding  mipmap ic launcher instead of  mipmap  ic launcher png

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There isn t a good example of this yet  but you can do it yourself using the native tools for each platform  iOS  https   docs nativescript org tooling publishing creating-launch-screens-ios Android  https   www bignerdranch com blog splash-screens-the-right-way  Subscribe to issue 8147 for updates on example code for splash screens  If the black flicker between the splash screen and the app on iOS bothers you  subscribe to issue 8127 for updates  Edit  As of August 31  2017  improved support for splash screens is now available in the new project template  See  11505

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Both  Collin Jackson and  Sniper are right  You can follow these steps to set up launch images in android and iOS respectively  Then in your MyApp    in your initState    you can use Future delayed to set up a timer or call any api  Until the response is returned from the Future  your launch icons will be shown and then as the response come  you can move to the screen you want to go to after the splash screen  You can see this link   Flutter Splash Screen

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This is the error free and best way to add dynamic splash screen in Flutter    MAIN DART  import  package flutter material dart   import  constant dart    void main     gt  runApp MaterialApp        title   GridView Demo         home  SplashScreen          theme  ThemeData          primarySwatch  Colors red          accentColor  Color 0xFF761322                  routes   lt String  WidgetBuilder gt           SPLASH SCREEN   BuildContext context    gt  SplashScreen            HOME SCREEN   BuildContext context    gt  BasicTable              GRID ITEM DETAILS SCREEN   BuildContext context    gt  GridItemDetails                          SPLASHSCREEN DART  import  dart async   import  package flutter cupertino dart   import  package flutter material dart   import  package app example constants dart     class SplashScreen extends StatefulWidget      override   SplashScreenState createState     gt  new SplashScreenState       class SplashScreenState extends State lt SplashScreen gt      with SingleTickerProviderStateMixin     var  visible   true     AnimationController animationController    Animation lt double gt  animation     startTime   async       var  duration   new Duration seconds  3       return new Timer  duration  navigationPage          void navigationPage         Navigator of context  pushReplacementNamed HOME SCREEN         override dispose       animationController dispose        super dispose          override   void initState         super initState        animationController   new AnimationController        vsync  this        duration  new Duration seconds  2              animation           new CurvedAnimation parent  animationController  curve  Curves easeOut        animation addListener      gt  this setState              animationController forward         setState             visible     visible              startTime            override   Widget build BuildContext context        return Scaffold        body  Stack          fit  StackFit expand          children   lt Widget gt             new Column              mainAxisAlignment  MainAxisAlignment end              mainAxisSize  MainAxisSize min              children   lt Widget gt                 Padding                  padding  EdgeInsets only bottom  30 0                   child  new Image asset                     assets images powered by png                     height  25 0                    fit  BoxFit scaleDown                                                                           new Column              mainAxisAlignment  MainAxisAlignment center              children   lt Widget gt                 new Image asset                   assets images logo png                   width  animation value   250                  height  animation value   250                                                                                     CONSTANTS DART  String SPLASH SCREEN  SPLASH SCREEN   String HOME SCREEN  HOME SCREEN     HOMESCREEN DART  import  package flutter material dart    class BasicTable extends StatelessWidget      override   Widget build BuildContext context        return Scaffold        appBar  AppBar title  Text  Table Widget           body  Center child  Text  Table Widget

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Here are the steps for configuring the splash screen in both IOS and Android platforms for your Flutter app   IOS Platform  All apps submitted to the Apple App Store must use an Xcode storyboard to provide the app   s launch screen  Let   s do this in 3 steps -  Step 1  Open ios Runner xcworkspace from the root of your app directory   Step 2  Select Runner Assets xcassets from the Project Navigator and drag your launch images of all sizes  2x  3x  etc    You can also generate different sizes of images from https   appicon co  image-sets    Step 3  You can see the LaunchScreen storyboard file is showing the provided image  here you can also change the position of the image by simply dragging the image  For more information please see official documentation https   developer apple com design human-interface-guidelines ios visual-design launch-screen     Android Platform  In Android  a launch screen is shown while your Android app initializes  Let   s set this launch screen in 3 steps -  Step 1  Open android app src main res drawable launch background xml file   Step 2  At line number 4 you can select the desired colour -   lt item android drawable   android color white    gt    Step 3  At line number 10 you can change the image -  android src   mipmap launch image      That s all  you are done  Happy Coding

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The code from Jaldhi Bhatt doesn t works for me   Flutter throws a  Navigator operation requested with a context that does not include a Navigator    I fixed the code wrapping the Navigator consumer component inside of another component that initialize the Navigator context using routes  as mentioned in this article   import  dart async    import  package flutter material dart   import  package my-app view main-view dart    class SplashView extends StatelessWidget       override   Widget build BuildContext context        return new MaterialApp          home  Builder            builder   context    gt  new  SplashContent                       routes   lt String  WidgetBuilder gt               main    BuildContext context    gt  new MainView                  class  SplashContent extends StatefulWidget      override    SplashContentState createState     gt  new  SplashContentState       class  SplashContentState extends State lt  SplashContent gt      with SingleTickerProviderStateMixin      var  iconAnimationController    var  iconAnimation     startTimeout   async       var duration   const Duration seconds  3       return new Timer duration  handleTimeout          void handleTimeout         Navigator pushReplacementNamed context    main            override   void initState         super initState          iconAnimationController   new AnimationController          vsync  this  duration  new Duration milliseconds  2000          iconAnimation   new CurvedAnimation          parent   iconAnimationController  curve  Curves easeIn        iconAnimation addListener      gt  this setState                iconAnimationController forward         startTimeout            override   Widget build BuildContext context        return new Center          child  new Image            image  new AssetImage  images logo png              width   iconAnimation value   100            height   iconAnimation value   100

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SplashScreen            seconds  3            navigateAfterSeconds  new MyApp                 title  new Text                  Welcome In SplashScreen                  style  new TextStyle fontWeight  FontWeight bold  fontSize  20 0                             image  new Image network  https   upload wikimedia org wikipedia commons thumb b bd Tesla Motors svg 1200px-Tesla Motors svg png              backgroundColor  Colors white            styleTextUnderTheLoader  new TextStyle              photoSize  150 0            loaderColor  Colors black

[flutter] Adding a splash screen to Flutter apps

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