I'm using the flutter native splash package to set my app splash screen and it works well, except at first launch after the app is installed. At first launch, the splash screen is a fully black screen, and I don't know why it occurs.
I configured the splash screen as the flutter native splash documentation describes.
This is my main.dart:
class MyHttpOverrides extends HttpOverrides {
@override
HttpClient createHttpClient(SecurityContext? context) {
return super.createHttpClient(context)
..badCertificateCallback =
(X509Certificate cert, String host, int port) => true;
}
}
void main() {
WidgetsBinding widgetsBinding = WidgetsFlutterBinding.ensureInitialized();
FlutterNativeSplash.preserve(widgetsBinding: widgetsBinding);
HttpOverrides.global = new MyHttpOverrides();
runApp(const MyApp());
}
class MyApp extends StatelessWidget {
const MyApp({Key? key}) : super(key: key);
// This widget is the root of your application.
@override
Widget build(BuildContext context) {
SystemChrome.setPreferredOrientations([
DeviceOrientation.portraitUp,
DeviceOrientation.portraitDown,
]);
final ThemeData theme = ThemeData();
return MultiProvider(
providers: [
ChangeNotifierProvider(
create: (_) => Auth.instance,
),
ChangeNotifierProvider(
create: (_) => Util(),
),
ChangeNotifierProvider(
create: (_) => ProductsProvider(),
),
ChangeNotifierProvider(
create: (_) => CartProvider(),
),
ChangeNotifierProvider(
create: (ctx) => VendasProvider(),
),
ChangeNotifierProvider(
create: (ctx) => EntregaProvider(),
),
],
child: MaterialApp(
title: 'Objetivo App',
theme: theme.copyWith(
colorScheme: theme.colorScheme.copyWith(
primary: Color.fromARGB(255, 1, 4, 131),
secondary: Color.fromARGB(255, 255, 95, 1),
),
),
// theme: ThemeData(
// primarySwatch: MyTheme.ObjetivoMain,
// ),
localizationsDelegates: [
GlobalMaterialLocalizations.delegate,
],
routes: {
AppRoutes.HOME: (ctx) => SplashScreenPage(),
AppRoutes.VENDAS_LISTA: (ctx) => VendasLista(),
// AppRoutes.VENDAS_DETALHE: (ctx) => VendasDetailScreen(),
AppRoutes.USUARIOS_GERAL: (ctx) => GeralScreen(),
AppRoutes.CADASTRO_CLIENTE: (context) => CadastroClienteScreen(),
AppRoutes.ADD_VENDA: (context) => AddVendaScreen(),
AppRoutes.PRE_VENDA: (context) => PreVendaScreen(),
AppRoutes.ADD_PAGAMENTO: (context) => AddPagamentoScreen(),
AppRoutes.DASHBOARD: (context) => Dashboard(),
},
debugShowCheckedModeBanner: false,
),
);
}
}
This is my flutter splash screen .yaml file:
flutter_native_splash:
# This package generates native code to customize Flutter's default white native splash screen
# with background color and splash image.
# Customize the parameters below, and run the following command in the terminal:
# flutter pub run flutter_native_splash:create
# To restore Flutter's default white splash screen, run the following command in the terminal:
# flutter pub run flutter_native_splash:remove
# color or background_image is the only required parameter. Use color to set the background
# of your splash screen to a solid color. Use background_image to set the background of your
# splash screen to a png image. This is useful for gradients. The image will be stretch to the
# size of the app. Only one parameter can be used, color and background_image cannot both be set.
# color: "#000000" #"#010483"
background_image: "images/splash_background.png"
# Optional parameters are listed below. To enable a parameter, uncomment the line by removing
# the leading # character.
# The image parameter allows you to specify an image used in the splash screen. It must be a
# png file and should be sized for 4x pixel density.
# image: images/splash_icon.png
# The branding property allows you to specify an image used as branding in the splash screen.
# It must be a png file. It is supported for Android, iOS and the Web. For Android 12,
# see the Android 12 section below.
#branding: assets/dart.png
# To position the branding image at the bottom of the screen you can use bottom, bottomRight,
# and bottomLeft. The default values is bottom if not specified or specified something else.
#branding_mode: bottom
# The color_dark, background_image_dark, image_dark, branding_dark are parameters that set the background
# and image when the device is in dark mode. If they are not specified, the app will use the
# parameters from above. If the image_dark parameter is specified, color_dark or
# background_image_dark must be specified. color_dark and background_image_dark cannot both be
# set.
#color_dark: "#042a49"
#background_image_dark: "assets/dark-background.png"
#image_dark: assets/splash-invert.png
#branding_dark: assets/dart_dark.png
# Android 12 handles the splash screen differently than previous versions. Please visit
# https://developer.android.com/guide/topics/ui/splash-screen
# Following are Android 12 specific parameter.
android_12:
# The image parameter sets the splash screen icon image. If this parameter is not specified,
# the app's launcher icon will be used instead.
# Please note that the splash screen will be clipped to a circle on the center of the screen.
# App icon with an icon background: This should be 960×960 pixels, and fit within a circle
# 640 pixels in diameter.
# App icon without an icon background: This should be 1152×1152 pixels, and fit within a circle
# 768 pixels in diameter.
image: images/splash_icon.png
# Splash screen background color.
color: "#000000"
# App icon background color.
#icon_background_color: "#111111"
# The branding property allows you to specify an image used as branding in the splash screen.
#branding: assets/dart.png
# The image_dark, color_dark, icon_background_color_dark, and branding_dark set values that
# apply when the device is in dark mode. If they are not specified, the app will use the
# parameters from above.
#image_dark: assets/android12splash-invert.png
#color_dark: "#042a49"
#icon_background_color_dark: "#eeeeee"
# The android, ios and web parameters can be used to disable generating a splash screen on a given
# platform.
android: true
ios: true
#web: false
# Platform specific images can be specified with the following parameters, which will override
# the respective parameter. You may specify all, selected, or none of these parameters:
#color_android: "#42a5f5"
#color_dark_android: "#042a49"
#color_ios: "#42a5f5"
#color_dark_ios: "#042a49"
#color_web: "#42a5f5"
#color_dark_web: "#042a49"
#image_android: assets/splash-android.png
#image_dark_android: assets/splash-invert-android.png
#image_ios: assets/splash-ios.png
#image_dark_ios: assets/splash-invert-ios.png
#image_web: assets/splash-web.png
#image_dark_web: assets/splash-invert-web.png
#background_image_android: "assets/background-android.png"
#background_image_dark_android: "assets/dark-background-android.png"
#background_image_ios: "assets/background-ios.png"
#background_image_dark_ios: "assets/dark-background-ios.png"
#background_image_web: "assets/background-web.png"
#background_image_dark_web: "assets/dark-background-web.png"
#branding_android: assets/brand-android.png
#branding_dark_android: assets/dart_dark-android.png
#branding_ios: assets/brand-ios.png
#branding_dark_ios: assets/dart_dark-ios.png
# The position of the splash image can be set with android_gravity, ios_content_mode, and
# web_image_mode parameters. All default to center.
#
# android_gravity can be one of the following Android Gravity (see
# https://developer.android.com/reference/android/view/Gravity): bottom, center,
# center_horizontal, center_vertical, clip_horizontal, clip_vertical, end, fill, fill_horizontal,
# fill_vertical, left, right, start, or top.
#android_gravity: center
#
# ios_content_mode can be one of the following iOS UIView.ContentMode (see
# https://developer.apple.com/documentation/uikit/uiview/contentmode): scaleToFill,
# scaleAspectFit, scaleAspectFill, center, top, bottom, left, right, topLeft, topRight,
# bottomLeft, or bottomRight.
#ios_content_mode: center
#
# web_image_mode can be one of the following modes: center, contain, stretch, and cover.
#web_image_mode: center
# The screen orientation can be set in Android with the android_screen_orientation parameter.
# Valid parameters can be found here:
# https://developer.android.com/guide/topics/manifest/activity-element#screen
#android_screen_orientation: sensorLandscape
# To hide the notification bar, use the fullscreen parameter. Has no effect in web since web
# has no notification bar. Defaults to false.
# NOTE: Unlike Android, iOS will not automatically show the notification bar when the app loads.
# To show the notification bar, add the following code to your Flutter app:
# WidgetsFlutterBinding.ensureInitialized();
# SystemChrome.setEnabledSystemUIOverlays([SystemUiOverlay.bottom, SystemUiOverlay.top]);
#fullscreen: true
# If you have changed the name(s) of your info.plist file(s), you can specify the filename(s)
# with the info_plist_files parameter. Remove only the # characters in the three lines below,
# do not remove any spaces:
#info_plist_files:
# - 'ios/Runner/Info-Debug.plist'
# - 'ios/Runner/Info-Release.plist'
I got it working.
I call preserve in early in the main
and than call the remove AFTER the runApp().
Beware that my main is async for other reasons, so that could also help with it working.
Future<void> main() async {
final binding = WidgetsFlutterBinding.ensureInitialized();
FlutterNativeSplash.preserve(widgetsBinding: binding);
// ...
runApp(const MyApp());
FlutterNativeSplash.remove();
}