[Flutter] 앱 시작 로딩화면 App loading page

1.패키지 다운로드(https://pub.dev)
Package download from (https://pub.dev)

flutter_native_splash
flutter pub add flutter_native_splash
flutter_native_splash.yaml
pubspec.yaml과 동일 경로에 파일 생성
smae path to pubspec.yaml
vi또는 메모장등으로 원하는 색상 이미지를 원하는대로 수정
“vi” or “notepad” edit what you want color and image whatever .
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:
# dart run flutter_native_splash:create
# To restore Flutter’s default white splash screen, run the following command in the terminal:
# dart run flutter_native_splash:remove

# IMPORTANT NOTE: These parameter do not affect the configuration of Android 12 and later, which
# handle splash screens differently that prior versions of Android. Android 12 and later must be
# configured specifically in the android_12 section below.

# 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: “#009000”
#background_image: “assets/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: assets/images/kaaba/Kaaba.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

# From Android 12 onwards, the splash screen is handled differently than in previous versions.
# Please visit https://developer.android.com/guide/topics/ui/splash-screen
# Following are specific parameters for Android 12+.
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: assets/android12splash.png

# The android, ios and web parameters can be used to disable generating a splash screen on a given
# platform.
#android: false
#ios: false
#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.gif
#image_dark_web: assets/splash-invert-web.gif
#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
#branding_web: assets/brand-web.gif
#branding_dark_web: assets/dart_dark-web.gif

# 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.setEnabledSystemUIMode(SystemUiMode.manual, overlays: [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’
command on prompt
dart run flutter_native_splash:create
main.dart
Future main() async {
MobileAds.instance.initialize();
WidgetsBinding widgetsBinding = WidgetsFlutterBinding.ensureInitialized();
FlutterNativeSplash.preserve(widgetsBinding: widgetsBinding);
runApp(const WhereIsKaaba());
}
first loaded page type of “statefullWidget”
@override
void initState() {
super.initState(); // whenever your initialization is completed, remove the splash screen:
FlutterNativeSplash.remove();
}
finished!!