Add splash screen

android/app/src/main/res/drawable-night-v21/launch_background.xml

@@ -0,0 +1,9 @@
+<?xml version="1.0" encoding="utf-8"?>
+<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
+    <item>
+        <bitmap android:gravity="fill" android:src="@drawable/background"/>
+    </item>
+    <item>
+        <bitmap android:gravity="center" android:src="@drawable/splash"/>
+    </item>
+</layer-list>

android/app/src/main/res/drawable-night/launch_background.xml

@@ -0,0 +1,9 @@
+<?xml version="1.0" encoding="utf-8"?>
+<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
+    <item>
+        <bitmap android:gravity="fill" android:src="@drawable/background"/>
+    </item>
+    <item>
+        <bitmap android:gravity="center" android:src="@drawable/splash"/>
+    </item>
+</layer-list>

android/app/src/main/res/drawable-v21/launch_background.xml

@@ -1,12 +1,9 @@
 <?xml version="1.0" encoding="utf-8"?>
-<!-- Modify this file to customize your launch splash screen -->
 <layer-list xmlns:android="http://schemas.android.com/apk/res/android">
-    <item android:drawable="?android:colorBackground" />
-
-    <!-- You can insert your own image assets here -->
-    <!-- <item>
-        <bitmap
-            android:gravity="center"
-            android:src="@mipmap/launch_image" />
-    </item> -->
+    <item>
+        <bitmap android:gravity="fill" android:src="@drawable/background"/>
+    </item>
+    <item>
+        <bitmap android:gravity="center" android:src="@drawable/splash"/>
+    </item>
 </layer-list>

android/app/src/main/res/drawable/launch_background.xml

@@ -1,12 +1,9 @@
 <?xml version="1.0" encoding="utf-8"?>
-<!-- Modify this file to customize your launch splash screen -->
 <layer-list xmlns:android="http://schemas.android.com/apk/res/android">
-    <item android:drawable="@android:color/white" />
-
-    <!-- You can insert your own image assets here -->
-    <!-- <item>
-        <bitmap
-            android:gravity="center"
-            android:src="@mipmap/launch_image" />
-    </item> -->
+    <item>
+        <bitmap android:gravity="fill" android:src="@drawable/background"/>
+    </item>
+    <item>
+        <bitmap android:gravity="center" android:src="@drawable/splash"/>
+    </item>
 </layer-list>

android/app/src/main/res/values-night-v31/styles.xml

@@ -0,0 +1,21 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <!-- Theme applied to the Android Window while the process is starting when the OS's Dark Mode setting is on -->
+    <style name="LaunchTheme" parent="@android:style/Theme.Black.NoTitleBar">
+        <item name="android:forceDarkAllowed">false</item>
+        <item name="android:windowFullscreen">false</item>
+        <item name="android:windowDrawsSystemBarBackgrounds">false</item>
+        <item name="android:windowLayoutInDisplayCutoutMode">shortEdges</item>
+        <item name="android:windowSplashScreenBackground">#202020</item>
+        <item name="android:windowSplashScreenAnimatedIcon">@drawable/android12splash</item>
+    </style>
+    <!-- Theme applied to the Android Window as soon as the process has started.
+         This theme determines the color of the Android Window while your
+         Flutter UI initializes, as well as behind your Flutter UI while its
+         running.
+         
+         This Theme is only used starting with V2 of Flutter's Android embedding. -->
+    <style name="NormalTheme" parent="@android:style/Theme.Black.NoTitleBar">
+        <item name="android:windowBackground">?android:colorBackground</item>
+    </style>
+</resources>

android/app/src/main/res/values-night/styles.xml

@@ -5,6 +5,10 @@
         <!-- Show a splash screen on the activity. Automatically removed when
              the Flutter engine draws its first frame -->
         <item name="android:windowBackground">@drawable/launch_background</item>
+        <item name="android:forceDarkAllowed">false</item>
+        <item name="android:windowFullscreen">false</item>
+        <item name="android:windowDrawsSystemBarBackgrounds">false</item>
+        <item name="android:windowLayoutInDisplayCutoutMode">shortEdges</item>
     </style>
     <!-- Theme applied to the Android Window as soon as the process has started.
          This theme determines the color of the Android Window while your

android/app/src/main/res/values-v31/styles.xml

@@ -0,0 +1,21 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <!-- Theme applied to the Android Window while the process is starting when the OS's Dark Mode setting is off -->
+    <style name="LaunchTheme" parent="@android:style/Theme.Light.NoTitleBar">
+        <item name="android:forceDarkAllowed">false</item>
+        <item name="android:windowFullscreen">false</item>
+        <item name="android:windowDrawsSystemBarBackgrounds">false</item>
+        <item name="android:windowLayoutInDisplayCutoutMode">shortEdges</item>
+        <item name="android:windowSplashScreenBackground">#ffffff</item>
+        <item name="android:windowSplashScreenAnimatedIcon">@drawable/android12splash</item>
+    </style>
+    <!-- Theme applied to the Android Window as soon as the process has started.
+         This theme determines the color of the Android Window while your
+         Flutter UI initializes, as well as behind your Flutter UI while its
+         running.
+         
+         This Theme is only used starting with V2 of Flutter's Android embedding. -->
+    <style name="NormalTheme" parent="@android:style/Theme.Light.NoTitleBar">
+        <item name="android:windowBackground">?android:colorBackground</item>
+    </style>
+</resources>

android/app/src/main/res/values/styles.xml

@@ -5,6 +5,10 @@
         <!-- Show a splash screen on the activity. Automatically removed when
              the Flutter engine draws its first frame -->
         <item name="android:windowBackground">@drawable/launch_background</item>
+        <item name="android:forceDarkAllowed">false</item>
+        <item name="android:windowFullscreen">false</item>
+        <item name="android:windowDrawsSystemBarBackgrounds">false</item>
+        <item name="android:windowLayoutInDisplayCutoutMode">shortEdges</item>
     </style>
     <!-- Theme applied to the Android Window as soon as the process has started.
          This theme determines the color of the Android Window while your

docs/changelog/v0.4.0.md

@@ -15,6 +15,7 @@
 - Lock rotation to portrait mode for the entire application.
 - Don't allow users to search for whitespace only queries.
 - The dictionary data is now queried in batch from the database, leading to a significant performance improvement.
+- (Re)added a splash screen for nicer looking app startup.
 
 ## Bugfixes 🐞
 
@@ -27,4 +28,4 @@
 
 - Updated flutter: `3.27` -> `3.32`
 - Updated dictionary data
-- Updated dictionary data
+- Updated dictionary data

flutter_native_splash.yaml

@@ -0,0 +1,162 @@
+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: "#3edd00"
+  color_dark: "#202020"
+  #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/splash.png
+  image: "assets/images/logo/mugi.png"
+  image_dark: "assets/images/logo/mugi.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
+
+  # Set the branding padding from the bottom of the screen.  The default value is 0
+  # (Not supported on web yet)
+  # branding_bottom_padding: 24
+
+  # 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 there is no parameter above, the app will use the light mode values.
+  # 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.  To fit a 1152x1152 image within a circle with a 768 diameter, simply
+    # ensure that the most important design elements of your image are placed within a circular area
+    # with a 768 diameter at the center of the 1152x1152 canvas.
+    #image: assets/android12splash.png
+
+    image: "assets/images/logo/mugi_splash.png"
+    image_dark: "assets/images/logo/mugi_splash.png"
+
+    # Splash screen background color.
+    #color: "#42a5f5"
+    color: "#ffffff"
+    color_dark: "#202020"
+
+    # 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.  If there is no parameter above, the app will use the light mode values.
+    #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: 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_bottom_padding_android: 24
+  #branding_dark_android: assets/dart_dark-android.png
+  #branding_ios: assets/brand-ios.png
+  #branding_bottom_padding_ios: 24
+  #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 can be combined using the | operator to achieve multiple effects.
+  # For example:
+  # `android_gravity: fill|clip_vertical` - This will fill the width while maintaining the image's vertical aspect ratio
+  #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'

pubspec.lock

@@ -9,6 +9,14 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "5.1.1"
+  ansicolor:
+    dependency: transitive
+    description:
+      name: ansicolor
+      sha256: "50e982d500bc863e1d703448afdbf9e5a72eb48840a4f766fa361ffd6877055f"
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.0.3"
   archive:
     dependency: "direct main"
     description:
@@ -97,6 +105,14 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "3.0.6"
+  csslib:
+    dependency: transitive
+    description:
+      name: csslib
+      sha256: "09bad715f418841f976c77db72d5398dc1253c21fb9c0c7f0b0b985860b2d58e"
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.0.2"
   csv:
     dependency: transitive
     description:
@@ -206,6 +222,14 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "1.0.3"
+  flutter_native_splash:
+    dependency: "direct main"
+    description:
+      name: flutter_native_splash
+      sha256: "8321a6d11a8d13977fa780c89de8d257cce3d841eecfb7a4cadffcc4f12d82dc"
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.4.6"
   flutter_plugin_android_lifecycle:
     dependency: transitive
     description:
@@ -280,6 +304,14 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "0.14.1"
+  html:
+    dependency: transitive
+    description:
+      name: html
+      sha256: "6d1264f2dffa1b1101c25a91dff0dc2daee4c18e87cd8538729773c073dbf602"
+      url: "https://pub.dev"
+    source: hosted
+    version: "0.15.6"
   http:
     dependency: "direct main"
     description:
@@ -296,6 +328,14 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "4.1.2"
+  image:
+    dependency: transitive
+    description:
+      name: image
+      sha256: "4e973fcf4caae1a4be2fa0a13157aa38a8f9cb049db6529aa00b4d71abc4d928"
+      url: "https://pub.dev"
+    source: hosted
+    version: "4.5.4"
   infinite_scroll_pagination:
     dependency: "direct main"
     description:
@@ -782,6 +822,14 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "1.4.0"
+  universal_io:
+    dependency: transitive
+    description:
+      name: universal_io
+      sha256: "1722b2dcc462b4b2f3ee7d188dad008b6eb4c40bbd03a3de451d82c78bba9aad"
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.2.2"
   url_launcher:
     dependency: "direct main"
     description:
@@ -926,6 +974,14 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "6.5.0"
+  yaml:
+    dependency: transitive
+    description:
+      name: yaml
+      sha256: b9da305ac7c39faa3f030eccd175340f968459dae4af175130b3fc47e40d76ce
+      url: "https://pub.dev"
+    source: hosted
+    version: "3.1.3"
 sdks:
   dart: ">=3.8.0 <4.0.0"
   flutter: ">=3.27.1"

pubspec.yaml

@@ -47,6 +47,7 @@ dev_dependencies:
   flutter_test:
     sdk: flutter
   flutter_lints: ^6.0.0
+  flutter_native_splash: ^2.4.6
 
 flutter:
   uses-material-design: true