Feature/android splash screen (#257)

* Scope snippets

* Add xml formatting option

* Add splash screen icon

* Cleanup android manifest

* Add changelog entry

.vscode/lemmur.code-snippets

@@ -5,28 +5,34 @@
     "body": ["\"$1\": \"$2\",", "\"@$1\": {}$0"]
   },
   "Assert not null": {
+    "scope": "dart",
     "prefix": "assnotnull",
     "body": ["assert($1 != null)$0"]
   },
   "sizedbox": {
+    "scope": "dart",
     "prefix": "sizedbox",
     "body": ["const SizedBox($1)$0"]
   },
   "theme": {
+    "scope": "dart",
     "prefix": "theme",
     "body": ["final theme = Theme.of(context);"]
   },
   "sleep": {
+    "scope": "dart",
     "prefix": "sleep",
     "body": [
       "await Future<dynamic>.delayed(const Duration(milliseconds: ${1:1000}));$0"
     ]
   },
   "repeat widget": {
+    "scope": "dart",
     "prefix": "repeat",
     "body": ["for(int i = 0; i < $1; i++)$0"]
   },
   "L10n string": {
+    "scope": "dart",
     "prefix": "l10n",
     "body": ["L10n.of(context)!.$0"]
   },

.vscode/settings.json

@@ -2,5 +2,6 @@
   "files.associations": {
     "*.arb": "json"
   },
-  "dart.showTodos": false
+  "dart.showTodos": false,
+  "xml.format.preserveAttributeLineBreaks": true
 }

CHANGELOG.md

@@ -3,6 +3,7 @@
 ### Added
 
 - Logging: local logs about some actions/errors. Can be accessed from **settings > about lemmur > logs**
+- Android theme-aware splash screen (thanks to [@mimi89999](https://github.com/mimi89999))
 
 ## v0.6.0 - 2021-09-06
 

android/app/src/main/AndroidManifest.xml

@@ -1,51 +1,38 @@
-<manifest xmlns:android="http://schemas.android.com/apk/res/android"
-    package="com.krawieck.lemmur">
-    <!-- io.flutter.app.FlutterApplication is an android.app.Application that
-         calls FlutterMain.startInitialization(this); in its onCreate method.
-         In most cases you can leave this as-is, but you if you want to provide
-         additional functionality it is fine to subclass or reimplement
-         FlutterApplication and put your custom class here. -->
-    <uses-permission android:name="android.permission.INTERNET" />
-    <!-- Needed for url_launcher to work on android 11 -->
-    <uses-permission android:name="android.permission.QUERY_ALL_PACKAGES"/>
+<manifest
+  xmlns:android="http://schemas.android.com/apk/res/android"
+  package="com.krawieck.lemmur">
 
-    <application
-        android:name="io.flutter.app.FlutterApplication"
-        android:label="${appName}"
-        android:icon="@mipmap/ic_launcher">
-        <activity
-            android:name=".MainActivity"
-            android:launchMode="singleTop"
-            android:theme="@style/LaunchTheme"
-            android:configChanges="orientation|keyboardHidden|keyboard|screenSize|smallestScreenSize|locale|layoutDirection|fontScale|screenLayout|density|uiMode"
-            android:hardwareAccelerated="true"
-            android:windowSoftInputMode="adjustResize">
-            <!-- Specifies an Android theme to apply to this Activity as soon as
-                 the Android process has started. This theme is visible to the user
-                 while the Flutter UI initializes. After that, this theme continues
-                 to determine the Window background behind the Flutter UI. -->
-            <meta-data
-              android:name="io.flutter.embedding.android.NormalTheme"
-              android:resource="@style/NormalTheme"
-              />
-            <!-- Displays an Android View that continues showing the launch screen
-                 Drawable until Flutter paints its first frame, then this splash
-                 screen fades out. A splash screen is useful to avoid any visual
-                 gap between the end of Android's launch screen and the painting of
-                 Flutter's first frame. -->
-            <meta-data
-              android:name="io.flutter.embedding.android.SplashScreenDrawable"
-              android:resource="@drawable/launch_background"
-              />
-            <intent-filter>
-                <action android:name="android.intent.action.MAIN"/>
-                <category android:name="android.intent.category.LAUNCHER"/>
-            </intent-filter>
-        </activity>
-        <!-- Don't delete the meta-data below.
-             This is used by the Flutter tool to generate GeneratedPluginRegistrant.java -->
-        <meta-data
-            android:name="flutterEmbedding"
-            android:value="2" />
-    </application>
+  <uses-permission android:name="android.permission.INTERNET" />
+  <!-- Needed for url_launcher to work on android 11 -->
+  <uses-permission android:name="android.permission.QUERY_ALL_PACKAGES" />
+
+  <application
+    android:name="io.flutter.app.FlutterApplication"
+    android:label="${appName}"
+    android:icon="@mipmap/ic_launcher">
+
+    <activity
+      android:name=".MainActivity"
+      android:launchMode="singleTop"
+      android:theme="@style/LaunchTheme"
+      android:configChanges="orientation|keyboardHidden|keyboard|screenSize|smallestScreenSize|locale|layoutDirection|fontScale|screenLayout|density|uiMode"
+      android:hardwareAccelerated="true"
+      android:windowSoftInputMode="adjustResize">
+
+      <meta-data
+        android:name="io.flutter.embedding.android.NormalTheme"
+        android:resource="@style/NormalTheme"
+      />
+
+      <intent-filter>
+        <action android:name="android.intent.action.MAIN" />
+        <category android:name="android.intent.category.LAUNCHER" />
+      </intent-filter>
+    </activity>
+
+    <meta-data
+      android:name="flutterEmbedding"
+      android:value="2" />
+
+  </application>
 </manifest>

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

@@ -0,0 +1,10 @@
+<?xml version="1.0" encoding="utf-8"?>
+<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
+    <item android:drawable="@color/splash_screen_background_color" />
+
+    <item>
+        <bitmap
+            android:gravity="center"
+            android:src="@drawable/splash" />
+    </item>
+</layer-list>

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

@@ -1,4 +1,4 @@
 <?xml version="1.0" encoding="utf-8"?>
 <resources>
-    <color name="launch_background_color">#303030</color>
+    <color name="splash_screen_background_color">#303030</color>
 </resources>

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

@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
 <resources>
     <color name="ic_launcher_background">#ffffff</color>
-    <color name="launch_background_color">#fafafa</color>
+    <color name="splash_screen_background_color">#fafafa</color>
 </resources>

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

@@ -1,18 +1,10 @@
 <?xml version="1.0" encoding="utf-8"?>
 <resources>
-    <!-- Theme applied to the Android Window while the process is starting -->
     <style name="LaunchTheme" parent="@android:style/Theme.Black.NoTitleBar">
-        <!-- Show a splash screen on the activity. Automatically removed when
-             Flutter draws its first frame -->
-        <item name="android:windowBackground">@drawable/launch_background</item>
+        <item name="android:windowBackground">@drawable/splash_screen</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:color/white</item>
+        <item name="android:windowBackground">@color/splash_screen_background_color</item>
     </style>
 </resources>