Initial copy of gallery with history

.gitignore

@@ -1,21 +1,79 @@
-# See https://www.dartlang.org/guides/libraries/private-files
+# Miscellaneous
+*.class
+*.log
+*.pyc
+*.swp
+.DS_Store
+.atom/
+.buildlog/
+.history
+.svn/
+.firebase/
+.flutter-plugins-dependencies
 
-# Files and directories created by pub
+# IntelliJ related
+*.iml
+*.ipr
+*.iws
+.idea/
+
+# The .vscode folder contains launch configuration and tasks you configure in
+# VS Code which you may wish to be included in version control, so this line
+# is commented out by default.
+#.vscode/
+
+# Flutter/Dart/Pub related
+**/doc/api/
 .dart_tool/
+.flutter-plugins
+.flutter-plugins-dependencies
 .packages
-build/
-# If you're building an application, you may want to check-in your pubspec.lock
-pubspec.lock
+.pub-cache/
+.pub/
+/build/
+
+# Android related
+**/android/**/gradle-wrapper.jar
+**/android/.gradle
+**/android/captures/
+**/android/gradlew
+**/android/gradlew.bat
+**/android/local.properties
+**/android/**/GeneratedPluginRegistrant.java
+
+# iOS/XCode related
+**/ios/**/*.mode1v3
+**/ios/**/*.mode2v3
+**/ios/**/*.moved-aside
+**/ios/**/*.pbxuser
+**/ios/**/*.perspectivev3
+**/ios/**/*sync/
+**/ios/**/.sconsign.dblite
+**/ios/**/.tags*
+**/ios/**/.vagrant/
+**/ios/**/DerivedData/
+**/ios/**/Icon?
+**/ios/**/Pods/
+**/ios/**/.symlinks/
+**/ios/**/profile
+**/ios/**/xcuserdata
+**/ios/.generated/
+**/ios/Flutter/App.framework
+**/ios/Flutter/Flutter.framework
+**/ios/Flutter/Generated.xcconfig
+**/ios/Flutter/app.flx
+**/ios/Flutter/app.zip
+**/ios/Flutter/flutter_assets/
+**/ios/Flutter/flutter_export_environment.sh
+**/ios/ServiceDefinitions.json
+**/ios/Runner/GeneratedPluginRegistrant.*
 
-# Directory created by dartdoc
-# If you don't generate documentation locally you can remove this line.
-doc/api/
+# Web related
+lib/generated_plugin_registrant.dart
 
-# Avoid committing generated Javascript files:
-*.dart.js
-*.info.json      # Produced by the --dump-info flag.
-*.js             # When generated by dart2js. Don't specify *.js if your
-                 # project includes source files written in JavaScript.
-*.js_
-*.js.deps
-*.js.map
+# Exceptions to above rules.
+!**/ios/**/default.mode1v3
+!**/ios/**/default.mode2v3
+!**/ios/**/default.pbxuser
+!**/ios/**/default.perspectivev3
+!/packages/flutter_tools/test/data/dart_dependencies_test/**/.packages

.metadata

@@ -0,0 +1,10 @@
+# This file tracks properties of this Flutter project.
+# Used by Flutter tool to assess capabilities and perform upgrades etc.
+#
+# This file should be version controlled and should not be manually edited.
+
+version:
+  revision: f5733f7a62ebc7c2ba324a2b410cd81215956b7d
+  channel: master
+
+project_type: app

README.md

@@ -1,2 +1,102 @@
-# gallery
-Flutter Gallery sample
+# Flutter Gallery
+
+Flutter Gallery is a resource to help developers evaluate and use Flutter.
+It is a collection of Material Design & Cupertino widgets, behaviors, and vignettes
+implemented with Flutter. We often get asked how one can see Flutter in action,
+and this gallery demonstrates what Flutter provides and how it behaves in the
+wild.
+
+![Flutter Gallery](https://user-images.githubusercontent.com/6655696/73928238-0d7fcc80-48d3-11ea-8a7e-ea7dc5d6e713.png)
+
+## Supported Platforms
+
+Flutter Gallery has been built to support multiple platforms.
+This includes:
+
+- Android
+- iOS
+- web
+- macOS
+- Linux
+- Windows
+
+That being said, extra steps must be taken to [enable Desktop support](
+https://github.com/flutter/flutter/wiki/Desktop-shells#tooling). For
+example, to run the macOS app:
+
+```
+cd gallery/
+flutter config --enable-macos-desktop
+flutter create .
+flutter run -d macos
+```
+
+Additionally, the UI adapts between mobile and desktop layouts regardless of the
+platform it runs on. This is determined based on window size as outlined in
+[adaptive.dart](lib/layout/adaptive.dart).
+
+## To include a new splash animation
+
+1. Convert your animation to a `.gif` file.
+   Ideally, use a background color of `0xFF030303` to ensure the animation
+   blends into the background of the app.
+
+2. Add your new `.gif` file to the assets directory under
+   `assets/splash_effects`. Ensure the name follows the format
+   `splash_effect_$num.gif`. The number should be the next number after the
+   current largest number in the repository.
+
+3. Update the map `_effectDurations` in
+   [splash.dart](lib/pages/splash.dart) to include the number of the
+   new `.gif` as well as its estimated duration. The duration is used to
+   determine how long to display the splash animation at launch.
+
+## Generating localized strings and highlighted code segments
+
+To generate localized strings or highlighted code segments, make sure that you
+have [grinder](https://pub.dev/packages/grinder) installed. You can install it
+by getting the packages in `samples/gallery/`:
+```
+flutter pub get
+```
+
+To generate localized strings (see separate [README](lib/l10n/README.md)
+for more details):
+
+```
+flutter pub run grinder l10n
+```
+
+To generate code segments (see separate [README](tool/codeviewer_cli/README.md) for
+more details):
+```
+flutter pub run grinder update-code-segments
+```
+
+## Creating a new release (for Flutter org members)
+
+1. Bump the version number up in the `pubspec.yaml`. Use semantic versioning to determine 
+   which number to increment. For example `2.2.0+020200` should become `2.3.0+020300`.
+
+2. Create a tag on the `master` branch of this repo in the form of `gallery-v2.3`.
+	* `git tag gallery-v2.3`
+	* `git push --tags`
+
+3. Publish the web release (using the [peanut package](https://pub.dev/packages/peanut)).
+    * `flutter pub global activate peanut`
+    * `flutter pub global run peanut:peanut`
+    * `git push upstream gh-pages:gh-pages`
+        * `git update-ref refs/heads/gh-pages upstream/gh-pages` if you need to align with upstream.
+
+4. Publish the Android release (using the correct signing certificates).
+    * Create the app bundle with `flutter build appbundle`.
+    * Upload to the Play store console.
+    * Publish the Play store release.
+    * Create the APK with `flutter build apk` (this is for the Github release).
+
+5. Draft a release in Github from the tag you created, call the release `Flutter Gallery 2.3`
+    * Upload the Android APK from above.
+    * Create and upload the macOS build by running `flutter build macos` and zipping the 
+      app inside `build/macos/Build/Products/Release`.
+    * Optional: Create and upload the Linux/Windows builds.
+    * Publish the release.

analysis_options.yaml

@@ -0,0 +1,33 @@
+include: package:pedantic/analysis_options.1.8.0.yaml
+
+analyzer:
+  exclude:
+    - lib/l10n/messages_*.dart
+  strong-mode:
+    implicit-casts: false
+    implicit-dynamic: false
+
+linter:
+  rules:
+    - avoid_types_on_closure_parameters
+    - avoid_void_async
+    - await_only_futures
+    - camel_case_types
+    - cancel_subscriptions
+    - close_sinks
+    - constant_identifier_names
+    - control_flow_in_finally
+    - empty_statements
+    - hash_and_equals
+    - implementation_imports
+    - non_constant_identifier_names
+    - package_api_docs
+    - package_names
+    - package_prefixed_library_names
+    - test_types_in_equals
+    - throw_in_finally
+    - unnecessary_brace_in_string_interps
+    - unnecessary_getters_setters
+    - unnecessary_new
+    - unnecessary_statements
+    - directives_ordering

android/.gitignore

@@ -0,0 +1,12 @@
+gradle-wrapper.jar
+/.gradle
+/captures/
+/gradlew
+/gradlew.bat
+/local.properties
+GeneratedPluginRegistrant.java
+
+# Visual Studio Code related
+.classpath
+.project
+.settings/

android/app/build.gradle

@@ -0,0 +1,66 @@
+def localProperties = new Properties()
+def localPropertiesFile = rootProject.file('local.properties')
+if (localPropertiesFile.exists()) {
+    localPropertiesFile.withReader('UTF-8') { reader ->
+        localProperties.load(reader)
+    }
+}
+
+def flutterRoot = localProperties.getProperty('flutter.sdk')
+if (flutterRoot == null) {
+    throw new GradleException("Flutter SDK not found. Define location with flutter.sdk in the local.properties file.")
+}
+
+def flutterVersionCode = localProperties.getProperty('flutter.versionCode')
+if (flutterVersionCode == null) {
+    flutterVersionCode = '1'
+}
+
+def flutterVersionName = localProperties.getProperty('flutter.versionName')
+if (flutterVersionName == null) {
+    flutterVersionName = '1.0'
+}
+
+apply plugin: 'com.android.application'
+apply plugin: 'kotlin-android'
+apply from: "$flutterRoot/packages/flutter_tools/gradle/flutter.gradle"
+
+android {
+    compileSdkVersion 28
+
+    sourceSets {
+        main.java.srcDirs += 'src/main/kotlin'
+    }
+
+    lintOptions {
+        disable 'InvalidPackage'
+    }
+
+    defaultConfig {
+        applicationId "io.flutter.demo.gallery"
+        minSdkVersion 16
+        targetSdkVersion 28
+        versionCode flutterVersionCode.toInteger()
+        versionName flutterVersionName
+        testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
+    }
+
+    buildTypes {
+        release {
+            // TODO: Add your own signing config for the release build.
+            // Signing with the debug keys for now, so `flutter run --release` works.
+            signingConfig signingConfigs.debug
+        }
+    }
+}
+
+flutter {
+    source '../..'
+}
+
+dependencies {
+    implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk7:$kotlin_version"
+    testImplementation 'junit:junit:4.12'
+    androidTestImplementation 'androidx.test:runner:1.1.0'
+    androidTestImplementation 'androidx.test.espresso:espresso-core:3.1.0'
+}

android/app/src/debug/AndroidManifest.xml

@@ -0,0 +1,7 @@
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    package="io.flutter.demo.gallery">
+    <!-- Flutter needs it to communicate with the running application
+         to allow setting breakpoints, to provide hot reload, etc.
+    -->
+    <uses-permission android:name="android.permission.INTERNET"/>
+</manifest>

android/app/src/main/AndroidManifest.xml

@@ -0,0 +1,33 @@
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    package="io.flutter.demo.gallery">
+
+    <!-- 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. -->
+    <application
+        android:name="io.flutter.app.FlutterApplication"
+        android:label="Flutter Gallery"
+        android:icon="@mipmap/ic_launcher">
+        <activity
+            android:name=".MainActivity"
+            android:configChanges="orientation|keyboardHidden|keyboard|screenSize|locale|layoutDirection|fontScale|screenLayout|density|uiMode"
+            android:launchMode="singleTop"
+            android:theme="@style/LaunchTheme"
+            android:hardwareAccelerated="true"
+            android:windowSoftInputMode="adjustResize">
+            <!-- This keeps the window background of the activity showing
+                 until Flutter renders its first frame. It can be removed if
+                 there is no splash screen (such as the default splash screen
+                 defined in @style/LaunchTheme). -->
+            <meta-data
+                android:name="io.flutter.app.android.SplashScreenUntilFirstFrame"
+                android:value="true" />
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN"/>
+                <category android:name="android.intent.category.LAUNCHER"/>
+            </intent-filter>
+        </activity>
+    </application>
+</manifest>

android/app/src/main/kotlin/io/flutter/demo/gallery/MainActivity.kt

@@ -0,0 +1,13 @@
+package io.flutter.demo.gallery
+
+import android.os.Bundle
+
+import io.flutter.app.FlutterActivity
+import io.flutter.plugins.GeneratedPluginRegistrant
+
+class MainActivity: FlutterActivity() {
+  override fun onCreate(savedInstanceState: Bundle?) {
+    super.onCreate(savedInstanceState)
+    GeneratedPluginRegistrant.registerWith(this)
+  }
+}

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

@@ -0,0 +1,12 @@
+<?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="@color/backgroundColor" />
+
+    <!-- You can insert your own image assets here -->
+    <!-- <item>
+        <bitmap
+            android:gravity="center"
+            android:src="@mipmap/launch_image" />
+    </item> -->
+</layer-list>