feat: add foldable example (#269)

 # 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.
+# This file should be version controlled.
 
 version:
-  revision: 8cb266511897d79e6d7d60c08c0e425f4cdaf433
-  channel: master
+  revision: 4f9d92fbbdf072a70a70d2179a9f87392b94104c
+  channel: stable
 
 project_type: app
+
+# Tracks metadata for the flutter migrate command
+migration:
+  platforms:
+    - platform: root
+      create_revision: 4f9d92fbbdf072a70a70d2179a9f87392b94104c
+      base_revision: 4f9d92fbbdf072a70a70d2179a9f87392b94104c
+    - platform: android
+      create_revision: 4f9d92fbbdf072a70a70d2179a9f87392b94104c
+      base_revision: 4f9d92fbbdf072a70a70d2179a9f87392b94104c
+    - platform: ios
+      create_revision: 4f9d92fbbdf072a70a70d2179a9f87392b94104c
+      base_revision: 4f9d92fbbdf072a70a70d2179a9f87392b94104c
+    - platform: linux
+      create_revision: 4f9d92fbbdf072a70a70d2179a9f87392b94104c
+      base_revision: 4f9d92fbbdf072a70a70d2179a9f87392b94104c
+    - platform: macos
+      create_revision: 4f9d92fbbdf072a70a70d2179a9f87392b94104c
+      base_revision: 4f9d92fbbdf072a70a70d2179a9f87392b94104c
+    - platform: web
+      create_revision: 4f9d92fbbdf072a70a70d2179a9f87392b94104c
+      base_revision: 4f9d92fbbdf072a70a70d2179a9f87392b94104c
+    - platform: windows
+      create_revision: 4f9d92fbbdf072a70a70d2179a9f87392b94104c
+      base_revision: 4f9d92fbbdf072a70a70d2179a9f87392b94104c
+
+  # User provided section
+
+  # List of Local paths (relative to this file) that should be
+  # ignored by the migrate tool.
+  #
+  # Files that are not part of the templates will be ignored by default.
+  unmanaged_files:
+    - 'lib/main.dart'
+    - 'ios/Runner.xcodeproj/project.pbxproj'

@@ -9,3 +9,5 @@ GeneratedPluginRegistrant.java
 # Remember to never publicly share your keystore.
 # See https://flutter.dev/docs/deployment/android#reference-the-keystore-from-the-app
 key.properties
+**/*.keystore
+**/*.jks

@@ -26,21 +26,29 @@ apply plugin: 'kotlin-android'
 apply from: "$flutterRoot/packages/flutter_tools/gradle/flutter.gradle"
 
 android {
-    compileSdkVersion 29
+    compileSdkVersion flutter.compileSdkVersion
+    ndkVersion flutter.ndkVersion
 
-    sourceSets {
-        main.java.srcDirs += 'src/main/kotlin'
+    compileOptions {
+        sourceCompatibility JavaVersion.VERSION_1_8
+        targetCompatibility JavaVersion.VERSION_1_8
+    }
+
+    kotlinOptions {
+        jvmTarget = '1.8'
     }
 
-    lintOptions {
-        disable 'InvalidPackage'
+    sourceSets {
+        main.java.srcDirs += 'src/main/kotlin'
     }
 
     defaultConfig {
         // TODO: Specify your own unique Application ID (https://developer.android.com/studio/build/application-id.html).
-        applicationId "com.example.example"
-        minSdkVersion 16
-        targetSdkVersion 29
+        applicationId "jb.example.example"
+        // You can update the following values to match your application needs.
+        // For more information, see: https://docs.flutter.dev/deployment/android#reviewing-the-build-configuration.
+        minSdkVersion flutter.minSdkVersion
+        targetSdkVersion flutter.targetSdkVersion
         versionCode flutterVersionCode.toInteger()
         versionName flutterVersionName
     }

 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
-    package="com.example.example">
-    <!-- Flutter needs it to communicate with the running application
+    package="jb.example.example">
+    <!-- The INTERNET permission is required for development. Specifically,
+         the Flutter tool 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 xmlns:android="http://schemas.android.com/apk/res/android"
-    package="com.example.example">
+    package="jb.example.example">
    <application
         android:label="example"
+        android:name="${applicationName}"
         android:icon="@mipmap/ic_launcher">
         <activity
             android:name=".MainActivity"
+            android:exported="true"
             android:launchMode="singleTop"
             android:theme="@style/LaunchTheme"
             android:configChanges="orientation|keyboardHidden|keyboard|screenSize|smallestScreenSize|locale|layoutDirection|fontScale|screenLayout|density|uiMode"
@@ -18,15 +20,6 @@
               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"/>

-package com.example.example
+package jb.example.example
 
 import io.flutter.embedding.android.FlutterActivity
 

@@ -3,14 +3,14 @@
     <!-- 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">
         <!-- Show a splash screen on the activity. Automatically removed when
-             Flutter draws its first frame -->
+             the Flutter engine draws its first frame -->
         <item name="android:windowBackground">@drawable/launch_background</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>

@@ -3,14 +3,14 @@
     <!-- 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">
         <!-- Show a splash screen on the activity. Automatically removed when
-             Flutter draws its first frame -->
+             the Flutter engine draws its first frame -->
         <item name="android:windowBackground">@drawable/launch_background</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>

 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
-    package="com.example.example">
-    <!-- Flutter needs it to communicate with the running application
+    package="jb.example.example">
+    <!-- The INTERNET permission is required for development. Specifically,
+         the Flutter tool needs it to communicate with the running application
          to allow setting breakpoints, to provide hot reload, etc.
     -->
     <uses-permission android:name="android.permission.INTERNET"/>

 buildscript {
-    ext.kotlin_version = '1.3.50'
+    ext.kotlin_version = '1.6.10'
     repositories {
         google()
-        jcenter()
+        mavenCentral()
     }
 
     dependencies {
-        classpath 'com.android.tools.build:gradle:3.5.0'
+        classpath 'com.android.tools.build:gradle:7.1.2'
         classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
     }
 }
@@ -14,7 +14,7 @@ buildscript {
 allprojects {
     repositories {
         google()
-        jcenter()
+        mavenCentral()
     }
 }
 

-#Fri Jun 23 08:50:38 CEST 2017
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-5.6.2-all.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-7.4-all.zip

@@ -10,13 +10,18 @@ class FloatingModal extends StatelessWidget {
 
   @override
   Widget build(BuildContext context) {
-    return SafeArea(
-      minimum: const EdgeInsets.symmetric(horizontal: 20, vertical: 20),
-      child: Material(
-        color: backgroundColor,
-        clipBehavior: Clip.antiAlias,
-        borderRadius: BorderRadius.circular(12),
-        child: child,
+    // DisplayFeatureSubScreen allows to display the modal in just
+    // one sub-screen of a foldable device.
+    return DisplayFeatureSubScreen(
+      anchorPoint: Offset.infinite,
+      child: SafeArea(
+        minimum: const EdgeInsets.symmetric(horizontal: 20, vertical: 20),
+        child: Material(
+          color: backgroundColor,
+          clipBehavior: Clip.antiAlias,
+          borderRadius: BorderRadius.circular(12),
+          child: child,
+        ),
       ),
     );
   }

+import 'package:flutter/material.dart';
+import 'package:sheet/sheet.dart';
+
+class FoldableScreenFloatingSheet extends StatefulWidget {
+  @override
+  _FitSheetState createState() => _FitSheetState();
+}
+
+class _FitSheetState extends State<FoldableScreenFloatingSheet> {
+  final SheetController controller = SheetController();
+
+  @override
+  void initState() {
+    Future<void>.delayed(const Duration(milliseconds: 400), animateSheet);
+
+    super.initState();
+  }
+
+  void animateSheet() {
+    controller.relativeAnimateTo(1,
+        duration: const Duration(milliseconds: 400), curve: Curves.easeOut);
+  }
+
+  @override
+  void dispose() {
+    controller.dispose();
+    super.dispose();
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    return DisplayFeatureSubScreen(
+      anchorPoint: Offset.infinite,
+      child: Sheet.raw(
+        physics: const SnapSheetPhysics(
+          parent: BouncingSheetPhysics(overflowViewport: false),
+          stops: <double>[0, 1],
+        ),
+        padding: const EdgeInsets.all(20),
+        child: Container(
+          height: 200,
+          alignment: Alignment.topCenter,
+          child: Container(
+            height: 200,
+            width: double.infinity,
+            child: Material(
+              elevation: 1,
+              shape: RoundedRectangleBorder(
+                borderRadius: BorderRadius.circular(12),
+              ),
+              color: Colors.grey[900],
+            ),
+          ),
+        ),
+        controller: controller,
+      ),
+    );
+  }
+}

@@ -270,6 +270,14 @@ class RouteExamplePage extends StatelessWidget {
                       ),
                     ),
                     ListTile(
+                      title: const Text('Foldable Screen - Fit'),
+                      onTap: () => Navigator.of(context).push(
+                        FloatingSheetRoute<void>(
+                          builder: (BuildContext context) => const ModalFit(),
+                        ),
+                      ),
+                    ),
+                    ListTile(
                       title: const Text('Dialog Modal for tablet - Expanded'),
                       onTap: () => Navigator.of(context).push(
                         DialogSheetRoute<void>(

@@ -12,6 +12,7 @@ import 'examples/sheet/fit_resizable_sheet.dart';
 import 'examples/sheet/fit_sheet.dart';
 import 'examples/sheet/fit_sheet_snap.dart';
 import 'examples/sheet/floating_sheet.dart';
+import 'examples/sheet/fold_screen_sheet.dart';
 import 'examples/sheet/resizable_sheet.dart';
 import 'examples/sheet/scrollable_sheet.dart';
 import 'examples/sheet/scrollable_snap_sheet.dart';
@@ -55,6 +56,7 @@ class SheetExamplesPage extends StatelessWidget {
             ExampleTile.sheet(
                 'Fit, Resizable and Bouncing sheet', FitResizableSheet()),
             ExampleTile.sheet('Textfield sheet', TextFieldSheet()),
+            ExampleTile.sheet('Foldable screen', FoldableScreenFloatingSheet()),
             const ExampleTile(
                 title: 'Customizable sheet', page: SheetConfigurationPage()),
             const SectionTitle('SHOWCASE'),