Fixes

android/app/src/main/AndroidManifest.xml

@@ -6,9 +6,12 @@
          additional functionality it is fine to subclass or reimplement
          FlutterApplication and put your custom class here. -->
     <application
-        android:name="io.flutter.app.FlutterApplication"
+        android:name="${applicationName}"
         android:label="prod_app2"
         android:icon="@mipmap/ic_launcher">
+        <meta-data
+    android:name="flutterEmbedding"
+    android:value="2" />
         <activity
             android:name=".MainActivity"
             android:launchMode="singleTop"
@@ -21,7 +24,13 @@
                  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:name="io.flutter.embedding.android.SplashScreenDrawable"
+                android:resource="@drawable/launch_background" />
+
+            <meta-data
+                android:name="io.flutter.embedding.android.NormalTheme"
+                android:resource="@style/NormalTheme" />
+            <meta-data
                 android:value="true" />
             <intent-filter>
                 <action android:name="android.intent.action.MAIN"/>

android/app/src/main/kotlin/com/imaginecup/prod_app2/MainActivity.kt

@@ -1,12 +1,6 @@
 package com.imaginecup.prod_app2
 
-import android.os.Bundle
-import io.flutter.app.FlutterActivity
-import io.flutter.plugins.GeneratedPluginRegistrant
+import io.flutter.embedding.android.FlutterActivity;
 
 class MainActivity: FlutterActivity() {
-    override fun onCreate(savedInstanceState: Bundle?) {
-        super.onCreate(savedInstanceState)
-        GeneratedPluginRegistrant.registerWith(this)
-    }
 }

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

@@ -1,6 +1,8 @@
 <?xml version="1.0" encoding="utf-8"?>
 <resources>
     <style name="LaunchTheme" parent="@android:style/Theme.Black.NoTitleBar">
+        <item name="android:windowBackground">@drawable/[your_launch_drawable_here]</item>
+    </style>
         <!-- Show a splash screen on the activity. Automatically removed when
              Flutter draws its first frame -->
         <item name="android:windowBackground">@drawable/launch_background</item>

ios/Flutter/AppFrameworkInfo.plist

@@ -21,6 +21,6 @@
   <key>CFBundleVersion</key>
   <string>1.0</string>
   <key>MinimumOSVersion</key>
-  <string>8.0</string>
+  <string>11.0</string>
 </dict>
 </plist>

ios/Flutter/Debug.xcconfig

@@ -1 +1,2 @@
+#include? "Pods/Target Support Files/Pods-Runner/Pods-Runner.debug.xcconfig"
 #include "Generated.xcconfig"

ios/Flutter/Release.xcconfig

@@ -1 +1,2 @@
+#include? "Pods/Target Support Files/Pods-Runner/Pods-Runner.release.xcconfig"
 #include "Generated.xcconfig"

ios/Podfile

@@ -0,0 +1,44 @@
+# Uncomment this line to define a global platform for your project
+platform :ios, '11.0'
+
+# CocoaPods analytics sends network stats synchronously affecting flutter build latency.
+ENV['COCOAPODS_DISABLE_STATS'] = 'true'
+
+project 'Runner', {
+  'Debug' => :debug,
+  'Profile' => :release,
+  'Release' => :release,
+}
+
+def flutter_root
+  generated_xcode_build_settings_path = File.expand_path(File.join('..', 'Flutter', 'Generated.xcconfig'), __FILE__)
+  unless File.exist?(generated_xcode_build_settings_path)
+    raise "#{generated_xcode_build_settings_path} must exist. If you're running pod install manually, make sure flutter pub get is executed first"
+  end
+
+  File.foreach(generated_xcode_build_settings_path) do |line|
+    matches = line.match(/FLUTTER_ROOT\=(.*)/)
+    return matches[1].strip if matches
+  end
+  raise "FLUTTER_ROOT not found in #{generated_xcode_build_settings_path}. Try deleting Generated.xcconfig, then run flutter pub get"
+end
+
+require File.expand_path(File.join('packages', 'flutter_tools', 'bin', 'podhelper'), flutter_root)
+
+flutter_ios_podfile_setup
+
+target 'Runner' do
+  use_frameworks!
+  use_modular_headers!
+
+  flutter_install_all_ios_pods File.dirname(File.realpath(__FILE__))
+  # target 'RunnerTests' do
+  #   inherit! :search_paths
+  # end
+end
+
+post_install do |installer|
+  installer.pods_project.targets.each do |target|
+    flutter_additional_ios_build_settings(target)
+  end
+end

ios/Podfile.lock

@@ -0,0 +1,53 @@
+PODS:
+  - AppAuth (1.6.2):
+    - AppAuth/Core (= 1.6.2)
+    - AppAuth/ExternalUserAgent (= 1.6.2)
+  - AppAuth/Core (1.6.2)
+  - AppAuth/ExternalUserAgent (1.6.2):
+    - AppAuth/Core
+  - Flutter (1.0.0)
+  - flutter_appauth (0.0.1):
+    - AppAuth (= 1.6.2)
+    - Flutter
+  - flutter_secure_storage (6.0.0):
+    - Flutter
+  - shared_preferences_foundation (0.0.1):
+    - Flutter
+    - FlutterMacOS
+  - webview_flutter_wkwebview (0.0.1):
+    - Flutter
+
+DEPENDENCIES:
+  - Flutter (from `Flutter`)
+  - flutter_appauth (from `.symlinks/plugins/flutter_appauth/ios`)
+  - flutter_secure_storage (from `.symlinks/plugins/flutter_secure_storage/ios`)
+  - shared_preferences_foundation (from `.symlinks/plugins/shared_preferences_foundation/darwin`)
+  - webview_flutter_wkwebview (from `.symlinks/plugins/webview_flutter_wkwebview/ios`)
+
+SPEC REPOS:
+  trunk:
+    - AppAuth
+
+EXTERNAL SOURCES:
+  Flutter:
+    :path: Flutter
+  flutter_appauth:
+    :path: ".symlinks/plugins/flutter_appauth/ios"
+  flutter_secure_storage:
+    :path: ".symlinks/plugins/flutter_secure_storage/ios"
+  shared_preferences_foundation:
+    :path: ".symlinks/plugins/shared_preferences_foundation/darwin"
+  webview_flutter_wkwebview:
+    :path: ".symlinks/plugins/webview_flutter_wkwebview/ios"
+
+SPEC CHECKSUMS:
+  AppAuth: 3bb1d1cd9340bd09f5ed189fb00b1cc28e1e8570
+  Flutter: f04841e97a9d0b0a8025694d0796dd46242b2854
+  flutter_appauth: cf9b928962105b2a64a9802585d1c8adaf3e0f46
+  flutter_secure_storage: 23fc622d89d073675f2eaa109381aefbcf5a49be
+  shared_preferences_foundation: 5b919d13b803cadd15ed2dc053125c68730e5126
+  webview_flutter_wkwebview: 2e2d318f21a5e036e2c3f26171342e95908bd60a
+
+PODFILE CHECKSUM: f567b6369f8842e77ccf6611a4baf3e2181f3f05
+
+COCOAPODS: 1.12.1