Revised the gitignore based on the latest gi templates.

.gitignore

@@ -1,37 +1,104 @@
-.DS_Store
-.atom/
-.idea/
-.vscode/
+# Additions to generated gitignore...
+# Skip pubspec.lock because this is a library, not an application.
+**/pubspec.lock
+# The code coverage folder is like a build result.
+coverage/
+
+# Created by https://www.toptal.com/developers/gitignore/api/code,flutter,macos
+# Edit at https://www.toptal.com/developers/gitignore?templates=code,flutter,macos
 
+### Code ###
+.vscode/*
+!.vscode/settings.json
+!.vscode/tasks.json
+!.vscode/launch.json
+!.vscode/extensions.json
+*.code-workspace
+
+### Flutter ###
+# Flutter/Dart/Pub related
+**/doc/api/
+.dart_tool/
+.flutter-plugins
+.flutter-plugins-dependencies
 .packages
+.pub-cache/
 .pub/
-.dart_tool/
-pubspec.lock
-example/pubspec.lock
-flutter_export_environment.sh
-
-Podfile
-Podfile.lock
-Pods/
-.symlinks/
-**/Flutter/App.framework/
-**/Flutter/Flutter.framework/
-**/Flutter/Generated.xcconfig
-**/Flutter/flutter_export_environment.sh
-**/Flutter/flutter_assets/
-ServiceDefinitions.json
-xcuserdata/
-coverage
-
-local.properties
-.gradle/
-gradlew
-gradlew.bat
-gradle-wrapper.jar
-*.iml
-
-GeneratedPluginRegistrant.h
-GeneratedPluginRegistrant.m
-GeneratedPluginRegistrant.java
 build/
-.flutter-plugins
+lib/generated_plugin_registrant.dart
+
+# Android related
+**/android/**/gradle-wrapper.jar
+**/android/.gradle
+**/android/captures/
+**/android/gradlew
+**/android/gradlew.bat
+**/android/key.properties
+**/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/.last_build_id
+**/ios/Flutter/App.framework
+**/ios/Flutter/Flutter.framework
+**/ios/Flutter/Flutter.podspec
+**/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.*
+
+# 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
+
+### macOS ###
+# General
+.DS_Store
+.AppleDouble
+.LSOverride
+
+# Icon must end with two \r
+Icon
+
+# Thumbnails
+._*
+
+# Files that might appear in the root of a volume
+.DocumentRevisions-V100
+.fseventsd
+.Spotlight-V100
+.TemporaryItems
+.Trashes
+.VolumeIcon.icns
+.com.apple.timemachine.donotpresent
+
+# Directories potentially created on remote AFP share
+.AppleDB
+.AppleDesktop
+Network Trash Folder
+Temporary Items
+.apdisk
+
+# End of https://www.toptal.com/developers/gitignore/api/code,flutter,macos