flutter_app_functions 0.0.9

Flutter bridge for Android App Functions. Register typed Dart functions that Android agents such as Gemini can discover and invoke on-device.

0.0.9

• I have updated alpha 0.0.9 in kotlin.

0.0.7

• Example: replaced the toy sample with a realistic productivity app that exposes AppFunctions as on-device MCP-style tools (createTask, addItemsToShoppingList, completeTask, and summarizeToday).
• Example: added a local AI caller simulation that turns prompts into function ids and JSON parameters, then invokes the same Dart handlers that Android AppFunctions callers use through the bridge.
• Example README: documented that real apps expose local AppFunctions to Android and do not connect directly to Gemini just to make tools discoverable.

0.0.6

• README: removed hard-coded package version snippets and switched install instructions to flutter pub add flutter_app_functions, so future releases do not leave stale README version text behind.
• README: clarified that each host app must create its own Android MyApplication class extending FlutterAppFunctionsApplication and point <application android:name> at it.

0.0.5

• Fixed real-app integration failure where Gradle could not resolve the com.google.devtools.ksp plugin from the published package. The plugin's Android module now applies KSP with an explicit 2.3.7 version.
• Fixed host app compilation when extending FlutterAppFunctionsApplication by exposing the AndroidX AppFunctions API artifacts transitively.
• Added a Kotlin unit test that installs a coroutine test main dispatcher and verifies AppFunctionsBridge.executeAppFunction dispatches to the Flutter method channel successfully.
• README: updated install/version text and clarified that host apps do not need to declare KSP solely to consume flutter_app_functions.

0.0.4

• Added .github/workflows/publish.yml — pushing a vX.Y.Z tag now auto-publishes the package to pub.dev via OpenID Connect (no PUB_CREDENTIALS secret is required). The workflow runs flutter analyze and flutter test before publishing; Kotlin tests are skipped because they need an Android SDK and the alpha08 KSP processor only completes inside a real build.
• README: added a maintainer-only "Publishing releases" section that documents the one-time pub.dev OIDC setup, the version-bump-and-tag flow, and how to re-publish by deleting and re-pushing the tag. The pub.dev form's tag pattern uses {{version}} substitution (not a regex), so the form field is v{{version}} — the matching GitHub-side regex in the workflow's on.push.tags is independent.

0.0.3

• Added AppFunctionPlatformNotSupportedException (extends UnsupportedError). The plugin now fails fast on iOS, macOS, Linux, Windows, and Web before any native code is touched.
• FlutterAppFunctions.register, registerAll, invoke, and getPlatformVersion now throw AppFunctionPlatformNotSupportedException when defaultTargetPlatform != android. Local-only operations (unregister, unregisterAll, ensureInitialized, registry getters) remain no-ops on any platform.
• The exception's platform field carries the offending platform name (e.g. "iOS"); the message links to developer.android.com/ai/appfunctions.
• README: added the new exception to the Errors table and made the "Android only" limitation explicit.

0.0.2

• Rewrote the plugin as a faithful wrapper of the Android App Functions API.
• The Kotlin side now exposes a single @AppFunction executeAppFunction entry point that dispatches by functionId to a Dart-registered handler.
• Replaced the single registerToolHandler Dart API with a typed, multi-function API:
  • FlutterAppFunctions.instance.register(AppFunctionDefinition(...)) / unregister / unregisterAll
  • AppFunctionParameter (string / int64 / double / bool / stringList, optional, enum-constrained)
  • AppFunctionReturnType (voidType / string / int64 / double / boolean / stringList)
  • AppFunctionContext (per-call functionId + validated parameters)
• Added a typed exception hierarchy mirroring androidx.appfunctions.AppFunction*Exception 1:1:
  • AppFunctionException, AppFunctionInvalidArgumentException, AppFunctionElementNotFoundException, AppFunctionFunctionNotFoundException, AppFunctionNotSupportedException, AppFunctionPermissionRequiredException, AppFunctionDisabledException, AppFunctionAppUnknownException.
  • The Kotlin bridge now dispatches by functionId over a single parametersJson: String / result String wire channel; typed exceptions are wrapped as PlatformException on the way out and mapped back to their androidx.appfunctions subclass on the way in.
• Added a FlutterAppFunctionsApplication base class that host apps extend to register the bridge with the AppFunctions runtime.
• Plugin manifest now contributes the appfunctions <service>, the xmlns:appfn namespace, and a res/xml/app_metadata.xml entry that points at user-overridable strings.
• Gradle: added ksp { arg("appfunctions:aggregateAppFunctions", "true") } so the KSP processor aggregates this module's @AppFunctions with the host app's.
• Tests: expanded the Dart flutter_app_functions_test.dart and flutter_app_functions_method_channel_test.dart suites, and updated the example integration test. The Kotlin bridge's exception mapping is exercised end-to-end by the integration test (alpha08 AppFunction*Exception subclasses cannot be constructed in plain JVM unit tests because their constructors touch android.os.Bundle.EMPTY).
• Example: registered four sample functions (createTask, countActiveTasks, searchContacts, markAllTasksDone) demonstrating typed parameters, typed returns, optional parameters, and a typed error.
• README: rewrote to mirror developer.android.com/ai/appfunctions structure.

0.0.1

• Initial release with Android App Functions support.
• Added a Dart tool-handler bridge through MethodChannel.
• Included an example app and Android unit tests.