project.logger.error("One or more plugins require a higher Android SDK version.\nFix this issue by adding the following to ${project.projectDir}${File.separator}build.gradle:\nandroid {\n compileSdkVersion ${maxPluginCompileSdkVersion}\n ...\n}\n")
project.logger.error("One or more plugins require a higher Android SDK version.\nFix this issue by adding the following to ${project.projectDir}${File.separator}build.gradle:\nandroid {\n compileSdkVersion ${maxPluginCompileSdkVersion}\n ...\n}\n")
}
}
if(maxPluginNdkVersion!=projectNdkVersion){
project.logger.error("One or more plugins require a higher Android NDK version.\nFix this issue by adding the following to ${project.projectDir}${File.separator}build.gradle:\nandroid {\n ndkVersion ${maxPluginNdkVersion}\n ...\n}\n")
}
}
}
}
}
}
}
...
@@ -963,7 +1009,7 @@ class FlutterPlugin implements Plugin<Project> {
...
@@ -963,7 +1009,7 @@ class FlutterPlugin implements Plugin<Project> {
}
}
}
}
configurePlugins()
configurePlugins()
detectLowCompileSdkVersion()
detectLowCompileSdkVersionOrNdkVersion()
return
return
}
}
// Flutter host module project (Add-to-app).
// Flutter host module project (Add-to-app).
...
@@ -1015,7 +1061,7 @@ class FlutterPlugin implements Plugin<Project> {
...
@@ -1015,7 +1061,7 @@ class FlutterPlugin implements Plugin<Project> {
@@ -15,6 +15,6 @@ samples, guidance on mobile development, and a full API reference.
...
@@ -15,6 +15,6 @@ samples, guidance on mobile development, and a full API reference.
{{#no_platforms}}
{{#no_platforms}}
The plugin project was generated without specifying the `--platforms` flag, no platforms are currently supported.
The plugin project was generated without specifying the `--platforms` flag, no platforms are currently supported.
To add platforms, run `flutter create -t plugin --platforms <platforms> .` under the same
To add platforms, run `flutter create -t plugin --platforms <platforms> .` in this directory.
directory. You can also find a detailed instruction on how to add platforms in the `pubspec.yaml` at https://flutter.dev/docs/development/packages-and-plugins/developing-packages#plugin-platforms.
You can also find a detailed instruction on how to add platforms in the `pubspec.yaml` at https://flutter.dev/docs/development/packages-and-plugins/developing-packages#plugin-platforms.
for building and bundling the native code library with the platform application.
## Buidling and bundling native code
The `pubspec.yaml` specifies FFI plugins as follows:
```yaml
plugin:
platforms:
some_platform:
ffiPlugin: true
```
This configuration invokes the native build for the various target platforms
and bundles the binaries in Flutter applications using these FFI plugins.
This can be combined with dartPluginClass, such as when FFI is used for the
implementation of one platform in a federated plugin:
```yaml
plugin:
implements: some_other_plugin
platforms:
some_platform:
dartPluginClass: SomeClass
ffiPlugin: true
```
A plugin can have both FFI and method channels:
```yaml
plugin:
platforms:
some_platform:
pluginClass: SomeName
ffiPlugin: true
```
The native build systems that are invoked by FFI (and method channel) plugins are:
* For Android: Gradle, which invokes the Android NDK for native builds.
* See the documentation in android/build.gradle.
* For iOS and MacOS: Xcode, via CocoaPods.
* See the documentation in ios/{{projectName}}.podspec.
* See the documentation in macos/{{projectName}}.podspec.
* For Linux and Windows: CMake.
* See the documentation in linux/CMakeLists.txt.
* See the documentation in windows/CMakeLists.txt.
## Binding to native code
To use the native code, bindings in Dart are needed.
To avoid writing these by hand, they are generated from the header file
(`src/{{projectName}}.h`) by `package:ffigen`.
Regenerate the bindings by running `flutter pub run ffigen --config ffigen.yaml`.
## Invoking native code
Very short-running native functions can be directly invoked from any isolate.
For example, see `sum` in `lib/{{projectName}}.dart`.
Longer-running functions should be invoked on a helper isolate to avoid
dropping frames in Flutter applications.
For example, see `sumAsync` in `lib/{{projectName}}.dart`.
## Flutter help
For help getting started with Flutter, view our
[online documentation](https://flutter.dev/docs), which offers tutorials,
samples, guidance on mobile development, and a full API reference.
{{#no_platforms}}
The plugin project was generated without specifying the `--platforms` flag, so no platforms are currently supported.
To add platforms, run `flutter create -t plugin_ffi --platforms <platforms> .` in this directory.
You can also find a detailed instruction on how to add platforms in the `pubspec.yaml` at https://flutter.dev/docs/development/packages-and-plugins/developing-packages#plugin-platforms.
