Android原生项目集成Flutter解决方案

在原生项目根目录执行命令
 
flutter create -t module --org {package_name} {module_name}
 
// 此处 module_name 的命令遵循 Android 子 module 的命名即可。不能有中划线。
 
// 比如, 
 
flutter create -t module --org com.engineer.mini.flutter flutter_sub
 
// 此处 module_name 的命令遵循 Android 子 module 的命名即可。不能有中划线。
 
// 比如, 
 
flutter create -t module --org com.engineer.mini.flutter flutter_sub
</pre>

./gradlew properties

------------------------------------------------------------
Root project
------------------------------------------------------------
 
allprojects: [root project 'MiniApp', project ':app', project ':thirdlib']
android.agp.version.check.performed: true
android.enableJetifier: true
android.enableR8: true
android.enableR8.libraries: true
android.useAndroidX: true
buildDir: /Users/username/Documents/mygithub/MinApp/build
buildFile: /Users/username/Documents/mygithub/MinApp/build.gradle
projectDir: /Users/username/Documents/mygithub/MinApp
rootDir: /Users/username/Documents/mygithub/MinApp
rootProject: root project 'MiniApp'

./gradlew :app:properties

buildDir: /Users/username/Documents/mygithub/MinApp/app/build
buildFile: /Users/username/Documents/mygithub/MinApp/app/build.gradle

// Include the host app project.
include ':app'                                    // assumed existing content
setBinding(new Binding([gradle: this]))                                // new
evaluate(new File(                                                     // new
  settingsDir.parentFile,                                              // new
  'my_flutter/.android/include_flutter.groovy'                         // new
))                                                                     // new

println "settings.dir=" + settingsDir
println "settings.dir.parent=" + settingsDir.parent

settings.dir=/Users/username/Documents/mygithub/MinApp
settings.dir.parent=/Users/username/Documents/mygithub

setBinding(new Binding([gradle: this]))
evaluate(new File(settingsDir, 'sub_flutter/.android/include_flutter.groovy'))
include ':sub_flutter'
#### 关于 include_flutter.groovy

def scriptFile = getClass().protectionDomain.codeSource.location.toURI()
def flutterProjectRoot = new File(scriptFile).parentFile.parentFile
 
gradle.include ":flutter"
gradle.project(":flutter").projectDir = new File(flutterProjectRoot, ".android/Flutter")
 
def localPropertiesFile = new File(flutterProjectRoot, ".android/local.properties")
def properties = new Properties()
 
assert localPropertiesFile.exists(), ":exclamation:️The Flutter module doesn't have a `$localPropertiesFile` file." +
                                     "\nYou must run `flutter pub get` in `$flutterProjectRoot`."
localPropertiesFile.withReader("UTF-8") { reader -> properties.load(reader) }
 
def flutterSdkPath = properties.getProperty("flutter.sdk")
assert flutterSdkPath != null, "flutter.sdk not set in local.properties"
gradle.apply from: "$flutterSdkPath/packages/flutter_tools/gradle/module_plugin_loader.gradle"

implementation project(':flutter')