问题：我在试着新建一个flutter插件项目后，去写android代码时发现找不到flutter相关的类

报错如下

去依赖里看看确实没有

依赖库

后来各种百度，Google终于找到了解决方案，原来是新建项目没有默认把到依赖进去

分两步：

1.local.properties文件里配置flutter_sdk

local

2.build.gradle文件里添加依赖库

依赖

//获取local.properties配置文件

def localProperties = new Properties()

def localPropertiesFile = rootProject.file('local.properties')

if (localPropertiesFile.exists()) {

    localPropertiesFile.withReader('UTF-8') {

        reader -> localProperties.load(reader)

    }

    }

//获取flutter的sdk路径

def flutterRoot = localProperties.getProperty('flutter.sdk')

if (flutterRoot == null) {

    throw new GradleException("Flutter SDK not found. Define location with flutter.sdk in the local.properties file.")

    }

dependencies {

implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk7:$kotlin_version"

compileOnly files("$flutterRoot/bin/cache/artifacts/engine/android-arm/flutter.jar")

compileOnly 'androidx.annotation:annotation:1.1.0'

}