Flutter/Android项目升级到AGP 8.+

安装最新版Android Studio使用AGP Upgrade Assistant迁移到AGP 8.0+，全自动更改当前模块，一步到位
在app模块下 build.gradle 添加 namespace，正常情况下升级助理会自动处理好这一步
```
android {
    namespace '你的包名'
    // ...
}
```

到android目录下的根 build.gradle 下找到下面的内容，替换成下下面的内容。目的是为了把不兼容AGP 8.+ 的模块手动添加 namesapce，还带一些配置更改，可按需修改成自己需要的

subprojects {
    project.buildDir = "${rootProject.buildDir}/${project.name}"
}

 subprojects {
     project.buildDir = "${rootProject.buildDir}/${project.name}"
     afterEvaluate {
         if (it.hasProperty('android')) {
             if (it.android.namespace == null) {
                 def manifest = new XmlSlurper().parse(file(it.android.sourceSets.main.manifest.srcFile))
                 def packageName = manifest.@package.text()
                 println("Setting ${packageName} as android namespace")
                 android.namespace = packageName
             }
             def javaVersion = JavaVersion.VERSION_11
             android {
                 def androidApiVersion = 33
                 def oldJavaVersion = compileOptions.sourceCompatibility
                 def oldAndroidApiVersion = compileSdkVersion
                 compileSdkVersion androidApiVersion
                 defaultConfig {
                     targetSdkVersion androidApiVersion
                 }
                 compileOptions {
                     sourceCompatibility javaVersion
                     targetCompatibility javaVersion
                 }
                 tasks.withType(org.jetbrains.kotlin.gradle.tasks.KotlinCompile).configureEach {
                     kotlinOptions {
                         jvmTarget = javaVersion.toString()
                     }
                 }
                 println("Setting java version from $oldJavaVersion to $javaVersion")
                 println("Setting compileSdkVersion and targetSdkVersion from ${oldAndroidApiVersion.toString().split("-").last()} to $androidApiVersion")
             }
             println("========================================")
         }
     }
 }

迁移完成，可以跑了

两分钟将你的Flutter/Android项目升级到AGP 8.+

Flutter/Android项目升级到AGP 8.+

参考资料：