gradle plugin baseExtension getCompileSdkVersion为null问题

it2026-04-13  2

自定义了一个gradle插件,在里面用如下代码获取compileSdkVersion

val plugin = project.plugins.getPlugin(AppPlugin::class.java) val sdkDirectory = plugin.baseExtension.sdkDirectory println("androidExtension compileSdkVersion:${plugin.baseExtension.compileSdkVersion}") val androidJarPath = "platforms/${plugin.baseExtension.compileSdkVersion}/android.jar"

发现plugin.baseExtension.compileSdkVersion的值为null,然后换一种方式获取

val androidExtension = project.extensions.getByName("android") as BaseExtension val androidJarPath = "platforms/${androidExtension.compileSdkVersion}/android.jar"

一样为null,查来查去不知道为什么

后来发现是apply plugin: 的地方不对,必须下面代码之后,apply,因为的逻辑是在apply里面做的

android { compileSdkVersion 29 buildToolsVersion "29.0.2" defaultConfig { minSdkVersion 15 targetSdkVersion 29 versionCode 1 versionName "1.0" consumerProguardFiles 'consumer-rules.pro' } buildTypes { release { minifyEnabled false proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro' } } }

因为gradle文件代码执行自上而下,必须先执行了设置compileSdkVersion,在apply插件,获取的值才没问题

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