packages/path_provider/android/build.gradle

def PLUGIN = "path_provider";
def ANDROIDX_WARNING = "flutterPluginsAndroidXWarning";
gradle.buildFinished { buildResult ->
    if (buildResult.failure && !rootProject.ext.has(ANDROIDX_WARNING)) {
        println '         *********************************************************'
        println 'WARNING: This version of ' + PLUGIN + ' will break your Android build if it or its dependencies aren\'t compatible with AndroidX.'
        println '         See https://goo.gl/CP92wY for more information on the problem and how to fix it.'
        println '         This warning prints for all Android build failures. The real root cause of the error may be unrelated.'
        println '         *********************************************************'
        rootProject.ext.set(ANDROIDX_WARNING, true);
    }
}

group 'io.flutter.plugins.pathprovider'
version '1.0-SNAPSHOT'

buildscript {
    repositories {
        google()
        jcenter()
    }

    dependencies {
        classpath 'com.android.tools.build:gradle:3.3.0'
    }
}

rootProject.allprojects {
    repositories {
        google()
        jcenter()
    }
}

apply plugin: 'com.android.library'

android {
    compileSdkVersion 28

    defaultConfig {
        minSdkVersion 16
        testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
    }
    lintOptions {
        disable 'InvalidPackage'
    }
}

dependencies {
    implementation 'androidx.annotation:annotation:1.1.0'
    testImplementation 'junit:junit:4.12'
}