apply plugin: 'com.android.library' android { compileSdkVersion 28 defaultConfig { minSdkVersion 19 targetSdkVersion 28 versionCode 1 versionName "1.0" } buildTypes { release { minifyEnabled false proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro' } } } dependencies { api fileTree(dir: 'libs', include: ['*.jar']) api 'com.android.support:appcompat-v7:28.0.0' testApi 'junit:junit:4.12' }