apply plugin: 'com.android.library' android { compileSdkVersion 28 buildToolsVersion '28.0.3' defaultConfig { minSdkVersion 9 targetSdkVersion 28 versionCode 1 versionName "1.0" } buildTypes { release { minifyEnabled false proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro' } } } dependencies { implementation fileTree(include: ['*.jar'], dir: 'libs') testImplementation 'junit:junit:4.12' }