apply plugin: 'com.android.application'
// Add this line
apply plugin: 'com.google.gms.google-services'
dependencies {
// add the Firebase SDK for Google Analytics
implementation 'com.google.firebase:firebase-analytics:17.4.1'
// add SDKs for any other desired Firebase products
// https://firebase.google.com/docs/android/setup#available-libraries
}
충전가능한 제품인지 문의드립니다. 
미배송상품이 있습니다