[Android Studio] 안드로이드 스튜디오 Java firebase DB 연동

https://console.firebase.google.com/

로그인 - Google 계정

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• 로그인하고 프로젝트 생성 후 google-service.json 파일을 얻는다

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SHA-1 받는 법

gradle signingReport

입력 후 받는다.

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• 그림과 같은 파일위치(모듈 루트)에 넣는다.

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• build.gradle(Project)

buildscript {
  repositories {
    // Make sure that you have the following two repositories
    google()  // Google's Maven repository

    mavenCentral()  // Maven Central repository

  }
  dependencies {
    ...
    // Add the dependency for the Google services Gradle plugin
    classpath 'com.google.gms:google-services:4.3.13'

  }
}

allprojects {
  ...
  repositories {
    // Make sure that you have the following two repositories
    google()  // Google's Maven repository

    mavenCentral()  // Maven Central repository

  }
}

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• build.gradle(Module)

plugins {
  id 'com.android.application'

  // Add the Google services Gradle plugin
  id 'com.google.gms.google-services'

  ...
}

dependencies {
  // Import the Firebase BoM
  implementation platform('com.google.firebase:firebase-bom:30.4.1')


  // TODO: Add the dependencies for Firebase products you want to use
  // When using the BoM, don't specify versions in Firebase dependencies
  implementation 'com.google.firebase:firebase-analytics'


  // Add the dependencies for any other desired Firebase products
  // https://firebase.google.com/docs/android/setup#available-libraries