Android Firebase Google帳號登入

• 文章目錄
  
  • 導入Firebase專案
    
  • 新增SHA-1到Firebase
    
  • 導入Google Login
    
  • Google Login
    
  • Google Login Callback(信箱,大頭照,名稱)
    
  • 登出Google帳號
    
  • 取得上次登入的Google帳號
    
  • 效果展示

1.導入Firebase專案

https://badgameshow.com/fly/firebase-authentication/fly/firebase/

2.新增SHA-1到Firebase

專案設定>SHA 憑證指紋>新增指紋

取得指紋sigingReport

3.導入Google Login

implementation 'com.google.android.gms:play-services-auth:19.0.0'

4.Google Login

private val GOOGLE_SIGN_IN_REQUEST = 40

val gso = GoogleSignInOptions.Builder(GoogleSignInOptions.DEFAULT_SIGN_IN)
    .requestIdToken(getString(R.string.default_web_client_id))
    .requestEmail()
    .build()

val client = GoogleSignIn.getClient(requireContext(), gso)
startActivityForResult(client.signInIntent, GOOGLE_SIGN_IN_REQUEST)

5.Google Login Callback(信箱,大頭照,名稱)

override fun onActivityResult(requestCode: Int, resultCode: Int, data: Intent?) {
    super.onActivityResult(requestCode, resultCode, data)

    if (requestCode == GOOGLE_SIGN_IN_REQUEST && resultCode == RESULT_OK) {
        //獲取帳戶
        val account = GoogleSignIn.getSignedInAccountFromIntent(data).getResult(ApiException::class.java)

        //信箱
        val email = account.email
        //名稱
        val displayName = acccount.displayName
        //大頭照
        val photoUrl = account.photoUrl
        val credential = GoogleAuthProvider.getCredential(account?.idToken, null)

        //將資料送給Firebase紀錄
        FirebaseAuth.getInstance()
            .signInWithCredential(credential)
    }
}

6.登出Google帳號

val gso = GoogleSignInOptions.Builder(GoogleSignInOptions.DEFAULT_SIGN_IN)
            .requestIdToken(getString(R.string.default_web_client_id))
            .requestEmail()
            .build()

val client = GoogleSignIn.getClient(requireContext(), gso)
client.signOut()

7.取得上次登入的Google帳號

GoogleSignIn.getLastSignedInAccount(this)

8.效果展示