我正在创建一个具有Google和Facebook身份验证的用户登录页面，并且遵循从Firebase找到的所有文档，当我创建Google Login时，一切正常，但是当我添加Facebook登录时，它仅显示进度栏和什么都不做。希望可以有人帮帮我。我不确定是否是因为我没有正确处理“ onActivityResult”。
firebaseAuth=FirebaseAuth.getInstance()
callbackManager = CallbackManager.Factory.create()
login_button_facebook.setReadPermissions("email")
//var btnLoginFacebbok = findViewById<Button>(R.id.login_button_facebook)
login_button_facebook.setOnClickListener({
SignInFacebook()
})
}
private fun SignInFacebook() {
login_button_facebook.registerCallback(callbackManager, object :FacebookCallback<LoginResult>{
override fun onSuccess(result: LoginResult?) {
if (result != null) {
handleFacebookAccessToken(result.accessToken)
}
}
override fun onCancel() {
TODO("not implemented") //To change body of created functions use File | Settings | File Templates.
}
override fun onError(error: FacebookException?) {
}
})
}
private fun handleFacebookAccessToken(accessToken: AccessToken?) {
Log.d(String.toString(), "handleFacebookAccessToken:" + accessToken)
//obtener credenciales
val credential=FacebookAuthProvider.getCredential(accessToken!!.token)
firebaseAuth!!.signInWithCredential(credential!!)
.addOnSuccessListener(this) {result->
val logged_Email= result.user.email
// val logged_Activity=Intent(this@MainActivity, WelcomeUser::class.java)
Toast.makeText(this, "ENTRÓ AQUÍ"+logged_Email, Toast.LENGTH_LONG).show()
}
.addOnFailureListener(this){ e->
Toast.makeText(this, ""+e.message, Toast.LENGTH_LONG).show()
}
}
override fun onActivityResult(requestCode: Int, resultCode: Int, data: Intent?) {
super.onActivityResult(requestCode, resultCode, data)
if (requestCode==RC_SIGN_IN){
// val task: Task<GoogleSignInAccount> = GoogleSignIn.getSignedInAccountFromIntent(data)
val result=Auth.GoogleSignInApi.getSignInResultFromIntent(data)
if(result.isSuccess){
val account=result.signInAccount
val idToken= account!!.idToken
val credential=GoogleAuthProvider.getCredential(idToken,null)
firebaseAuthWithGoogle(credential)
// onStart()
val intento1 = Intent(this, WelcomeUser::class.java)
startActivity(intento1)
}
//this is Facebook part
callbackManager!!.onActivityResult(resultCode, resultCode, data )
}
}