設置 FireBase Authentication

Step 1 點選 Tool 會看到 FireBase

Step 2 點選 Authentication

Step 3 需要去連接 FireBase帳號

Step 4 建立一個 新的 FireBase 專案 或 選擇舊的 FireBase 專案

Step 5 import FireBase Authentication 套件

功能

登入

        val auth = FirebaseAuth.getInstance()
        auth.signInWithEmailAndPassword(acount, password).addOnCompleteListener(this, OnCompleteListener { task ->
            if(task.isSuccessful) {
                Toast.makeText(this, "Successfully Logged In", Toast.LENGTH_LONG).show()
                
            }

            else {
                Toast.makeText(this, "Login Failed", Toast.LENGTH_LONG).show()
            }
        })

登出

        FirebaseAuth.getInstance().signOut()
         

註冊

        val auth = FirebaseAuth.getInstance()
        auth.createUserWithEmailAndPassword(acount, password).addOnCompleteListener(this, OnCompleteListener{ task ->
            if(task.isSuccessful){

                Toast.makeText(this, "Registration Successed", Toast.LENGTH_LONG).show()
                 

            }else {
                // If sign in fails, display a message to the user.
                Log.d("TAG", "createUserWithEmail:failure", task.exception)
                Toast.makeText(this, "Registration Failed", Toast.LENGTH_LONG).show()
            }
        })

重設密碼

        val auth = FirebaseAuth.getInstance()
        auth.sendPasswordResetEmail(email)
            .addOnCompleteListener(this, OnCompleteListener { task ->
                if (task.isSuccessful) {
                    Toast.makeText(this, "Reset link sent to your email", Toast.LENGTH_LONG).show()

                  
                } else {

                    Toast.makeText(this, "Unable to send reset mail", Toast.LENGTH_LONG).show()
                }
            })

FireBase 要記得設定認證選項

在FireBase 可以看到 使用者資料