/
SignInActivity.kt
157 lines (129 loc) · 4.7 KB
/
SignInActivity.kt
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package com.google.firebase.quickstart.database.kotlin
import android.content.Intent
import android.os.Bundle
import android.text.TextUtils
import android.util.Log
import android.view.View
import android.widget.Toast
import com.google.firebase.auth.FirebaseAuth
import com.google.firebase.auth.FirebaseUser
import com.google.firebase.auth.ktx.auth
import com.google.firebase.database.DatabaseReference
import com.google.firebase.database.ktx.database
import com.google.firebase.ktx.Firebase
import com.google.firebase.quickstart.database.R
import com.google.firebase.quickstart.database.databinding.ActivitySignInBinding
import com.google.firebase.quickstart.database.kotlin.models.User
class SignInActivity : BaseActivity(), View.OnClickListener {
private lateinit var database: DatabaseReference
private lateinit var auth: FirebaseAuth
private lateinit var binding: ActivitySignInBinding
override fun onCreate(savedInstanceState: Bundle?) {
super.onCreate(savedInstanceState)
binding = ActivitySignInBinding.inflate(layoutInflater)
setContentView(binding.root)
database = Firebase.database.reference
auth = Firebase.auth
setProgressBar(R.id.progressBar)
// Click listeners
with(binding) {
buttonSignIn.setOnClickListener(this@SignInActivity)
buttonSignUp.setOnClickListener(this@SignInActivity)
}
}
public override fun onStart() {
super.onStart()
// Check auth on Activity start
auth.currentUser?.let {
onAuthSuccess(it)
}
}
private fun signIn() {
Log.d(TAG, "signIn")
if (!validateForm()) {
return
}
showProgressBar()
val email = binding.fieldEmail.text.toString()
val password = binding.fieldPassword.text.toString()
auth.signInWithEmailAndPassword(email, password)
.addOnCompleteListener(this) { task ->
Log.d(TAG, "signIn:onComplete:" + task.isSuccessful)
hideProgressBar()
if (task.isSuccessful) {
onAuthSuccess(task.result?.user!!)
} else {
Toast.makeText(baseContext, "Sign In Failed",
Toast.LENGTH_SHORT).show()
}
}
}
private fun signUp() {
Log.d(TAG, "signUp")
if (!validateForm()) {
return
}
showProgressBar()
val email = binding.fieldEmail.text.toString()
val password = binding.fieldPassword.text.toString()
auth.createUserWithEmailAndPassword(email, password)
.addOnCompleteListener(this) { task ->
Log.d(TAG, "createUser:onComplete:" + task.isSuccessful)
hideProgressBar()
if (task.isSuccessful) {
onAuthSuccess(task.result?.user!!)
} else {
Toast.makeText(baseContext, "Sign Up Failed",
Toast.LENGTH_SHORT).show()
}
}
}
private fun onAuthSuccess(user: FirebaseUser) {
val username = usernameFromEmail(user.email!!)
// Write new user
writeNewUser(user.uid, username, user.email)
// Go to MainActivity
startActivity(Intent(this@SignInActivity, MainActivity::class.java))
finish()
}
private fun usernameFromEmail(email: String): String {
return if (email.contains("@")) {
email.split("@".toRegex()).dropLastWhile { it.isEmpty() }.toTypedArray()[0]
} else {
email
}
}
private fun validateForm(): Boolean {
var result = true
if (TextUtils.isEmpty(binding.fieldEmail.text.toString())) {
binding.fieldEmail.error = "Required"
result = false
} else {
binding.fieldEmail.error = null
}
if (TextUtils.isEmpty(binding.fieldPassword.text.toString())) {
binding.fieldPassword.error = "Required"
result = false
} else {
binding.fieldPassword.error = null
}
return result
}
// [START basic_write]
private fun writeNewUser(userId: String, name: String, email: String?) {
val user = User(name, email)
database.child("users").child(userId).setValue(user)
}
// [END basic_write]
override fun onClick(v: View) {
val i = v.id
if (i == R.id.buttonSignIn) {
signIn()
} else if (i == R.id.buttonSignUp) {
signUp()
}
}
companion object {
private const val TAG = "SignInActivity"
}
}