Getting null or empty error even though i controlled it-CodePudding

Though I controlled it with an if statement I'm getting ''Given string empty or null'' error and my app is closing.

fun kayitOl ( view : View) {


    val email =findViewById<EditText>(R.id.emailText).text
    val password  = findViewById<EditText>(R.id.passwordText).text

        if (email != null && password != null ) {
            auth.createUserWithEmailAndPassword(email.toString(), password.toString())
                .addOnCompleteListener(this) { task ->
                    if (task.isSuccessful) {
                        val intent = Intent(this, haber_akisi::class.java)
                        startActivity(intent)
                        finish()

                    }
                }.addOnFailureListener { exception ->
                    Toast.makeText(this, exception.localizedMessage, Toast.LENGTH_LONG).show()
                }

        }else {
            Toast.makeText(this,"Lütfen E-mail ve Password alanlarını doldurunuz",Toast.LENGTH_LONG).show()
        }



}

CodePudding user response：

You check just for null, but not for empty string ""

You can change your checking with email.isEmpty() or better email.isBlank() for checking strings like " "

CodePudding user response：

I found that in logcat sorry for my awkwardness it says auth.createUserWithEmailAndPassword(email.toString(), password.toString()) line is incorrect here is my logcat.

Caused by: java.lang.IllegalArgumentException: Given String is empty or null
    at com.google.android.gms.common.internal.Preconditions.checkNotEmpty(com.google.android.gms:play-services-basement@@17.1.0:5)
    at com.google.firebase.auth.FirebaseAuth.signInWithEmailAndPassword(com.google.firebase:firebase-auth@@21.0.1:1)
    at com.example.instagramclone.MainActivity.girisYap(MainActivity.kt:43)