title: Registration user using firebase throug email and password?
body: <p>I created register activity with Firebase Authorization, and trying to register new user, but when I press register button I got exception from my code </p>
  
  <pre><code>protected void onCreate(Bundle savedInstanceState) {
      super.onCreate(savedInstanceState);
      setContentView(R.layout.activity_register);
      etUsername = (EditText) findViewById(R.id.etUserName);
      etEmail = (EditText) findViewById(R.id.etEmailRegiter);
      etPassword = (EditText) findViewById(R.id.etPasswordRegiter);
      etPasswordRe = (EditText) findViewById(R.id.etPasswordRegiterRe);
  
      register = (Button) findViewById(R.id.btnRegister);
  
      passwordRule = (LinearLayout) findViewById(R.id.password_rule);
  
      etPassword.setOnClickListener(new View.OnClickListener() {
          @Override
          public void onClick(View v) {
              passwordRule.setVisibility(View.VISIBLE);
          }
      });
  
      mAuth = FirebaseAuth.getInstance();
      register.setOnClickListener(new View.OnClickListener() {
          @Override
          public void onClick(View v) {
              createAccount(etUsername.getText().toString(), etPassword.getText().toString());
          }
      });
  
  }
  
  private void createAccount(String email, String password) {
      Log.d(LOG_TAG, "createAccount:" + email);
  //        if (!validateForm()) {
  //            return;
  //        }
  
      mAuth.createUserWithEmailAndPassword(email, password)
              .addOnCompleteListener(this, new OnCompleteListener&lt;AuthResult&gt;() {
                  @Override
                  public void onComplete(@NonNull Task&lt;AuthResult&gt; task) {
                      if (task.isSuccessful()) {
                          Log.d(LOG_TAG, "createUserWithEmail:success");
                          FirebaseUser user = mAuth.getCurrentUser();
  
                          Log.d(LOG_TAG, ":" + mDatabase.child(PATH_TO_DATA_USERS));
  
  //                            sendEmailVerification();
  //                            Intent intent = new Intent(getContext(), MainActivity.class);
  //                            intent.putExtra("user", user.getUid());
  //                            startActivity(intent);
                          }
                           else {
                              try {
                                  throw task.getException();
                              } catch(FirebaseAuthWeakPasswordException e) {
                                  etPassword.setError("weak password");
                                  etPassword.requestFocus();
                              } catch(FirebaseAuthInvalidCredentialsException e) {
                                  etEmail.setError("invalid credential exception");
                                  etEmail.requestFocus();
                              } catch(FirebaseAuthUserCollisionException e) {
                                  etEmail.setError("collision exception");
                                  etEmail.requestFocus();
                              } catch(Exception e) {
                                  Log.e(LOG_TAG, e.getMessage());
                              }
                              Log.w(LOG_TAG, "createUserWithEmail:failure", task.getException());
                              Log.d(LOG_TAG, ":" + (mAuth == null));
                              Toast.makeText(RegisterActivity.this, "Authentication failed.",
                                      Toast.LENGTH_SHORT).show();
                          }
  
                      }
                  });
      }
  </code></pre>
  
  <p>xml code:</p>
  
  <pre><code>    &lt;?xml version="1.0" encoding="utf-8"?&gt;
  &lt;LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
      android:orientation="vertical" android:layout_width="match_parent"
      android:layout_height="match_parent"&gt;
      &lt;LinearLayout
          android:layout_width="match_parent"
          android:layout_height="wrap_content"
          android:orientation="vertical"
          android:layout_marginTop="50dp"
          &gt;
          &lt;EditText
              android:id="@+id/etUserName"
              android:layout_marginLeft="15dp"
              android:layout_marginRight="15dp"
              android:layout_width="match_parent"
              android:layout_weight="1"
              android:layout_height="wrap_content"
              android:hint="@string/hint_user_name"/&gt;
          &lt;EditText
              android:id="@+id/etEmailRegiter"
              android:layout_marginLeft="15dp"
              android:layout_marginRight="15dp"
              android:layout_width="match_parent"
              android:layout_weight="1"
              android:layout_height="wrap_content"
              android:hint="@string/hint_email"/&gt;
          &lt;EditText
              android:id="@+id/etPasswordRegiter"
              android:layout_marginLeft="15dp"
              android:layout_marginRight="15dp"
              android:layout_width="match_parent"
              android:layout_weight="1"
              android:hint="@string/hint_password"
              android:inputType="textPassword"
              android:layout_height="wrap_content"/&gt;
          &lt;EditText
              android:id="@+id/etPasswordRegiterRe"
              android:layout_marginLeft="15dp"
              android:layout_marginRight="15dp"
              android:layout_width="match_parent"
              android:layout_weight="1"
              android:hint="@string/hint_password_re"
              android:inputType="textPassword"
              android:layout_height="wrap_content"/&gt;
  
      &lt;/LinearLayout&gt;
      &lt;LinearLayout
          android:id="@+id/password_rule"
          android:layout_width="match_parent"
          android:layout_height="wrap_content"
          android:visibility="gone"&gt;
          &lt;TextView
              android:layout_width="match_parent"
              android:layout_height="wrap_content"
              android:text="@string/password_rule"
              android:layout_marginLeft="17dp"
              android:layout_marginRight="17dp"
              android:layout_marginTop="5dp"
              android:textSize="17sp"/&gt;
      &lt;/LinearLayout&gt;
      &lt;Button
          android:id="@+id/btnRegister"
          android:layout_width="match_parent"
          android:layout_height="wrap_content"
          android:layout_marginTop="5dp"
          android:layout_marginLeft="20dp"
          android:layout_marginRight="20dp"
          android:text="@string/button_register"/&gt;
  
  &lt;/LinearLayout&gt;
  </code></pre>
  
  <p>(Here in my code task.isSuccessful() returns me false and for to solve this problem i commented my validation method. So now no validation for password and email, but before I tried to run code with validation, which returns me same error)</p>
  
  <p>and in logs get error like this</p>
  
  <pre><code>E/Volley: [187] BasicNetwork.performRequest: Unexpected response code 400 for https://www.googleapis.com/identitytoolkit/v3/relyingparty/signupNewUser?key=AIzaSyAPBVdM4hZpPBvTZrvE9gBjld0otb202Lg
  I/AuthChimeraService: Error description received from server: {
    "error": {
     "errors": [
      {
       "domain": "global",
       "reason": "invalid",
       "message": "INVALID_EMAIL"
      }
     ],
     "code": 400,
     "message": "INVALID_EMAIL"
    }
   }
  </code></pre>
  
  <p>By the way I tried to sign up by creation new user by myself through console. It works well I can sign with this user.</p>
  
  <p>Here is my gradle dependencies </p>
  
  <pre><code>compile 'com.google.firebase:firebase-database:10.0.1'
  compile 'com.google.firebase:firebase-core:10.0.1'
  compile 'com.google.firebase:firebase-auth:10.0.1'
  </code></pre>