public void onClick(View V) {
        edit_UserName = (EditText) (findViewById(R.id.userName));
        editText = (EditText) (findViewById(R.id.pwdField));
        EditText editText2 = (EditText) (findViewById(R.id.userNameText));
        String password = editText.getText().toString();
        userName = editText2.getText().toString();
        weakPassword=false;
        for (int i = 0; i+2 < password.length(); i++) {
            if (password.charAt(i) == '1' && password.charAt(i + 1) == '2' && password.charAt(i + 2) == '3')
                weakPassword = true;
        }
        final ProgressDialog progressDialog= ProgressDialog.show(MainActivity.this,"מתחבר לשרת.. נא המתן","מקיים תקשורות עם השרת",true);
        (firebaseAuth.signInWithEmailAndPassword(editText.getText().toString(),edit_UserName.getText().toString()))
                .addOnCompleteListener(new OnCompleteListener<AuthResult>() {
                    @Override
                    public void onComplete(@NonNull Task<AuthResult> task) {
                        progressDialog.dismiss();

                        if(task.isSuccessful()) {
                            Toast.makeText(MainActivity.this, "התחברת בהצלחה!", Toast.LENGTH_SHORT).show();
                            init();

                        }
                        else {
                            Log.e("שגיאה",task.getException().toString());
                            Toast.makeText(MainActivity.this,task.getException().getMessage(),Toast.LENGTH_LONG).show();
                        }}});}