I have EditText.getText () error 'on a null object reference when trying to call EditText from a fragment - Help!

I have EditText.getText () error 'on a null object reference when trying to call EditText from a fragment

Jul 21 '20 Comments: 4 Answers: 0

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My mainActivity

public class MainActivity extends AppCompatActivity {
    private AnotacaoPreferencias preferencias;
    private EditText editarAnotacao;
    private String TextoResultado;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        preferencias = new AnotacaoPreferencias(getApplicationContext());
        editarAnotacao = (EditText) findViewById(R.id.editAnotacao);

        FloatingActionButton fab = findViewById(R.id.fab);
        fab.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                //validar se algo foi

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