Keyboard does not overlay button in Relative Layout

Good morning everyone. I have a problem with my application: I have a device registration screen, as shown below, but when I enable a typing field, the keyboard does not override the button:

WhatleftmemostdoubtfulisthatIhaveanotherlayoutwherethisdoesnotoccur:

Bothbuttonshavethesameencoding:

RECORDBUTTONDEVICE

<Buttonandroid:id="@+id/btn_gravaDisp"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:layout_alignParentBottom="true"
    android:layout_marginBottom="20dp"
    android:layout_marginRight="20dp"
    android:layout_marginLeft="20dp"
    android:text="Gravar Dispositivo"
    android:background="@color/colorPrimaryDark"
    android:textColor="@android:color/white"
    android:textAppearance="@style/Base.TextAppearance.AppCompat.Large"/>

USER RECORD BUTTON

<Button
    android:id="@+id/btn_gravaUser"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:layout_alignParentBottom="true"
    android:layout_marginBottom="20dp"
    android:layout_marginRight="20dp"
    android:layout_marginLeft="20dp"
    android:text="Gravar Usuário"
    android:background="@color/colorPrimaryDark"
    android:textColor="@android:color/white"
    android:textAppearance="@style/Base.TextAppearance.AppCompat.Large"/>

I've checked in some other posts that there is a adjustPan option, however, both of these classes extend Fragment , not AppCompatActivity .

Below, java code for both classes:

Register Device:

public class CadastrarDispositivos extends Fragment {


@Override
public void onViewCreated(View view, @Nullable Bundle savedInstanceState) {
    super.onViewCreated(view, savedInstanceState);

    getActivity().setTitle("Cadastro de Dispositivos");
}

@Nullable
@Override
public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup 
container, @Nullable Bundle savedInstanceState) {
    return inflater.inflate(R.layout.cadastrodispositivos, container, 
false);
}

}

Users:

public class Usuarios extends Fragment {


@Override
public void onViewCreated(View view, @Nullable Bundle savedInstanceState) {
    super.onViewCreated(view, savedInstanceState);

    getActivity().setTitle("Usuários");
}

@Nullable
@Override
public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup 
container, @Nullable Bundle savedInstanceState) {
    return inflater.inflate(R.layout.usuarios, container, false);
}

}

Device Master Xml:

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout
xmlns:android="http://schemas.android.com/apk/res/android" 
android:layout_width="match_parent"
android:layout_height="match_parent">

<android.support.design.widget.TextInputLayout
    android:id="@+id/inputNomeDisp"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:paddingTop="20dp">
    <android.support.design.widget.TextInputEditText
        android:id="@+id/editNomeDisp"
        android:hint="Nome do dispositivo"
        android:textColorHint="@color/colorPrimaryDark"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:layout_margin="20dp"
        android:maxLength="20"
        android:inputType="text"/>
</android.support.design.widget.TextInputLayout>

<android.support.design.widget.TextInputLayout
    android:layout_below="@id/inputNomeDisp"
    android:id="@+id/inputTipoDisp"
    android:layout_width="match_parent"
    android:layout_height="wrap_content">
    <android.support.design.widget.TextInputEditText
        android:id="@+id/editTipoDisp"
        android:layout_width="match_parent"
        android:hint="Tipo do dispositivo"
        android:textColorHint="@color/colorPrimaryDark"
        android:layout_height="match_parent"
        android:layout_margin="20dp"
        android:maxLength="20"
        android:inputType="text"/>
</android.support.design.widget.TextInputLayout>

<android.support.design.widget.TextInputLayout
    android:layout_below="@id/inputTipoDisp"
    android:id="@+id/inputLocalDisp"
    android:layout_width="match_parent"
    android:layout_height="wrap_content">
    <android.support.design.widget.TextInputEditText
        android:id="@+id/editLocalDisp"
        android:layout_width="match_parent"
        android:hint="Local do dispositivo"
        android:textColorHint="@color/colorPrimaryDark"
        android:layout_height="match_parent"
        android:layout_margin="20dp"
        android:maxLength="20"
        android:inputType="text"/>
</android.support.design.widget.TextInputLayout>

<android.support.design.widget.TextInputLayout
    android:layout_below="@id/inputLocalDisp"
    android:id="@+id/inputPortaDisp"
    android:layout_width="match_parent"
    android:layout_height="wrap_content">
    <android.support.design.widget.TextInputEditText
        android:id="@+id/editPortaDisp"
        android:layout_width="match_parent"
        android:hint="Porta do dispositivo"
        android:textColorHint="@color/colorPrimaryDark"
        android:layout_height="match_parent"
        android:layout_margin="20dp"
        android:maxLength="20"
        android:inputType="number"/>
</android.support.design.widget.TextInputLayout>

<Button
    android:id="@+id/btn_gravaDisp"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:layout_alignParentBottom="true"
    android:layout_marginBottom="20dp"
    android:layout_marginRight="20dp"
    android:layout_marginLeft="20dp"
    android:text="Gravar Dispositivo"
    android:background="@color/colorPrimaryDark"
    android:textColor="@android:color/white"
    android:textAppearance="@style/Base.TextAppearance.AppCompat.Large"/ 
</RelativeLayout>

User registration Xml:

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout
xmlns:android="http://schemas.android.com/apk/res/android" 
android:layout_width="match_parent"
android:layout_height="match_parent">

<android.support.design.widget.TextInputLayout
android:id="@+id/inputNomeUsuario"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:paddingTop="20dp">
    <android.support.design.widget.TextInputEditText
        android:id="@+id/editNomeUsuario"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_margin="20dp"
        android:hint="Nome do usuario"
        android:textColorHint="@color/colorPrimaryDark"/>
</android.support.design.widget.TextInputLayout>

<android.support.design.widget.TextInputLayout
    android:id="@+id/inputSenhaUsuario"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:layout_below="@id/inputNomeUsuario">
    <android.support.design.widget.TextInputEditText
        android:id="@+id/editSenhaUsuario"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_margin="20dp"
        android:hint="Senha do usuario"
        android:textColorHint="@color/colorPrimaryDark"/>
</android.support.design.widget.TextInputLayout>

<android.support.v7.widget.AppCompatTextView
    android:layout_below="@id/inputSenhaUsuario"
    android:id="@+id/txtAdministrador"
    android:layout_margin="20dp"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:text="Administrador?"
    android:textSize="20dp"
    android:textColor="@color/colorPrimaryDark"/>

<android.support.v7.widget.AppCompatCheckBox
    android:id="@+id/cbx_Sim"
    android:text="Sim"
    android:textSize="20dp"
    android:textColor="@color/colorPrimaryDark"
    android:layout_below="@id/txtAdministrador"
    android:layout_marginLeft="20dp"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content" />

<android.support.v7.widget.AppCompatCheckBox
    android:id="@+id/cbx_Nao"
    android:text="Não"
    android:textSize="20dp"
    android:textColor="@color/colorPrimaryDark"
    android:layout_below="@id/cbx_Sim"
    android:layout_marginLeft="20dp"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content" />

<Button
    android:id="@+id/btn_gravaUser"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:layout_alignParentBottom="true"
    android:layout_marginBottom="20dp"
    android:layout_marginRight="20dp"
    android:layout_marginLeft="20dp"
    android:text="Gravar Usuário"
    android:background="@color/colorPrimaryDark"
    android:textColor="@android:color/white"
    android:textAppearance="@style/Base.TextAppearance.AppCompat.Large"/>

</RelativeLayout>

Thank you in advance for helping me!

Thanks!