Question

I’m using a number Picker to get a information from the user, but when I call the number picker in the XML, I can see only the EditText, and the buttons doesn’t appear.

<NumberPicker android:id="@+id/reais_picker"
    android:layout_height="wrap_content"
    android:layout_width="wrap_content"
    android:layout_marginTop="50dp"
    android:layout_marginLeft="40dp"
    android:layout_toRightOf="@id/type_spinner" 
    android:layout_below="@id/valor_text" />

Answer 1

Try to set the max and min values and see if it makes a difference.

setMaxValue (int maxValue)
setMinValue (int minValue)

EDIT: I would also suggest to test on a real device.