我无法更改字体。似乎ms_typeface属性更改了浮动标签，但没有更改微调器的文本。
任何提示？
这是我目前的xml：
<fr.ganfra.materialspinner.MaterialSpinner
android:id="@+id/settings_gender"
android:layout_width="match_parent"
android:layout_height="60dp"
android:layout_below="@+id/settings_email_til"
android:layout_marginTop="2dp"
app:ms_multiline="false"
app:ms_hint="@string/settings_personal_info_gender"
app:ms_enableFloatingLabel="true"
app:ms_enableErrorLabel="false"
app:ms_floatingLabelText="@string/settings_personal_info_gender"
app:ms_baseColor="@color/primary_text"
app:ms_highlightColor="@null"
app:ms_errorColor="@null"
app:ms_typeface="OpenSans-Light.ttf"
app:ms_thickness="0dp"
app:ms_hintColor="@color/greyish"
app:ms_arrowColor="@color/greyish"
app:ms_arrowSize="16dp"
app:ms_alignLabels="true"
app:ms_floatingLabelColor="@color/greyish"/>