<com.github.johnkil.print.PrintView
        android:layout_alignParentLeft="true"
        android:id="@+id/arrow_icon"
        android:layout_centerVertical="true"
        android:layout_centerHorizontal="true"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        app:iconText="@string/ic_keyboard_arrow_right"
        app:iconColor="@color/text_gray"
        app:iconFont="fonts/material-icon-font.ttf"
        app:iconSize="20dp" />app:iconText="@string/ic_keyboard_arrow_right" 我在改这句换成drawable文件夹里的图标?
icon.setIconText(context.getResources().getString(R.string.ic_sd_storage))
这句怎么搞用R.drawable.ic_sd代替?