<shape android:shape="rectangle">
    <stroke android:width="1dp" android:color="@color/designer_cell_background" />
    <solid android:color="@color/designer_cell_background" />
    <corners
        android:radius="7dp"
        android:topRightRadius="0dp"
        android:topLeftRadius="0dp"/>
    <padding android:bottom="1dp"/>
</shape>
just like this code,if i want to know what attributes shape has and what's meaning they are separetly. How should I do,Is there any document to refer to .Thank everyone for help in advance.
 
     
     
     
    