Selector, Layer-list and shape/bitmap in the same xml

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

    <item android:state_pressed="true">
        <layer-list>
            <item>
                <shape android:shape="rectangle">
                    <size android:width="90dp" android:height="90dp" />

                <solid android:color="#9933CC" />
                </shape>
            </item>
            <item>
                <bitmap android:gravity="center" android:src="@drawable/main_achievements_synthesis" />
            </item>
        </layer-list>
    </item>
    <item>
        <layer-list>
            <item>
                <shape android:shape="rectangle">
                    <size android:width="90dp" android:height="90dp" />

                    <solid android:color="#AA66CC" />
                </shape>
            </item>
            <item>
                <bitmap android:gravity="center" android:src="@drawable/main_achievements_synthesis" />
            </item>
        </layer-list>
    </item>

</selector>

 <?xml version="1.0" encoding="utf-8"?>
<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
    <item>
        <selector>
            <item android:state_pressed="true">
                <shape android:shape="rectangle">
                    <size android:width="90dp" android:height="90dp" />
                    <solid android:color="#9933CC" />
                </shape>
            </item>
            <item>
                <shape android:shape="rectangle">
                    <size android:width="90dp" android:height="90dp" />
                    <solid android:color="#AA66CC" />
                </shape>
            </item>
        </selector>
    </item>
    <item>
        <bitmap
            android:gravity="center"
            android:src="@drawable/main_achievements_synthesis" />
    </item>
</layer-list>

 version2

<?xml version="1.0" encoding="utf-8"?>

<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
    <item>
        <shape android:shape="rectangle">
            <corners android:radius="5dp"/>
            <solid android:color="#D0D0D0"/>
        </shape>
    </item>
    <item>
        <inset android:insetBottom="2dp">
            <selector>
                <item android:state_pressed="false">
                    <shape android:shape="rectangle">
                        <corners android:radius="3dp"/>
                        <solid android:color="#006600" />
                    </shape>
                </item>

                <item android:state_pressed="true">
                    <shape android:shape="rectangle">
                        <corners android:radius="3dp"/>
                        <solid android:color="#003300" />
                    </shape>
                </item>
            </selector>
        </inset>
    </item>
</layer-list>