Color State List not recognized in Shape Drawable
问题 I define following drawable my_background_drawable.xml : <?xml version="1.0" encoding="utf-8"?> <layer-list xmlns:android="http://schemas.android.com/apk/res/android" > <item> <shape android:gravity="center" android:shape="rectangle"> <solid android:color="@color/color_stateful" /> </shape> </item> <item android:drawable="@drawable/selector_png_drawable" /> </layer-list> And I also define following color state list resource color_stateful.xml : <?xml version="1.0" encoding="utf-8"?> <selector