ClassCastException：ColorDrawable

原标题:ClassCastException：ColorDrawable cannot be cast to RoundRectDrawableWithShadow 错误信息

java.lang.ClassCastException: android.graphics.drawable.ColorDrawable cannot be cast to android.support.v7.widget.RoundRectDrawableWithShadow

我在给CardView组件设置背景颜色属性时，起初是按照如下方法做的：

cardView.setBackgroundColor(Color.parseColor("#ffffff"));

但是运行后却报错，提示类型转换错误：java.lang.ClassCastException: android.graphics.drawable.ColorDrawable cannot be cast to android.support.v7.widget.RoundRectDrawableWithShadow

解决方案

cardView.setCardBackgroundColor(Color.parseColor("#ffffff"));