Y_DividerItemDecoration
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保错了
java.lang.NullPointerException: Attempt to invoke virtual method 'com.yanyusong.y_divideritemdecoration.Y_SideLine com.yanyusong.y_divideritemdecoration.Y_Divider.getLeftSideLine()' on a null object reference
然后在高版本的 v7 28版本里面设置没有效果了 `