import android.support.v7.widget.GridLayoutManager; import android.support.v7.widget.LinearLayoutManager; import android.support.v7.widget.RecyclerView; import android.support.v7.widget.StaggeredGridLayoutManager;
导入android.support.v7.widget.*报错,说明没有导入recyclerview-v7包
解决方案:
导入recyclerview-v7包,可以在build.gradle文件中直接添加导入,但是有时不知道你已有的版本,
可以通过:File->Project Structrue->选择module->Despendencies->Library dependency->添加recyclerview-v7