-import android.support.annotation.NonNull;
-import android.support.annotation.Nullable;
-import android.support.design.widget.FloatingActionButton;
-import android.support.v7.widget.LinearLayoutManager;
-import android.support.v7.widget.RecyclerView;
+import androidx.annotation.NonNull;
+import androidx.annotation.Nullable;
+import com.google.android.material.floatingactionbutton.FloatingActionButton;
+import androidx.recyclerview.widget.LinearLayoutManager;
+import androidx.recyclerview.widget.RecyclerView;