app/src/main/java/ai/pai/client/activity/GroupRenameActivity.java

@@ -76,7 +76,7 @@ public class GroupRenameActivity extends BaseActivity implements View.OnClickLis

                         if(groupNameEdit.getText()!=null){
              

                              newGroupName = groupNameEdit.getText().toString();
              

                         }
              

                -        if(newGroupName.length()==0){
              

                +        if(newGroupName.replace(" ","").length()==0){
              

                             Toast.makeText(this,R.string.group_name_null,Toast.LENGTH_SHORT).show();
              

                             return;
              

                         }
              

app/src/main/java/ai/pai/client/adapter/HistoryGroupAdapter.java

@@ -18,6 +18,7 @@ import java.util.ArrayList;

                 import ai.pai.client.R;
              

                 import ai.pai.client.activity.GroupActivity;
              

                 import ai.pai.client.beans.GroupInfo;
              

                +import ai.pai.client.db.DBService;
              

                 import ai.pai.client.db.Preferences;
              

                 import ai.pai.client.utils.GroupCreateUtils;
              

                 
              
@@ -84,6 +85,7 @@ public class HistoryGroupAdapter extends RecyclerView.Adapter<HistoryGroupAdapte

                 
              

                                 groupList.remove(holder.getAdapterPosition());
              

                                 notifyItemRemoved(holder.getAdapterPosition());
              

                +                DBService.getInstance(context).deleteGroupByGroupId(info.groupId);
              

                                 if(listener!=null){
              

                                     listener.onGroupDeleted(info);
              

                                 }