coding

app/src/main/java/cn/bsl/bxbg/zhiban/adapter/ZhibanTableAdapter.java

@@ -46,7 +46,7 @@ public class ZhibanTableAdapter extends BaseAdapter {
             convertView = LayoutInflater.from(parent.getContext())
                     .inflate(R.layout.item_zhiban_table, parent, false);
             viewHolder = new ViewHolder(convertView);
-            convertView.setTag(convertView);
+            convertView.setTag(viewHolder);
         } else {
             viewHolder = (ViewHolder) convertView.getTag();
         }

app/src/main/java/cn/bsl/bxbg/zhiban/view/DutyChangePeopleActivity.java

@@ -70,7 +70,7 @@ public class DutyChangePeopleActivity extends BaseActivity implements AdapterVie
                     }
 
 
-                } catch (IOException e) {
+                } catch (IOException | NullPointerException e) {
                     e.printStackTrace();
                 }
                 Collections.sort(allPersonBeen);

app/src/main/res/layout/activity_duty_change_people.xml

@@ -5,6 +5,7 @@
     android:layout_width="match_parent"
     android:layout_height="match_parent"
     android:orientation="vertical"
+    android:background="#FFF"
     tools:context="cn.bsl.bxbg.zhiban.view.DutyChangePeopleActivity">
 
     <include layout="@layout/conn" />