ExpandableListView與Multie視圖類型崩潰滾動等

由於某種原因，我的expandableListView在滾動或旋轉更改時崩潰。我有兩個視圖類型爲這項活動ExpandableListView與Multie視圖類型崩潰滾動等

代碼：

@Override 
    public int getGroupType(int groupPosition){ 
     return comments.get(groupPosition).is_load_more; 
    } 

    @Override 
    public int getGroupTypeCount(){ 
     return 2; 
    } 

    @Override 
    public View getGroupView(final int groupPosition, boolean isExpanded, View convertView, ViewGroup parent) { 
     ViewHolder holder = null; 
     View vi = convertView; 
     final commentItem item = getGroup(groupPosition); 
     if(vi == null) { 
      holder = new ViewHolder(); 
      if(getGroupType(groupPosition) == 1){ 
       vi = mLayoutInflater.inflate(R.layout.comments_loadmore, null); 
       holder.load_more = (Button)vi.findViewById(R.id.comments_load_more); 
      }else{ 
       vi = mLayoutInflater.inflate(R.layout.comments_item, null); 
       holder.aq = new AQuery(vi); 
       holder.usericon = (ImageView)vi.findViewById(R.id.comments_item_userpic); 
       holder.username = (TextView)vi.findViewById(R.id.comments_item_username); 
       holder.fullname = (TextView)vi.findViewById(R.id.comments_item_fullname); 
       holder.content = (TextView)vi.findViewById(R.id.comments_item_content); 
       holder.commentc = (TextView)vi.findViewById(R.id.comments_item_commentcount); 
       holder.commentBtn = (FrameLayout)vi.findViewById(R.id.comments_item_comment); 
       holder.bumpBtn = (ImageView)vi.findViewById(R.id.comments_item_bump); 
       holder.bumpc = (TextView)vi.findViewById(R.id.comments_item_countbump); 
       holder.replyLayout = (LinearLayout)vi.findViewById(R.id.comments_item_replyLayout); 
      } 

     } else { 
      holder = (ViewHolder) vi.getTag(); 
     } 

     if(getGroupType(groupPosition) == 1){ 

     }else{ 
      holder.aq.id(R.id.comments_item_userpic).image(item.user_img, true, false, 96, 0);

的logcat：

E/AndroidRuntime(9861): java.lang.NullPointerException 
E/AndroidRuntime(9861):  at test.com.CommentsActivity$commentAdapte 
r.getGroupView(CommentsActivity.java:243) 
E/AndroidRuntime(9861):  at android.widget.ExpandableListConnector.getVie 
w(ExpandableListConnector.java:446) 
E/AndroidRuntime(9861):  at android.widget.AbsListView.obtainView(AbsList 
View.java:2268) 
E/AndroidRuntime(9861):  at android.widget.ListView.makeAndAddView(ListVi 
ew.java:1790) 
E/AndroidRuntime(9861):  at android.widget.ListView.fillDown(ListView.jav 
a:691) 
E/AndroidRuntime(9861):  at android.widget.ListView.fillSpecific(ListView 
.java:1349) 
E/AndroidRuntime(9861):  at android.widget.ListView.layoutChildren(ListVi 
ew.java:1641) 
E/AndroidRuntime(9861):  at android.widget.AbsListView.onLayout(AbsListVi 
ew.java:2117) 
E/AndroidRuntime(9861):  at android.view.View.layout(View.java:14817) 
E/AndroidRuntime(9861):  at android.view.ViewGroup.layout(ViewGroup.java: 
4631) 
E/AndroidRuntime(9861):  at android.widget.LinearLayout.setChildFrame(Lin 
earLayout.java:1671) 
E/AndroidRuntime(9861):  at android.widget.LinearLayout.layoutVertical(Li 
nearLayout.java:1525) 
E/AndroidRuntime(9861):  at android.widget.LinearLayout.onLayout(LinearLa 
yout.java:1434) 
E/AndroidRuntime(9861):  at android.view.View.layout(View.java:14817) 
E/AndroidRuntime(9861):  at android.view.ViewGroup.layout(ViewGroup.java: 
4631) 
E/AndroidRuntime(9861):  at android.widget.FrameLayout.layoutChildren(Fra 
meLayout.java:453) 
E/AndroidRuntime(9861):  at android.widget.FrameLayout.onLayout(FrameLayo 
ut.java:388) 
E/AndroidRuntime(9861):  at android.view.View.layout(View.java:14817) 
E/AndroidRuntime(9861):  at android.view.ViewGroup.layout(ViewGroup.java: 
4631) 
E/AndroidRuntime(9861):  at com.android.internal.widget.ActionBarOverlayL 
ayout.onLayout(ActionBarOverlayLayout.java:374) 
E/AndroidRuntime(9861):  at android.view.View.layout(View.java:14817) 
E/AndroidRuntime(9861):  at android.view.ViewGroup.layout(ViewGroup.java: 
4631) 
E/AndroidRuntime(9861):  at android.widget.FrameLayout.layoutChildren(Fra 
meLayout.java:453) 
E/AndroidRuntime(9861):  at android.widget.FrameLayout.onLayout(FrameLayo 
ut.java:388) 
E/AndroidRuntime(9861):  at android.view.View.layout(View.java:14817) 
E/AndroidRuntime(9861):  at android.view.ViewGroup.layout(ViewGroup.java: 
4631) 
E/AndroidRuntime(9861):  at android.view.ViewRootImpl.performLayout(ViewR 
ootImpl.java:1987) 
E/AndroidRuntime(9861):  at android.view.ViewRootImpl.performTraversals(V 
iewRootImpl.java:1744) 
E/AndroidRuntime(9861):  at android.view.ViewRootImpl.doTraversal(ViewRoo 
tImpl.java:1000) 
E/AndroidRuntime(9861):  at android.view.ViewRootImpl$TraversalRunnable.r 
un(ViewRootImpl.java:5670) 
E/AndroidRuntime(9861):  at android.view.Choreographer$CallbackRecord.run 
(Choreographer.java:761) 
E/AndroidRuntime(9861):  at android.view.Choreographer.doCallbacks(Choreo 
grapher.java:574) 
E/AndroidRuntime(9861):  at android.view.Choreographer.doFrame(Choreograp 
her.java:544) 
E/AndroidRuntime(9861):  at android.view.Choreographer$FrameDisplayEventR 
eceiver.run(Choreographer.java:747) 
E/AndroidRuntime(9861):  at android.os.Handler.handleCallback(Handler.jav 
a:733) 
E/AndroidRuntime(9861):  at android.os.Handler.dispatchMessage(Handler.ja 
va:95) 
E/AndroidRuntime(9861):  at android.os.Looper.loop(Looper.java:136) 
E/AndroidRuntime(9861):  at android.app.ActivityThread.main(ActivityThrea 
d.java:5081) 
E/AndroidRuntime(9861):  at java.lang.reflect.Method.invokeNative(Native 
Method) 
E/AndroidRuntime(9861):  at java.lang.reflect.Method.invoke(Method.java:5 
15) 
E/AndroidRuntime(9861):  at com.android.internal.os.ZygoteInit$MethodAndA 
rgsCaller.run(ZygoteInit.java:791) 
E/AndroidRuntime(9861):  at com.android.internal.os.ZygoteInit.main(Zygot 
eInit.java:607) 
E/AndroidRuntime(9861):  at dalvik.system.NativeStart.main(Native Method)

及其對「holder.aq.id崩潰（R.id.comments_item_userpic）圖像配（項目.user_img，true，false，96，0）;「我不知道爲什麼。任何人都可以幫我嗎？

來源

2014-03-26 arberb

「這不保證convertView以前是由getGroupView（int，boolean，View，ViewGroup）創建的。」所以如果你沒有在getChildView上設置持有者，你可能會有一個空指針。 –

我忘了添加 vi.setTag（holder）;在我第一次設置視圖持有者之後，我的屏幕顯示爲。我的不好：S希望這可以幫助任何人有類似的問題

來源

2014-03-26 20:15:30 arberb

ExpandableListView與Multie視圖類型崩潰滾動等

回答

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