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logcat java.lang.IllegalStateException 中显示错误：适配器的内容已更改，但 ListView 未收到通知。确保适配器的内容不是从后台线程修改的，而只是从 UI 线程修改的。[在 ListView(2131165193, class android.widget.ListView) with Adapter(class com.example.recipestutors.ItemListBaseAdapter)] ItemListBaseAdapter.java

 public class ItemListBaseAdapter extends BaseAdapter {
    private static ArrayList<Recipedetails> itemDetailsrrayList;

    private Integer[] imgid = {
            R.drawable.vegeterian,
            R.drawable.nonveg,
            R.drawable.pickels,
            R.drawable.soup,
            R.drawable.sweets,
            R.drawable.cakes,
            R.drawable.icecreams,
            R.drawable.chinesevegdishes,
            R.drawable.chinesenonveg,
            R.drawable.chinesenoodles,
            R.drawable.chinesesoup,
            R.drawable.godhumaivegadai,
            R.drawable.soyamorekoozh,
            R.drawable.tomatokulambu,
            R.drawable.tomatoupma,
            R.drawable.vadanavratrispecial,
            R.drawable.eggkurma,
            R.drawable.milagu,
            R.drawable.rasam,
            R.drawable.vegetablekootu,
            R.drawable.avial,
            R.drawable.kothavarangaicurry,
            R.drawable.allepeyfishcurry,
            R.drawable.spicymadraschicken,
            R.drawable.prawns,
            R.drawable.keralachickenstew,
            R.drawable.nilgirichickenkorma,
            R.drawable.pepperchickencurry,
            R.drawable.chettiandchicken,
            R.drawable.prawnmasala,
            R.drawable.beeffry,
            R.drawable.crispyfish,
            R.drawable.amlapickle,
            R.drawable.avakaipickle,
            R.drawable.capsicumpickle,
            R.drawable.lemonpickle,
            R.drawable.onionpickle,
            R.drawable.mangopickle,
            R.drawable.tendermangopickle,
            R.drawable.tomatopickle,
            R.drawable.chillipickles,
            R.drawable.gingerpickle,
            R.drawable.garlicsoup,
            R.drawable.mixedvegsoup,
            R.drawable.chickenmanchowsoup,
            R.drawable.cleartomatosoup,
            R.drawable.sweetcornvegetablesoup,
            R.drawable.prawnandnoodlesoup,
            R.drawable.beetrootsoup,
            R.drawable.capsicumsoup,
            R.drawable.muttonsoup,
            R.drawable.spinachsoup,
            R.drawable.vegcurry,
            R.drawable.mushroommutter,
            R.drawable.alooparatha,
            R.drawable.daltadka,
            R.drawable.aloomethi,
            R.drawable.rajma,
            R.drawable.paneerbhujri,
            R.drawable.alooghobi,
            R.drawable.aloosabzi,
            R.drawable.kadhaipaneer,
            R.drawable.chickenwithbellpeppers,
            R.drawable.butterchicken,
            R.drawable.fishkorma,
            R.drawable.prawnfry,
            R.drawable.tandoorichicken,
            R.drawable.maccherjholfish,
            R.drawable.shamikabab,
            R.drawable.saagmeat,
            R.drawable.sindhichickenbiryani,
            R.drawable.punjabichickencurry,
            R.drawable.gulabjamun,
            R.drawable.basundi,
            R.drawable.peda,
            R.drawable.badhamhalwa,
            R.drawable.coconutburfi,
            R.drawable.kulfi,
            R.drawable.ladoo,
            R.drawable.mysorepak,
            R.drawable.ricekheer,
            R.drawable.badam,
            R.drawable.cauliflowersoup,
            R.drawable.cucumbersoup,
            R.drawable.tomatosoup,
            R.drawable.mulligatawnysoup,
            R.drawable.greenpeassoup,
            R.drawable.northindianmuttonsoup,
            R.drawable.chickennoodlesoup,
            R.drawable.spicybeansoup,
            R.drawable.eggdropsoup,
            R.drawable.springvegsoup,
            R.drawable.mushroomandseitan,
            R.drawable.tofuwith3spices,
            R.drawable.creamyvegpie,
            R.drawable.grilledvegmedley,
            R.drawable.bakedsquash,
            R.drawable.africanchickenstew,
            R.drawable.westafricanchicken,
            R.drawable.africanyamsoup,
            R.drawable.chickenchilliroast,
            R.drawable.chilliblackbeans,
            R.drawable.williecake,
            R.drawable.pumpkingingercupcakes,
            R.drawable.doublelayerpumpkincheesecake,
            R.drawable.carrotcake,
            R.drawable.sexcake,
            R.drawable.chocolatechipicecream,
            R.drawable.cookieicecream,
            R.drawable.cinnamonicecream,
            R.drawable.appleicecream,
            R.drawable.walnut,
            R.drawable.chineseaubergins,
            R.drawable.spicycucumber,
            R.drawable.chinesemushrooms,
            R.drawable.chinesegobi,
            R.drawable.spicytofu,
            R.drawable.chinesetilchicken,
            R.drawable.chickenmoongali,
            R.drawable.sweetsourchicken,
            R.drawable.cherrychicken,
            R.drawable.mymasalachicken,
            R.drawable.coldseasamenoodles,
            R.drawable.sobanoodles,
            R.drawable.noodleswithtofu,
            R.drawable.chinesevegandbeef,
            R.drawable.noodleswithpepper,
            R.drawable.jhingasoup,
            R.drawable.masalachickensoup,
            R.drawable.cabbagesoup,
            R.drawable.chinesepumpkinsoup,
            R.drawable.baconsoup,





            };



    private LayoutInflater l_Inflater;

    public ItemListBaseAdapter(Context context, ArrayList<Recipedetails> results) {
        itemDetailsrrayList = results;
        l_Inflater = LayoutInflater.from(context);
    }

    public int getCount() {
        return itemDetailsrrayList.size();
    }

    public Object getItem(int position) {
        return itemDetailsrrayList.get(position);
    }

    public long getItemId(int position) {
        return position;
    }

    public View getView(int position, View convertView, ViewGroup parent) {
        ViewHolder holder;
        if (convertView == null) {
            convertView = l_Inflater.inflate(R.layout.item_details_view, null);
            holder = new ViewHolder();
            holder.txt_itemName = (TextView) convertView.findViewById(R.id.name);
            holder.txt_itemDescription = (TextView) convertView.findViewById(R.id.itemDescription);
            //holder.recipeLinkWiki = (TextView) convertView.findViewById(R.id.recipeLinkWiki);
            holder.itemImage = (ImageView) convertView.findViewById(R.id.photo);

            convertView.setTag(holder);
        } else {
            holder = (ViewHolder) convertView.getTag();
        }

        holder.txt_itemName.setText(itemDetailsrrayList.get(position).getName());
        holder.txt_itemDescription.setText(itemDetailsrrayList.get(position).getItemDescription());
        //holder.recipeLinkWiki.setText(itemDetailsrrayList.get(position).getUrlWiki());
        holder.itemImage.setImageResource(imgid[itemDetailsrrayList.get(position).getImageNumber() - 1]);

        return convertView;
    }

    static class ViewHolder {
         //TextView recipeLinkWiki;
        TextView txt_itemName;
        TextView txt_itemDescription;
        //TextView txt_recipeLinkWiki;
        ImageView itemImage;
    }
}

日志错误：

 03-18 12:59:18.592: E/AndroidRuntime(2010): FATAL EXCEPTION: main
 03-18 12:59:18.592: E/AndroidRuntime(2010): java.lang.IllegalStateException: The content of the adapter has changed but ListView did not receive a notification. Make sure the content of your adapter is not modified from a background thread, but only from the UI thread. [in ListView(2131165193, class android.widget.ListView) with Adapter(class com.example.recipestutors.ItemListBaseAdapter)]
 03-18 12:59:18.592: E/AndroidRuntime(2010):    at android.widget.ListView.layoutChildren(ListView.java:1544)
 03-18 12:59:18.592: E/AndroidRuntime(2010):    at android.widget.AbsListView.onTouchEvent(AbsListView.java:3403)
 03-18 12:59:18.592: E/AndroidRuntime(2010):    at android.view.View.dispatchTouchEvent(View.java:7239)
 03-18 12:59:18.592: E/AndroidRuntime(2010):    at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2168)
 03-18 12:59:18.592: E/AndroidRuntime(2010):    at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:1903)
 03-18 12:59:18.592: E/AndroidRuntime(2010):    at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2174)
 03-18 12:59:18.592: E/AndroidRuntime(2010):    at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:1917)
 03-18 12:59:18.592: E/AndroidRuntime(2010):    at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2174)
 03-18 12:59:18.592: E/AndroidRuntime(2010):    at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:1917)
 03-18 12:59:18.592: E/AndroidRuntime(2010):    at com.android.internal.policy.impl.PhoneWindow$DecorView.superDispatchTouchEvent(PhoneWindow.java:1953)
 03-18 12:59:18.592: E/AndroidRuntime(2010):    at com.android.internal.policy.impl.PhoneWindow.superDispatchTouchEvent(PhoneWindow.java:1405)
 03-18 12:59:18.592: E/AndroidRuntime(2010):    at android.app.Activity.dispatchTouchEvent(Activity.java:2410)
 03-18 12:59:18.592: E/AndroidRuntime(2010):    at com.android.internal.policy.impl.PhoneWindow$DecorView.dispatchTouchEvent(PhoneWindow.java:1901)
 03-18 12:59:18.592: E/AndroidRuntime(2010):    at android.view.View.dispatchPointerEvent(View.java:7419)
 03-18 12:59:18.592: E/AndroidRuntime(2010):    at android.view.ViewRootImpl.deliverPointerEvent(ViewRootImpl.java:3220)
 03-18 12:59:18.592: E/AndroidRuntime(2010):    at android.view.ViewRootImpl.deliverInputEvent(ViewRootImpl.java:3165)
 03-18 12:59:18.592: E/AndroidRuntime(2010):    at android.view.ViewRootImpl.doProcessInputEvents(ViewRootImpl.java:4292)
 03-18 12:59:18.592: E/AndroidRuntime(2010):    at android.view.ViewRootImpl.enqueueInputEvent(ViewRootImpl.java:4271)
 03-18 12:59:18.592: E/AndroidRuntime(2010):    at android.view.ViewRootImpl$WindowInputEventReceiver.onInputEvent(ViewRootImpl.java:4363)
 03-18 12:59:18.592: E/AndroidRuntime(2010):    at android.view.InputEventReceiver.dispatchInputEvent(InputEventReceiver.java:179)
 03-18 12:59:18.592: E/AndroidRuntime(2010):    at android.os.MessageQueue.nativePollOnce(Native Method)
 03-18 12:59:18.592: E/AndroidRuntime(2010):    at android.os.MessageQueue.next(MessageQueue.java:125)
 03-18 12:59:18.592: E/AndroidRuntime(2010):    at android.os.Looper.loop(Looper.java:124)
 03-18 12:59:18.592: E/AndroidRuntime(2010):    at android.app.ActivityThread.main(ActivityThread.java:5039)
 03-18 12:59:18.592: E/AndroidRuntime(2010):    at java.lang.reflect.Method.invokeNative(Native Method)
 03-18 12:59:18.592: E/AndroidRuntime(2010):    at java.lang.reflect.Method.invoke(Method.java:511)
 03-18 12:59:18.592: E/AndroidRuntime(2010):    at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:793)
 03-18 12:59:18.592: E/AndroidRuntime(2010):    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:560)
 03-18 12:59:18.592: E/AndroidRuntime(2010):    at dalvik.system.NativeStart.main(Native Method)
 03-18 12:59:21.032: I/Process(2010): Sending signal. PID: 2010 SIG: 9
 03-18 12:59:21.672: E/Trace(2031): error opening trace file: No such file or directory (2)
4

3 回答 3

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适配器的内容发生了变化，但 ListView 没有收到通知。

此问题意味着您的 basicAdapter 尝试适应 listView 的数据已更改，显然意味着您itemDetailsrrayList的数据不包含相同的数据。

我想你正在你的活动中操纵这个列表。

这很正常，您应该做的是通过使用适配器调用adapter.notifyDataSetChanged()活动的 onResume 回调来通知适配器。

于 2013-03-18T13:55:37.747 回答
0

我认为这个问题是你正在更新你Adapter的 UI 线程，它导致了你的异常。

我想您需要确保仅从 UI Thread 使用 UI 元素进行操作。如果您使用的是 AsyncTask ，那么您需要调用

adapter.notifyDataSetChanged();

在onProgressUpdate()或onPostExecute()方法

于 2013-03-18T13:59:42.940 回答
0

这是我得到 ItemListAdapter.java 的正确代码

 public synchronized   void refreshAdapter(ArrayList<Recipedetails> items) {
    //itemDetailsrrayList.clear();
    itemDetailsrrayList = items;
   notifyDataSetChanged();
}

在 mylistviewactivity.java 中

private void refreshYourAdapter(final ArrayList<Recipedetails> items) {

//这就是我的意思。该错误清楚地表明您没有更新 UI 线程上的适配器 runOnUiThread(new Runnable() { public void run() { _itemListAdapter.refreshAdapter(items); } }); } 和

@Override

protected void onResume() { super.onResume(); _itemListAdapter = new ItemListBaseAdapter(this, image_details); refreshYourAdapter(GetSearchResults()); lv1.setAdapter(_itemListAdapter);

} we have to add these things in your listview activity it will works very fine and remove static in idemlistadapter

于 2013-03-20T10:39:17.587 回答