IllegalStateException：适配器的内容发生了变化但ListView没有收到通知答案

【问题标题】：IllegalStateException:The content of the adapter has changed but ListView did not receive a notificationIllegalStateException：适配器的内容发生了变化但ListView没有收到通知
【发布时间】：2015-05-01 04:14:44
【问题描述】：

直觉上，我知道，当它抛出 IllegalStateException 时。但就我而言，我无法猜测，源头的问题在哪里。我敢说，麻烦线就在那里：

private class LoadMoreDataTask extends AsyncTask<Void, Void, Void> {
    @Override
    protected Void doInBackground(Void... params) {
        if (isCancelled()) {
            return null;
        }
        try {
            Thread.sleep(2000);
        } catch (InterruptedException e) {
        }
        OFFSET = OFFSET + COUNT;
        getWallsData();
        return null;
    }
    @Override
    protected void onPostExecute(Void result) { 

        mPostListAdapter.notifyDataSetChanged();                
        wallPostsList.onLoadMoreComplete();
        super.onPostExecute(result);
    }
    @Override
    protected void onCancelled() {
        wallPostsList.onLoadMoreComplete();
    }

有一条 logcat 消息：

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(2131099757, class com.costum.android.widget.LoadMoreListView) with Adapter(class android.widget.HeaderViewListAdapter)]

【问题讨论】：

标签： android listview illegalstateexception

【解决方案1】：

问题已解决：找到答案 there ！我做了什么？我添加了切换器 Boolean LOADMORE SWITCHER=false;作为全局可见性并替换为 mPostListAdapter.notifyDataSetChanged();从 doInBackground() 到 getWallsData()。

private Boolean LOADMORE SWITCHER=false;
....
private class LoadMoreDataTask extends AsyncTask<Void, Void, Void> {
    @Override
    protected Void doInBackground(Void... params) {
        if (isCancelled()) {
            return null;
        }
        try {
            Thread.sleep(2000);
        } catch (InterruptedException e) {
        }
        OFFSET = OFFSET + COUNT;
        LOADMORE=true;
        getWallsData();
        return null;
    }
    @Override
    protected void onPostExecute(Void result) { 

       // mPostListAdapter.notifyDataSetChanged(); was replaced to getWallsData() body
        wallPostsList.onLoadMoreComplete();
        super.onPostExecute(result);
    }
    @Override
    protected void onCancelled() {
        wallPostsList.onLoadMoreComplete();
    } 
}
.....
getWallsData(){
     ...
     if(LOADMORE){
          mPostListAdapter.notifyDataSetChanged();
          LOADMORE=false;


     }
}

我非常非常高兴地说：我没有这个问题了：

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(2131099757, class com.costum.android.widget.LoadMoreListView) with Adapter(class android.widget.HeaderViewListAdapter)]

【讨论】：