在我的AmazingListView中選擇項目時出現以下錯誤。我通過AsyncTask(inBackround())加載數據,每調用20個項目並調用adapter.notifyDataSetChanged()方法onPostExecute。該列表加載時沒有任何問題,當我在加載列表後選擇一個項目時,我沒有任何問題......我只在列表加載期間選擇項目時出現此錯誤。在AmzingListView here中打開了一個問題,但這兩個解決方案都沒有幫助我。任何想法都會被處理。使用AsyncTask加載AmazingListView時出錯
錯誤:
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(2131034170, class com.foound.widget.AmazingListView) with Adapter(class android.widget.HeaderViewListAdapter)]
代碼:
private ArrayList<object> list;
private class AsyncTask extends AsyncTask<Void, object, Void>
{
@Override
protected void onPreExecute()
{
list = populatList();
super.onPreExecute();
}
@Override
protected Void doInBackground(Void... urls)
{
Log.i("CallLogActivity", "CallLog is Loading");
for (int i = 0; i < list.size(); i++)
{
String str = getString();
boolean bool = getBoolean();
Object c = new Object(str,bool);
publishProgress(c);
}
//Doing Work Here!!
return null;
}
@Override
protected void onPostExecute(Void result)
{
adapter.notifyDataSetChanged();
}
@Override
protected void onProgressUpdate(object... object)
{
count++
updatelist(object);
if (adapter != null)
{
if (count > 20)
{
adapter.notifyDataSetChanged();
count = 0;
}
}
super.onProgressUpdate(object);
}
}
你是否在你的「做工」代碼中更改適配器的內容? (因爲我注意到你的postExecute是'Void') – Tom
是的我在「做功」期間改變了適配器的內容,我發現它一直在更新。問題是當我在列表中選擇項目時。 – user1163234
您是否檢查過錯誤消息是否始終沒有說出真相 - 作爲第一步,將代碼中將適配器更改爲runOnUIThread(Runnable ...)的部分。 (http://developer.android.com/reference/android/app/Activity.html#runOnUiThread(java.lang.Runnable)) – Tom