java.lang.IllegalStateException: The content of the adapter has changed but

发现一个有时候会出现的错误：

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(2131165196, class android.widget.ListView) with Adapter(class com.jovision.multiscreen.views.DeviceScanSelectDialog$DeviceAdapter)

需要data.addAll，Adapter.notifyDataSetChanged() 在主线程执行，

data .addAll(data_update) ;
if (data_update_size< 20){
    mListView .setPullLoadEnable(false) ;
}else {
    mListView .setPullLoadEnable(true) ;
}
onLoad();

mAlertAdapter.notifyDataSetChanged();