Android ListView ArrayAdapter notifyDataSetChanged（）并非始终有效

Question

I have an application which connect to a remote server and get data from it.

According to this data i do some changes in my ListView connected objects and i'm using the notifyDataSetChanged() method to refresh my ListView and reflect my changes.

Unfortunately the method not always refresh the list.

the onUpdate() supposed to refresh the list.

@Override
public void onUpdate() {
    runOnUiThread(updateClientsInRangeRunnable());  
}

private Runnable updateClientsInRangeRunnable()
{
    Runnable run = new Runnable() {

        @Override
        public void run() {
            updateClientsInRangeList(); 
        }
    };
    return run;
}

public void updateClientsInRangeList()
{
    setClientsInRangeList();
    listArrayAdapter.notifyDataSetChanged();
}

the onUpdate() method is called whenever i want to refresh the list but not always it does it... the changes made are property changes inside the objects the ListView represt but the changes doesn't refresh only when i'm reloading the ListView

is there a reason why ??

Answer 1

从显示的代码很难看出来，但是setClientsInRangeList（）是否有可能实际上没有打开任何新数据？