滚动时ListView项目计数更改时出现IllegalStateException

Question

我知道在ListViews中有很多关于IllegalStateExceptions的帖子，但没有解决方案适合我。希望有人能帮助我找出我做错了什么。

发生了什么事？

当我的SharedPreferences中的某个属性被更新时，我更新了为ListView提供数据的ArrayList，并通知ListView。当ListView中的项目数量发生变化且用户正在滚动时，仅在Android 4 （从未在Android 2.3上）抛出IllegalStateException 更新发生时。

IllegalStateException异常

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.view.StatusActivity$StatusAdapter)]
at android.widget.ListView.layoutChildren(ListView.java:1545)
at android.widget.AbsListView$FlingRunnable.run(AbsListView.java:4082)
[...]

守则

这是有关活动的最小版本。 ListView更新是从onSharedPreferenceChanged触发的，我还确保在UI线程上执行更新（而不是IllegalStateException建议的那样）。

public class StatusActivity extends Activity implements OnSharedPreferenceChangeListener {

    private ArrayList<Status> stati;
    private ListView listview;
    private SharedPreferences prefs;
    private StatusAdapter adapter;

    private static final int TYPE_STATUS = 0;

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_status);
        prefs = PreferenceManager.getDefaultSharedPreferences(getApplicationContext());
        prefs.registerOnSharedPreferenceChangeListener(this);

        listview = (ListView) findViewById(R.id.list);

        adapter = new StatusAdapter();
    }

    public void onResume(){
        super.onResume();
        updateList();
    }

    public void updateList(){
        StatusDAO.initialize(this);
        stati = (ArrayList<Status>) StatusDAO.readAll();
        adapter.notifyDataSetChanged();

        listview.invalidateViews();
        listview.refreshDrawableState();
    }

    private class StatusAdapter extends BaseAdapter {

        private Status current;

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

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

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

        public int getItemViewType(int position) {
                return TYPE_STATUS;
        }

        public int getViewTypeCount() {
                return 1;
        }

        public boolean isEnabled(int position) {
            return false;
        }

        public View getView(int position, View convertView, ViewGroup parent) {

            if(convertView == null) {
                    final LayoutInflater inflater = LayoutInflater.from(StatusActivity.this);
                    final int layout = R.layout.item_status;
                    convertView = inflater.inflate(layout, parent, false);
            } 


            // [..]

            return convertView;
        }

    }

    public void onSharedPreferenceChanged(SharedPreferences sharedPreferences, String key) {
        if(key.equals(Configuration.PREF_LOADINGSTATUS)){   
            runOnUiThread(new Runnable() {
                public void run() {
                    updateList();
                }
            });
        }
    }

}

我不知道如何解决这个问题，因为我已经尝试了互联网上建议的所有内容（确保数据集的更新发生在UI线程上;调用notifyDataSetChanged（）; ...）。 / p>

我将非常感谢您的帮助和建议，感谢任何帮助！