notifyDataSetChanged（）不更新列表视图

问题描述

我是从我的后台方法来更新我的列表视图：

I'm updating my listview from my background method:

 runOnUiThread(new Runnable() {
            public void run() {
                /**
                 * Updating parsed JSON data into ListView
                 * */
                BaseAdapter adapter = new SimpleAdapter(
                        AllProductsActivity.this, productsList,
                        R.layout.list_item, new String[] { TAG_PID,
                                TAG_NAME},
                        new int[] { R.id.pid, R.id.name });
                // updating listview
                if(getListView().getAdapter() == null){ //Adapter not set yet.
                     setListAdapter(adapter);
                     Log.v("ha", "bla");
                }
                else
                { //Already has an adapter
                    adapter.notifyDataSetChanged();
                }
            }
        });

这code被执行：结果
-on第一次加载结果
-on滚动加载更多的内容，在这里我称之为 adapter.notifyDataSetChanged（），但没有成功。

This code is executed:
-on first load
-on scroll to load more content, where I call adapter.notifyDataSetChanged(), but without success.

我如何更新我的code，所以我可以用notifydatasetchanged和新数据添加到当前的数据。

How can I update my code so I can use notifydatasetchanged and add the new data to the current data.

我的整个code：任何帮助AP preciated。

My whole code: http://pastebin.com/cWmday3i Any Help is appreciated.

推荐答案

你写你的code，你应该始终调用方式 setListAdapter ，因为每次可运行时间内部执行runOnUiThread，创建一个新的适配器，可能与新的数据集。唯一的区别 notifyDataSetChanged 和 NotifyDataSetChanged 是第二个不属于Android的API

the way you wrote your code you should always call setListAdapter, because every time the runnable inside runOnUiThread is executed, you create a new Adapter, probably with a new data set. The only difference between notifyDataSetChanged and NotifyDataSetChanged is that the second one does not belong to the Android's API

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