eclipse 在片段和自定义适配器中更新/刷新列表视图
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Update/refresh listview in a fragment & custom adapter
提问by user1521841
What do I need to call from Fragment 1 to force an update/refresh of Fragment 2 when Fragment 2 has code in onActivityCreated()to load the data, create a custom array adapter and set it on a ListView?
当片段 2 有代码onActivityCreated()加载数据、创建自定义数组适配器并将其设置在 ListView 上时，我需要从片段 1 调用什么来强制更新/刷新片段 2 ？
Is there a way to update/refresh the ListView or is the intent to Replace()the Fragment to force it to be rebuilt and rerun the code in onActivityCreated()?
有没有办法更新/刷新 ListView 或者Replace()Fragment的意图是强制它重建并重新运行代码onActivityCreated()？
Here is a snipped of the Fragment 2 onActivityCreated() code:
这是片段 2 onActivityCreated() 代码的片段：
@Override
public void onActivityCreated(Bundle savedInstanceState)
{
super.onActivityCreated(savedInstanceState);
// Get the prepared data and load it into this view
ArrayList<ReportData> oReportResultsData = Report.LoadData(Home.ScheduleJSonData, Home.SelectedDate);
//Set the list into the gridview (Listview formatted with rows/columns)
ScheduledActivityReportGridArrayAdapter myGridArrayAdapter = new ScheduledActivityReportGridArrayAdapter(this.getActivity(), R.layout.homeschedulerow, oReportResultsData);
lstReport.setAdapter(myGridArrayAdapter);
}
I did try to manually call notifyDataSetChanged()on the Fragment Manager in hopes that would force it to reload/refresh Fragment 2. I have reread the docs and many great answers out here but the custom LoadData()method and custom adapter being setup in onActivityCreated()I've not see addressed.
我确实尝试手动调用notifyDataSetChanged()Fragment Manager，希望能强制它重新加载/刷新 Fragment 2。我已经重新阅读了文档和许多很棒的答案，但是我没有看到LoadData()正在设置的自定义方法和自定义适配器onActivityCreated().
Many Thanks!
非常感谢！
回答by Jan-Henk
Your fragments should communicate with each other through the Activity, see http://developer.android.com/guide/components/fragments.html#CommunicatingWithActivity.
您的片段应该通过 Activity 相互通信，请参阅http://developer.android.com/guide/components/fragments.html#CommunicatingWithActivity。
Your first fragment should call a method on the activity, which in turn calls another method on the second fragment, which will then reload your data.
您的第一个片段应该调用 Activity 上的一个方法，该方法又调用第二个片段上的另一个方法，然后该方法将重新加载您的数据。
