如何刷新从一个BroadcastReceiver一个ListView？ [英] How to refresh a ListView from a BroadcastReceiver?

问题描述

如果我称之为 notifyDataSetChanged（）关联到我的ListView自定义适配器上，所有的意见应刷新自理（ getView（）将被调用）。
现在我有一个监听事件一个BroadcastReceiver。当事件触发时，ListView控件必须刷新。我怎样才能做到这一点？
谢谢！

If I call notifyDataSetChanged() on the custom adapter associated to my ListView, all the views should refresh themself (getView() will be called). Now I have a BroadcastReceiver that is listening to an event. When the event fires, the ListView must be refreshed. How can I achieve this? Thanks!

推荐答案

如果您在接收器刷新列表视图你有code是这样的：

If you refresh listview from receiver you'll have code like this:

BroadcastReceiver br;
public final static String BROADCAST_ACTION = "BROADCAST_ACTION";
br = new BroadcastReceiver() {
public void onReceive(Context context, Intent intent) {
//code refreshing...
}
};
IntentFilter intFilt = new IntentFilter(BROADCAST_ACTION);
registerReceiver(br, intFilt);

和你code调用它：

Intent intent = new Intent(BROADCAST_ACTION);
sendBroadcast(intent);

如果您需要的刷新是你只需要添加（动作后）另一个动作：

If you need the refresh to be another action you just need to add (after action):

Intent intent = new Intent(BROADCAST_ACTION);
sendBroadcast(intent);

这篇关于如何刷新从一个BroadcastReceiver一个ListView？的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！