我正在用 android 编写一个简单的 xmpp 客户端,但 update 有问题contactList
。我使用MatrixCursor
withSimpleCursorAdapter
来做到这一点。当 prog 更新列表时,它会启动 futureTask 的线程。数据没问题,但屏幕上的列表没有刷新,因为(我认为)这个 futureTask 的线程正在等待执行?
drawContactList
当任何联系人更改状态时,从一个侦听器调用该方法。例如,当我将调用复制到 main 时,它可以完美运行。
知道如何解决吗?
代码:
static ListView contactList;
static MatrixCursor clCursor;
static SimpleCursorAdapter adapterList;
private final String[] matrixCols = new String[] { "_id", "username", "description", "icon" };
private final String[] menuCols = new String[] {"username", "description", "icon" };
private final int[] toWhatId = new int[] { R.id.clUsername, R.id.clDescription, R.id.clStatusIcon };
...
public void drawContactList(ArrayList<Contact> contacts, Context context) {
clCursor = new MatrixCursor(matrixCols);
startManagingCursor(clCursor);
if(contacts != null){
for (Contact contact : contacts) {
clCursor.addRow(new Object[] { contact.id, contact.name, contact.description, contact.icon });
}
}
adapterList = new SimpleCursorAdapter(getApplicationContext(), R.layout.contactlist, clCursor, menuCols, toWhatId);
//in this line futureTask starts
contactList.setAdapter(adapterList);
}