我正在尝试将用于搜索的电子邮件列表发送到服务器：
List<String> mails = new ArrayList<String>();
mails.add("myMail");
UserSearchManager usm = new UserSearchManager(connection);
Form searchForm = usm.getSearchForm("search.reza-hp");
Form answerForm = searchForm.createAnswerForm();
answerForm.setAnswer("Email", true);
answerForm.setAnswer("search",phoneContacts);
ReportedData data = usm.getSearchResults(answerForm, "search.reza-hp");
但是我得到了这个例外＆gt; IllegalArgumentException：此字段仅接受值列表
任何想法我应该如何准备要发送的列表？
logcat的：
09-06 12:47:07.750: E/AndroidRuntime(9769): java.lang.IllegalArgumentException: This
field only accept list of values.
09-06 12:47:07.750: E/AndroidRuntime(9769): at
org.jivesoftware.smackx.xdata.Form.setAnswer(Form.java:314)
09-06 12:47:07.750: E/AndroidRuntime(9769): at
com.lifemate.lmmessenger.listviewengine.ListViewActivity.
getPhoneContacts(ListViewActivity. java:879)
09-06 12:47:07.750: E/AndroidRuntime(9769): at
com.lifemate.lmmessenger.listviewengine.ListViewActivity.
onViewCreated(ListViewActivity.jav
a:209)
09-06 12:47:07.750: E/AndroidRuntime(9769): at
android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:956)
09-06 12:47:07.750: E/AndroidRuntime(9769): at
android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:1121)
09-06 12:47:07.750: E/AndroidRuntime(9769): at
android.support.v4.app.BackStackRecord.run(BackStackRecord.java:682)
09-06 12:47:07.750: E/AndroidRuntime(9769): at
android.support.v4.app.FragmentManagerImpl.execPendingActions
(FragmentManager.java:1484)