//好友操作事件监听（好友邀请反馈事件：拒绝）
private void OnMembersLeft(object sender, AVIMOnMembersLeftEventArgs e)
{
//排除自身引发的事件
if (e.LeftMembers.First() != AVUser.CurrentUser.ObjectId)
{
App.Current.Dispatcher.Invoke((Action)(async() =>
{
AVIMConversation LeftConversation = await User.GetConversationAsync(e.ConversationId);
AVUser LeftUser = await AVUser.Query.GetAsync(e.LeftMembers.First());
//好友邀请反馈事件：拒绝
if (LeftConversation.IsUnique)
{
new Tip("提醒", LeftUser.Username + "拒绝了您的好友请求");
}
}));
}
}
static void OnMembersLeft(object sender, AVIMOnMembersLeftEventArgs e)
{
}
