在应用程序中，invitationDidFail 被调用，有时它连接正确，但有时它没有......
拒绝连接的可能原因是什么？
// Display an alert sheet indicating a failure to connect to the peer.
- (void) invitationDidFail:(SessionManager *)session fromPeer:(NSString *)participantID
{
NSString *str;
if (alertView.visible) {
// Peer cancelled invitation before it could be accepted/rejected
// Close the invitation dialog before opening an error dialog
[alertView dismissWithClickedButtonIndex:0 animated:NO];
[alertView release];
str = [NSString stringWithFormat:@"%@ is busy.\nPlease again", participantID];
//[peerList removeAllObjects];
[self peerListDidChange:nil];
[self.tableData reloadData];
//[self TwoPlayer:self];
} else {
// Peer rejected invitation or exited app.
str = [NSString stringWithFormat:@"%@ is busy.\nPlease try again", participantID];
//[peerList removeAllObjects];
[self peerListDidChange:nil];
[self.tableData reloadData];
//[self TwoPlayer:self];
}
}
即使它不调用此方法，也可以确定该设备未与任何其他设备配对，那么有时它确实接受并调用didReceivedInvitation 方法，或者有时它通过调用invitationDidFail 拒绝的原因是什么。
// Invitation dialog due to peer attempting to connect.
- (void) didReceiveInvitation:(SessionManager *)session fromPeer:(NSString *)participantID;
{
[alertView dismissWithClickedButtonIndex:1 animated:NO];
NSString *str = [NSString stringWithFormat:@"Incoming Invite from %@", participantID];
if (alertView.visible) {
[alertView dismissWithClickedButtonIndex:0 animated:NO];
[alertView release];
}
alertView = [[UIAlertView alloc]
initWithTitle:str
message:@"Do you wish to accept?"
delegate:self
cancelButtonTitle:@"Decline"
otherButtonTitles:nil];
[alertView addButtonWithTitle:@"Accept"];
[alertView show];
}