ios - performSelectorOnMainThread を使用して変数を他のメソッドに渡す

Question

これらは私が持っている2つの方法です：

-(void)session:(MCSession *)session didStartReceivingResourceWithName:(NSString   *)resourceName fromPeer:(MCPeerID *)peerID withProgress:(NSProgress *)progress

{
NSLog(@"RECEIVING... %@ from peer: %@", progress, peerID);
[self performSelectorOnMainThread:@selector(updateUIWithPeerId:) withObject:nil waitUntilDone:YES];
}

- (void) updateUIWithPeerId:(MCPeerID *)peerID {

UIProgressView *progressBar = [[UIProgressView alloc] initWithProgressViewStyle:UIProgressViewStyleBar];
progressBar.frame = CGRectMake(0, 200, 100, 20);
progressBar.progress = 0.5;
//UIButton* btn = [BluetoothDeviceDictionary objectForKey:peerID];
[self.view addSubview:progressBar];

UIAlertView * alertView = [[UIAlertView alloc] initWithTitle:@"Alert View Title" message:@"Alert View Text" delegate:nil cancelButtonTitle:nil otherButtonTitles:@"OK", nil];
[alertView show];
}

最初の呼び出しは、次のコードで 2 番目を呼び出します。

[self performSelectorOnMainThread:@selector(updateUIWithPeerId:) withObject:nil waitUntilDone:YES];

しかし、この変数を 2 番目のメソッドに渡したいと思います: peerID. 通常、私は次のようにします：

[self updateUIWithPeerId: peerID];

しかし、私はそれを行うことはできませんperformSelectorOnMainThread