alertUIAlertView下添加UIActivityIndicatorView, 自动消失AlertView

uploadAlertView= [[UIAlertView alloc] initWithTitle:@"上报中" message:@"请稍等.." 
												   delegate:self cancelButtonTitle:nil otherButtonTitles:nil, nil];
	
UIActivityIndicatorView* activityView = [[UIActivityIndicatorView alloc] initWithActivityIndicatorStyle:UIActivityIndicatorViewStyleWhite];
activityView.frame = CGRectMake(139.0f-18.0f, 80.0f, 27.0f, 27.0f);
[uploadAlertView addSubview:activityView];
[activityView startAnimating];
[activityView release];
[uploadAlertView show];

[uploadAlertView dismissWithClickedButtonIndex:0 animated:YES];