菜鸟程序猿

摘要： NSMutableArray *array = [[NSMutableArray alloc]initWithArray: [self.navigationController viewControllers]]; // 删除栈中的一个viewcontroller [array removeObjectAtIndex:2]; // 清掉栈中的所有viewcontroller并跳到指定viewcontroller [array removeAllObjects]; pxViewController *px = [[pxViewController alloc]init... 阅读全文

摘要： XMPPRoom *room; // 初始化房间 XMPPRoomCoreDataStorage *rosterstorage = [[XMPPRoomCoreDataStorage alloc] init]; if (rosterstorage==nil) { NSLog(@"nil"); rosterstorage = [[XMPPRoomCoreDataStorage alloc] init]; } roomJID = [XMPPJID jidWithString:roomName]; room = [[XMPPRoom alloc] ... 阅读全文