父控制器通知子控制器做事情

SCAllOrderViewController *redController = [[SCAllOrderViewController alloc] init];

redController.tag=1;

[redController setTitle:@"全部"];

SCWatiPayViewController *greenController = [[SCWatiPayViewController alloc] init];

greenController.myordervc=self;

[greenController setTitle:@"待付款"];

- (void)currentTabHasChanged:(NSInteger)selIndex{

NSLog(@"%d",selIndex);

if(selIndex==1){

NSLog(@"%@",self.delegate);

if([self.delegate respondsToSelector:@selector(MyOrderViewController:didwaitPayBtnclick:)]){

[self.delegate MyOrderViewController:self didwaitPayBtnclick:1];

}

}

}