1.注冊通知
[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(showProgressHud:) name:@"showProgressHud" object:nil];
2.發(fā)送通知
[[NSNotificationCenter defaultCenter] postNotificationName:@"showProgressHud" object:nil userInfo:@{@"string":@"登錄成功"}];
3.實現(xiàn)方法
- (void)showProgressHud:(id)notification {
}
4.移除通知
[[NSNotificationCenter defaultCenter] removeObserver:self name:@"showProgressHud" object:nil];
