我有两个视图控制器,其中一个(ViewController)有一个名为tableView的表.
我想从我的其他视图控制器(pageView)刷新此表.
我在pageView中试过这个：
ViewController*refresh; [refresh.tableView reloadData];
但这不起作用.
两个视图控制器之间的连接segue是推送segue
我该怎么办？我应该通过故事板segue做到吗？
解决方法
选项1
@类2
@property (nonatomic) BOOL shouldRefresh; // in .h file
- (void)viewWillAppear:(BOOL)animated // in .m file
{
[super viewWillAppear:animated];
if (_shouldRefresh) [self.tableView reloadData];
}
@ Class1的
// Add this in any method where you want it to refresh and push to view ClassTwoController *viewController = [[ClassTwoController alloc] init]; [viewController setShouldRefresh:YES]; [self.navigationController pushViewController:viewController animated:YES];
*更新：
选项2
@Class 2
// Add this line in viewDidLoad in same class you want the tableView to refresh
[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(refreshTableWithNotification:) name:@"RefreshTable" object:nil];
// Add this method just beneath viewDidLoad:
- (void)refreshTableWithNotification:(NSNotification *)notification
{
[self.tableView reloadData];
}
@ Class1的
// Call this when ever you want to refresh the tableView in Class2 [[NSNotificationCenter defaultCenter] postNotificationName:@"RefreshTable" object:nil userInfo:nil];