禁用 uitableviewcell 上的多次点击

我有一个 uitableview 实现了弹出窗口（弹出视图 https://github.com/runway20/PopoverView）当点击某个单元格时，弹出窗口将在屏幕上的任何其他点击时消失。问题是，如果用户双击或重复点击单元格，则会导致显示多个弹出视图实例，然后应用程序将崩溃。我正在寻找一种方法来禁用单元格上的双击并/或者UITableView一般来说，或者有没有办法延迟触摸UITableViewCell有任何想法吗？

我已经尝试过了this https://stackoverflow.com/questions/1031254/how-can-i-detect-a-double-tap-on-a-certain-cell-in-uitableview但它不适用于我的情况。 另一种方法是检查 PopoverView 是否已经存在，如果存在则不允许实例化另一个。我试过this https://stackoverflow.com/questions/2777438/how-to-tell-if-uiviewcontrollers-view-is-visible and this https://stackoverflow.com/questions/5503187/uiview-how-to-find-out-if-a-view-is-already-exists两者都不适用于我的情况。

这是我的代码，我在其中调用弹出窗口视图didSelectRowAtIndexpath:

- (void)tableView:(UITableView *)TableView
didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
   UITableViewCell *cell = [TableView cellForRowAtIndexPath:indexPath];
sti = [[SelectedTeamsInfo alloc] init];
MyLeagueStandings *info = [fetchedResultsController objectAtIndexPath:indexPath];
[sti getAllScheduleForTeam:info.urlforteam];
NSString *title = info.teamname;

// If title length is greater then 32 truncate it to fit.
if (title.length > 32) {
    title = [info.teamname substringToIndex:29];
    title = [title stringByAppendingString:@"..."];
}


[PopoverView showPopoverAtPoint:cell.center inView:self.view withTitle:title withContentView:sti.view delegate:self];
}

SOLUTION:

在接口类中：

 BOOL PopoverYN;

在实现类中：

- (void)tableView:(UITableView *)TableView 
didSelectRowAtIndexPath:(NSIndexPath *)indexPath
    {
        // If the popover is not available then display it else do nothing since one is already displayed.
        if (PopoverYN == NO) {
            PopoverYN = YES;
            UITableViewCell *cell = [TableView cellForRowAtIndexPath:indexPath];
            sti = [[SelectedTeamsInfo alloc] init];
            MyLeagueStandings *info = [fetchedResultsController objectAtIndexPath:indexPath];
            [sti getAllScheduleForTeam:info.urlforteam];
            NSString *title = info.teamname;

            // If title length is greater then 32 truncate it to fit.
            if (title.length > 32) {
                title = [info.teamname substringToIndex:29];
                title = [title stringByAppendingString:@"..."];
            }
            [PopoverView showPopoverAtPoint:cell.center inView:self.view withTitle:title withContentView:sti.view delegate:self];
        }

}

#pragma mark - popover methods.
- (void)popoverViewDidDismiss:(PopoverView *)popoverView;
{
    PopoverYN = NO;
}

我还有一种解决方案。希望这会对某人有所帮助。如果您想检测第二次点击并使用它，那么就是这样，这对我有用。我正在单击加载网页视图，如果连续两次点击，则会出现错误NSURLErrorCancelled事件并导致白色闪屏webview。我可以在 webview 级别处理它，但我认为我应该从根本上解决这个问题。

NSTimer *avoidDoubleTapTimer;

- (void) onTimer {  
    NSLog(@"Timer out");
    avoidDoubleTapTimer = nil;
}

- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
    if(avoidDoubleTapTimer == nil) {
        avoidDoubleTapTimer = [NSTimer scheduledTimerWithTimeInterval:0.3 target:self selector:@selector(onTimer) userInfo:nil repeats:NO];
    } else {
        NSLog(@"Double Tap Detected");
        return;
    }
// do you stuff on single tap
}