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这是一个棘手的问题，我已经研究了一段时间。我有一个显示在带有选项卡栏的视图中的操作表，有时当我关闭操作表时，它会在选项卡栏中“捕获”并且无法执行任何操作。应用程序不会崩溃，因为如果我将其最小化然后回到它被驳回，它只是看起来模态行为没有被正确驳回。

我最近将操作表的显示方式从“showInView”更改为“showFromTabBar”，但不确定这是否会造成问题。

谢谢，威廉

编辑：

下面是我用来关闭我的操作表的代码：

-(void)doneButtonPressed:(id)sender{



    if ([[self viewWithTag:1] isKindOfClass:[PickerView class]]) {

        PickerView *picker = (PickerView *)[self viewWithTag:1];

        if (picker.selectedRow == nil) {
            [picker populateSelectRowForRow:0 andComponent:0];
        }

        NSNotification *note = [NSNotification notificationWithName:@"doneButtonPressed" object:self.indexPath userInfo:picker.selectedRow];

        [[NSNotificationCenter defaultCenter] postNotification:note];

    }else {

        DatePickerView *picker = (DatePickerView *)[self viewWithTag:1];

        NSDictionary *extraInfo = [[NSDictionary alloc] initWithObjects:[[NSArray alloc] initWithObjects:[self formatDateToString:[picker date]], nil] forKeys:[[NSArray alloc] initWithObjects:@"value", nil]];

        NSNotification *note = [NSNotification notificationWithName:@"doneButtonPressed" object:self.indexPath userInfo:extraInfo];

        [[NSNotificationCenter defaultCenter] postNotification:note];
    }


    [self dismissWithClickedButtonIndex:0 animated:YES];
}

以及被调用的通知方法：

-(void)pickerUpdate:(NSNotification *)note{

    NSIndexPath *indexPath = [note object];
    NSDictionary *extraInfo = [note userInfo];

    NSDictionary *dict = [[tableController.sectionAndFields objectAtIndex:indexPath.section] objectAtIndex:(indexPath.row + kHeaderAndFooterOffset)];

    [tableController.formDetails setObject:[extraInfo objectForKey:@"value"] forKey:[dict objectForKey:@"key"]];

    NSArray *reloadArray = [[NSArray alloc] initWithObjects:indexPath, nil];
    [indexPath release];

    [self.tv reloadRowsAtIndexPaths:reloadArray withRowAnimation:NO];
    [reloadArray release];


}
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1 回答 1

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我确实设法解决了这个问题，但感觉很像黑客，我使用以下方法在代码中引入了延迟：

[self performSelector:@selector(dismissFromActionSheet) withObject:nil afterDelay:0.2];

与dismissFromActionSheet 是：

-(void)dismissFromActionSheet{
 [self dismissWithClickedButtonIndex:0 animated:YES];
}
于 2011-01-13T09:59:38.550 回答