如何将 SWRevealVC 与 didSelectRowAtIndexPath 和 prepareForSegue 一起使用？

Question

我在使用 SWRevealViewController 时遇到问题。如何在 didSelectRowAtIndexPath 中调用 prepare for segue？这是必要的，因为在 tableView 中我有类别名称，并且其中一些类别有自己的子类别。例如我的列表：

- category1
- category2
+ category3
- category4

所以，当我点击 + category3 时，我应该会看到

- category1
- category2
+ category3
  - subcategory1
  - subcategory2
- category4

但是因为 prepareForSegue 我不能这样做这是我的代码：

- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath {
    if (indexPath.section <= _categories.count) {
        GDCategory *category = [[_subCategories objectAtIndex:indexPath.section] objectAtIndex:indexPath.row];
        _gdCategory = category;
        if (category.subcategories.count > 0) {
            NSNumber *categoryId = @(category.dbId);
            if ([_selectedSubCategories containsObject:categoryId]) {
                [_selectedSubCategories removeObject:categoryId];
            } else {
                [_selectedSubCategories addObject:categoryId];
            }
            NSLog(@"There are %lu subcategories in %@", (unsigned long)category.subcategories.count, category.name);
            [self recalcSubcategories];
            [tableView reloadData];
        } else {
            //Here I should call prepareForSegue
        }
        NSLog(@"selected category is %@", category.name);
    }
}

- (void)prepareForSegue: (UIStoryboardSegue *)segue sender:(id)sender {
    // configure the destination view controller:
    if ( [sender isKindOfClass:[UITableViewCell class]] ) {
        UINavigationController *navController = segue.destinationViewController;
        GDCategoryVC *categoryVC = [navController childViewControllers].firstObject;
        if ( [categoryVC isKindOfClass:[GDCategoryVC class]] ) {
            categoryVC.selectedCategory = _gdCategory;
        }
    }
}

此外，我无法将数据传递给 VC，因为 prepareForSegue 首先调用。请帮我。谢谢！

Answer 1

//in prepareForSegue method

NSIndexPath *indexPath = [tableView indexPathForSelectedRow];

并且您可以使用 indexPath.row

获取选定的行值

Answer 2

要更改当前视图，您不应调用 prepareForSegue。请改用 performSegueWithIdentifier。 PrepareForSegue 将被自动调用。如果您想将 UITableViewCell 作为发件人传递，您需要从 TableViewDataSource

调用 cellForRowAtIndexPath

else {
            //Here I should call prepareForSegue
            UITableViewCell *cell = [self tableView:tableView cellForRowAtIndexPath:indexPath] //call self if dataSource is implement in your class
           [self performSegueWithIdentifier:segueIdentifier sender:cell] // Insert your identifier for the wished Segue
        }

使用 SWRevealController 时，View 可能会发生应有的变化，但 RevealMenu 仍然可见。对于该问题，您可以致电：

[self.revealViewController setFrontViewPosition:FrontViewPositionLeft animated:YES];

如何将 SWRevealVC 与 didSelectRowAtIndexPath 和 prepareForSegue 一起使用？

How to use SWRevealVC with didSelectRowAtIndexPath and prepareForSegue?

ios

uitableview

uistoryboardsegue

didselectrowatindexpath

swrevealviewcontroller