ios - 如何删除tableview中的单元格

Question

请帮帮我。我试图删除表格 View 中的单元格。我是 iOS 开发的初学者。

请帮助我。

- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView{
    int num = [[self.fetchedResultsController sections] count];
    return [[self.fetchedResultsController sections] count]; 
}
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{

    id sectionInfo = [[self.fetchedResultsController sections] objectAtIndex:section];
    NSInteger numberOfRows = [sectionInfo numberOfObjects];

    return numberOfRows;
}
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath   *)indexPath
{
      id cell = [tableView dequeueReusableCellWithIdentifier:@"cell" forIndexPath:indexPath];
      [self configureCell:cell atIndexPath:indexPath];

     return cell;

}
- (void)tableView:(UITableView *)tableView commitEditingStyle:(UITableViewCellEditingStyle)editingStyle forRowAtIndexPath:(NSIndexPath *)indexPath
{
     if (editingStyle == UITableViewCellEditingStyleDelete) {
     // Delete the row from the data source
        [tableView deleteRowsAtIndexPaths:@[indexPath] withRowAnimation:UITableViewRowAnimationFade];
     } 
     else if (editingStyle == UITableViewCellEditingStyleInsert) {
        // Create a new instance of the appropriate class, insert it into the array, and add a new row to the table view
     }
}

方法是在我的单元格中连接类 tableviewcell 有更多详细信息。

- (void)configureCell:(id)cell atIndexPath:(NSIndexPath *)indexPath
{
    BookDetail *bookDetail = [self.fetchedResultsController objectAtIndexPath:indexPath];

    [(storageuser *)cell settingupWithInfo:bookDetail];

}

Answer 1

在 tableView:commitEditingStyle:forRowAtIndexPath: 中，您必须在调用 deleteRowsAtIndexPaths:withRowAnimation: