Question

我正在尝试激活UITableView的编辑模式。当我点击“编辑”按钮时，它会变为“完成”，但圆形的红色减号不会显示在表格中。我发布了下面的一些方法。应用程序委托创建了一个选项卡栏，选项卡内的视图具有导航控制器。一切都是在代码中完成的，很少用nib文件完成。怎么了？

- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section {  
    return [ikub.subscriptions count];  
}
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {  
    int i = [indexPath row];  
    UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:@"cell"];  
    if (cell == nil) {  
        cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleSubtitle reuseIdentifier:@"cell"];  
    }  
    Subscriptions *s = [ikub.subscriptions objectAtIndex:i];  
    cell.textLabel.text         = [s title];  
    cell.detailTextLabel.text   = [NSString stringWithFormat:@"%@ artikuj te rinj, %@ artikujt te lexuar", [s new], [s read]];  
    if (deleteActive) {  
        cell.accessoryType = UITableViewCellAccessoryDetailDisclosureButton;  
    } else {  
        cell.accessoryType = UITableViewCellAccessoryDisclosureIndicator;  
    }  
    return cell;  
}  
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath {  
    Subscriptions *s = [ikub.subscriptions objectAtIndex:[indexPath row]];  
        NSString *address = [[NSString alloc] init];  
        NSString *type = [NSString stringWithString:[s type]];  
        if ([type isEqualToString:@"Category"]) {  
            address = [NSString stringWithFormat:@"http://www.ikub.al/Rss.aspx?node=9e26cdb8-dba6-4504-8bb6-29f0753be179~%@", [s code]];  
        } else if ([type isEqualToString:@"Tag"]) {  
            address = [NSString stringWithFormat:@"http://www.ikub.al/Rss.aspx?tag=%@", [s code]];  
        }
        address = [address stringByAddingPercentEscapesUsingEncoding:NSASCIIStringEncoding];  
        SubscriptionStories *ss = [[SubscriptionStories alloc] init];  
        ss.address = address;  
        ss.title = [s title];  
        [self.navigationController pushViewController:ss animated:YES];  
        [ss release];  
}  
- (void)viewWillAppear:(BOOL)animated {  
    [subscriptionsTable reloadData];  
}  
- (void)viewDidLoad {  
    refreshButton = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemRefresh target:self action:nil];  
    self.navigationItem.leftBarButtonItem = refreshButton;  
    [refreshButton release];  
    self.navigationItem.rightBarButtonItem = self.editButtonItem;  
    [super viewDidLoad];      
}  
- (BOOL)tableView:(UITableView *)tableView canEditRowAtIndexPath:(NSIndexPath *)indexPath {    
    return YES;  
}

Answer 1

继承对它没有任何影响。

当您将navigationController的右按钮指定给它时，可以使用此方法。

- (void)setEditing:(BOOL)editing animated:(BOOL)animated {
    [super setEditing:editing animated:animated];
    [tableView setEditing:editing animated:YES];
}

或者您可以编写一个基本上切换UITableView状态的方法，如

[tableView setEditing:TRUE];

当按钮完成后，将其切换到

[tableView setEditing:FALSE];

Answer 2

您没有正确继承。

你不会从UIViewController中获取任何东西，它只包含视图。我建议你试试UITableViewController。

Answer 3

在哪里编写另一种合适的视图编辑方法喜欢这个

-(void)tableView:(UITableView*)tableView willBeginEditingRowAtIndexPath:(NSIndexPath *)indexPath
{

}

- (UITableViewCellEditingStyle)tableView:(UITableView *)tableView editingStyleForRowAtIndexPath:(NSIndexPath *)indexPath {

    return UITableViewCellEditingStyleDelete;
}

- (void)tableView:(UITableView *)tableView commitEditingStyle:(UITableViewCellEditingStyle)editingStyle forRowAtIndexPath:(NSIndexPath *)indexPath
{
    // If row is deleted, remove it from the list.
    if (editingStyle == UITableViewCellEditingStyleDelete)
    {
        rowNumber = indexPath.row;
        UIActionSheet *registerActionSheet = [[UIActionSheet alloc] initWithTitle:@"Sure You Want To Delete?"delegate:self cancelButtonTitle:@"Cancel" destructiveButtonTitle:nil otherButtonTitles:@"Yes", nil];
        registerActionSheet.actionSheetStyle = UIActionSheetStyleBlackOpaque;
        [registerActionSheet showInView:self.view];
        [registerActionSheet release];
        // delete your data item here
        // Animate the deletion from the table.
        //[self.tableView deleteRowsAtIndexPaths:[NSArray arrayWithObject:indexPath] withRowAnimation:UITableViewRowAnimationFade];
    }
}

Answer 4

固定！不得不从UITableViewController继承而不是UIViewController。

UITableView编辑模式不起作用

4 个答案: