UItableview滑動刪除iOS 11不刷新/重新加載數據

Question

我是編程新手。下面的代碼使用滑動刪除一行，但在刷新所有行列表後出現。 我有以下代碼：

- (UISwipeActionsConfiguration *)tableView:(UITableView *)tableView trailingSwipeActionsConfigurationForRowAtIndexPath:(NSIndexPath *)indexPath { 
    UIContextualAction *delete = [UIContextualAction contextualActionWithStyle:UIContextualActionStyleDestructive 
                     title:@"DELETE" 
                     handler:^(UIContextualAction * _Nonnull action, __kindof UIView * _Nonnull sourceView, void (^ _Nonnull completionHandler)(BOOL)) { 
                      NSLog(@"index path of delete: %@", indexPath); 
                      completionHandler(YES); 


                     }]; 
    delete.backgroundColor = [UIColor purpleColor]; //arbitrary color 

    UISwipeActionsConfiguration *swipeActionConfig = [UISwipeActionsConfiguration configurationWithActions:@[delete]]; 
    swipeActionConfig.performsFirstActionWithFullSwipe = NO; 

    return swipeActionConfig; 

} 

我使用如下：

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath 
{ 
    FCell = (favouriteCell *)[tableView dequeueReusableCellWithIdentifier:@"favouriteCell"]; 
    FCell.selectionStyle=UITableViewCellSelectionStyleNone; 
    if (FCell == nil) 
    { 
     FCell = [[[NSBundle mainBundle]loadNibNamed:@"favouriteCell" owner:nil options:nil] objectAtIndex:0]; 
    } 

    FCell.nameLBL.text=[[favDetails objectAtIndex:indexPath.row] valueForKey:@"name"]; 
    FCell.poetLBL.text=[[favDetails objectAtIndex:indexPath.row] valueForKey:@"poet"]; 
    return FCell; 

} 

Answer 1

在completionHandler你在哪裏記錄刪除的索引路徑，則需要從數據源中刪除該行（數組等）。否則，當你的表從數據源重新加載時，它會重新出現。

你trailingSwipeActionsConfigurationForRowAtIndexPath代碼應該是這樣的：

- (UISwipeActionsConfiguration *)tableView:(UITableView *)tableView trailingSwipeActionsConfigurationForRowAtIndexPath:(NSIndexPath *)indexPath { 
     UIContextualAction *delete = [UIContextualAction contextualActionWithStyle:UIContextualActionStyleDestructive 
                      title:@"DELETE" 
                      handler:^(UIContextualAction * _Nonnull action, __kindof UIView * _Nonnull sourceView, void (^ _Nonnull completionHandler)(BOOL)) { 
                       NSLog(@"index path of delete: %@", indexPath); 
[favDetails removeObjectAtIndex:indexPath.row];             
completionHandler(YES); 


                      }]; 
     delete.backgroundColor = [UIColor purpleColor]; //arbitrary color 

     UISwipeActionsConfiguration *swipeActionConfig = [UISwipeActionsConfiguration configurationWithActions:@[delete]]; 
     swipeActionConfig.performsFirstActionWithFullSwipe = NO; 

     return swipeActionConfig; 

    } 

作爲行從表中刪除視覺這將會從您的數據源中刪除的對象。