ios - 消失的 editActionsForRowAtIndexPath 动作

Question

editActionsForRowAtIndexPath当我在我的UITableview. 所以我使用了这段代码：

- (BOOL)tableView:(UITableView *)tableView canEditRowAtIndexPath:(NSIndexPath *)indexPath {
    //Obviously, if this returns no, the edit option won't even populate
    return YES;
}

- (void)tableView:(UITableView *)tableView commitEditingStyle:(UITableViewCellEditingStyle)editingStyle forRowAtIndexPath:(NSIndexPath *)indexPath {
    //Nothing gets called here if you invoke `tableView:editActionsForRowAtIndexPath:` according to Apple docs so just leave this method blank
}

-(NSArray *)tableview:(UITableView *)tableView editActionsForRowAtIndexPath:(NSIndexPath *)indexPath
{
    UITableViewRowAction *delete = [UITableViewRowAction rowActionWithStyle:UITableViewRowActionStyleDefault title:@"Delete" handler:^(UITableViewRowAction *action, NSIndexPath *indexPath)
                                    {
                                        // Delete code here
                                    }];

    UITableViewRowAction *changeAmt = [UITableViewRowAction rowActionWithStyle:UITableViewRowActionStyleDefault title:@"Amt" handler:^(UITableViewRowAction *action, NSIndexPath *indexPath)
                                       {
                                           // popover amount change code
                                       }];

    changeAmt.backgroundColor = [UIColor colorWithRed:0.022 green:0.541 blue:0.001 alpha:1.00];


    UITableViewRowAction *changeAcct = [UITableViewRowAction rowActionWithStyle:UITableViewRowActionStyleDefault title:@"Acct" handler:^(UITableViewRowAction *action, NSIndexPath *indexPath)
                                        {
                                            // popover account change code
                                        }];

    changeAcct.backgroundColor = [UIColor colorWithRed:1.000 green:0.492 blue:0.000 alpha:1.00];

    UITableViewRowAction *viewTrans = [UITableViewRowAction rowActionWithStyle:UITableViewRowActionStyleDefault title:@"View" handler:^(UITableViewRowAction *action, NSIndexPath *indexPath)
                                        {
                                            // Push to view
                                        }];
    viewTrans.backgroundColor = [UIColor colorWithRed:0.002 green:0.342 blue:0.710 alpha:1.00];


    return @[delete,changeAmt,changeAcct,viewTrans]; //array with the buttons delete, changeAmt, changeAcct, viewTrans
}

昨天，这段代码产生了这个结果：

今天，我决定通过修改 editActionsForRowAtIndexPath 方法来消除 viewTrans 动作，如下所示：

-(NSArray *)tableview:(UITableView *)tableView editActionsForRowAtIndexPath:(NSIndexPath *)indexPath
{
    UITableViewRowAction *delete = [UITableViewRowAction rowActionWithStyle:UITableViewRowActionStyleDefault title:@"Delete" handler:^(UITableViewRowAction *action, NSIndexPath *indexPath)
                                    {
                                        // Delete code here
                                    }];

    UITableViewRowAction *changeAmt = [UITableViewRowAction rowActionWithStyle:UITableViewRowActionStyleDefault title:@"Amt" handler:^(UITableViewRowAction *action, NSIndexPath *indexPath)
                                       {
                                           // popover amount change code
                                       }];

    changeAmt.backgroundColor = [UIColor colorWithRed:0.022 green:0.541 blue:0.001 alpha:1.00];


    UITableViewRowAction *changeAcct = [UITableViewRowAction rowActionWithStyle:UITableViewRowActionStyleDefault title:@"Acct" handler:^(UITableViewRowAction *action, NSIndexPath *indexPath)
                                        {
                                            // popover account change code
                                        }];

    changeAcct.backgroundColor = [UIColor colorWithRed:1.000 green:0.492 blue:0.000 alpha:1.00];

//    UITableViewRowAction *viewTrans = [UITableViewRowAction rowActionWithStyle:UITableViewRowActionStyleDefault title:@"View" handler:^(UITableViewRowAction *action, NSIndexPath *indexPath)
//                                        {
//                                            // Push to view
//                                        }];
//    viewTrans.backgroundColor = [UIColor colorWithRed:0.002 green:0.342 blue:0.710 alpha:1.00];


    return @[delete,changeAmt,changeAcct]; //array with the buttons delete, changeAmt, changeAcct, viewTrans
}

这个修改后的代码以某种方式具有删除除默认操作之外的所有操作的效果Delete：

所以我取消了代码的注释，并替换了viewTrans该行中对操作的引用return。额外的动作不会再次出现。

这是我修改的唯一代码。有人知道我做错了什么吗？

Answer 1

我一直在处理你的问题，最初，我无法editActionsForRowAtIndexPath调用方法，但后来我发现了一个小问题，也许对你来说是一样的，方法的声明

-(NSArray *)tableview:(UITableView *)tableView editActionsForRowAtIndexPath:(NSIndexPath *)indexPath 

不对，正确的是

- (nullable NSArray<UITableViewRowAction *> *)tableView:(UITableView *)tableView editActionsForRowAtIndexPath:(NSIndexPath *)indexPath

所以我的方法是这样的

- (nullable NSArray<UITableViewRowAction *> *)tableView:(UITableView *)tableView editActionsForRowAtIndexPath:(NSIndexPath *)indexPath
{
    UITableViewRowAction *delete = [UITableViewRowAction rowActionWithStyle:UITableViewRowActionStyleDefault title:@"Delete" handler:^(UITableViewRowAction *action, NSIndexPath *indexPath)
                                    {
                                        // Delete code here
                                    }];

    UITableViewRowAction *changeAmt = [UITableViewRowAction rowActionWithStyle:UITableViewRowActionStyleDefault title:@"Amt" handler:^(UITableViewRowAction *action, NSIndexPath *indexPath)
                                       {
                                           // popover amount change code
                                       }];

    changeAmt.backgroundColor = [UIColor colorWithRed:0.022 green:0.541 blue:0.001 alpha:1.00];


    UITableViewRowAction *changeAcct = [UITableViewRowAction rowActionWithStyle:UITableViewRowActionStyleDefault title:@"Acct" handler:^(UITableViewRowAction *action, NSIndexPath *indexPath)
                                        {
                                            // popover account change code
                                        }];

    changeAcct.backgroundColor = [UIColor colorWithRed:1.000 green:0.492 blue:0.000 alpha:1.00];

    //UITableViewRowAction *viewTrans = [UITableViewRowAction rowActionWithStyle:UITableViewRowActionStyleDefault title:@"View" handler:^(UITableViewRowAction *action, NSIndexPath *indexPath)
    //                                   {
                                           // Push to view
    //                                   }];
    //viewTrans.backgroundColor = [UIColor colorWithRed:0.002 green:0.342 blue:0.710 alpha:1.00];


    return @[delete,changeAmt,changeAcct]; //array with the buttons delete, changeAmt, changeAcct, viewTrans

}

这就是它的样子

我希望这可以帮助你