动态UIActionSheet 'otherButtonTitles:'

Question

我试图创建一个东西，以列出与设备连接的用户的所有Twitter帐户在UIActionSheet中。例如，我的设备上有三个Twitter帐户。我想要操作表格列出我的帐户并附带取消按钮。目前，我的函数如下：

- (void)showAlertViewForAccounts:(NSArray*)accounts {
    accounts = _.arrayMap(accounts, ^id(ACAccount *account) {
        return account.username;
    });

    UIActionSheet *actionSheet = [[UIActionSheet alloc] initWithTitle:@"Choose an account:"
                                                             delegate:self
                                                    cancelButtonTitle:@"Cancel"
                                               destructiveButtonTitle:nil
                                                    otherButtonTitles:nil];
    for (NSString *username in accounts) {
        [actionSheet addButtonWithTitle:username];
    }    


    [actionSheet showInView:[[[[[UIApplication sharedApplication] delegate] window] rootViewController] view]];
}

我的问题是取消按钮没有显示在操作表的单独“section”中。

有没有办法将accounts数组转换为va_list，以便作为UIActionSheet init...方法的参数传递，或者指定取消按钮应该显示在单独的“section”中？

- HighFlyingFantasy

Answer 1

在其他按钮之后添加“取消”按钮：

- (void)showAlertViewForAccounts:(NSArray*)accounts {
    accounts = _.arrayMap(accounts, ^id(ACAccount *account) {
        return account.username;
    });

    UIActionSheet *actionSheet = [[UIActionSheet alloc] initWithTitle:@"Choose an account:"
                                                             delegate:self
                                                    cancelButtonTitle:nil
                                               destructiveButtonTitle:nil
                                                    otherButtonTitles:nil];
    for (NSString *username in accounts) {
        [actionSheet addButtonWithTitle:username];
    }    

    actionSheet.cancelButtonIndex = [actionSheet addButtonWithTitle:@"Cancel"];  

    [actionSheet showInView:[[[[[UIApplication sharedApplication] delegate] window] rootViewController] view]];
}

- rmaddy

---

太棒了。感谢您的快速回复！ - HighFlyingFantasy

@JoeBlow - 如果你有那么多的代码，最好是发布自己的答案，而不是把它全部添加到我的答案中。 - rmaddy