Ios 如何在动态添加操作表按钮时获得这些按钮

通常，当我向UIActionSheet静态添加按钮时，如下所示：

UIActionSheet *actionSheet = [[UIActionSheet alloc] initWithTitle:nil delegate:self cancelButtonTitle:@"Cancel" destructiveButtonTitle:nil otherButtonTitles: @"Yu", @"Gi", @"Oh", nil];

ui操作表

的外观将按如下方式分组，而

取消

按钮则是一个单独的组：

但是，由于我需要根据用户操作动态添加按钮，我发现如果我这样做：

UIActionSheet *actionSheet = [[UIActionSheet alloc] initWithTitle:nil delegate:self cancelButtonTitle:@"Cancel" destructiveButtonTitle:nil otherButtonTitles: nil];
    [actionSheet addButtonWithTitle:@"Yu"];
    [actionSheet addButtonWithTitle:@"Gi"];
    [actionSheet addButtonWithTitle:@"Oh"]; //This is just an example, could add more or less

生成的

UIActionSheet

如下所示：

UIActionSheet *actionSheet = [[UIActionSheet alloc] initWithTitle:nil delegate:self cancelButtonTitle:@"Cancel" destructiveButtonTitle:nil otherButtonTitles: nil];
    [actionSheet addButtonWithTitle:@"Yu"];
    [actionSheet addButtonWithTitle:@"Gi"];
    [actionSheet addButtonWithTitle:@"Oh"]; //This is just an example, could add more or less

我如何能够动态添加按钮，但仍然像静态添加按钮一样将它们分组

---

谢谢

您需要像其他按钮一样设置“取消”按钮：

UIActionSheet *actionSheet = [[UIActionSheet alloc] initWithTitle:nil delegate:self cancelButtonTitle:nil destructiveButtonTitle:nil otherButtonTitles: nil];
[actionSheet addButtonWithTitle:@"Yu"];
[actionSheet addButtonWithTitle:@"Gi"];
[actionSheet addButtonWithTitle:@"Oh"]; //This is just an example, could add more or less
actionSheet.cancelButtonIndex = [actionSheet addButtonWithTitle:@"Cancel"];