swift - 将 destructiveButtonTitle 移动到 UIActionSheet 的底部

Question

我希望将取消按钮移到操作表的底部，成为用户可以使用的最后一个按钮。我有这段代码:

func openImagePicker(
    actionSheetTitle:String="Choose Image Source",
    cancelTitle:String="Cancel",
    cameraTitle:String="Camera",
    galleryTitle:String="Gallery",
    isImage:Bool=true,
    isMultipleSelection:Bool=false,
    completeHandler:(success:Bool,arrAssert:[TCAsset])->Void,
    failurer:((error:String)->(Void))?=nil)
{

    let actionSheet=UIActionSheet(title: actionSheetTitle, delegate:self, cancelButtonTitle:nil, destructiveButtonTitle:cancelTitle,otherButtonTitles: cameraTitle, galleryTitle)

    if UIDevice.currentDevice().userInterfaceIdiom == .Phone
    {
        actionSheet.showInView(UIApplication.sharedApplication().keyWindow!)
    }
    else
    {
        let appDel = UIApplication.sharedApplication().delegate as? AppDelegate


        actionSheet.showInView((appDel?.window?.rootViewController?.view)!)
    }

当前显示的操作表如下:

我怎样才能使取消按钮成为列表中的最后一个按钮？

谢谢:)

Answer 1

我觉得对此有一个非常简单的答案:

您可以使用 destructiveButtonIndex 将 destructiveButton 的索引设置为您想要的任何位置。

actionSheet.destructiveButtonIndex = 2;