更改SLComposeServiceViewController上的按钮标题？

Question

有没有办法更改SLComposeServiceViewController上的按钮标题？我试图更改导航项上的条形按钮项,但这些项不是正确的按钮.

Answer 1

只需从navigationController访问!.navigationBar即可实现魅力.以下应该有所帮助.

self.navigationController!.navigationBar.topItem!.rightBarButtonItem!.title = "Save"

Answer 2

我刚刚找到了一种方法：

class CustomServiceViewController: SLComposeServiceViewController {
    override func viewDidLoad() {
        let navigationBar = view.subviews.first?.subviews?.last? as? UINavigationBar
        let postButton = navigationBar?.subviews.last? as? UIButton
        let cancelButton = navigationBar?.subviews.last? as? UIButton
        postButton?.setTitle("Done", forState: .Normal)
    }
}

请注意 - 这是一个脆弱的解决方案，基于未记录的内部结构SLComposeServiceViewController