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backBarButtomItem 这个属性在 navigation Controller 的前一级的视图里设置 在下一级的视图里面才会体现出 "返回" 按钮的名字出现不同
let backButton = UIBarButtonItem(title: "Back", style: UIBarButtonItemStyle.Plain, target: nil, action: nil) self.navigationItem.backBarButtonItem = backButton
其实在文档里就有注释了 // Bar button item to use for the back button in the child navigation item.
[错误总结] backBarButtomItem 设置了没效果
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原文地址:http://www.cnblogs.com/baaingSheep/p/4766154.html