Storyboard布局self.navigationItem.backBarButtonItem重写不生效问题
如果使用了Storyboard布局,请在Storyboard中修改,代码修改无效,推测是加载代码和加载Storyboard中backBarButtonItem顺序造成的F84F23B6-16ED-42B4-9BAF-84694D418163.pngB16DD7F5-B0F2-46EA-BFD5-67B4FCA35280.png*注:1.backBarButtonItem在B中显示,在A中设置,A-