设置上一级controller的backBarButtonItem

 

设置上一级controller的backBarButtonItem. self.navigationItem.backBarButtonItem= [[UIBarButtonItem alloc]initWithTitle:@"返回"                                                                            style:UIBarButtonItemStylePlain                                                                           target:nil                                                                                                                                                   action:@selector(back_event:)]; 

 

转载于:https://www.cnblogs.com/Cheetah-yang/p/4699614.html

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