ios11导航栏按钮不适配解决方法

 UIButton *leftbutton=[[UIButton alloc]initWithFrame:CGRectMake(0, 7, 30, 30)];

    

    UIView *containView = [[UIView alloc] initWithFrame:leftbutton.bounds];

    

    [containView addSubview:leftbutton];

  

    [leftbutton setImage:[UIImage imageNamed:@"but_Photograph_press"] forState:UIControlStateNormal];

    

    UIBarButtonItem *leftItem=[[UIBarButtonItem alloc]initWithCustomView:containView];

    

    self.navigationItem.leftBarButtonItem=leftItem;