IOS开展：导航中添加多个button并加入左侧logo

添加多个button，同样只能加入一个

 UIBarButtonItem *anotherButton = [[UIBarButtonItem alloc] initWithTitle:NSLocalizedString(@"register", nil) style:UIBarButtonItemStylePlain target:self action:@selector(registerClick:)];
            UIBarButtonItem *anotherButton2 = [[UIBarButtonItem alloc] initWithTitle:NSLocalizedString(@"login", nil) style:UIBarButtonItemStylePlain target:self action:@selector(loginClick:)];
            [self.navigationItem setRightBarButtonItems:[NSArray arrayWithObjects: anotherButton,anotherButton2,nil]];

加入Logo,仅仅在第一个页面显示，用以下这种方法

self.shareNavleftView = [[UIView alloc] init];
        self.shareNavleftView.frame = CGRectMake(0.0, 0.0, 191.0, 47.0);
        UIImageView *img = [[UIImageView alloc] init];
        img.image = [UIImage imageNamed:@"oatosLogo.png"];
        img.autoresizingMask = UIViewAutoresizingFlexibleWidth;
        img.frame = self.shareNavleftView.frame;
        [self.shareNavleftView addSubview:img];
        self.navigationItem.leftBarButtonItem = [[UIBarButtonItem alloc] initWithCustomView:self.shareNavleftView];

用以下这种方法。则会把Logo加入到后面的每个页面。不符合我的需求

[self.navigationController.view addSubview:self.shareNavleftView];

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