如何设置只带图片，右边不带文字的返回按钮，我设置title为空之后，但是自己的图片位置偏左

[PengJiang520]

代码

• (void)viewDidLoad {
  [super viewDidLoad];
  // Do any additional setup after loading the view.
  [self setupSubviews];
  // self.hbd_barShadowHidden = YES;
  // self.hbd_barTintColor = [UIColor whiteColor];
  self.hbd_barAlpha = 0.0;
  self.hbd_barStyle = UIBarStyleBlack;
  self.hbd_tintColor = UIColor.whiteColor;
  self.hbd_barShadowHidden = YES;
  self.title = @"";

}

[listenzz]

这是个普遍问题，请搜索其它资料解决。通常有 runtime，BaseViewController 等方法。

[PengJiang520]

我在baseViewController 实现了此处代码，但是侧滑的手势没有响应
// TODO: 当前控制器最前面的一个不存在返回的按钮.
if (self.navigationController.viewControllers.count > 1) {
UIImage *leftImageName = [UIImage imageNamed:@"iv_hvac_back"];
UIButton *backBtn = [UIButton buttonWithType:UIButtonTypeCustom];
[backBtn setFrame:CGRectMake(0, 0, leftImageName.size.width, 40)];
[backBtn setImage:leftImageName forState:UIControlStateNormal];
[backBtn setImage:leftImageName forState:UIControlStateHighlighted];
[backBtn setShowsTouchWhenHighlighted:NO];
[backBtn addTarget:self action:@selector(pb_backToPreviousViewController) forControlEvents:UIControlEventTouchUpInside];
if (ios11_0){
[backBtn setFrame:CGRectMake(0, 0, 40, 40)];
backBtn.contentEdgeInsets=UIEdgeInsetsMake(0, 0, 0, 10);
}
UIBarButtonItem *item = [[UIBarButtonItem alloc] initWithCustomView:backBtn];
self.navigationItem.leftBarButtonItem = item;
}

• (void)pb_backToPreviousViewController {
  if (self.navigationController.presentingViewController){
  [self dismissViewControllerAnimated:YES completion:nil];
  }else{
  [self.navigationController popViewControllerAnimated:YES];
  }
  }

[zhwIdea]

在viewDidLoad中实现：self.navigationController.navigationBar.topItem.title = @"";