在iOS 7中更改后退按钮会禁用滑动以返回导航 [英] Changing back button in iOS 7 disables swipe to navigate back

问题描述

我有一个iOS 7应用程序，我在这里设置一个自定义后退按钮：

I have an iOS 7 app where I am setting a custom back button like this:

    UIImage *backButtonImage = [UIImage imageNamed:@"back-button"];
    UIButton *backButton = [UIButton buttonWithType:UIButtonTypeCustom];

    [backButton setImage:backButtonImage forState:UIControlStateNormal];
    backButton.frame = CGRectMake(0, 0, 20, 20);

    [backButton addTarget:self
                   action:@selector(popViewController)
         forControlEvents:UIControlEventTouchUpInside];

    UIBarButtonItem *backBarButtonItem = [[UIBarButtonItem alloc] initWithCustomView:backButton];
    viewController.navigationItem.leftBarButtonItem = backBarButtonItem;

但这会禁用iOS 7从左向右滑动手势以导航到之前的控制器。有谁知道如何设置自定义按钮并仍然保持此手势？

But this disables the iOS 7 "swipe left to right" gesture to navigate to the previous controller. Does anyone know how I can set a custom button and still keep this gesture enabled?

编辑：
我尝试设置viewController.navigationItem.backBarButtonItem，但这似乎没有显示我的自定义图像。

I tried to set the viewController.navigationItem.backBarButtonItem instead, but this doesn't seem to show my custom image.

推荐答案

重要提示：
这是一个黑客。我建议您查看此答案。

致电分配 leftBarButtonItem 之后的以下行为我工作：

Calling the following line after assigning the leftBarButtonItem worked for me:

self.navigationController.interactivePopGestureRecognizer.delegate = self;

修改：
如果在 init 方法。它应该在 viewDidLoad 或类似方法中调用。

This does not work if called in init methods. It should be called in viewDidLoad or similar methods.

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