ios - UIBarButtonItem 未触发其操作方法

Question

在 viewDidLoad 中:
- (void)viewDidLoad
{
[ super View DidLoad];

[self.navigationController setNavigationBarHidden:YES animated:NO];

UIToolbar *toolBar = [[UIToolbar alloc] initWithFrame:CGRectMake(0, 0, 320, 44)];
NSMutableArray *toolBarItems = [[NSMutableArray alloc] init];
[toolBarItems addObject:[[UIBarButtonItem alloc] initWithTitle:@"Articles" style:UIBarButtonItemStyleBordered target:self action:@selector(backButtonTapped)]];
[toolBarItems addObject:[[UIBarButtonItem alloc] initWithTitle:@"Source" style:UIBarButtonItemStyleBordered target:self action:nil]];
[toolBarItems addObject:[[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemFlexibleSpace target:self action:nil]];
[toolBarItems addObject:[[UIBarButtonItem alloc] initWithTitle:@"Aa" style:UIBarButtonItemStyleBordered target:self action:nil]];
[toolBarItems addObject:[[UIBarButtonItem alloc] initWithTitle:@"Rabbit" style:UIBarButtonItemStyleBordered target:self action:nil]];
[toolBar setBackgroundImage:[[UIImage alloc] init] forToolbarPosition:UIToolbarPositionAny barMetrics:UIBarMetricsDefault];
toolBar.items = toolBarItems;
[self.view addSubview:toolBar];

方法:

- (void)backButtonTapped {
    [self.navigationController popViewControllerAnimated:YES];
}

我在方法内部的调用上有一个断点，但它永远不会被调用。为什么这个方法永远不会被调用？

Answer 1

我在整个 View 上有一个 UITapGestureRecognizer，它拦截了 UIBarButton 上的点击。感谢this answer，我解决了它，这基本上从一开始就停止了 UITapGestureRecognizer，除非它在 ​​UIToolBar 之外。