本文介绍了如何隐藏导航栏而不会失去滑回功能的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!

问题描述

我有一个UITableView,它有一个导航栏(来自UINavigationViewController),它可以通过用手指向后滑回来。



我试图隐藏导航栏但保持向后滑动的能力,代码:

   - (void)viewWillAppear:(BOOL)animated {
[[self navigationController] setNavigationBarHidden:YES animated:YES];
}

这成功隐藏了导航栏,但我无法再滑回最后一个屏幕。



有没有办法隐藏导航栏但保留回滑功能?

   - (void)viewWillAppear:(BOOL)animated {
[super viewWillAppear:animated];
//隐藏导航栏
[[self navigationController] setNavigationBarHidden:YES animated:YES];

//启用回滚
if([self.navigationController respondsToSelector:@selector(interactivePopGestureRecognizer)]){
self.navigationController.interactivePopGestureRecognizer.enabled = YES;
self.navigationController.interactivePopGestureRecognizer.delegate = self;
}
}


- (BOOL)gestureRecognizerShouldBegin:(UIGestureRecognizer *)gestureRecognizer {
返回YES;
}

在.h文件中,符合UIGestureRecognizerDelegate


I have a UITableView and it has a nav bar(got from UINavigationViewController), it's able to go back by sliding back using a finger.

I tried to hide the nav bar but keep the slide-back ability, code:

- (void)viewWillAppear:(BOOL)animated {
    [[self navigationController] setNavigationBarHidden:YES animated:YES];
}

This successfully hid the nav bar, however, I can no longer slide back to the last screen either.

Is there any way to hide the nav bar but keep the slide-back ability?

解决方案

Found the solution:

- (void)viewWillAppear:(BOOL)animated {
    [super viewWillAppear:animated];
    // hide nav bar
    [[self navigationController] setNavigationBarHidden:YES animated:YES];

    // enable slide-back
    if ([self.navigationController respondsToSelector:@selector(interactivePopGestureRecognizer)]) {
        self.navigationController.interactivePopGestureRecognizer.enabled = YES;
        self.navigationController.interactivePopGestureRecognizer.delegate = self;
    }
}


- (BOOL)gestureRecognizerShouldBegin:(UIGestureRecognizer *)gestureRecognizer {
    return YES;
}

And in .h file, conform to UIGestureRecognizerDelegate

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10-27 01:31