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hynavbarhidden's Introduction

HYNavBarHidden分类


超简单好用的监听滚动,导航条渐隐的UI效果实现(时下最流行的UI效果之一)

由于只有一个类文件,大家使用的时候直接拖进去去使用就好.笔者就不做cocoapods导入了.

使用过程中发现bug请先下载最新版,若bug依旧存在,请及时反馈,谢谢

HYNavBarHidden的优点<通过分类和继承两种方案实现,大家各凭喜好使用,继承方案源码较简单,可以先看继承方案,熟悉实现原理>


1.文件少,代码简洁,不依赖其他第三方库

2.接口简单,使用方便

HYNavBarHidden的使用


1.导入分类或者继承<通过分类和继承两种方案实现,大家各凭喜好使用>

2.使用方法,控制器实现接口方法

  -(void)setKeyScrollView:(UIScrollView * )keyScrollView scrolOffsetY:(CGFloat)scrolOffsetY options:(HYHidenControlOptions)options;

  3.分类方案

  //分类方案 需要在相应的控制器里调用对应的方法 处理导航控制器push和pop操作
  - (void)hy_viewWillAppear:(BOOL)animated;
  - (void)hy_viewWillDisappear:(BOOL)animated;
  - (void)hy_viewDidDisappear:(BOOL)animated;

warning

由于导航控制器有push和pop操作,当有下级控制器时,则两个控制器共用一个导航条.侧滑时,导航条的效果有点瑕疵(边缘侧滑回上个控制器的时候,透明度有闪一下恢复的效果) 解决方案和思路(根据不同的需求自行选择)

1.当前控制器没有下级的控制器,即避免push操作了.

2.禁用手势侧滑.并在view的生命周期方法里面再进行调整恢复导航控制器的样式

3.pop出来的控制器中,隐藏导航条,用自定义的一个view充当导航条。这样可以完美的解决,并且不需要调用分类中 三个生命周期中的方法。(hy_viewWillAppear:, hy_viewWillDisappear,hy_viewDidDisappear:)

效果演示


1.gif

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hynavbarhidden's Issues

message sent to deallocated instance

您好,我想用你这个接口写个效果,可是我只要导入你的类到我的项目 只要导航栏返回的时候就会报message sent to deallocated instance 错误,不清楚什么情况!

引入之后造成野指针

刚刚下载最新的代码 引入后,加入如下代码造成野指针

    self.automaticallyAdjustsScrollViewInsets = NO;
    [self setKeyScrollView:self.collectionView scrolOffsetY:300 options: HYHidenControlOptionLeft | HYHidenControlOptionTitle | HYHidenControlOptionRight];

继承的枚举冲突

在 UIViewController+NavBarHidden 的里面,定义的枚举,还有在控制器里面定义的枚举,这二个枚举是冲突的,为什么你项目中没有冲突???还有为什么二个地方都要写??扩展类里面写了,在继承类里面怎么还写呢???能否解释下?谢谢楼主!!

storyboard添加有问题

我看到demo中有一个用storyboard添加的可以,但是在自己新建一个并在storyboard创建left、title、right的时候就不能隐藏了,只是背景隐藏,后来改为代码创建,就又可以了,没找到原因,求解。。。

不能跳转。

当在一个界面引用了此代码,当再push时,直接崩掉,Bug一堆。

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