iOS导航栏随滑动渐隐渐现且不影响push页面导航栏的实现方式

来源：互联网发布：淘宝老客户维护方案编辑：程序博客网时间：2024/05/16 16:23

//自定义导航栏视图

@property(nonatomic,strong)UIView * naviView;

viewDidLoad中:

if([selfrespondsToSelector:@selector(setEdgesForExtendedLayout:)])
{
[selfsetEdgesForExtendedLayout:UIRectEdgeNone];

}

self.naviView= [[UIViewalloc]initWithFrame:CGRectMake(0,0,YJScreenWidth,64)];
self.naviView.backgroundColor= THEME_Color;
[self.viewaddSubview:self.naviView];

[self.viewbringSubviewToFront:self.naviView];

- (void)viewWillAppear:(BOOL)animated
{
    [superviewWillAppear:animated];
    [self.navigationControllersetNavigationBarHidden:YESanimated:animated];
}

- (void)viewWillDisappear:(BOOL)animated
{
    [superviewWillDisappear:animated];
    [self.navigationControllersetNavigationBarHidden:NOanimated:animated];

}

#pragma mark - scrollViewDelegate
- (void)scrollViewDidScroll:(UIScrollView*)scrollView
{
    CGFloat alpha = scrollView.contentOffset.y/ 100;
    if (alpha >=1) {
        alpha = 1;
    }elseif (alpha <=0)
    {
        alpha = 0;
    }
    self.naviView.backgroundColor= [THEME_ColorcolorWithAlphaComponent:alpha];

}

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