.m文件中实现的代码如下：

import "YHBaseHeaderAnimatedViewController.h"

@interface YHBaseHeaderAnimatedViewController ()
{

//承载视图
UIView * _privteBGHeaderView;
//宽高比例
CGFloat _privteRate;
//原始宽高
CGFloat _privteOriWidth;
CGFloat _privteOriHeught;
UIVisualEffectView * _blurView;
UINavigationBar * _naviBar;

}
@end

@implementation YHBaseHeaderAnimatedViewController

• (void)viewDidLoad {
  [super viewDidLoad];
  self.view.backgroundColor = [UIColor whiteColor];
  self.edgesForExtendedLayout = UIRectEdgeNone;
  _tableView = [[UITableView alloc]initWithFrame:self.view.frame style:UITableViewStylePlain];
  [self.view addSubview:_tableView];
  _tableView.delegate=self;
  _tableView.dataSource=self;
  [self YHCreatView];
  // Do any additional setup after loading the view.

}

• (void)didReceiveMemoryWarning {
  [super didReceiveMemoryWarning];
  // Dispose of any resources that can be recreated.

}
//对导航进行处理
-(void)viewWillAppear:(BOOL)animated{

[super viewWillAppear:animated];
if (self.navigationController) {
    [self.navigationController setNavigationBarHidden:YES animated:YES];
    [self showNavigationBar];
}

}
-(void)viewWillDisappear:(BOOL)animated{

[super viewWillDisappear:animated];
if (self.navigationController) {
    [self.navigationController setNavigationBarHidden:NO animated:YES];
}

}
-(void)showNavigationBar{

if (_naviBar==nil) {
    _naviBar = [[UINavigationBar alloc]init];
    [self.view addSubview:_naviBar];
    _naviBar.frame = CGRectMake(0, 0, self.view.frame.size.width, 64);
    [_naviBar setBackgroundImage:[UIImage imageNamed:@"clear"] forBarMetrics:UIBarMetricsDefault];
    [_naviBar setShadowImage:[UIImage imageNamed:@"clear"]];
    _naviBar.backgroundColor = [UIColor colorWithRed:1 green:1 blue:1 alpha:0];
    UINavigationItem * item = [[UINavigationItem alloc]initWithTitle:self.title];
    _naviBar.items = @[item];
    item.leftBarButtonItem = [[UIBarButtonItem alloc]initWithTitle:@"返回" style:UIBarButtonItemStyleDone target:self action:@selector(popToLast)];
}
if (self.animatedHeaderView==nil) {
    _naviBar.hidden=YES;
}else{
    _naviBar.hidden=NO;
}

}
-(void)popToLast{

[self.navigationController popViewControllerAnimated:YES];

}
-(void)YHCreatView{

if (self.maxScrollOffset==0) {
    self.maxScrollOffset=40;
}
if (self.minAlpha==0) {
    self.minAlpha = 0.5;
}
if (self.maxBluer==0) {
    self.maxBluer = 1;
}
_privteBGHeaderView = [[UIView alloc]init];
_privteBGHeaderView.backgroundColor = [UIColor clearColor];
self.tableView.backgroundColor = [UIColor clearColor];
_blurView = [[UIVisualEffectView alloc]initWithEffect:[UIBlurEffect effectWithStyle:UIBlurEffectStyleLight]];
[self reloadAnimatedView];

}

-(void)reloadAnimatedView{

CGFloat viewH=0;
CGFloat aniH=0;
for (UIView * view in _privteBGHeaderView.subviews) {
    [view removeFromSuperview];
}
if (self.tableHeaderView) {
    viewH = viewH+self.tableHeaderView.bounds.size.height;
    [_privteBGHeaderView addSubview:self.tableHeaderView];
}
if (self.animatedHeaderView) {
    _privteRate = self.animatedHeaderView.frame.size.width/self.animatedHeaderView.frame.size.height;
    [self.animatedHeaderView addSubview:_blurView];
    _blurView.frame= self.animatedHeaderView.bounds;
    _blurView.alpha=0;
    _privteOriWidth = self.animatedHeaderView.frame.size.width;
    _privteOriHeught = self.animatedHeaderView.frame.size.height;
    if (self.headerHeight!=0) {
        viewH+=self.headerHeight;
        aniH = self.headerHeight;
    }else{
        viewH+=self.view.frame.size.width/self.animatedHeaderView.bounds.size.width*self.animatedHeaderView.frame.size.height;
        aniH = self.animatedHeaderView.bounds.size.height;
    }
    [self.view insertSubview:self.animatedHeaderView atIndex:0];
}
self.tableHeaderView.frame=CGRectMake(0, aniH, self.tableHeaderView.frame.size.width, self.tableHeaderView.frame.size.height);
_privteBGHeaderView.frame=CGRectMake(0, 0, self.view.frame.size.width, viewH);
self.tableView.tableHeaderView = _privteBGHeaderView;

}
-(void)setAnimatedHeaderView:(UIView *)animatedHeaderView{

if (animatedHeaderView==nil) {
    if (_animatedHeaderView) {
        [_animatedHeaderView removeFromSuperview];
    }
}
_animatedHeaderView = animatedHeaderView;

}
-(void)setMinAlpha:(CGFloat)minAlpha{

if (minAlpha<=0) {
    minAlpha=0.001;
}
if (minAlpha>=1) {
    minAlpha=0.999;
}
_minAlpha=minAlpha;

}
-(void)setMaxBluer:(CGFloat)maxBluer{

if (maxBluer<=0) {
    maxBluer = 0.001;
}
if (maxBluer>=1) {
    maxBluer = 0.999;
}
_maxBluer = maxBluer;

}
-(void)setNaviColor:(UIColor *)naviColor{

_naviColor = naviColor;
_naviBar.backgroundColor = naviColor;

}
-(void)setLeftBarButtons:(NSArray *)leftBarButtons{

_naviBar.topItem.leftBarButtonItems = leftBarButtons;
_leftBarButtons = leftBarButtons;

}
-(void)setRightBarButtons:(NSArray *)rightBarButtons{

_naviBar.topItem.rightBarButtonItems = rightBarButtons;
_rightBarButtons = rightBarButtons;

}
-(void)scrollViewDidScroll:(UIScrollView *)scrollView{

if (self.animatedHeaderView==nil) {
    return;
}
if (self.tableView==scrollView) {
    //获取到偏移量 默认两倍
    CGFloat offset = scrollView.contentOffset.y*2;
    //如果小于0 则进行形变拉伸操作
    if (offset<=0) {
        
        if (offset<-self.maxScrollOffset*2) {
           
        }else{
            CGFloat height = _privteOriHeught+abs((int)offset);
            CGFloat width = height*_privteRate;
            self.animatedHeaderView.frame = CGRectMake(self.view.frame.size.width/2-width/2, offset/2, width, height);
        }
        if (_naviBar) {
            if (_naviBar.shadowImage==nil) {
                 [_naviBar setShadowImage:[UIImage imageNamed:@"clear"]];
            }
        }
    }else{
        //如果大于零 进行推出操作
        if (self.animatedlevel==YHBaseHeaderAnimatedLevelSlow) {
            //慢速
            self.animatedHeaderView.frame = CGRectMake(0, -offset/8, self.animatedHeaderView.frame.size.width, self.animatedHeaderView.frame.size.height);
        }else if(self.animatedlevel==YHBaseHeaderAnimatedLevelFast){
            //快速
            self.animatedHeaderView.frame = CGRectMake(0, -offset/2, self.animatedHeaderView.frame.size.width, self.animatedHeaderView.frame.size.height);
        }else{
            //正常
            self.animatedHeaderView.frame = CGRectMake(0, -offset/4, self.animatedHeaderView.frame.size.width, self.animatedHeaderView.frame.size.height);
        }
        //进行渐隐动画处理
        CGFloat tmp = offset/2/_privteOriHeught;
        if (self.alphaAnimated) {
            self.animatedHeaderView.alpha = 1-(1-self.minAlpha)*tmp;
        }
        //进行模糊动画
        if (self.bluerAnimated) {
            _blurView.alpha = self.maxBluer*tmp;
        }
        //进行导航显示
        if (_naviBar) {
            _naviBar.backgroundColor = [_naviBar.backgroundColor colorWithAlphaComponent:tmp];
            if (_naviBar.shadowImage) {
                [_naviBar setShadowImage:nil];
            }
            
        }
    }
    
   
}

}
@end

在使用时，创建一个视图控制器继承于它，在其viewDidLoad方法中进行一些简单的设置即可，如下：

• (void)viewDidLoad {
  [super viewDidLoad];
  // Do any additional setup after loading the view.
  //设置头图
  UIImageView * imageView = [[UIImageView alloc]initWithFrame:CGRectMake(0, 0, self.view.frame.size.width, 200)];
  imageView.image = [UIImage imageNamed:@"image"];
  self.animatedHeaderView = imageView;
  //设置tableView的头视图
  UILabel * label = [[UILabel alloc]initWithFrame:CGRectMake(0, 0, self.view.frame.size.width, 30)];
  label.backgroundColor = [UIColor purpleColor];
  label.textColor = [UIColor whiteColor];
  label.textAlignment =NSTextAlignmentCenter;
  label.text = @"下面进行功能演示";
  self.tableHeaderView = label;
  [self reloadAnimatedView];

}

我写了一个完整的演示Demo，Demo中有完整的功能演示，需要的朋友可以自行下载：http://pan.baidu.com/s/1c1VKT00。