diff --git a/README.md b/README.md
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--- a/README.md
+++ b/README.md
@@ -1,2 +1,193 @@
-# YXFilmSelectView
-仿时光网 选票UI
+##一、项目简介
+该项目利用UIScrollView的各种滚动事件的监听，仿造时光网选择电影票的UI而开发的一个自定义View。使用简单，可扩展性很强。具备点击每个Item进行选票功能，选票居中功能，滑动时自动选择距离中间最近的View处于选中状态，而且对于滑动时松开手的时候是否有初始速度进行了区分处理。案例演示如下：<br/>![仿时光网选票UI](http://img.my.csdn.net/uploads/201601/05/1451968837_3300.gif)
+
+##二、项目讲解
+####1、初始化UIScrollView中每个Item的View，把每个View放到_viewArray数组中，方便接下来的定位和管理。每一个View中包含一个UIImageView，把每一个UIImageView放在_imageViewArray数组中，方便接下来的进行随着滑动的放大和缩小操作。
+
+```
+-(instancetype)initViewWithImageArray:(NSArray *)imageArray{
+if (!imageArray) {
+return nil;
+}
+if (imageArray.count<1) {
+return nil;
+}
+
+NSInteger totalNum = imageArray.count;
+self = [super initWithFrame:CGRectMake(0, 40, SCREEN_WIDTH, 120)];
+if (self) {
+_scrollview = [[UIScrollView alloc] initWithFrame:self.bounds];
+_scrollview.contentSize = CGSizeMake(LEFT_SPACE*2+SELECT_VIEW_WIDTH+(totalNum-1)*NORMAL_VIEW_WIDTH+(totalNum-1)*ITEM_SPACE, 120);
+_scrollview.delegate = self;
+_scrollview.showsHorizontalScrollIndicator = NO;
+_scrollview.decelerationRate = UIScrollViewDecelerationRateFast;
+[self addSubview:_scrollview];
+
+UIView *backView = [[UIView alloc] initWithFrame:CGRectMake(-SCREEN_WIDTH, 0, _scrollview.contentSize.width+SCREEN_WIDTH*2, _scrollview.contentSize.height-20)];
+backView.backgroundColor = [UIColor lightGrayColor];
+[_scrollview addSubview:backView];
+
+_imageViewArray = [NSMutableArray array];
+_viewArray = [NSMutableArray array];
+
+CGFloat offsetX = LEFT_SPACE;
+for (int i=0; i<totalNum; i++) {
+
+UIView *view = [[UIView alloc] initWithFrame:CGRectMake(offsetX, 0, NORMAL_VIEW_WIDTH, NORMAL_VIEW_HEIGHT)];
+[_scrollview addSubview:view];
+[_viewArray addObject:view];
+offsetX += NORMAL_VIEW_WIDTH+ITEM_SPACE;
+
+
+CGRect rect;
+if (i==0) {
+rect = CGRectMake(-(SELECT_VIEW_WIDTH-NORMAL_VIEW_WIDTH)/2, 0, SELECT_VIEW_WIDTH, SELECT_VIEW_HEIGHT);
+}else{
+rect = CGRectMake(0, 0, NORMAL_VIEW_WIDTH, NORMAL_VIEW_HEIGHT);
+}
+UIImageView *imageView = [[UIImageView alloc] initWithFrame:rect];
+imageView.image = imageArray[i];
+imageView.tag = i;
+imageView.userInteractionEnabled = YES;
+UITapGestureRecognizer *tap = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(clickImage:)];
+[imageView addGestureRecognizer:tap];
+[view addSubview:imageView];
+[_imageViewArray addObject:imageView];
+}
+
+}
+return self;
+}
+```
+####2、在滑动的过程中，我们实时的需要改变计算哪一个Item距离中间最近，在过渡到最中间的过程中，选中的Item距离中间越近，选中Item的frame越大，反则越小。
+
+```
+-(void)scrollViewDidScroll:(UIScrollView *)scrollView{
+int currentIndex = scrollView.contentOffset.x/(NORMAL_VIEW_WIDTH+ITEM_SPACE);
+if (currentIndex>_imageViewArray.count-2||currentIndex<0) {
+return;
+}
+int rightIndex = currentIndex+1;
+UIImageView *currentImageView = _imageViewArray[currentIndex];
+UIImageView *rightImageView = _imageViewArray[rightIndex];
+
+
+CGFloat scale =  (scrollView.contentOffset.x-currentIndex*(NORMAL_VIEW_WIDTH+ITEM_SPACE))/(NORMAL_VIEW_WIDTH+ITEM_SPACE);
+
+//NSLog(@"%f",scale);
+
+CGFloat width = SELECT_VIEW_WIDTH-scale*(SELECT_VIEW_WIDTH-NORMAL_VIEW_WIDTH);
+CGFloat height = SELECT_VIEW_HEIGHT-scale*(SELECT_VIEW_HEIGHT-NORMAL_VIEW_HEIGHT);
+if (width<NORMAL_VIEW_WIDTH) {
+width = NORMAL_VIEW_WIDTH;
+}
+if (height<NORMAL_VIEW_HEIGHT) {
+height = NORMAL_VIEW_HEIGHT;
+}
+if (width>SELECT_VIEW_WIDTH) {
+width = SELECT_VIEW_WIDTH;
+}
+if (height>SELECT_VIEW_HEIGHT) {
+height = SELECT_VIEW_HEIGHT;
+}
+CGRect rect = CGRectMake(-(width-NORMAL_VIEW_WIDTH)/2, 0, width, height);
+currentImageView.frame = rect;
+
+width = NORMAL_VIEW_WIDTH+scale*(SELECT_VIEW_WIDTH-NORMAL_VIEW_WIDTH);
+height = NORMAL_VIEW_HEIGHT+scale*(SELECT_VIEW_HEIGHT-NORMAL_VIEW_HEIGHT);
+if (width<NORMAL_VIEW_WIDTH) {
+width = NORMAL_VIEW_WIDTH;
+}
+if (height<NORMAL_VIEW_HEIGHT) {
+height = NORMAL_VIEW_HEIGHT;
+}
+if (width>SELECT_VIEW_WIDTH) {
+width = SELECT_VIEW_WIDTH;
+}
+if (height>SELECT_VIEW_HEIGHT) {
+height = SELECT_VIEW_HEIGHT;
+}
+rect = CGRectMake(-(width-NORMAL_VIEW_WIDTH)/2, 0, width, height);
+NSLog(@"%@",NSStringFromCGRect(rect));
+rightImageView.frame = rect;
+}
+
+```
+####3、点击某一个Item，让Item处于中间选中状态。
+
+```
+-(void)clickImage:(UITapGestureRecognizer *)tap{
+UIImageView *imageView = (UIImageView *)tap.view;
+NSInteger tag = imageView.tag;
+
+UIView *containerView = _viewArray[tag];
+
+CGFloat offsetX = CGRectGetMidX(containerView.frame)-SCREEN_WIDTH/2;
+
+
+[_scrollview scrollRectToVisible:CGRectMake(offsetX, 0, SCREEN_WIDTH, 120) animated:YES];
+
+if (_delegate && [_delegate respondsToSelector:@selector(itemSelected:)]) {
+[_delegate itemSelected:tag];
+}
+
+}
+```
+####4、当用户在滑动结束，并具有初始速度的时候，当滑动停止的时候，我们需要把距离中间最近Item定位到最中间。
+
+```
+-(void)scrollViewDidEndDecelerating:(UIScrollView *)scrollView{
+int currentIndex = roundf(scrollView.contentOffset.x/(NORMAL_VIEW_WIDTH+ITEM_SPACE));
+UIView *containerView = _viewArray[currentIndex];
+CGFloat offsetX = CGRectGetMidX(containerView.frame)-SCREEN_WIDTH/2;
+[_scrollview scrollRectToVisible:CGRectMake(offsetX, 0, SCREEN_WIDTH, 120) animated:YES];
+if (_delegate && [_delegate respondsToSelector:@selector(itemSelected:)]) {
+[_delegate itemSelected:currentIndex];
+}
+}
+```
+####5、当用户在滑动结束的时候，但是没有初始速度的时候，此时不会触发-(void)scrollViewDidEndDecelerating:(UIScrollView *)scrollView方法，我们需要在-(void)scrollViewDidEndDragging:(UIScrollView *)scrollView willDecelerate:(BOOL)decelerate方法中，进行处理。
+
+```
+-(void)scrollViewDidEndDragging:(UIScrollView *)scrollView willDecelerate:(BOOL)decelerate{
+if (!decelerate) {
+int currentIndex = roundf(scrollView.contentOffset.x/(NORMAL_VIEW_WIDTH+ITEM_SPACE));
+UIView *containerView = _viewArray[currentIndex];
+CGFloat offsetX = CGRectGetMidX(containerView.frame)-SCREEN_WIDTH/2;
+[_scrollview scrollRectToVisible:CGRectMake(offsetX, 0, SCREEN_WIDTH, 120) animated:YES];
+if (_delegate && [_delegate respondsToSelector:@selector(itemSelected:)]) {
+[_delegate itemSelected:currentIndex];
+}
+}
+}
+```
+####6、注意点，设置_scrollview.decelerationRate = UIScrollViewDecelerationRateFast;减慢UIScrollView滑动速度。会使用户体验更好。
+
+##三、项目使用
+####1、本项目支持CocosPod，引用工程代码如下：
+
+```
+pod 'YXFilmSelectView', '~> 0.0.1'
+```
+####2、使用方法
+
+```
+YXFilmSelectView *filmSelectView = [[YXFilmSelectView alloc] initViewWithImageArray:imageArray];
+filmSelectView.delegate = self;
+[self.view addSubview:filmSelectView];
+```
+####3、提供YXFilmSelectViewDelegate代理，用于每一个Item处于选中状态的处理。
+
+```
+- (void)itemSelected:(NSInteger)index{
+_containerView.backgroundColor = _colorArray[index%_colorArray.count];
+_showLabel.text = [NSString stringWithFormat:@"%zi",index];
+}
+```
+
+##四、Demo下载地址
+[Demo下载地址](https://github.com/yixiangboy/YXFilmSelectView)<br/>如果对你有点帮助，star一下吧。
+
+
+##五、联系方式
+微博：[新浪微博](http://weibo.com/5612984599/profile?topnav=1&wvr=6)<br/>博客：[http://blog.csdn.net/yixiangboy ](http://blog.csdn.net/yixiangboy)<br/>github：[https://github.com/yixiangboy](https://github.com/yixiangboy)
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