iOS开发总结-图片左右滑动浏览

//
//  PicViewController.m
//  BJ
//
//  Created by shirenfeng on 16/9/13.
//  Copyright © 2016年 com.zybjw. All rights reserved.
//  对比图片浏览
#import "FTMacro.h"
#import "Utilities.h"
#import "PicViewController.h"
#import "DBStrore.h"
//#define kWidthOfScreen [[UIScreen mainScreen] bounds].size.width
//#define kHeightOfScreen ([[UIScreen mainScreen] bounds].size.height-50)
#define kImageViewCount 3
// scrollview Y
#define kScrVStarty 65

// shopname height
#define kShopNameLabelHeight 56
#define kScrVImgStarty 30
#define kScrVHeight (kScreenHeight-kScrVStarty)
// goodsurlbutton width
#define kGoodsUrlBtnWidth 60
// goodsurlbutton height
#define kGoodsUrlBtnHeight 35

@interface PicViewController ()
/**
 *  加载图片数据
 */
- (void)loadImageData;

/**
 *  添加滚动视图
 */
- (void)addScrollView;

/**
 *  添加三个图片视图到滚动视图内
 */
- (void)addImageViewsToScrollView;

/**
 *  添加分页控件
 */
- (void)addPageControl;

/**
 *  根据当前图片索引设置信息
 *
 *  @param currentImageIndex 当前图片索引；即中间
 */
- (void)setInfoByCurrentImageIndex:(NSUInteger)currentImageIndex;

/**
 *  设置默认信息
 */
- (void)setDefaultInfo;

/**
 *  重新加载图片
 */
- (void)reloadImage;

@end

@implementation PicViewController
-(void)initView
{
    [self loadImageData];
    if(_imageCount > ){

        UIButton *rightButton =  [UIButton buttonWithType:UIButtonTypeCustom];
        [rightButton setTitle:@"删除图片" forState:UIControlStateNormal];
        [rightButton setTitleColor:self.view.tintColor forState:UIControlStateNormal];
        rightButton.titleLabel.font = [UIFont systemFontOfSize:];
        [rightButton addTarget:self action:@selector(deletePic) forControlEvents:UIControlEventTouchUpInside];
        [rightButton setFrame:CGRectMake(, , , )];
        UIBarButtonItem *rightBarButtonItem = [[UIBarButtonItem alloc] initWithCustomView:rightButton];

        if ([[[UIDevice currentDevice] systemVersion] floatValue] >= 7.0)
        {
            UIBarButtonItem *negativeSeperator = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemFixedSpace target:nil action:nil];
            negativeSeperator.width = -;
            [self.navigationItem setRightBarButtonItems:@[negativeSeperator, rightBarButtonItem]];
        }
        else
        {
            [self.navigationItem setRightBarButtonItem:rightBarButtonItem animated:NO];
        }

        [self addScrollView];
        [self addImageViewsToScrollView];
        [self addPageControl];
        [self setDefaultInfo];
    }
    else{
        UIButton *info =  [UIButton buttonWithType:UIButtonTypeCustom];
        [info setTitle:@"没有对比截图哦" forState:UIControlStateNormal];
        [info setTitleColor:[UIColor grayColor] forState:UIControlStateNormal];
        [info setTitleColor:[UIColor grayColor] forState:UIControlStateHighlighted];
        [info setContentHorizontalAlignment:UIControlContentHorizontalAlignmentLeft];
        [info setContentVerticalAlignment:UIControlContentVerticalAlignmentCenter];
        info.titleLabel.font = [UIFont systemFontOfSize:];
        [info setFrame:CGRectMake(, , kCapPicWidth, )];
        [self.view addSubview:info];

        UIButton *info2 =  [UIButton buttonWithType:UIButtonTypeCustom];
        [info2 setTitle:@"请通过商品详情页右上角‘加入对比’添加" forState:UIControlStateNormal];
        [info2 setTitleColor:[UIColor grayColor] forState:UIControlStateNormal];
        [info2 setTitleColor:[UIColor grayColor] forState:UIControlStateHighlighted];
        [info2 setContentHorizontalAlignment:UIControlContentHorizontalAlignmentLeft];
        [info2 setContentVerticalAlignment:UIControlContentVerticalAlignmentCenter];
        info2.titleLabel.font = [UIFont systemFontOfSize:];
        [info2 setFrame:CGRectMake(, , kCapPicWidth, )];
        [self.view addSubview:info2];

    }
}
- (void)viewDidLoad {
    [super viewDidLoad];
    // self.view.backgroundColor =[UIColor colorWithRed:1.00 green:1.00 blue:1.00 alpha:1.00];
    // self.view.backgroundColor = [UIColor blackColor];
    /*
    UIButton *backButton =  [[UIButton alloc] initWithFrame:CGRectMake(20, 20, 100, 30)];
    [backButton setContentHorizontalAlignment:UIControlContentHorizontalAlignmentLeft];
    [backButton setTitle:[NSString stringWithFormat:@"返回"] forState: UIControlStateNormal];
    backButton.backgroundColor = [UIColor clearColor];
    [backButton setTitleColor:[UIColor blueColor]forState:UIControlStateNormal];
    backButton.titleLabel.font = [UIFont systemFontOfSize: 15.0];
    [backButton addTarget:self action:@selector(backBtnClick:) forControlEvents:UIControlEventTouchUpInside];

    [self.view addSubview:backButton];
     */
    _currentImageIndex = ;
    [self initView];

    [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(capPicChanged:) name:@"capPicChanged" object:nil];

}
-(void) capPicChanged:(NSNotification*)notify
{
    NSLog(@"picviewcontroller capPicChanged count:%d",[DBStrore sharedDBStore].CapPicArray.count);
    for(UIView *view in [self.view subviews])
    {
        [view removeFromSuperview];
    }
    [self initView];

}

-(void)deletePic
{
    NSLog(@"deleteAllPic");
    if(_capPicArray.count > ){
        UIAlertController * alert = [UIAlertController alertControllerWithTitle:@"" message:@"请选择" preferredStyle:UIAlertControllerStyleActionSheet];
        UIAlertAction * actionAll = [UIAlertAction actionWithTitle:@"删除全部图片" style:UIAlertActionStyleDestructive handler:^(UIAlertAction * _Nonnull action) {
            [self deleteallalert];
            NSLog(@"alertController all 被调用");

        }];
        UIAlertAction * actionCur = [UIAlertAction actionWithTitle:@"删除当前图片" style:UIAlertActionStyleDestructive handler:^(UIAlertAction * _Nonnull action) {
            [self deletecur];
            NSLog(@"alertController cur 被调用");

        }];
        UIAlertAction * actionCancel = [UIAlertAction actionWithTitle:@"取消" style:UIAlertActionStyleCancel handler:^(UIAlertAction * _Nonnull action) {
            NSLog(@"alertController调用取消操作");
        }];

        [alert addAction:actionCur];
        [alert addAction:actionAll];
        [alert addAction:actionCancel];
        [self presentViewController:alert animated:YES completion:nil];
    }
    else{
        //[Utilities showAlertView:@"成功"];
    }
}
-(void)deleteallalert
{
    NSLog(@"deleteallalert");
    if(_capPicArray.count > ){
        UIAlertController * alert = [UIAlertController alertControllerWithTitle:@"" message:@"确定要删除全部对比图片吗？" preferredStyle:UIAlertControllerStyleActionSheet];
        UIAlertAction * actionAll = [UIAlertAction actionWithTitle:@"确定" style:UIAlertActionStyleDestructive handler:^(UIAlertAction * _Nonnull action) {
            [self deleteall];
            NSLog(@"alertController all 被调用");

        }];
        UIAlertAction * actionCancel = [UIAlertAction actionWithTitle:@"取消" style:UIAlertActionStyleCancel handler:^(UIAlertAction * _Nonnull action) {
            NSLog(@"alertController调用取消操作");
        }];
        [alert addAction:actionAll];
        [alert addAction:actionCancel];
        [self presentViewController:alert animated:YES completion:nil];
    }
    else{
        //[Utilities showAlertView:@"成功"];
    }
}

-(void)deleteall
{
    NSFileManager *fileManager=[[NSFileManager alloc] init];
    NSError *error;
    for(int i=;i<_imageCount;i++)
    {
        NSString *imgpath=[self getPicPathByIndex:i];
        NSLog(@"del all imgpath:%@",imgpath);
        if([fileManager fileExistsAtPath:imgpath]){
            [fileManager removeItemAtPath:imgpath error: &error];
            if(error){
                NSLog(@"del all file error = %@",error);
            }
        }

    }
    [[DBStrore sharedDBStore].CapPicArray removeAllObjects];
    NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults];
    NSData *bindUserLocalSettingDictionaryData = [NSKeyedArchiver archivedDataWithRootObject:[DBStrore sharedDBStore].CapPicArray];
    [defaults setObject:bindUserLocalSettingDictionaryData forKey:FTcapPic];
    [defaults synchronize];

    for(UIView *view in [self.view subviews])
    {
        [view removeFromSuperview];
    }
    [self initView];
    //[Utilities showAlertView:@"成功"];
}
-(void)deletecur
{
    NSFileManager *fileManager=[[NSFileManager alloc] init];
    NSError *error;
    for(int i=;i<_imageCount;i++)
    {
        NSString *imgpath=[self getPicPathByIndex:i];
        NSLog(@"del cur imgpath:%@",imgpath);
        if(_currentImageIndex==i && [fileManager fileExistsAtPath:imgpath]){
            [fileManager removeItemAtPath:imgpath error: &error];
            if(error){
                NSLog(@"del cur file error = %@",error);
            }
            break;
        }

    }
    [[DBStrore sharedDBStore].CapPicArray removeObjectAtIndex:_currentImageIndex];
    NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults];
    NSData *bindUserLocalSettingDictionaryData = [NSKeyedArchiver archivedDataWithRootObject:[DBStrore sharedDBStore].CapPicArray];
    [defaults setObject:bindUserLocalSettingDictionaryData forKey:FTcapPic];
    [defaults synchronize];

    for(UIView *view in [self.view subviews])
    {
        [view removeFromSuperview];
    }

    [self initView];
    //[Utilities showAlertView:@"成功"];
}

-(void)backBtnClick:(id)sender
{
    NSLog(@"backBtnClick");
    [[NSNotificationCenter defaultCenter] removeObserver:self];
    [self.navigationController popViewControllerAnimated:YES];
}

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

- (void)loadImageData {
    _capPicArray = [[NSMutableArray alloc] initWithArray:[DBStrore sharedDBStore].CapPicArray];
    _imageCount = _capPicArray.count;
    NSLog(@"loadImageData:count=%d",_capPicArray.count);
}

- (void)addScrollView {
    // _scrV = [[UIScrollView alloc] initWithFrame:[[UIScreen mainScreen] bounds]];
    _scrV = [[UIScrollView alloc] initWithFrame:CGRectMake(kCapPicStartx, kScrVStarty, kCapPicWidth, kScrVHeight)];
    _scrV.contentSize = CGSizeMake(kCapPicWidth * kImageViewCount, kCapPicHeight);
    _scrV.contentOffset = CGPointMake(kCapPicWidth, 0.0);
    _scrV.pagingEnabled = YES;
    _scrV.showsHorizontalScrollIndicator = NO;
    _scrV.delegate = self;
    [self.view addSubview:_scrV];
}

- (void)addImageViewsToScrollView {
    //图片视图；左边
    _shopNameLeft =  [[UIButton alloc] initWithFrame:CGRectMake(, , kCapPicWidth, kShopNameLabelHeight)];
    [_shopNameLeft setContentHorizontalAlignment:UIControlContentHorizontalAlignmentCenter];
    [_shopNameLeft setContentVerticalAlignment:UIControlContentVerticalAlignmentCenter];
    _shopNameLeft.backgroundColor = [UIColor whiteColor];
    [_shopNameLeft setTitleColor:[UIColor redColor]forState:UIControlStateNormal];
    _shopNameLeft.titleLabel.font = [UIFont systemFontOfSize: 15.0];
    [_scrV addSubview:_shopNameLeft];

    _goodsURLLeft =  [[UIButton alloc] initWithFrame:CGRectMake(kCapPicWidth-kGoodsUrlBtnWidth-, (kShopNameLabelHeight-kGoodsUrlBtnHeight)/, kGoodsUrlBtnWidth, kGoodsUrlBtnHeight)];
    [_goodsURLLeft setContentHorizontalAlignment:UIControlContentHorizontalAlignmentCenter];
    [_goodsURLLeft setContentVerticalAlignment:UIControlContentVerticalAlignmentCenter];
    _goodsURLLeft.backgroundColor = [UIColor redColor];
    [_goodsURLLeft setTitleColor:[UIColor whiteColor]forState:UIControlStateNormal];
    [_goodsURLLeft setTitle:@"去购买" forState: UIControlStateNormal];
    _goodsURLLeft.titleLabel.font = [UIFont systemFontOfSize: 15.0];
    _goodsURLLeft.layer.cornerRadius = ;
    [_goodsURLLeft addTarget:self action:@selector(toBuyBtnClick:) forControlEvents:UIControlEventTouchUpInside];
    [_scrV addSubview:_goodsURLLeft];

    _imgVLeft = [[UIImageView alloc] initWithFrame:CGRectMake(0.0, kScrVImgStarty, kCapPicWidth, kCapPicHeight)];
    _imgVLeft.contentMode = UIViewContentModeScaleAspectFit;

    _leftpicView = [[UIControl alloc] initWithFrame:CGRectMake(0.0, kScrVImgStarty, kCapPicWidth, kCapPicHeight)] ;
    _leftpicView.backgroundColor = [UIColor clearColor];
    [(UIControl *)_leftpicView addTarget:self action:@selector(toBuyBtnClick:) forControlEvents:UIControlEventTouchUpInside];
    [_scrV addSubview:_imgVLeft];

    [_scrV addSubview:_leftpicView];

    //图片视图；中间
    _shopNameCenter =  [[UIButton alloc] initWithFrame:CGRectMake(kCapPicWidth, , kCapPicWidth, kShopNameLabelHeight)];
    [_shopNameCenter setContentHorizontalAlignment:UIControlContentHorizontalAlignmentCenter];
    [_shopNameCenter setContentVerticalAlignment:UIControlContentVerticalAlignmentCenter];
    _shopNameCenter.backgroundColor = [UIColor whiteColor];
    [_shopNameCenter setTitleColor:[UIColor redColor]forState:UIControlStateNormal];
    _shopNameCenter.titleLabel.font = [UIFont systemFontOfSize: 15.0];
    [_scrV addSubview:_shopNameCenter];

    _goodsURLCenter =  [[UIButton alloc] initWithFrame:CGRectMake(*kCapPicWidth-kGoodsUrlBtnWidth-, (kShopNameLabelHeight-kGoodsUrlBtnHeight)/, kGoodsUrlBtnWidth, kGoodsUrlBtnHeight)];
    [_goodsURLCenter setContentHorizontalAlignment:UIControlContentHorizontalAlignmentCenter];
    [_goodsURLCenter setContentVerticalAlignment:UIControlContentVerticalAlignmentCenter];
    _goodsURLCenter.backgroundColor = [UIColor redColor];
    [_goodsURLCenter setTitleColor:[UIColor whiteColor]forState:UIControlStateNormal];
    [_goodsURLCenter setTitle:@"去购买" forState: UIControlStateNormal];
    _goodsURLCenter.titleLabel.font = [UIFont systemFontOfSize: 15.0];
    _goodsURLCenter.layer.cornerRadius = ;
    [_goodsURLCenter addTarget:self action:@selector(toBuyBtnClick:) forControlEvents:UIControlEventTouchUpInside];
    [_scrV addSubview:_goodsURLCenter];

    _imgVCenter = [[UIImageView alloc] initWithFrame:CGRectMake(kCapPicWidth, kScrVImgStarty, kCapPicWidth, kCapPicHeight)];
    _imgVCenter.contentMode = UIViewContentModeScaleAspectFit;

    _centerpicView = [[UIControl alloc] initWithFrame:CGRectMake(kCapPicWidth, kScrVImgStarty, kCapPicWidth, kCapPicHeight)] ;
    _centerpicView.backgroundColor = [UIColor clearColor];
    [(UIControl *)_centerpicView addTarget:self action:@selector(toBuyBtnClick:) forControlEvents:UIControlEventTouchUpInside];
    [_scrV addSubview:_imgVCenter];

    [_scrV addSubview:_centerpicView];

    //图片视图；右边
    _shopNameRight =  [[UIButton alloc] initWithFrame:CGRectMake(kCapPicWidth * 2.0, , kCapPicWidth, kGoodsUrlBtnHeight)];
    [_shopNameRight setContentHorizontalAlignment:UIControlContentHorizontalAlignmentCenter];
    [_shopNameRight setContentVerticalAlignment:UIControlContentVerticalAlignmentCenter];
    _shopNameRight.backgroundColor = [UIColor whiteColor];
    [_shopNameRight setTitleColor:[UIColor redColor]forState:UIControlStateNormal];
    _shopNameRight.titleLabel.font = [UIFont systemFontOfSize: 15.0];
    [_scrV addSubview:_shopNameRight];

    _goodsURLRight =  [[UIButton alloc] initWithFrame:CGRectMake(*kCapPicWidth-kGoodsUrlBtnWidth-, (kShopNameLabelHeight-kGoodsUrlBtnHeight)/, kGoodsUrlBtnWidth, kGoodsUrlBtnHeight)];
    [_goodsURLRight setContentHorizontalAlignment:UIControlContentHorizontalAlignmentCenter];
    [_goodsURLRight setContentVerticalAlignment:UIControlContentVerticalAlignmentCenter];
    _goodsURLRight.backgroundColor = [UIColor redColor];
    [_goodsURLRight setTitleColor:[UIColor whiteColor]forState:UIControlStateNormal];
    [_goodsURLRight setTitle:@"去购买" forState: UIControlStateNormal];
    _goodsURLRight.titleLabel.font = [UIFont systemFontOfSize: 15.0];
    _goodsURLRight.layer.cornerRadius = ;
    [_goodsURLRight addTarget:self action:@selector(toBuyBtnClick:) forControlEvents:UIControlEventTouchUpInside];
    [_scrV addSubview:_goodsURLRight];

    _imgVRight = [[UIImageView alloc] initWithFrame:CGRectMake(kCapPicWidth * 2.0, kScrVImgStarty, kCapPicWidth, kCapPicHeight)];
    _imgVRight.contentMode = UIViewContentModeScaleAspectFit;

    _rightpicView = [[UIControl alloc] initWithFrame:CGRectMake(kCapPicWidth * 2.0, kScrVImgStarty, kCapPicWidth, kCapPicHeight)] ;
    _rightpicView.backgroundColor = [UIColor clearColor];
    [(UIControl *)_rightpicView addTarget:self action:@selector(toBuyBtnClick:) forControlEvents:UIControlEventTouchUpInside];
    [_scrV addSubview:_imgVRight];

    [_scrV addSubview:_rightpicView];

}
- (void)toBuyBtnClick:(id)sender
{
    NSLog(@"toBuyBtnClick:%d",_currentImageIndex);
    NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults];
    [defaults setObject:[self getGoodsUrlByIndex:_currentImageIndex] forKey:@"urldata"];
    NSString *goodsidstr=[NSString stringWithFormat:@"-1"];
    [defaults setObject:goodsidstr forKey:@"goodsiddata"];
    NSString *itemidstr=[NSString stringWithFormat:@"-1"];
    [defaults setObject:itemidstr forKey:@"itemiddata"];
    NSString *shopname=[self getPicShopNameByIndex:_currentImageIndex];
    [defaults setObject:shopname forKey:@"shopnamedata"];
    [defaults synchronize];
    [[DBStrore sharedDBStore] showInformationView:];

}
- (void)addPageControl {
    _pageC = [UIPageControl new];
    CGSize size= [_pageC sizeForNumberOfPages:_imageCount]; //根据页数返回 UIPageControl 合适的大小
    _pageC.bounds = CGRectMake(0.0, 0.0, size.width, size.height);
    _pageC.center = CGPointMake(kCapPicWidth / 2.0, kScreenHeight-);
    _pageC.numberOfPages = _imageCount;
    _pageC.pageIndicatorTintColor = [UIColor lightGrayColor];
    _pageC.currentPageIndicatorTintColor = self.view.tintColor;
    _pageC.userInteractionEnabled = NO; //设置是否允许用户交互；默认值为 YES，当为 YES 时，针对点击控件区域左（当前页索引减一，最小为0）右（当前页索引加一，最大为总数减一），可以编写 UIControlEventValueChanged 的事件处理方法
    UIView *pageview = [[UIView alloc] initWithFrame:CGRectMake(, kScreenHeight-, kCapPicWidth, )];
    pageview.alpha=0.90f;
    pageview.backgroundColor=[UIColor whiteColor];
    [self.view addSubview:pageview];

    [self.view addSubview:_pageC];
}
- (NSString*)getPicShopNameByIndex:(NSUInteger)currentImageIndex {
    NSString *key=_capPicArray[currentImageIndex];
    NSLog(@"cur key:%@",key);
    NSArray *tmparr=[_capPicArray[currentImageIndex] componentsSeparatedByString:@","];
    NSString *shopname=tmparr[];
    NSLog(@"cur shopname:%@",shopname);
    return shopname;
}
- (NSString*)getPicPathByIndex:(NSUInteger)currentImageIndex {
    NSString *key=_capPicArray[currentImageIndex];
    //NSLog(@"cur key:%@",key);
    NSArray *tmparr=[_capPicArray[currentImageIndex] componentsSeparatedByString:@","];
    NSString *picPath=tmparr[];
    //NSLog(@"cur picPath:%@",picPath);
    return picPath;
}
- (NSString*)getGoodsUrlByIndex:(NSUInteger)currentImageIndex {
    NSString *key=_capPicArray[currentImageIndex];
    //NSLog(@"cur key:%@",key);
    NSArray *tmparr=[_capPicArray[currentImageIndex] componentsSeparatedByString:@","];
    NSString *goodsurl=tmparr[];
   // NSLog(@"cur goodsurl:%@",goodsurl);
    return goodsurl;
}

- (void)setInfoByCurrentImageIndex:(NSUInteger)currentImageIndex {
    if(_imageCount>){
        _imgVCenter.image = [UIImage imageNamed:[self getPicPathByIndex:currentImageIndex]];
        [_shopNameCenter setTitle:[NSString stringWithFormat:@"%@商品截图",[self getPicShopNameByIndex:currentImageIndex]] forState: UIControlStateNormal];

        _imgVLeft.image = [UIImage imageNamed:[self getPicPathByIndex:((_currentImageIndex -  + _imageCount) % _imageCount)]];
        [_shopNameLeft setTitle:[NSString stringWithFormat:@"%@商品截图",[self getPicShopNameByIndex:((_currentImageIndex -  + _imageCount) % _imageCount)]] forState: UIControlStateNormal];

        _imgVRight.image = [UIImage imageNamed:[self getPicPathByIndex:((_currentImageIndex + ) % _imageCount)]];
        [_shopNameRight setTitle:[NSString stringWithFormat:@"%@商品截图",[self getPicShopNameByIndex:((_currentImageIndex + ) % _imageCount)]] forState: UIControlStateNormal];

        _pageC.currentPage = currentImageIndex;
    }
}

- (void)setDefaultInfo {
    // _currentImageIndex = 0;
    if(_currentImageIndex >= _imageCount){
        _currentImageIndex = _imageCount-;
    }
    [self setInfoByCurrentImageIndex:_currentImageIndex];
}

- (void)reloadImage {
    CGPoint contentOffset = [_scrV contentOffset];
    if (contentOffset.x > kCapPicWidth) { //向左滑动
        _currentImageIndex = (_currentImageIndex + ) % _imageCount;
    } else if (contentOffset.x < kCapPicWidth) { //向右滑动
        _currentImageIndex = (_currentImageIndex -  + _imageCount) % _imageCount;
    }

    [self setInfoByCurrentImageIndex:_currentImageIndex];
}
- (void)viewWillAppear:(BOOL)animated
{
    [super viewWillAppear:YES];
    //self.navigationController.navigationBarHidden = YES;
}
-(void)viewDidDisappear:(BOOL)animated
{
    [super viewDidDisappear:YES];
    //self.navigationController.navigationBarHidden = NO;
}
#pragma mark - UIScrollViewDelegate
- (void)scrollViewDidEndDecelerating:(UIScrollView *)scrollView {
    [self reloadImage];

    _scrV.contentOffset = CGPointMake(kCapPicWidth, 0.0);
    _pageC.currentPage = _currentImageIndex;

}

@end

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