CAISHEN/loan/Main/MainPage/View/KXMainHorizo...

//
//  KXMainHorizontalCycleView.m
//  QBCS
//
//  Created by kuxuan on 2017/6/6.
//  Copyright © 2017年 kuxuan. All rights reserved.
//

#import "KXMainHorizontalCycleView.h"
#import "KXCycleModel.h"
#import "KXCustomPageControl.h"
@interface KXMainHorizontalCycleView()<UIScrollViewDelegate>
@property (nonatomic,strong)UIScrollView *topScrollView;
@property (nonatomic,weak)NSTimer *scrollTimer;
@property (nonatomic,strong)KXCustomPageControl *pageControl;

@end

@implementation KXMainHorizontalCycleView

- (id)initWithFrame:(CGRect)frame
{
    self = [super initWithFrame:frame];
    if (self) {
        // Initialization code
        [self createView];
    }
    return self;
}
-(void)createView
{
    if (self.topScrollView) {
        [self.topScrollView removeFromSuperview];
    }
    //创建轮播
    UIScrollView *sc=[[UIScrollView alloc]initWithFrame:CGRectMake(0,0, self.frame.size.width,120*SCREEN_MUTI)];
    self.topScrollView=sc;
    self.topScrollView.bounces = NO;
    self.topScrollView.pagingEnabled = YES;
    self.topScrollView.showsHorizontalScrollIndicator = NO;
    self.topScrollView.showsVerticalScrollIndicator = NO;
    self.topScrollView.delegate = self;
    self.topScrollView.scrollEnabled=YES;
    self.topScrollView.tag=6666;
    [self addSubview:self.topScrollView];
    
}

-(void)setupTimer
{
    NSTimer *timer = [NSTimer scheduledTimerWithTimeInterval:3 target:self selector:@selector(automaticScroll) userInfo:nil repeats:YES];
    self.scrollTimer = timer;
    [[NSRunLoop mainRunLoop] addTimer:self.scrollTimer forMode:NSRunLoopCommonModes];
}

-(void)automaticScroll
{
    NSInteger index=self.topScrollView.contentOffset.x/SCREEN_WIDTH;
    index=index+1;
    [UIView animateWithDuration:1 animations:^{
        self.topScrollView.contentOffset=CGPointMake(SCREEN_WIDTH*index, 0);
    }];
    self.pageControl.indexNumWithSlide=index;
    if (index==self.scrollArray.count+1) {
        [self.topScrollView setContentOffset:CGPointMake(CGRectGetWidth(self.topScrollView.frame), 0) animated:NO];
        self.pageControl.indexNumWithSlide=0;
    }else if(index==0)
    {
        [self.topScrollView setContentOffset:CGPointMake(CGRectGetWidth(self.topScrollView.frame)*self.scrollArray.count, 0) animated:NO];
        self.pageControl.indexNumWithSlide=self.scrollArray.count;
        
    }else{
        self.pageControl.indexNumWithSlide=index-1;
    }
}

#pragma mark - UIScrollViewDelegate

- (void)scrollViewDidEndDecelerating:(UIScrollView *)scrollView
{
    if (scrollView.tag==6666) {
        int pageNum=self.topScrollView.contentOffset.x/SCREEN_WIDTH;
        self.pageControl.indexNumWithSlide=pageNum;
        if (pageNum==self.scrollArray.count+1) {
            [self.topScrollView setContentOffset:CGPointMake(CGRectGetWidth(scrollView.frame), 0) animated:NO];
            self.pageControl.indexNumWithSlide=0;
            
        }else if(pageNum==0)
        {
            [self.topScrollView setContentOffset:CGPointMake(CGRectGetWidth(scrollView.frame)*self.scrollArray.count, 0) animated:NO];
            self.pageControl.indexNumWithSlide=self.scrollArray.count;
          
        }
        else
        {
            self.pageControl.indexNumWithSlide=pageNum-1;
 
        }
    }
    
}

- (void)scrollViewWillBeginDragging:(UIScrollView *)scrollView
{
    
    [self.scrollTimer invalidate];
    self.scrollTimer = nil;
    
}

- (void)scrollViewDidEndDragging:(UIScrollView *)scrollView willDecelerate:(BOOL)decelerate
{
    
    [self setupTimer];
    
}

- (void)scrollViewDidEndScrollingAnimation:(UIScrollView *)scrollView
{
    if (scrollView.tag==6666) {
        int pageNum=scrollView.contentOffset.x/CGRectGetWidth(scrollView.frame);
        self.pageControl.indexNumWithSlide=pageNum;
        
        
        if (pageNum==self.scrollArray.count+1) {
            [self.topScrollView  setContentOffset:CGPointMake(CGRectGetWidth(scrollView.frame), 0) animated:NO];
            self.pageControl.indexNumWithSlide=0;
        }
        else if(pageNum==0)
        {
            [self.topScrollView setContentOffset:CGPointMake(CGRectGetWidth(scrollView.frame)*self.scrollArray.count, 0) animated:NO];
            self.pageControl.indexNumWithSlide=self.scrollArray.count;
        }
        else
        {
            self.pageControl.indexNumWithSlide=pageNum-1;
        }
    }
    
}


-(void)setScrollArray:(NSArray *)scrollArray
{
    _scrollArray=scrollArray;
    
    if (_pageControl) {
        [_pageControl removeFromSuperview];
    }
    _pageControl = [KXCustomPageControl cusPageControlWithView:CGRectMake(SCREEN_WIDTH-100,self.frame.size.height-20, 100, 20) pageNum:scrollArray.count currentPageIndex:0 currentShowImage:[UIImage imageNamed:@"home_pageControl_select"] pageIndicatorShowImage:[UIImage imageNamed:@"home_pageControl_normal"]];
    [self addSubview:_pageControl];
    for (int i=0; i<self.scrollArray.count+2; i++) {
        UIImageView *imageView=[[UIImageView alloc]init];
        imageView.frame=CGRectMake(i*self.frame.size.width, 0, self.frame.size.width, 120*SCREEN_MUTI);
        imageView.userInteractionEnabled=YES;
        if (i==0) {
            KXCycleModel *model=scrollArray[scrollArray.count-1];
            [imageView sd_setImageWithURL:[NSURL URLWithString:model.photo] placeholderImage:[UIImage imageNamed:@"placeholder_rectangle"] options:SDWebImageRefreshCached];
        }else if (i==self.scrollArray.count+1){
            KXCycleModel *model=scrollArray[0];
            [imageView sd_setImageWithURL:[NSURL URLWithString:model.photo] placeholderImage:[UIImage imageNamed:@"placeholder_rectangle"] options:SDWebImageRefreshCached];
        }else{
            KXCycleModel *model=scrollArray[i-1];
            [imageView sd_setImageWithURL:[NSURL URLWithString:model.photo] placeholderImage:[UIImage imageNamed:@"placeholder_rectangle"] options:SDWebImageRefreshCached];
            imageView.tag=2345+i;
        }
        
        UITapGestureRecognizer *tap=[[UITapGestureRecognizer alloc]initWithTarget:self action:@selector(tapAction:)];
        [imageView addGestureRecognizer:tap];
        [self.topScrollView addSubview:imageView];
    }
    self.topScrollView.contentSize=CGSizeMake((self.scrollArray.count+2)*SCREEN_WIDTH, 0);
    
    self.topScrollView.contentOffset=CGPointMake(SCREEN_WIDTH, 0);
    
//    self.pageControl.pageIndicatorTintColor=[UIColor colorWithWhite:1 alpha:0.4];
//    self.pageControl.currentPageIndicatorTintColor=[UIColor whiteColor];
    [self setupTimer];
}

//- (UIPageControl *)pageControl{
//    if (!_pageControl) {
//        _pageControl = [[UIPageControl alloc]initWithFrame:CGRectMake(SCREEN_WIDTH-100,self.frame.size.height-20, 100, 20)];
////        [_pageControl setValue:[UIImage imageNamed:@"home_pageControl_normal"] forKey:@"_pageImage"];
////        [_pageControl setValue:[UIImage imageNamed:@"home_pageControl_select"] forKey:@"_currentPageImage"];
//            _pageControl.pageIndicatorTintColor=[UIColor colorWithWhite:1 alpha:0.4];
//            _pageControl.currentPageIndicatorTintColor=[UIColor whiteColor];
//    }
//    return _pageControl;
//}

-(void)dealloc
{
    self.topScrollView.delegate=nil;
}


-(void)tapAction:(UITapGestureRecognizer *)tap
{
    [_delegate clickScrollViewItemWithIndex:tap.view.tag-2346];
}

@end