//
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// BSKImagesPageView.m
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// Shopping
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//
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// Created by aaaa on 2016/11/16.
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// Copyright © 2016年 YouMeiYiKeJi. All rights reserved.
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//
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#import "BSKImagesPageView.h"
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#import "AFNetworking.h"
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//#import "BSKUtils.h"
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#import "UIImageView+WebCache.h"
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#ifndef BSKPlaceHolderImage
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#define BSKPlaceHolderImage [UIImage imageNamed:@"默认加载图片"]
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#endif
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@interface BSKImagesPageView ()<UIScrollViewDelegate>
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@property (nonatomic, strong) NSTimer * timer;
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@property (nonatomic, strong) UIScrollView * imageScroView;
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@property (nonatomic, strong) YYAnimatedImageView * firstImageView;
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@property (nonatomic, strong) YYAnimatedImageView * middleImageView;
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@property (nonatomic, strong) YYAnimatedImageView * lastImageView;
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@property (nonatomic, assign) NSInteger currentPage;
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@property (nonatomic, assign) BOOL isScroll;
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@property (nonatomic, assign) BOOL initFlag;
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@end
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@implementation BSKImagesPageView
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-(instancetype)initWithImages:(NSArray *)images{
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CGFloat w= 200;//默认宽高
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CGFloat h = 120;
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self = [self initWithFrame:CGRectMake(0, 0,w,h) imageNames:images];
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return self;
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}
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- (instancetype)initWithFrame:(CGRect)frame imageNames:(NSArray *)images
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{
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self = [self initWithFrame:frame];
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if (self) {
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self.images = images;
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}
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return self;
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}
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-(void)awakeFromNib{
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[super awakeFromNib];
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[self initialize];
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}
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- (instancetype)initWithFrame:(CGRect)frame
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{
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self = [super initWithFrame:frame];
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if (self) {
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[self initialize];
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}
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return self;
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}
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-(void)initialize{
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_initFlag = NO;
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self.imageSize = CGSizeZero;
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self.canClickWhenScroll = YES;
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self.isScroll = NO;
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[self initializeUIserInterface];
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}
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-(void)layoutSubviews{
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self.imageScroView.frame = self.bounds;
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self.imageScroView.contentSize =CGSizeMake(self.bounds.size.width*3, self.bounds.size.height);
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//self.pageControl.frame = CGRectMake(0, self.bounds.size.height-20, self.bounds.size.width, 20);
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self.pageControl.frame = CGRectMake(0, self.bounds.size.height-30, self.bounds.size.width, 20);
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self.firstImageView.frame = CGRectMake(0, 0, self.bounds.size.width, self.bounds.size.height);
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self.middleImageView.frame = CGRectMake(self.bounds.size.width, 0, self.bounds.size.width, self.bounds.size.height);
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self.lastImageView.frame = CGRectMake(self.bounds.size.width*2, 0, self.bounds.size.width, self.bounds.size.height);
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[self.imageScroView setContentOffset:CGPointMake(self.bounds.size.width, 0) animated:NO];
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[self openTimer:YES];
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}
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-(void)initializeUIserInterface{//初始化视图
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self.imageScroView = [[UIScrollView alloc]init];
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self.firstImageView = [[YYAnimatedImageView alloc]init];
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self.middleImageView = [[YYAnimatedImageView alloc]init];
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self.lastImageView = [[YYAnimatedImageView alloc]init];
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self.pageControl = [[UIPageControl alloc]init];
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[self.firstImageView setContentScaleFactor:[[UIScreen mainScreen] scale]];
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[self.middleImageView setContentScaleFactor:[[UIScreen mainScreen] scale]];
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[self.lastImageView setContentScaleFactor:[[UIScreen mainScreen] scale]];
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self.firstImageView.contentMode = UIViewContentModeScaleToFill;
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self.middleImageView.contentMode = UIViewContentModeScaleToFill;
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self.lastImageView.contentMode = UIViewContentModeScaleToFill;
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self.firstImageView.clipsToBounds = YES;
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self.middleImageView.clipsToBounds = YES;
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self.lastImageView.clipsToBounds = YES;
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[self addSubview:self.imageScroView];
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self.imageScroView.delegate = self;
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self.imageScroView.pagingEnabled = YES;
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self.imageScroView.showsVerticalScrollIndicator = NO;
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self.imageScroView.showsHorizontalScrollIndicator = NO;
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self.pageControl.currentPage = 0;
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self.currentPage = 0;
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self.pageControl.numberOfPages = self.images.count;
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self.pageControl.pageIndicatorTintColor = [UIColor lightGrayColor];
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// self.pageControl.currentPageIndicatorTintColor = UIColorHex(@"f4bb3dff");
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// self.pageControl.currentPageIndicatorTintColor = UIColorFromRGB(0xFE7C21, 1.0);
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self.pageControl.currentPageIndicatorTintColor = kGlobalYellowColor;
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self.pageControl.userInteractionEnabled =NO;
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[self addSubview:self.pageControl];
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[self.imageScroView addSubview:self.firstImageView];
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[self.imageScroView addSubview:self.middleImageView];
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[self.imageScroView addSubview:self.lastImageView];
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[self refreshImage];
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UITapGestureRecognizer * tapGesture = [[UITapGestureRecognizer alloc]initWithTarget:self action:@selector(tapAction:)];
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[self addGestureRecognizer:tapGesture];
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}
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//点击手势
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-(void)tapAction:(UITapGestureRecognizer *)geture{
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if (self.images.count==0) {
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return;
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}
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if (self.isScroll) {
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//NSLog(@"[BSKImagesPageView]: canClickWhenScroll = %@",self.canClickWhenScroll?@"YES":@"NO");
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if(!self.canClickWhenScroll){
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return;
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}
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}
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if (self.delegate) {
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if([self.delegate respondsToSelector:@selector(BSKImagesPageView:onClickImageView:atIndex:)]){
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[self.delegate BSKImagesPageView:self onClickImageView:self.middleImageView atIndex:self.pageControl.currentPage];
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}
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}
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}
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//打开或关闭计时器
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-(void)openTimer:(BOOL)open{
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if (self.images.count<=1) {
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[self.timer invalidate];
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return;
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}
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if (self.timerTimeInterval<=0) {
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[self.timer invalidate];
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return;
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}
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if (open) {
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[self.timer invalidate];
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self.timer = [NSTimer scheduledTimerWithTimeInterval:self.timerTimeInterval target:self selector:@selector(nextPage) userInfo:nil repeats:YES];
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}else{
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[self.timer invalidate];
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}
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}
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//根据当前的页码更新图片
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-(void)refreshImage{
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if (self.images.count==0) {
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return;
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}
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NSInteger firstIndex = self.currentPage - 1;
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if (firstIndex<0) {
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firstIndex = self.images.count - 1;
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}
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NSInteger lastIndex = self.currentPage + 1;
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if (lastIndex>=self.images.count) {
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lastIndex=0;
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}
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//NSLog(@"%ld %ld %ld",firstIndex,self.currentPage,lastIndex);
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[self setImage:self.images[firstIndex] toImageView:self.firstImageView];
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[self setImage:self.images[self.currentPage] toImageView:self.middleImageView];
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[self setImage:self.images[lastIndex] toImageView:self.lastImageView];
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}
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-(void)setImage:(id) image toImageView:(YYAnimatedImageView*)imageview{
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NSString *imageString = (NSString *)image;
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if (imageString.length == 0) {
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[imageview setImage:BSKPlaceHolderImage];
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return;
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}
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[imageview setYthImageWithURL:imageString placeholderImage:BSKPlaceHolderImage];
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// if ([image isKindOfClass:[NSString class]]) {
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// NSString * imageStr = image;
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// if ([imageStr hasPrefix:@"http://"]) {
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// //if (!CGSizeEqualToSize(self.imageSize, CGSizeZero)) {
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// //[imageview setImageWithURL:[imageStr CIImageHttpsUrlWithSize:self.imageSize] placeholder:BSKPlaceHolderImage];
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// [imageview sd_setImageWithURL:[NSURL URLWithString:imageStr] placeholderImage:BSKPlaceHolderImage];
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//// }else{
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//// [imageview setImageWithURL:[imageStr HttpsUrlFromeHttpString] placeholder:BSKPlaceHolderImage];
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//// }
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// }else{
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// if ([imageStr hasSuffix:@".gif"]||[imageStr hasSuffix:@".GIF"]) {
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// NSString * gifType = [imageStr substringFromIndex:[imageStr rangeOfString:@"." options:NSBackwardsSearch].location];
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// NSString * gifName = [imageStr substringToIndex:imageStr.length-4];
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// NSString * str = [[NSBundle mainBundle] pathForResource:gifName ofType:gifType];
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// if (str) {
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//// NSURL * url = [NSURL fileURLWithPath:str];
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// [imageview setYthImageWithURL:str placeholderImage:BSKPlaceHolderImage];
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// }
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// }else{
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// if ([image isKindOfClass:[NSNull class]]) {
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// [imageview setImage:BSKPlaceHolderImage];
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// }else{
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// [imageview setImage:[UIImage imageNamed:imageStr]];
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// }
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// }
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// }
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// }else if([image isKindOfClass:[NSURL class]]){
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// [imageview setYthImageWithURL:image placeholderImage:BSKPlaceHolderImage];
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// }else if([image isKindOfClass:[UIImage class]]){
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// [imageview setImage:image];
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// }else{
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// [imageview setImage:BSKPlaceHolderImage];
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// }
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}
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//滚动到下一页，轮播。
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-(void)nextPage{
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if (self.images.count>1) {
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self.isScroll = YES;
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[self.imageScroView setContentOffset:CGPointMake(self.frame.size.width*2, 0) animated:YES];
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}
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if (!self.superview) {
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[self openTimer:NO];
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}
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}
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-(void)lastPage{
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if (self.images.count>1) {
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self.isScroll = YES;
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[self.imageScroView setContentOffset:CGPointMake(0, 0) animated:YES];
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}
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}
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-(void)scrollToIndex:(NSInteger)index{
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if (index>=self.images.count||index<0||self.images.count==0) {
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return;
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}
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[self setImage:self.images[index] toImageView:self.lastImageView];
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[self nextPage];
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self.currentPage = index-1>=0?index-1:self.images.count-1;
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}
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#pragma marck UIScrollViewDelegate
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//当滚动动画完成时更新页码重置图片（只有轮播时才会触发）
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-(void)scrollViewDidEndScrollingAnimation:(UIScrollView *)scrollView{
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[self scrollViewDidEndDecelerating:scrollView];
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}
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//当滚动到两边边缘时进行页码处理并重置图片
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-(void)scrollViewDidScroll:(UIScrollView *)scrollView{
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if (self.images.count==0) {
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return;
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}
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if (scrollView.contentOffset.x<0) {
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scrollView.contentOffset = CGPointMake(self.frame.size.width, 0);
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self.currentPage--;
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}else
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if (scrollView.contentOffset.x>self.frame.size.width*2) {
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scrollView.contentOffset = CGPointMake(self.frame.size.width, 0);
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self.currentPage++;
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}else{
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return;
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}
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NSInteger arrayCount =self.images.count+0;
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if (self.currentPage>=arrayCount) {
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self.currentPage = 0;
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}
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if (self.currentPage<0) {
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self.currentPage = self.images.count-1;
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}
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[self refreshImage];
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[self.imageScroView setContentOffset:CGPointMake(self.frame.size.width, 0) animated:NO];
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self.pageControl.currentPage=self.currentPage;
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self.isScroll = YES;
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}
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//当减速动画完成时更新页码并重置图片。（拖拽时才会触发）
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-(void)scrollViewDidEndDecelerating:(UIScrollView *)scrollView{
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if (self.images.count==0) {
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return;
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}
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if (scrollView.contentOffset.x==0) {
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self.currentPage--;
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}
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else if(scrollView.contentOffset.x==self.frame.size.width*2){
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self.currentPage++;
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}
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else{
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return;
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}
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NSInteger arrayCount =self.images.count+0;
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if (self.currentPage>=arrayCount) {
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self.currentPage = 0;
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}
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if (self.currentPage<0) {
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self.currentPage = self.images.count-1;
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}
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[self refreshImage];
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[self.imageScroView setContentOffset:CGPointMake(self.frame.size.width, 0) animated:NO];
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self.pageControl.currentPage=self.currentPage;
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self.isScroll = NO;
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}
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//开始拖拽时关闭计时器
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-(void)scrollViewWillBeginDragging:(UIScrollView *)scrollView{
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self.isScroll = YES;
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[self openTimer:NO];
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}
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//结束拖拽时打开计时器继续轮播
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-(void)scrollViewDidEndDragging:(UIScrollView *)scrollView willDecelerate:(BOOL)decelerate{
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[self openTimer:YES];
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}
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#pragma marck setter
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-(void)setTimerTimeInterval:(NSInteger)timerTimeInterval{
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_timerTimeInterval = timerTimeInterval;
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[self openTimer:YES];
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}
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-(void)setImages:(NSArray *)images
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{
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_images = images;
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self.pageControl.numberOfPages = _images.count;
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self.pageControl.currentPage = 0;
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self.currentPage = 0;
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if (!(images.count > 1)) {
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[self openTimer:NO];
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self.pageControl.hidden = YES;
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}else{
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[self openTimer:YES];
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self.pageControl.hidden = NO;
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}
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[self refreshImage];
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self.imageScroView.scrollEnabled = _images.count>1;
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}
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-(void)setShowPageControl:(BOOL)showPageControl{
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_showPageControl = showPageControl;
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self.pageControl.hidden = !showPageControl;
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}
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-(YYAnimatedImageView * )curentImageView{
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return self.middleImageView;
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}
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-(void)dealloc{
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//NSLog(@"BSKImagesPageView-Delloc");
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[self.timer invalidate];
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}
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@end
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