ifish/Ifish/views/Photo/LYPhotoShowView.m

//
//  LYPhotoShowView.m
//  Droplets
//
//  Created by 米明 on 15/12/29.
//  Copyright © 2015年 米明. All rights reserved.
//

#import "LYPhotoShowView.h"
#import "LYPhoto.h"
#import "LYHelper.h"
#import "UIImageView+WebCache.h"
#define kPlace     ([UIScreen mainScreen].bounds.size.width - 4 * kSizePhoto)/5
#define SCREENSIZE [UIScreen mainScreen].bounds.size
#define kSizePhoto self.frame.size.height

#define kFirstSpace SCREENSIZE.width
#define LABEL_TITLE_FONT [UIFont systemFontOfSize:12.f]

@interface LYPhotoShowView ()
{
    CGRect _frame;
}


@property(nonatomic,strong)NSMutableArray * imgViews;

@property(nonatomic,strong)NSMutableArray * imageNames;

@property(nonatomic,strong)NSArray *linewitdhArr;





@end

@implementation LYPhotoShowView

- (instancetype)init{
    self = [super init];
    if(self){
        [self setUp];
    }
    return self;
}


- (instancetype)initWithFrame:(CGRect)frame{
    self = [super initWithFrame:frame];
    if(self){
        [self setUp];
    }
    return self;
}

- (UIScrollView *)scrollView{
    if (!_scrollView) {
        _scrollView = [[UIScrollView alloc]initWithFrame:CGRectMake(kFirstSpace, 0, self.frame.size.width, self.frame.size.height*3/2 + 3)];
        _scrollView.alpha = 0;
        _scrollView.contentOffset = CGPointMake(0, 0);
        _scrollView.contentSize = CGSizeMake(self.frame.size.height*_images.count + kPlace +
                                            kSizePhoto +(_images.count-1)*kPlace, self.frame.size.height);
        
        //隐藏滚动视图的水平指示条
        _scrollView.showsHorizontalScrollIndicator=NO;
        _scrollView.backgroundColor = SECTHEADER_VIEWCOLOUR;
        
        //隐藏滚动视图的垂直指示条
        _scrollView.showsVerticalScrollIndicator=NO;
        
        
    
        [self addSubview:_scrollView];
    
    }
    return _scrollView;
}
- (void)setUp{
    
    _imgViews = [NSMutableArray array];
    _imageNames = [NSMutableArray array];
    
}
- (void)clear{
    
//    for (UIView * v in _imgViews) {
//        [v removeFromSuperview];
//    }
//    
//    for (UILabel *l in _imageNames) {
//        
//        [l removeFromSuperview];
//        
//    }
    
    [_scrollView.subviews makeObjectsPerformSelector:@selector(removeFromSuperview)];
    
    [_scrollView removeFromSuperview];
    _scrollView = nil;
    [_imgViews removeAllObjects];
    [_imageNames removeAllObjects];
    if (!_images||_images.count<=0) {
        self.frame=CGRectZero;
    }
    
}

- (void)setImages:(NSArray *)images nameLabels:(NSArray *)nameLabels {
     _images = images;
    _nameLabels = nameLabels;
    
    _linewitdhArr=[self getlabelWidthsWith:nameLabels];;
    
    [self creatImageViews];
    
    [self setLineView];
}

- (void)creatImageViews{
    
    [self clear];
    
    __weak typeof(self) wself = self;

    [_images enumerateObjectsUsingBlock:^(id  _Nonnull obj, NSUInteger idx, BOOL * _Nonnull stop) {
        //imgView
     
        
        CGRect frame = CGRectMake( kPlace  + idx*(kPlace + kSizePhoto) , 0, kSizePhoto, kSizePhoto );
        LYPhoto * photo = [[LYPhoto alloc]initWithFrame:frame];
        
        [wself.scrollView addSubview:photo];
        
        //nameLabel
        
                CGRect nameFrame=CGRectMake( idx *  (kPlace + kSizePhoto)  + (kPlace +kSizePhoto) - kSizePhoto  , kSizePhoto, kSizePhoto, kSizePhoto/2 );
                UILabel * nameLabel =[[UILabel alloc] initWithFrame:nameFrame];
                 nameLabel.textColor=SECTIONVIEW_LABELCOLER;
                 nameLabel.text=_nameLabels[idx];
        
                 nameLabel.textAlignment=NSTextAlignmentCenter;
                 nameLabel.font=[UIFont systemFontOfSize:12];
        
                [wself.scrollView addSubview:nameLabel];
        
        [wself.imageNames addObject:nameLabel];
        
        photo.tag = idx;
        photo.backgroundColor = SECTHEADER_VIEWCOLOUR;
        
        [wself.imgViews addObject:photo];
    
        
        [photo addTarget:self action:@selector(photoAction:)];
        
        if ([obj isKindOfClass:[NSString class]]) {//地址
            NSString * imgUrl = (NSString *)obj;
            if ([LYHelper isUrl:imgUrl]) {//是图片链接
    
                
            [photo sd_setImageWithURL:[NSURL URLWithString:imgUrl] placeholderImage:[UIImage imageNamed:@"icon1"]];
                
                
            
                //自行下载图片
            }else {//名字
                photo.image = [UIImage imageNamed:imgUrl];
            }
        }else if ([obj isKindOfClass:[UIImage class]]){//image对象
            UIImage * image = (UIImage *)obj;
            photo.image = image;
        }
    }];
 
}
-(void)setPhotoActionCallback:(LYPhotoActionBlock)photoActionCallback{
    _photoActionCallback = nil;
    _photoActionCallback = [photoActionCallback copy];
}
- (void)photoAction:(id)sender{
    
    
    
    if (self.photoActionCallback) {
        self.photoActionCallback(((LYPhoto*)sender).tag);
    }
    NSInteger index= ((LYPhoto*)sender).tag ;
    
  
    [self showLineWidthLabelWith:[_linewitdhArr[index] floatValue] andIndex:index];
    
    
    
}
- (void)show{
    //距离
    CGRect frame = self.scrollView.frame;
    frame.origin.x = 0;
    __weak typeof(self) wself = self;
    
    [UIView animateWithDuration:0.75 delay:0 options:UIViewAnimationOptionCurveEaseInOut animations:^{
        wself.scrollView.frame = frame;
        wself.scrollView.alpha = 1;
        
    } completion:^(BOOL finished) {
        
        
    }];
    
    
}
- (void)dismiss{
    CGRect frame = self.scrollView.frame;
    frame.origin.x = kFirstSpace;
    __weak typeof(self) wself = self;
    [UIView animateWithDuration:0 delay:0 options:UIViewAnimationOptionCurveEaseInOut animations:^{
        wself.scrollView.frame = frame;
        wself.scrollView.alpha = 0;
        
    } completion:^(BOOL finished) {
        [wself removeFromSuperview];
    }];
}

-(NSArray*)getlabelWidthsWith:(NSArray*)nameLabels{
    
    NSMutableArray *labelWidthsArr=[@[]  mutableCopy];
    for (NSString *name in nameLabels) {
        CGSize size = [name boundingRectWithSize:CGSizeMake(CGFLOAT_MAX, CGFLOAT_MAX) options:NSStringDrawingUsesLineFragmentOrigin attributes:@{NSFontAttributeName : LABEL_TITLE_FONT} context:nil].size;
        NSNumber *width = [NSNumber numberWithFloat:size.width + 20.f];
        [labelWidthsArr addObject:width];
    }
    
    return labelWidthsArr;
    
}

-(void)showLineWidthLabelWith:(CGFloat) width andIndex:(NSInteger) Index{
    
    
    CGRect frame = CGRectMake( Index *  (kPlace + kSizePhoto)   + (kPlace +kSizePhoto) - kSizePhoto ,kSizePhoto*3/2,kSizePhoto,3.0f);
    
    [UIView animateWithDuration:.2f animations:^{
        
        _line.frame=frame;
        
    }];
    
}

//初始line

-(void)setLineView{
    
    CGRect frame = CGRectMake( kPlace ,kSizePhoto*3/2,kSizePhoto,3.0f);
    
    _line = [[UIView alloc] initWithFrame:frame];
    
    _line.backgroundColor = [UIColor orangeColor];
    
    [_scrollView addSubview:_line];
    
    
}

@end