YBImageBrowser自定义工具条

一、自定义工具条
1、使用。

    YBImageBrowser *browser = [YBImageBrowser new];
    browser.toolViewHandlers = @[YXToolViewHandler.new];


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

- (void)imageBrowser_deletNoti:(NSNotification *)nofi {
    NSInteger curPage = [nofi.object[@"curPage"] integerValue];
    NSInteger totalPage = [nofi.object[@"totalPage"] integerValue];
    if (totalPage<=1) {
        [_browser hide];
        return;
    }
    if (curPage<0) {
        curPage = 0;
    }else if (curPage>totalPage) {
        curPage = totalPage;
    }
    YXPhotoData *data = nofi.object[@"data"];
    NSMutableArray *tmp = [NSMutableArray arrayWithArray:self.browser.dataSourceArray];
    [tmp removeObject:data];
    _browser.dataSourceArray = tmp;
    _browser.currentPage = curPage;
    [_browser reloadData];
}

2、实现，

#import "YBIBToolViewHandler.h"
@interface YXToolViewHandler : NSObject<YBIBToolViewHandler>
@end

#import "YXToolViewHandler.h"
#import "YXPhotoData.h"

@interface YXToolViewHandler()
@property (nonatomic, strong) UIButton *deletBtn;
@property (nonatomic, strong) UILabel *pageLabel;
@end
@implementation YXToolViewHandler

- (void)deletBtnAction:(UIButton *)btn {
    YXPhotoData *data = self.yb_currentData();
    NSInteger curPage = self.yb_currentPage();
    NSInteger totalPage = self.yb_totalPage();

    NSDictionary *dict = @{ @"data": data, @"curPage": @(curPage), @"totalPage": @(totalPage) };
    [[NSNotificationCenter defaultCenter] postNotificationName:@"YXImageBrowser_delet_noti" object:dict];
}
#pragma mark - <YBIBToolViewHandler>

@synthesize yb_containerView = _yb_containerView;
@synthesize yb_currentData = _yb_currentData;
@synthesize yb_containerSize = _yb_containerSize;
@synthesize yb_currentOrientation = _yb_currentOrientation;

@synthesize yb_currentPage = _yb_currentPage;
@synthesize yb_totalPage = _yb_totalPage;

- (void)yb_containerViewIsReadied {
    CGSize size = self.yb_containerSize(self.yb_currentOrientation());

    [self.yb_containerView addSubview:self.deletBtn];
    [self.yb_containerView addSubview:self.pageLabel];

    self.pageLabel.frame = CGRectMake(20, 20, 60, 40);
    self.deletBtn.frame = CGRectMake(size.width-100, 20, 60, 40);
}

- (void)yb_hide:(BOOL)hide {
    YXPhotoData *data = self.yb_currentData();
//    NSLog(@"%@",data.model.imgUrl);
}

- (void)yb_pageChanged {
    // 拿到当前的数据对象（此案例都是图片）
//    YXPhotoData *data = self.yb_currentData();
//    NSLog(@"%@",data.model.imgUrl);
    NSInteger curPage = self.yb_currentPage();
    NSInteger totalPage = self.yb_totalPage();
    self.pageLabel.text = [NSString stringWithFormat:@"%ld/%ld",(long)curPage+1, (long)totalPage];
}

- (void)yb_orientationChangeAnimationWithExpectOrientation:(UIDeviceOrientation)orientation {
    // 旋转的效果自行处理了
}

#pragma mark - lazy
- (UIButton *)deletBtn {
    if (!_deletBtn) {
        _deletBtn = [UIButton buttonWithType:UIButtonTypeCustom];
        _deletBtn.titleLabel.font = [UIFont boldSystemFontOfSize:15];
        [_deletBtn setTitleColor:UIColor.whiteColor forState:UIControlStateNormal];
        _deletBtn.backgroundColor = [UIColor.grayColor colorWithAlphaComponent:0.75];
        _deletBtn.layer.cornerRadius = 5.0;
        [_deletBtn setTitle:@"删除" forState:UIControlStateNormal];
        [_deletBtn addTarget:self action:@selector(deletBtnAction:) forControlEvents:UIControlEventTouchUpInside];
    }
    return _deletBtn;
}
- (UILabel *)pageLabel {
    if (!_pageLabel) {
        _pageLabel = [[UILabel alloc] init];
        _pageLabel.font = [UIFont boldSystemFontOfSize:15];
        _pageLabel.textColor = [UIColor whiteColor];
        _pageLabel.textAlignment = NSTextAlignmentCenter;
    }
    return _pageLabel;
}
@end

二、cell自定义。

#import "YBIBDataProtocol.h"
#import "YXBrowseModel.h"
@interface YXPhotoData : NSObject<YBIBDataProtocol>
@property (nonatomic, strong) YXBrowseModel *model;
@end

#import "YXPhotoCell.h"
@implementation YXPhotoData
- (Class)yb_classOfCell {
   return YXPhotoCell.self;
}
@end

#import "YBIBCellProtocol.h"
@interface YXPhotoCell : UICollectionViewCell<YBIBCellProtocol>
@end


#import "YXPhotoCell.h"
#import "YXPhotoData.h"
@interface YXPhotoCell()
@property (nonatomic, strong) UIImageView *imgView;
@end
@implementation YXPhotoCell
- (instancetype)initWithFrame:(CGRect)frame {
    self = [super initWithFrame:frame];
    if (self) {
        [self setup];
    }
    return self;
}
- (void)setup {
    self.contentView.backgroundColor = [UIColor blackColor];
    [self.contentView addSubview:self.imgView];
    [self.imgView mas_makeConstraints:^(MASConstraintMaker *make) {
        make.edges.mas_equalTo(0);
    }];

}
- (void)touchesEnded:(NSSet<UITouch *> *)touches withEvent:(UIEvent *)event {
    [super touchesEnded:touches withEvent:event];
    self.yb_hideBrowser();
}
- (void)prepareForReuse {

    [super prepareForReuse];
}
#pragma mark - <YBIBCellProtocol>
@synthesize yb_cellData = _yb_cellData;
@synthesize yb_hideBrowser = _yb_hideBrowser;
@synthesize yb_cellIsInCenter = _yb_cellIsInCenter;
@synthesize yb_currentPage = _yb_currentPage;
@synthesize yb_selfPage = _yb_selfPage;

- (void)setYb_cellData:(id<YBIBDataProtocol>)yb_cellData {
    _yb_cellData = yb_cellData;
    YXPhotoData *data = (YXPhotoData *)yb_cellData;
    YXBrowseModel *model = data.model;
    [self.imgView sd_setImageWithURL:[NSURL URLWithString:model.imgUrl]];
}

- (void)yb_pageChanged {
    if (self.yb_currentPage() != self.yb_selfPage()) {

    } else {

    }
}

#pragma mark - lazy
- (UIImageView *)imgView {
    if (!_imgView) {
        _imgView = [[UIImageView alloc] init];
        _imgView.contentMode = UIViewContentModeCenter;
    }
    return _imgView;
}
@end