1v1/MSYOUPAI/NewCode/Module/InvitingPrizes/View/YMInvitingPrizesSharePosterPopupView.m

//
//  YMInvitingPrizesSharePosterPopupView.m
//  MSYOUPAI
//
//  Created by YoMi on 2024/3/15.
//  Copyright © 2024 MS. All rights reserved.
//

#import "YMInvitingPrizesSharePosterPopupView.h"
#import "YMInvitingPrizesViewModel.h"
@interface YMInvitingPrizesSharePosterPopupView ()<TYCyclePagerViewDataSource,TYCyclePagerViewDelegate>
/// 邀请有奖VM
@property (nonatomic, strong) YMInvitingPrizesViewModel *viewModel;
/// 海报图
@property (nonatomic, strong) TYCyclePagerView *posterView;
/// 按钮视图
@property (nonatomic, strong) UIView *buttonView;
/// 复制链接按钮
@property (nonatomic, strong) UIButton *copyLinkBtn;
/// 切换模式按钮
@property (nonatomic, strong) UIButton *switchModeBtn;
/// 保存二维码按钮
@property (nonatomic, strong) UIButton *saveQRCodeBtn;
/// 是否反方向
@property (nonatomic, assign) BOOL isReverseDirectionScroll;
@end

@implementation YMInvitingPrizesSharePosterPopupView

- (void)ym_setupViews{
    self.frame = CGRectMake(0, 0, kFrameWidth, kFrameHeight - kYMNavHeight);
    
    [self addSubview:self.posterView];
    [self addSubview:self.buttonView];
    [self.buttonView addSubview:self.copyLinkBtn];
    [self.buttonView addSubview:self.switchModeBtn];
    [self.buttonView addSubview:self.saveQRCodeBtn];
    
    [self setNeedsUpdateConstraints];
    [self updateConstraintsIfNeeded];
}

- (void)updateConstraints{
    [self.posterView mas_makeConstraints:^(MASConstraintMaker *make) {
        make.top.equalTo(self);
        make.left.equalTo(self);
        make.right.equalTo(self);
    }];
    
    [self.buttonView mas_makeConstraints:^(MASConstraintMaker *make) {
        make.top.equalTo(self.posterView.mas_bottom).offset(adapt(40));
        make.left.equalTo(self);
        make.right.equalTo(self);
        make.bottom.equalTo(self);
    }];
    
    [self.copyLinkBtn mas_makeConstraints:^(MASConstraintMaker *make) {
        make.centerY.equalTo(self.switchModeBtn.mas_centerY);
        make.right.equalTo(self.switchModeBtn.mas_left).offset(adapt(-15));
        make.size.mas_equalTo(CGSizeMake(adapt(120), adapt(120)));
    }];
    
    [self.switchModeBtn mas_makeConstraints:^(MASConstraintMaker *make) {
        make.centerX.equalTo(self.buttonView.mas_centerX);
        make.top.equalTo(self.buttonView).offset(adapt(20));
        make.bottom.equalTo(self.buttonView).offset(adapt(-20));
        make.size.mas_equalTo(CGSizeMake(adapt(120), adapt(120)));
    }];
    
    [self.saveQRCodeBtn mas_makeConstraints:^(MASConstraintMaker *make) {
        make.centerY.equalTo(self.switchModeBtn.mas_centerY);
        make.left.equalTo(self.switchModeBtn.mas_right).offset(adapt(15));
        make.size.mas_equalTo(CGSizeMake(adapt(120), adapt(120)));
    }];
    
//    NSArray *btnArr = @[self.copyLinkBtn,self.switchModeBtn,self.saveQRCodeBtn];
//
//    // 实现masonry水平固定控件宽度方法
//    // axisType     横排还是竖排
//    // fixedSpacing 两个控件间隔
//    // leadSpacing  第一个控件与边缘的间隔
//    // tailSpacing  最后一个控件与边缘的间隔
//    [btnArr mas_distributeViewsAlongAxis:MASAxisTypeHorizontal withFixedSpacing:adapt(15) leadSpacing:adapt(10) tailSpacing:adapt(10)];
//
//    // 设置array的垂直方向的约束
//    [btnArr mas_makeConstraints:^(MASConstraintMaker *make) {
//        make.top.equalTo(self.buttonView).offset(adapt(20));
//        make.bottom.equalTo(self.buttonView).offset(adapt(-20));
//        make.height.mas_equalTo(adapt(120));
//    }];
    
    [super updateConstraints];
}

- (void)ym_bindViewModel:(YMInvitingPrizesViewModel *)viewModel{
    if (!viewModel) {
        return;
    }
    
    _viewModel = viewModel;
    
    @weakify(self);
    [[self.viewModel.refreshUISubject takeUntil:self.rac_willDeallocSignal] subscribeNext:^(id result) {
        @strongify(self)
        [self.posterView reloadData];
    }];
    
}

#pragma mark - TYCyclePagerViewDataSource
- (NSInteger)numberOfItemsInPagerView:(TYCyclePagerView *)pageView {
    return self.viewModel.posterDataArray.count;
}

- (UICollectionViewCell *)pagerView:(TYCyclePagerView *)pagerView cellForItemAtIndex:(NSInteger)index {
    YMInvitingPrizesSharePosterCell *cell = [pagerView dequeueReusableCellWithReuseIdentifier:NSStringFromClass([YMInvitingPrizesSharePosterCell class]) forIndex:index];
    [cell ym_bindViewModel:self.viewModel.posterDataArray[index]];
    return cell;
}

/** banner样式*/
- (TYCyclePagerViewLayout *)layoutForPagerView:(TYCyclePagerView *)pageView {
    TYCyclePagerViewLayout *layout = [[TYCyclePagerViewLayout alloc]init];
    layout.itemSize = CGSizeMake(adapt(285), adapt(393));
    layout.itemSpacing = adapt(50);
    layout.itemHorizontalCenter = YES;
    layout.scrollDirection = TYCyclePagerScrollDirectionHorizontal;
    return layout;
}

#pragma mark - TYCyclePagerViewDelegate
/** pagerView当前展示*/
- (void)pagerView:(TYCyclePagerView *)pageView didScrollFromIndex:(NSInteger)fromIndex toIndex:(NSInteger)toIndex {
    
    if (toIndex == 0) {
        self.isReverseDirectionScroll = NO;
    }
    
    if (toIndex+1 == self.viewModel.posterDataArray.count) {
        self.isReverseDirectionScroll = YES;
    }
    
}

- (void)pagerView:(TYCyclePagerView *)pageView didSelectedItemCell:(__kindof UICollectionViewCell *)cell atIndex:(NSInteger)index{

}

- (void)pagerViewDidScroll:(TYCyclePagerView *)pageView{

}

/** pagerView将开始拖动*/
- (void)pagerViewWillBeginDragging:(TYCyclePagerView *)pageView{

}

/** pagerView将开始减速*/
- (void)pagerViewWillBeginDecelerating:(TYCyclePagerView *)pageView{

}

/** pagerView确认结束*/
- (void)pagerViewDidEndDragging:(TYCyclePagerView *)pageView willDecelerate:(BOOL)decelerate{

}

/** pagerView确认减速*/
- (void)pagerViewDidEndDecelerating:(TYCyclePagerView *)pageView{

}

/** pagerView将开始滚动动画*/
- (void)pagerViewWillBeginScrollingAnimation:(TYCyclePagerView *)pageView{

}

/** pagerView确认结束滚动动画*/
- (void)pagerViewDidEndScrollingAnimation:(TYCyclePagerView *)pageView{

}

- (void)switchModeScrollToItem{
    NSInteger currentIndex = self.posterView.curIndex;
    if (self.isReverseDirectionScroll) {
        currentIndex--;
        [self.posterView scrollToItemAtIndex:currentIndex animate:YES];
    } else {
        currentIndex++;
        [self.posterView scrollToItemAtIndex:currentIndex animate:YES];
    }
}

#pragma mark - 保存到相册
- (void)image:(UIImage *)image didFinishSavingWithError:(NSError *)error contextInfo:(void *)contextInfo {
    if(error) {
        [ZCHUDHelper showTitle:@"保存图片失败"];
    }else {
        [ZCHUDHelper showTitle:@"保存图片成功"];
    }
}

- (UIImage *)getCurrentImage {
    UIImage *image = nil;
    YMInvitingPrizesSharePosterCell *cell = (YMInvitingPrizesSharePosterCell *)[self.posterView curIndexCell];
    if (cell.finishedLoad) {
        image = [cell cutImage:cell.baseView];
    } else {
        [ZCHUDHelper showTitle:@"请等待图片加载完成"];
    }
    return image;
}


- (TYCyclePagerView *)posterView{
    if (!_posterView) {
        _posterView = [[TYCyclePagerView alloc]init];
        _posterView.dataSource = self;
        _posterView.delegate = self;
        //无限滚动
        _posterView.isInfiniteLoop = NO;
        //自动轮播
        _posterView.autoScrollInterval = 0;
        [_posterView registerClass:[YMInvitingPrizesSharePosterCell class] forCellWithReuseIdentifier:NSStringFromClass([YMInvitingPrizesSharePosterCell class])];
        _posterView.userInteractionEnabled = YES;
        WS(weakSelf)
        UITapGestureRecognizer *tap = [[UITapGestureRecognizer alloc] init];
        [_posterView addGestureRecognizer:tap];
        [[[tap rac_gestureSignal] takeUntil:self.rac_willDeallocSignal] subscribeNext:^(id x) {
            if (weakSelf.dismissBlock) {
                weakSelf.dismissBlock();
            }
        }];
    }
    return _posterView;
}

- (UIView *)buttonView{
    if (!_buttonView) {
        _buttonView = [[UIView alloc]init];
        _buttonView.backgroundColor = HexColorFromRGB(0xFFFFFF);
        [_buttonView addRectCorner:UIRectCornerTopLeft|UIRectCornerTopRight radius:adapt(10)];
        _buttonView.userInteractionEnabled = YES;
        WS(weakSelf)
        UITapGestureRecognizer *tap = [[UITapGestureRecognizer alloc] init];
        [_buttonView addGestureRecognizer:tap];
        [[[tap rac_gestureSignal] takeUntil:self.rac_willDeallocSignal] subscribeNext:^(id x) {
            if (weakSelf.dismissBlock) {
                weakSelf.dismissBlock();
            }
        }];
    }
    return _buttonView;
}

- (UIButton *)copyLinkBtn {
    if(!_copyLinkBtn){
        _copyLinkBtn = [UIButton buttonWithType:UIButtonTypeCustom];
        _copyLinkBtn.frame = CGRectMake(0,0,adapt(120),adapt(120));
        _copyLinkBtn.titleLabel.font = LCFont(12);
        [_copyLinkBtn setTitleColor:HexColorFromRGB(0x333333) forState:UIControlStateNormal];
        [_copyLinkBtn ym_imageLocationStyle:YMImageLocationStyleTop spacing:adapt(5) imageLocationBlock:^(UIButton * _Nonnull button) {
            [button setTitle:@"复制链接" forState:UIControlStateNormal];
            [button setImage:ImageByName(@"ym_inviting_prizes_share_poster_copy_link_icon") forState:UIControlStateNormal];
        }];
        WS(weakSelf)
        [[[_copyLinkBtn rac_signalForControlEvents:UIControlEventTouchUpInside] takeUntil:self.rac_willDeallocSignal] subscribeNext:^(id x) {
            UIPasteboard *pab = [UIPasteboard generalPasteboard];
            pab.string = weakSelf.viewModel.posterDataArray[0].qrCodeContent;
            if (pab == nil) {
                [ZCHUDHelper showTitle:@"复制失败"];
            }else{
                [ZCHUDHelper showTitle:@"已复制"];
            }
        }];
    }
    return _copyLinkBtn;
}

- (UIButton *)switchModeBtn {
    if(!_switchModeBtn){
        _switchModeBtn = [UIButton buttonWithType:UIButtonTypeCustom];
        _switchModeBtn.frame = CGRectMake(0,0,adapt(120),adapt(120));
        _switchModeBtn.titleLabel.font = LCFont(12);
        [_switchModeBtn setTitleColor:HexColorFromRGB(0x333333) forState:UIControlStateNormal];
        [_switchModeBtn ym_imageLocationStyle:YMImageLocationStyleTop spacing:adapt(5) imageLocationBlock:^(UIButton * _Nonnull button) {
            [button setTitle:@"切换模式" forState:UIControlStateNormal];
            [button setImage:ImageByName(@"ym_inviting_prizes_share_poster_switch_mode_icon") forState:UIControlStateNormal];
        }];
        WS(weakSelf)
        [[[_switchModeBtn rac_signalForControlEvents:UIControlEventTouchUpInside] takeUntil:self.rac_willDeallocSignal] subscribeNext:^(id x) {
            [weakSelf switchModeScrollToItem];
        }];
    }
    return _switchModeBtn;
}

- (UIButton *)saveQRCodeBtn {
    if(!_saveQRCodeBtn){
        _saveQRCodeBtn = [UIButton buttonWithType:UIButtonTypeCustom];
        _saveQRCodeBtn.frame = CGRectMake(0,0,adapt(120),adapt(120));
        _saveQRCodeBtn.titleLabel.font = LCFont(12);
        [_saveQRCodeBtn setTitleColor:HexColorFromRGB(0x333333) forState:UIControlStateNormal];
        [_saveQRCodeBtn ym_imageLocationStyle:YMImageLocationStyleTop spacing:adapt(5) imageLocationBlock:^(UIButton * _Nonnull button) {
            [button setTitle:@"保存二维码" forState:UIControlStateNormal];
            [button setImage:ImageByName(@"ym_inviting_prizes_share_poster_save_qr_code_icon") forState:UIControlStateNormal];
        }];
        WS(weakSelf)
        [[[_saveQRCodeBtn rac_signalForControlEvents:UIControlEventTouchUpInside] takeUntil:self.rac_willDeallocSignal] subscribeNext:^(id x) {
            UIImage *poster = [weakSelf getCurrentImage];
            if (poster == nil) {
                return;
            }
            NSData *imageData = UIImagePNGRepresentation(poster);
            UIImage *image = [UIImage imageWithData:imageData];
            UIImageWriteToSavedPhotosAlbum(image, self, @selector(image:didFinishSavingWithError:contextInfo:), nil);
        }];
    }
    return _saveQRCodeBtn;
}

@end

@interface YMInvitingPrizesSharePosterCell()
/** 海报lVM*/
@property (nonatomic, strong) YMInvitingPrizesSharePosterCellViewModel *viewModel;
/** 完成加载*/
@property (nonatomic, assign, readwrite) BOOL finishedLoad;
/** 海报图片*/
@property (nonatomic, strong) UIImageView *posterImage;
/** 用户头像图片*/
@property (nonatomic, strong) UIImageView *userAvatarImage;
/** 用户昵称标签*/
@property (nonatomic, strong) UILabel *userNicknameLb;
/** 用户代码标签*/
@property (nonatomic, strong) UILabel *userCodeLb;
/** 二维码图片*/
@property (nonatomic, strong) UIImageView *qrCodeImage;

@end

@implementation YMInvitingPrizesSharePosterCell

- (void)ym_setupViews{
    [self.contentView addSubview:self.baseView];
    [self.baseView addSubview:self.posterImage];
    [self.baseView addSubview:self.userAvatarImage];
    [self.baseView addSubview:self.userNicknameLb];
    [self.baseView addSubview:self.userCodeLb];
    [self.baseView addSubview:self.qrCodeImage];
    [self setNeedsUpdateConstraints];
    [self updateConstraintsIfNeeded];
}

- (void)updateConstraints {

    [self.baseView mas_makeConstraints:^(MASConstraintMaker *make) {
        make.top.equalTo(self.contentView);
        make.left.equalTo(self.contentView);
        make.right.equalTo(self.contentView);
        make.bottom.equalTo(self.contentView);
    }];
    
    [self.posterImage mas_makeConstraints:^(MASConstraintMaker *make) {
        make.top.equalTo(self.baseView);
        make.left.equalTo(self.baseView);
        make.right.equalTo(self.baseView);
    }];

    [self.userAvatarImage mas_makeConstraints:^(MASConstraintMaker *make) {
        make.top.equalTo(self.posterImage.mas_bottom).offset(adapt(30));
        make.left.equalTo(self.baseView).offset(adapt(30));
        make.width.height.mas_equalTo(adapt(60));
        make.bottom.equalTo(self.baseView).offset(adapt(-30));
    }];

    [self.userNicknameLb mas_makeConstraints:^(MASConstraintMaker *make) {
        make.bottom.equalTo(self.userAvatarImage.mas_centerY).offset(adapt(-5));
        make.left.equalTo(self.userAvatarImage.mas_right).offset(adapt(10));
    }];
    
    [self.userCodeLb mas_makeConstraints:^(MASConstraintMaker *make) {
        make.top.equalTo(self.userAvatarImage.mas_centerY).offset(adapt(5));
        make.left.equalTo(self.userAvatarImage.mas_right).offset(adapt(10));
    }];
    
    [self.qrCodeImage mas_makeConstraints:^(MASConstraintMaker *make) {
        make.centerY.equalTo(self.userAvatarImage).offset(adapt(0));
        make.right.equalTo(self.baseView).offset(adapt(-20));
        make.width.height.mas_equalTo(adapt(46));
    }];

    [super updateConstraints];
}

- (void)ym_bindViewModel:(YMInvitingPrizesSharePosterCellViewModel*)viewModel{

    if (!viewModel) {
        return;
    }

    _viewModel = viewModel;

    
//    [self.posterImage sd_setImageWithURL:[LCTools getImageUrlWithAddress:@""] placeholderImage:nil options:SDWebImageRetryFailed | SDWebImageHighPriority | SDWebImageProgressiveDownload | SDWebImageAvoidAutoSetImage | SDWebImageScaleDownLargeImages completed:^(UIImage * _Nullable image, NSError * _Nullable error, SDImageCacheType cacheType, NSURL * _Nullable imageURL) {
//        self.finishedLoad = image ? YES : NO;
//        if (image && cacheType == SDImageCacheTypeNone) {
//            CATransition *transition = [CATransition animation];
//            transition.type = kCATransitionFade;
//            transition.duration = 0.3;
//            transition.timingFunction = [CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionEaseOut];
//            [self.posterImage.layer addAnimation:transition forKey:nil];
//        }
//    }];

    self.finishedLoad = YES;
    
    self.posterImage.image = ImageByName(self.viewModel.posterUrl);
    
    //[self.userAvatarImage sd_setImageWithURL:[LCTools getImageUrlWithAddress:[LCSaveModel getUserModel].youpaipuserinfo.youpaipavatar]];
    self.userAvatarImage.image = [self createQRCodeWithData:self.viewModel.qrCodeContent size:adapt(120)];
    
    self.userNicknameLb.text = [LCSaveModel getUserModel].youpaipuserinfo.youpaipnickname;
    
    self.userCodeLb.text = stringFormat(@"用户号:%@",[LCSaveModel getUserModel].youpaipuserinfo.youpaipusercode);
    
    //UIImage *qrCode = [self createQRCodeWithData:self.viewModel.qrCodeContent size:adapt(100)];
    self.qrCodeImage.image = ImageByName(@"ym_inviting_prizes_share_app_icon");
}

- (UIImage *)cutImage {
    UIImage *imageRet = nil;
    int scale = [UIScreen mainScreen].scale;
    CGSize Ksize = CGSizeMake(self.posterImage.frame.size.width*scale, self.posterImage.frame.size.height*scale);
    // 传入的View.frame.size是0的话，直接返回nil，防止 UIGraphicsBeginImageContext() 传入0，导致崩溃
    if (CGSizeEqualToSize(Ksize, CGSizeZero)) {
        return nil;
    }
    UIGraphicsBeginImageContextWithOptions(Ksize, NO, scale);
    [self.posterImage.image drawInRect:CGRectMake(0,0, Ksize.width, Ksize.height)];
    imageRet = UIGraphicsGetImageFromCurrentImageContext();
    UIGraphicsEndImageContext();
    return imageRet;
}

- (UIImage *)cutImage:(UIView *)view {
    int scale = [UIScreen mainScreen].scale;
    CGSize shotSize = CGSizeMake(view.frame.size.width*scale, view.frame.size.height*scale);
    // 传入的View.frame.size是0的话，直接返回nil，防止 UIGraphicsBeginImageContext() 传入0，导致崩溃
    if (CGSizeEqualToSize(shotSize, CGSizeZero)) {
        return nil;
    }
    UIGraphicsBeginImageContextWithOptions(shotSize, NO, scale);
    [view.layer renderInContext:UIGraphicsGetCurrentContext()];
    UIImage *tempImage = UIGraphicsGetImageFromCurrentImageContext();
    UIGraphicsEndImageContext();

    CGImageRef imageRef = tempImage.CGImage;

    CGRect rect = CGRectMake(0,0, shotSize.width, shotSize.height);

    CGImageRef imageRefRect = CGImageCreateWithImageInRect(imageRef, rect);

    UIImage *image = [[UIImage alloc]initWithCGImage:imageRefRect];

    return image;
}

- (UIImage *)createQRCodeWithData:(NSString *)data size:(CGFloat)size{
    NSData *string_data = [data dataUsingEncoding:NSUTF8StringEncoding];
    // 1、二维码滤镜
    CIFilter *fileter = [CIFilter filterWithName:@"CIQRCodeGenerator"];
    [fileter setValue:string_data forKey:@"inputMessage"];
    /*
    L (低)：可以纠正7%左右的错误
    M (中)：可以纠正15%左右的错误
    Q (高)：可以纠正25%左右的错误
    H (高)：可以纠正30%左右的错误
    */
    [fileter setValue:@"H" forKey:@"inputCorrectionLevel"];
    CIImage *ciImage = fileter.outputImage;
    // 2、颜色滤镜
    CIFilter *color_filter = [CIFilter filterWithName:@"CIFalseColor"];
    [color_filter setValue:ciImage forKey:@"inputImage"];
    [color_filter setValue:[CIColor colorWithCGColor:HexColorFromRGB(0x000000).CGColor] forKey:@"inputColor0"];
    [color_filter setValue:[CIColor colorWithCGColor:HexColorFromRGB(0xFFFFFF).CGColor] forKey:@"inputColor1"];
    // 3、生成处理
    CIImage *outImage = color_filter.outputImage;
    CGFloat scale = size / outImage.extent.size.width;
    outImage = [outImage imageByApplyingTransform:CGAffineTransformMakeScale(scale, scale)];
    return [UIImage imageWithCIImage:outImage];
}

- (UIView *)baseView{
    if (!_baseView) {
        _baseView = [[UIView alloc]init];
        _baseView.backgroundColor = HexColorFromRGB(0xFFFFFF);
        [_baseView addRectCorner:UIRectCornerAllCorners radius:adapt(16)];
    }
    return _baseView;
}

- (UIImageView *)posterImage{
    if (!_posterImage) {
        _posterImage = [[UIImageView alloc]init];
        //_posterImage.contentMode = UIViewContentModeScaleAspectFit;
    }
    return _posterImage;
}

- (UIImageView *)userAvatarImage{
    if (!_userAvatarImage) {
        _userAvatarImage = [[UIImageView alloc]init];
        _userAvatarImage.contentMode = UIViewContentModeScaleAspectFit;
    }
    return _userAvatarImage;
}

- (UILabel *)userNicknameLb{
    if (!_userNicknameLb) {
        _userNicknameLb = [[UILabel alloc]init];
        _userNicknameLb.font = LCBoldFont(13);
        _userNicknameLb.textColor = HexColorFromRGB(0x333333);
        _userNicknameLb.textAlignment = NSTextAlignmentLeft;
        _userNicknameLb.text = @"*****";
        /**
         *抗拉伸 setContentHuggingPriority（值越高，越不容易拉伸）
         */
        [_userNicknameLb setContentHuggingPriority:UILayoutPriorityDefaultLow forAxis:UILayoutConstraintAxisHorizontal];
        /**
         *抗压缩 setContentCompressionResistancePriority（值越高，越不容易压缩）
         **/
        [_userNicknameLb setContentCompressionResistancePriority:UILayoutPriorityDefaultLow forAxis:UILayoutConstraintAxisHorizontal];
    }
    return _userNicknameLb;
}

- (UILabel *)userCodeLb{
    if (!_userCodeLb) {
        _userCodeLb = [[UILabel alloc]init];
        _userCodeLb.font = LCFont(12);
        _userCodeLb.textColor = HexColorFromRGB(0x666666);
        _userCodeLb.textAlignment = NSTextAlignmentLeft;
        _userCodeLb.text = @"*****";
        /**
         *抗拉伸 setContentHuggingPriority（值越高，越不容易拉伸）
         */
        [_userCodeLb setContentHuggingPriority:UILayoutPriorityDefaultLow forAxis:UILayoutConstraintAxisHorizontal];
        /**
         *抗压缩 setContentCompressionResistancePriority（值越高，越不容易压缩）
         **/
        [_userCodeLb setContentCompressionResistancePriority:UILayoutPriorityDefaultLow forAxis:UILayoutConstraintAxisHorizontal];
    }
    return _userCodeLb;
}

- (UIImageView *)qrCodeImage{
    if (!_qrCodeImage) {
        _qrCodeImage = [[UIImageView alloc]init];
    }
    return _qrCodeImage;
}


@end