my_yuyin/QXLive/活动/巡乐会/QXMeetLotteryView.m

//
//  QXMeetLotteryView.m
//  QXLive
//
//  Created by 启星 on 2025/9/2.
//

#import "QXMeetLotteryView.h"
#import <objc/runtime.h>
#import "GKCycleScrollView.h"

@interface QXMeetLotteryView ()<UIScrollViewDelegate,GKCycleScrollViewDataSource,GKCycleScrollViewDelegate>
@property (nonatomic, strong) UIScrollView *scrollView;
@property (nonatomic, assign) CGFloat itemWidth;
@property (nonatomic, assign) CGFloat itemSpace;
@property (nonatomic, assign) CGFloat targetOffset;
@property (nonatomic, assign) CGFloat maxWidth;
@property (nonatomic, strong) QXTimer *timer;
@end

@implementation QXMeetLotteryView

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

- (void)setup {
    
    // 创建scrollView
    self.scrollView = [[UIScrollView alloc] initWithFrame:self.bounds];
    self.scrollView.delegate = self;
    self.scrollView.showsHorizontalScrollIndicator = NO;
    self.scrollView.showsVerticalScrollIndicator = NO;
    self.scrollView.scrollEnabled = YES;
//    self.scrollView.hidden = YES;
    self.scrollView.decelerationRate = UIScrollViewDecelerationRateFast;
    [self addSubview:self.scrollView];
    _itemSpace = 25;
    _itemWidth = (self.scrollView.bounds.size.width - _itemSpace*2)/3;
    
}
-(void)resetToFirstItem{
//    [UIView animateWithDuration:6 animations:^{
        [self.scrollView setContentOffset:CGPointZero animated:NO];
//    }];
}
-(void)setPrizes:(NSArray *)prizes{
    _prizes = prizes;
    for (UIView *v in self.scrollView.subviews) {
        [v removeFromSuperview];
    }
    NSInteger itemMultiple = 1;
    if (_prizes.count == 0) {
        return;
    }
    itemMultiple = 70/prizes.count;
    CGFloat maxWidth = 0;
    for (int i = 0; i < _prizes.count*itemMultiple+1; i++) {
        QXMeetLotterySubView *giftView = [[QXMeetLotterySubView alloc] initWithFrame:CGRectMake((_itemWidth+_itemSpace)*i, 20, _itemWidth, self.scrollView.bounds.size.height-40)];
        giftView.model = self.prizes[i%self.prizes.count];
        [self.scrollView addSubview:giftView];
        maxWidth = (_itemWidth+_itemSpace)*i+_itemWidth;
        _maxWidth = maxWidth;
    }
    self.scrollView.contentSize = CGSizeMake(maxWidth, self.scrollView.bounds.size.height);
}


-(void)setFinalPrizeIndex:(NSInteger)finalPrizeIndex{
    _finalPrizeIndex = finalPrizeIndex;
    _targetOffset = [self getTargetIndexOffset];
}

-(void)startLotteryAnimation{
//    self.scrollView.hidden = NO;
    [self.scrollView setContentOffset:CGPointZero animated:NO];
    MJWeakSelf
    [UIView animateWithDuration:6 delay:0 options:UIViewAnimationOptionCurveEaseInOut  animations:^{
//        [weakSelf.scrollView setContentOffset:CGPointMake(self.targetOffset-self.scrollView.bounds.size.width, 0) animated:NO];
        [weakSelf.scrollView setContentOffset:CGPointMake(self.targetOffset, 0) animated:NO];
    } completion:^(BOOL finished) {
//        [UIView animateWithDuration:3 delay:0 options:UIViewAnimationOptionCurveLinear animations:^{
//            [weakSelf.scrollView setContentOffset:CGPointMake(self.targetOffset, 0) animated:NO];
//        } completion:^(BOOL finished) {
            if (weakSelf.delegate && [weakSelf.delegate respondsToSelector:@selector(lotteryWheelDidStopAtIndex:)]) {
                [weakSelf.delegate lotteryWheelDidStopAtIndex:weakSelf.finalPrizeIndex];
            }
//        }];
    }];
    
    
}
-(void)scrollViewDidScroll:(UIScrollView *)scrollView{
  
}

-(CGFloat)getTargetIndexOffset{
    CGFloat targetOffset = 0;
    targetOffset = self.maxWidth-(self.itemSpace+self.itemWidth)*(3+(self.prizes.count-(self.finalPrizeIndex+1)))+self.itemSpace;
    return targetOffset;
}

- (void)stopAnimation {
}

@end


@implementation QXMeetLotterySubView

- (instancetype)initWithFrame:(CGRect)frame {
    if (self = [super initWithFrame:frame]) {
        [self initSubViews];
    }
    return self;
}
-(void)setModel:(QXDrawGiftModel *)model{
    _model = model;
    [self.giftImageView sd_setImageWithURL:[NSURL URLWithString:model.base_image]];
    self.giftNameLabel.text = model.gift_name;
    [self.giftCoinBtn setTitle:[NSString stringWithFormat:@" %@",model.gift_price] forState:(UIControlStateNormal)];
}
-(void)initSubViews{
    self.giftBgImageView = [[UIImageView alloc] initWithImage:[UIImage imageNamed:@"ac_cycle_gift_bg"]];
    [self addSubview:self.giftBgImageView];
    [self.giftBgImageView mas_makeConstraints:^(MASConstraintMaker *make) {
        make.edges.equalTo(self);
    }];
    
    self.giftImageView = [[UIImageView alloc] init];
    self.giftImageView.contentMode = UIViewContentModeScaleAspectFit;
    [self addSubview:self.giftImageView];
    [self.giftImageView mas_makeConstraints:^(MASConstraintMaker *make) {
        make.top.mas_equalTo(25);
        make.width.mas_equalTo(ScaleWidth(80));
        make.height.mas_equalTo(ScaleWidth(80));
        make.centerX.equalTo(self);
    }];
    
    
    self.giftNameBgImageView = [[UIImageView alloc] initWithImage:[UIImage imageNamed:@"ac_meet_gift_name_bg"]];
    self.giftNameBgImageView.contentMode = UIViewContentModeScaleToFill;
    [self addSubview:self.giftNameBgImageView];
    [self.giftNameBgImageView mas_makeConstraints:^(MASConstraintMaker *make) {
        make.left.right.equalTo(self);
        make.bottom.mas_equalTo(-32);
        make.height.mas_equalTo(30);
    }];
    
    self.giftNameLabel = [[UILabel alloc] init];
    self.giftNameLabel.textColor = RGB16(0xffffff);
    self.giftNameLabel.font = [UIFont systemFontOfSize:12];
    self.giftNameLabel.textAlignment = NSTextAlignmentCenter;
    [self addSubview:self.giftNameLabel];
    [self.giftNameLabel mas_makeConstraints:^(MASConstraintMaker *make) {
        make.top.left.right.equalTo(self.giftNameBgImageView);
        make.height.mas_equalTo(15);
    }];
    
    self.giftCoinBtn = [[UIButton alloc] initWithFrame:CGRectMake(self.giftImageView.left, self.giftNameLabel.bottom, self.giftImageView.width, 15)];
    [self.giftCoinBtn setTitleColor:RGB16(0xC7BF62) forState:(UIControlStateNormal)];
    [self.giftCoinBtn setImage:[UIImage imageNamed:@"sky_item_coin"] forState:(UIControlStateNormal)];
    self.giftCoinBtn.titleLabel.font = [UIFont systemFontOfSize:10];
    [self addSubview:self.giftCoinBtn];
    [self.giftCoinBtn mas_makeConstraints:^(MASConstraintMaker *make) {
        make.bottom.left.right.equalTo(self.giftNameBgImageView);
        make.height.mas_equalTo(15);
    }];
}

@end