keyboard/keyBoard/Class/Me/V/KBSkinBottomActionView.m

//
//  KBSkinBottomActionView.m
//  keyBoard
//
//

#import "KBSkinBottomActionView.h"

@interface KBSkinBottomActionView ()
@property (nonatomic, strong) UIView *contentView;       // 内部容器，使内容整体居中
@property (nonatomic, strong) UIStackView *stackView;    // 水平排列 Title/Icon/Price
@property (nonatomic, strong) UILabel *titleLabel;       // 左侧标题
@property (nonatomic, strong) UIImageView *coinImageView; // 中间图标（可选）
@property (nonatomic, strong) UILabel *priceLabel;       // 右侧价格
@end

@implementation KBSkinBottomActionView

+ (CGFloat)preferredHeight { return 45.0; }

- (instancetype)initWithFrame:(CGRect)frame {
    if (self = [super initWithFrame:frame]) {
        self.backgroundColor = [UIColor colorWithHex:KBColorValue];
        self.layer.masksToBounds = YES; // 圆角生效

        // 高亮态轻微透明，突出点击感
        [self addTarget:self action:@selector(onTouchDown) forControlEvents:UIControlEventTouchDown];
        [self addTarget:self action:@selector(onTouchUp) forControlEvents:UIControlEventTouchUpInside | UIControlEventTouchUpOutside | UIControlEventTouchCancel];

        // 内部容器，承载三个元素，容器整体水平/垂直居中
        [self addSubview:self.contentView];
        [self.contentView mas_makeConstraints:^(MASConstraintMaker *make) {
            make.centerX.equalTo(self);
            make.centerY.equalTo(self);
            // 防止文本过长时超出左右边界
            make.left.greaterThanOrEqualTo(self).offset(16);
            make.right.lessThanOrEqualTo(self).offset(-16);
        }];

        // 三个元素放进容器，左右顺序：Title - Icon - Price
        [self.contentView addSubview:self.stackView];
        [self.stackView mas_makeConstraints:^(MASConstraintMaker *make) {
            make.edges.equalTo(self.contentView);
        }];
        [self.stackView addArrangedSubview:self.titleLabel];
        [self.stackView addArrangedSubview:self.coinImageView];
        [self.stackView addArrangedSubview:self.priceLabel];
        if (@available(iOS 11.0, *)) {
            [self.stackView setCustomSpacing:8 afterView:self.titleLabel];
            [self.stackView setCustomSpacing:6 afterView:self.coinImageView];
        }
        [self.coinImageView mas_makeConstraints:^(MASConstraintMaker *make) {
            make.width.height.mas_equalTo(18);
        }];

        // 默认文案
        self.titleText = @"Download";
        self.priceText = @"20";
        UIImage *img = [UIImage systemImageNamed:@"circle.fill"];
        self.iconImage = img; // 若项目没有金币图标，用系统占位（黄色）
        self.coinImageView.tintColor = [UIColor colorWithRed:1.0 green:0.85 blue:0.2 alpha:1.0];
        self.showsPrice = YES;
        // 点击回调（可选）
        [self addTarget:self action:@selector(handleTap) forControlEvents:UIControlEventTouchUpInside];
    }
    return self;
}

- (void)layoutSubviews {
    [super layoutSubviews];
    // 圆角随高度自适应
    self.layer.cornerRadius = CGRectGetHeight(self.bounds) * 0.5;
}

#pragma mark - Public

- (void)configWithTitle:(nullable NSString *)title price:(nullable NSString *)price icon:(nullable UIImage *)icon {
    if (title.length) self.titleText = title;
    if (price.length) self.priceText = price;
    if (icon) self.iconImage = icon;
}

#pragma mark - Actions

- (void)onTouchDown { self.alpha = 0.85; }
- (void)onTouchUp { self.alpha = 1.0; }

- (void)handleTap {
    if (self.tapHandler) { self.tapHandler(); }
}

#pragma mark - Setters

- (void)setTitleText:(NSString *)titleText {
    _titleText = [titleText copy];
    self.titleLabel.text = _titleText;
}

- (void)setPriceText:(NSString *)priceText {
    _priceText = [priceText copy];
    if (self.showsPrice) {
        self.priceLabel.text = _priceText;
    }
}

- (void)setIconImage:(UIImage *)iconImage {
    _iconImage = iconImage;
    self.coinImageView.image = _iconImage;
}

- (void)setShowsPrice:(BOOL)showsPrice {
    if (_showsPrice == showsPrice) { return; }
    _showsPrice = showsPrice;
    self.coinImageView.hidden = !_showsPrice;
    self.priceLabel.hidden = !_showsPrice;
    self.priceLabel.text = _showsPrice ? self.priceText : @"";
    if (@available(iOS 11.0, *)) {
        [self.stackView setCustomSpacing:_showsPrice ? 8 : 0 afterView:self.titleLabel];
    }
}

#pragma mark - Lazy

- (UILabel *)titleLabel {
    if (!_titleLabel) {
        _titleLabel = [[UILabel alloc] init];
        _titleLabel.font = [KBFont medium:16];
        _titleLabel.textColor = [UIColor whiteColor];
        _titleLabel.textAlignment = NSTextAlignmentCenter;
    }
    return _titleLabel;
}

- (UIView *)contentView {
    if (!_contentView) {
        _contentView = [[UIView alloc] init];
        _contentView.backgroundColor = [UIColor clearColor];
        // 让容器尽量包裹内容
        [_contentView setContentHuggingPriority:UILayoutPriorityRequired forAxis:UILayoutConstraintAxisHorizontal];
        [_contentView setContentCompressionResistancePriority:UILayoutPriorityRequired forAxis:UILayoutConstraintAxisHorizontal];
    }
    return _contentView;
}

- (UIStackView *)stackView {
    if (!_stackView) {
        _stackView = [[UIStackView alloc] init];
        _stackView.axis = UILayoutConstraintAxisHorizontal;
        _stackView.alignment = UIStackViewAlignmentCenter;
        _stackView.spacing = 6;
    }
    return _stackView;
}

- (UIImageView *)coinImageView {
    if (!_coinImageView) {
        _coinImageView = [[UIImageView alloc] init];
        _coinImageView.contentMode = UIViewContentModeScaleAspectFit;
        _coinImageView.clipsToBounds = YES;
    }
    return _coinImageView;
}

- (UILabel *)priceLabel {
    if (!_priceLabel) {
        _priceLabel = [[UILabel alloc] init];
        _priceLabel.font = [KBFont medium:16];
        _priceLabel.textColor = [UIColor whiteColor];
        _priceLabel.textAlignment = NSTextAlignmentCenter;
    }
    return _priceLabel;
}

@end