iOS 仿今日头条分享弹窗

客官°小女子只卖身不卖艺 2022-05-15 00:17 220阅读 0赞

## iOS 仿今日头条分享弹窗 ##

效果图如下所示  
![这里写图片描述][70]

**原理很简单,其实就是一个自定义View, 在创建的时候给每个按钮添加一个弹簧动画,实现此效果.**  
动画效果代码:

// 这里遍历按钮集合,添加动画
     [self.btnArray enumerateObjectsUsingBlock:^(UIButton *button, NSUInteger idx, BOOL * _Nonnull stop) {
            CGAffineTransform fromTransform = CGAffineTransformMakeTranslation(0, 50);
            button.transform = fromTransform;
            button.alpha = 0.3;
    
            [UIView animateWithDuration:0.9+idx*0.1 delay:0 usingSpringWithDamping:0.5 initialSpringVelocity:1.f options:UIViewAnimationOptionCurveEaseInOut animations:^{
                button.transform = CGAffineTransformIdentity;
                button.alpha = 1;
            } completion:^(BOOL finished) {
    
            }];
        }];

自定义View,实现布局

#define YLShareViewHeight 235.f // 高度
    #define YLShareViewShowDuration 0.3f // 动画时间
    
    @interface YLShareView ()
    /// 容器View
    @property (nonatomic, strong, readwrite) UIView *contentView;
    /// 取消按钮
    @property (nonatomic, strong, readwrite) UIButton *cancelBtn;
    /// 背景
    @property (nonatomic, strong, readwrite) UIView *bgView;
    /// 数据源
    @property (nonatomic, copy, readwrite) NSArray *dataSource;
    
    @property (nonatomic, strong, readwrite) NSMutableArray *btnArray;
    
    @property (nonatomic, strong, readwrite) UIScrollView *topScrollView;
    
    @property (nonatomic, strong, readwrite) UIScrollView *bottomScrollView;
    /// 分割线
    @property (nonatomic, strong, readwrite) UIView *lineView;
    
    @end
    
    @implementation YLShareView
    
    - (instancetype)initWithFrame:(CGRect)frame {
        if (self = [super initWithFrame:frame]) {
            [self _initValues];
            [self _initViews];
            [self _configData];
        }
        return self;
    }
    
    - (void)_initValues {
        self.backgroundColor = [[UIColor blackColor] colorWithAlphaComponent:.6f];
    }
    
    - (void)_initViews {
        // 背景View
        self.bgView = [[UIView alloc] init];
        self.bgView.backgroundColor = [UIColor clearColor];
        self.bgView.frame = CGRectMake(0, KScreenHeight, KScreenWidth, YLShareViewHeight);
        [self addSubview:self.bgView];
        // 取消按钮
        self.cancelBtn = [UIButton buttonWithType:UIButtonTypeCustom];
        self.cancelBtn.layer.backgroundColor = [[UIColor whiteColor] CGColor];
        self.cancelBtn.layer.cornerRadius = 5.f;
        [self.cancelBtn setTitle:@"取消" forState:UIControlStateNormal];
        [self.cancelBtn setTitleColor:[UIColor blackColor] forState:UIControlStateNormal];
        [self.bgView addSubview:self.cancelBtn];
        // 容器View
        self.contentView = [[UIView alloc] init];
        self.contentView.layer.backgroundColor = [[UIColor whiteColor] CGColor];
        self.contentView.layer.cornerRadius = 5.f;
        [self.bgView addSubview:self.contentView];
    
        self.topScrollView = [[UIScrollView alloc] init];
        self.topScrollView.showsHorizontalScrollIndicator = NO;
        [self.contentView addSubview:self.topScrollView];
    
        self.lineView = [[UIView alloc] init];
        self.lineView.layer.backgroundColor = [[UIColor blackColor] CGColor];
        [self.contentView addSubview:self.lineView];
    
        self.bottomScrollView = [[UIScrollView alloc] init];
        self.bottomScrollView.showsHorizontalScrollIndicator = NO;
        [self.contentView addSubview:self.bottomScrollView];
    }
    
    - (void)layoutSubviews {
        [super layoutSubviews];
        KWeakSelf(self);
        // 取消按钮
        [self.cancelBtn mas_makeConstraints:^(MASConstraintMaker *make) {
            make.left.equalTo(weakself.bgView.mas_left).offset(10);
            make.bottom.equalTo(weakself.bgView.mas_bottom).offset(10);
            make.right.equalTo(weakself.bgView.mas_right).offset(-10);
            make.height.mas_equalTo(44);
        }];
        // 容器View
        [self.contentView mas_makeConstraints:^(MASConstraintMaker *make) {
            make.top.equalTo(weakself.bgView.mas_top).offset(0);
            make.left.equalTo(weakself.cancelBtn.mas_left).offset(0);
            make.right.equalTo(weakself.cancelBtn.mas_right).offset(0);
            make.bottom.equalTo(weakself.cancelBtn.mas_top).offset(-5);
        }];
    
        [self.topScrollView mas_makeConstraints:^(MASConstraintMaker *make) {
            make.top.equalTo(weakself.contentView.mas_top).offset(0);
            make.left.equalTo(weakself.contentView.mas_left).offset(0);
            make.right.equalTo(weakself.contentView.mas_right).offset(0);
            make.height.equalTo(weakself.contentView.mas_height).multipliedBy(0.49);
        }];
    
        [self.lineView mas_makeConstraints:^(MASConstraintMaker *make) {
            make.left.equalTo(weakself.contentView.mas_left).offset(0);
            make.right.equalTo(weakself.contentView.mas_right).offset(0);
            make.height.mas_equalTo(0.5f);
            make.centerY.equalTo(weakself.contentView.mas_centerY).offset(0);
        }];
    
        [self.bottomScrollView mas_makeConstraints:^(MASConstraintMaker *make) {
            make.bottom.equalTo(weakself.contentView.mas_bottom).offset(0);
            make.left.equalTo(weakself.contentView.mas_left).offset(0);
            make.right.equalTo(weakself.contentView.mas_right).offset(0);
            make.height.equalTo(weakself.contentView.mas_height).multipliedBy(0.49);
        }];
    }
    
    - (void)showShareView {
        self.frame = [[UIScreen mainScreen] bounds];
        [[UIApplication sharedApplication].keyWindow addSubview:self];
        [UIView animateWithDuration:YLShareViewShowDuration animations:^{
           self.bgView.frame = CGRectMake(0, KScreenHeight - YLShareViewHeight - KSafeBottomMargin, self.bgView.yl_width, self.bgView.yl_height);
        }];
    }
    
    - (void)_dismissShareView {
        [UIView animateWithDuration:YLShareViewShowDuration animations:^{
            self.bgView.frame = CGRectMake(0, KScreenHeight, self.bgView.yl_width, self.bgView.yl_height);
        } completion:^(BOOL finished) {
            [self removeFromSuperview];
        }];
    }
    
    - (void)_configData {
        CGFloat height = (YLShareViewHeight - 44 - 15 - 0.5) / 2;
        for (int i = 0; i < self.dataSource.count; i ++) { 
            UIButton *btn = [UIButton buttonWithType:UIButtonTypeCustom];
            btn.frame = CGRectMake(height * i, 0, height, height);
            [btn setTitle:self.dataSource[i] forState:UIControlStateNormal];
            [btn setTitleRect:CGRectMake(0, height - 25, height, 25)];
            [btn setImageRect:CGRectMake((height - 35) / 2, (height - 60) / 2, 35, 35)];
            btn.titleLabel.font = N_15;
            btn.titleLabel.textAlignment = NSTextAlignmentCenter;
            [btn setImage:[UIImage imageNamed:@"ff_IconShowAlbum_25x25"] forState:UIControlStateNormal];
            [btn setTitleColor:[UIColor blackColor] forState:UIControlStateNormal];
            [self.topScrollView addSubview:btn];
            [self.btnArray addObject:btn];
    
        }
         [self.btnArray enumerateObjectsUsingBlock:^(UIButton *button, NSUInteger idx, BOOL * _Nonnull stop) {
            CGAffineTransform fromTransform = CGAffineTransformMakeTranslation(0, 50);
            button.transform = fromTransform;
            button.alpha = 0.3;
    
            [UIView animateWithDuration:0.9+idx*0.1 delay:0 usingSpringWithDamping:0.5 initialSpringVelocity:1.f options:UIViewAnimationOptionCurveEaseInOut animations:^{
                button.transform = CGAffineTransformIdentity;
                button.alpha = 1;
            } completion:^(BOOL finished) {
    
            }];
        }];
    
        self.topScrollView.contentSize = CGSizeMake(height * self.dataSource.count, height);
    //    self.bottomScrollView.contentSize = CGSizeMake(height * self.dataSource.count, height);
    }
    
    - (void)touchesBegan:(NSSet<UITouch *> *)touches withEvent:(UIEvent *)event {
        [self _dismissShareView];
    }
    
    - (NSArray *)dataSource {
        if (!_dataSource) {
            _dataSource = @[@"微信朋友圈", @"微信好友", @"手机QQ", @"QQ空间", @"新浪微博", @"腾讯微博", @"支付宝好友", @"支付宝生活圈"];
        }
        return _dataSource;
    }
    
    - (NSMutableArray *)btnArray {
        if (!_btnArray) {
            _btnArray = [NSMutableArray array];
        }
        return _btnArray;
    }

[70]: /images/20220515/17174ccdad404dda9b7178fe8f731489.png