LOL卡片动画

u=3668846399,252731330&fm=206&gp=0.jpg

lolAnimation.gif

小的先给客官呈上效果图。

这里的原型是我在cocoaChina上看到的，之后下载下来研究了下，发现他只是将大部分代码放在controller中，这样如果别的controller要用，得各种复制粘贴了。所以我将那些代码进行了封装。

在controller中只需

- (CardWith3DView *)cardsView {
    
    if (!_cardsView) {
        CGRect frame = CGRectMake(0, 100*k_IOS_Scale, 320*k_IOS_Scale, 280*k_IOS_Scale);
        _cardsView = [[CardWith3DView alloc] initWithFrame:frame
                                                  imageArr:self.imageArr
                                                     index:self.imageArr.count/2];
    }
    return _cardsView;
}

当然这个cardsView是封装后的View
那么在View中的是怎么写的呢?

- (instancetype)initWithFrame:(CGRect)frame imageArr:(NSArray *)arr index:(NSInteger)index {
    
    self = [super initWithFrame:frame];
    if (self) {
        [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(addGesToCardView) name:@"AddGes" object:nil];
        self.initialIndex = 0;
        self.isRight = YES;
        self.imageArr = [arr mutableCopy];
        [self addSubview:self.scrollView];
        [self initImageViewWithImageArr:arr];
        [self getCardsWithIndex:index];
    }
    return self;
}

这里面有些全局变量需要自己去懒加载的

- (UIScrollView *)scrollView {
    
    if (!_scrollView) {
        _scrollView = [UIScrollView new];
        _scrollView.frame = self.bounds;
        _scrollView.top = 0;
        _scrollView.contentSize = CGSizeMake((self.imageArr.count-1)*55*k_IOS_Scale+154*k_IOS_Scale+100*k_IOS_Scale + 50, 0);
        _scrollView.contentInset = UIEdgeInsetsMake(0, 0, 0, 0);
        _scrollView.backgroundColor = [UIColor blackColor];
        _scrollView.delegate = self;
    }
    return _scrollView;
}

接着就可以对每张图片的frame进行设置了,并且有些图片在y轴上进行了旋转。
在方法

- (void)initImageViewWithImageArr:(NSArray *)imgArr {
    
    NSMutableArray *imageViewArr = [NSMutableArray array];
    [imgArr enumerateObjectsUsingBlock:^(NSString *obj, NSUInteger idx, BOOL * _Nonnull stop) {
        NSString *ss = [[obj componentsSeparatedByString:@"/"] lastObject];
        UIImageView *imageView = [[UIImageView alloc] initWithImage:[UIImage imageNamed:ss]];
        imageView.tag = idx;
        imageView.layer.borderWidth = 3;
        imageView.layer.cornerRadius = 10;
        imageView.clipsToBounds = YES;
        imageView.layer.borderColor = [UIColor yellowColor].CGColor;
        imageView.userInteractionEnabled = YES;
        UITapGestureRecognizer *tap = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(imageTapClick:)];
        [imageView addGestureRecognizer:tap];
        if (idx == 0) {
            imageView.frame = CGRectMake(0, 0, 154*k_IOS_Scale, 280*k_IOS_Scale);
            imageView.center = CGPointMake(160*k_IOS_Scale, 140*k_IOS_Scale);
        }else{
            UIImageView *ima =[imageViewArr lastObject];
            if (idx == 1) {
                imageView.frame = CGRectMake(CGRectGetMaxX(ima.frame)-20*k_IOS_Scale, 20*k_IOS_Scale, 154*k_IOS_Scale, 230*k_IOS_Scale);
            }else{
                imageView.frame = CGRectMake((ima.frame.origin.x)+15*k_IOS_Scale, 20*k_IOS_Scale, 144*k_IOS_Scale, 230*k_IOS_Scale);
            }
            CATransform3D t = CATransform3DIdentity;
            t.m34 = 4.5/-2000;
            t = CATransform3DRotate(t, M_PI/2*3/4, 0, 1, 0);
            imageView.layer.transform = t;
        }
        [_scrollView addSubview:imageView];
        [imageViewArr addObject:imageView];
    }];
    self.cardsViewArr = [imageViewArr copy];
}

在上面的方法中会对每一张图片添加一个点击手势

- (void)imageTapClick:(UITapGestureRecognizer *)sender{
    
    if (self.initialIndex == sender.view.tag) {
        return;
    }
    if (self.initialIndex < sender.view.tag) {
        _isRight = YES;
    }else{
        _isRight = NO;
    }
    [self getCardsWithIndex:sender.view.tag];
}

接着当我们点击图片时我们会重新改变刚才图片初始化时的frame以及旋转的角度。把这些改变放在View的动画中。

- (void)updateFrameForVisilably{
    
    UIImageView *ima = self.cardsViewArr[self.initialIndex];
    if (self.initialIndex > 0 && self.initialIndex < self.cardsViewArr.count - 1) {
        
        UIImageView *pre = self.cardsViewArr[self.initialIndex-1];
        UIImageView *tail = self.cardsViewArr[self.initialIndex+1];
        
        CATransform3D t = CATransform3DIdentity;
        t.m34 = 4.5/-2000;
        t = CATransform3DRotate(t, -M_PI/2*3/4, 0, 1, 0);
        
        CATransform3D t2 = CATransform3DIdentity;
        t2.m34 = 4.5/-2000;
        t2 = CATransform3DRotate(t2, 0, 0, 1, 0);
        
        CATransform3D t3 = CATransform3DIdentity;
        t3.m34 = 4.5/-2000;
        t3 = CATransform3DRotate(t3, M_PI/2*3/4, 0, 1, 0);
    
        UIImageView *four = nil;
        if (self.initialIndex > 2&& self.initialIndex < self.cardsViewArr.count - 2) {
            if (_isRight) {
                four = self.cardsViewArr[self.initialIndex + 2];
            }else{
                four = self.cardsViewArr[self.initialIndex - 2];;
            }
        }
        [UIView animateWithDuration:1.0 delay:0 usingSpringWithDamping:0.8 initialSpringVelocity:0 options:0 animations:^{
            if (!_isRight) {
                four.frame = CGRectMake(55*(self.initialIndex)*k_IOS_Scale+30*k_IOS_Scale+154*k_IOS_Scale+55*k_IOS_Scale, 20*k_IOS_Scale, 144*k_IOS_Scale, 230*k_IOS_Scale);
                
                tail.layer.transform = t3;
                tail.frame = CGRectMake(55*(self.initialIndex-1)*k_IOS_Scale+240*k_IOS_Scale, 20*k_IOS_Scale, 144*k_IOS_Scale, 230*k_IOS_Scale);
                ima.layer.transform = t2;
                ima.frame = CGRectMake(55*(self.initialIndex-1)*k_IOS_Scale+110*k_IOS_Scale, 0, 154*k_IOS_Scale, 280*k_IOS_Scale);
                pre.layer.transform = t;
                pre.frame = CGRectMake(55*(self.initialIndex-1)*k_IOS_Scale+30*k_IOS_Scale, 20*k_IOS_Scale, 144*k_IOS_Scale, 230*k_IOS_Scale);
            }else{
                four.frame = CGRectMake(55*(self.initialIndex-1)*k_IOS_Scale+30*k_IOS_Scale, 20*k_IOS_Scale, 144*k_IOS_Scale, 230*k_IOS_Scale);
                pre.layer.transform = t;
                pre.frame = CGRectMake(55*(self.initialIndex-1)*k_IOS_Scale, 20*k_IOS_Scale, 144*k_IOS_Scale, 230*k_IOS_Scale);
                ima.layer.transform = t2;
                ima.frame = CGRectMake(55*(self.initialIndex-1)*k_IOS_Scale+30*k_IOS_Scale+80*k_IOS_Scale, 0, 154*k_IOS_Scale, 280*k_IOS_Scale);
                tail.layer.transform = t3;
                tail.frame = CGRectMake(55*(self.initialIndex-1)*k_IOS_Scale+30*k_IOS_Scale+154*k_IOS_Scale+55*k_IOS_Scale, 20*k_IOS_Scale, 144*k_IOS_Scale, 230*k_IOS_Scale);
            }
        } completion:^(BOOL finished) {
        }];
    }else if(self.initialIndex == 0){
        UIImageView *tail = self.cardsViewArr[self.initialIndex+1];
        CATransform3D t = CATransform3DIdentity;
        t.m34 = 4.5/-2000;
        t = CATransform3DRotate(t, -M_PI/2*3/4, 0, 1, 0);
        
        CATransform3D t2 = CATransform3DIdentity;
        t2.m34 = 4.5/-2000;
        t2 = CATransform3DRotate(t2, 0, 0, 1, 0);
        
        CATransform3D t3 = CATransform3DIdentity;
        t3.m34 = 4.5/-2000;
        t3 = CATransform3DRotate(t3, M_PI/2*3/4, 0, 1, 0);
        
        [UIView animateWithDuration:0.5 delay:0 usingSpringWithDamping:0.8 initialSpringVelocity:0 options:0 animations:^{
            ima.layer.transform = t2;
            ima.frame = CGRectMake(55*(self.initialIndex - 1)*k_IOS_Scale+110*k_IOS_Scale, 0, 154*k_IOS_Scale, 280*k_IOS_Scale);
            tail.layer.transform = t3;
            tail.frame = CGRectMake(55*(self.initialIndex - 1)*k_IOS_Scale+234*k_IOS_Scale, 20*k_IOS_Scale, 144*k_IOS_Scale, 230*k_IOS_Scale);
        }completion:^(BOOL finished) {
        }];
    
    }else if (self.initialIndex == self.cardsViewArr.count - 1){
        UIImageView *pre = self.cardsViewArr[self.initialIndex - 1];
        
        CATransform3D t = CATransform3DIdentity;
        t.m34 = 4.5/-2000;
        t = CATransform3DRotate(t, -M_PI/2*3/4, 0, 1, 0);
        
        CATransform3D t2 = CATransform3DIdentity;
        t2.m34 = 4.5/-2000;
        t2 = CATransform3DRotate(t2, 0, 0, 1, 0);
        [UIView animateWithDuration:0.5 delay:0 usingSpringWithDamping:0.8 initialSpringVelocity:0 options:0 animations:^{
            pre.layer.transform = t;
            pre.frame = CGRectMake(55*(self.initialIndex-1)*k_IOS_Scale+30*k_IOS_Scale, 20*k_IOS_Scale, 144*k_IOS_Scale, 230*k_IOS_Scale);
            ima.layer.transform = t2;
            ima.frame = CGRectMake(55*(self.initialIndex-1)*k_IOS_Scale+30*k_IOS_Scale+80*k_IOS_Scale, 0, 154*k_IOS_Scale, 280*k_IOS_Scale);
            
        }completion:^(BOOL finished) {
        }];
    }
}

- (void)updateFrame{
    
    for (NSInteger i=0; i<self.cardsViewArr.count; i++) {
        UIImageView *imageV = self.cardsViewArr[i];
        if (i==self.initialIndex) {
            if (i==0) {
                imageV.frame = CGRectMake(0, 0, 154*k_IOS_Scale, 280*k_IOS_Scale);
                imageV.center = CGPointMake(160*k_IOS_Scale, 140*k_IOS_Scale);
            }else{
                UIImageView *ima = self.cardsViewArr[i-1];
                imageV.frame = CGRectMake(ima.frame.origin.x+80*k_IOS_Scale, 0, 154*k_IOS_Scale, 280*k_IOS_Scale);
            }
            if (_isRight) {
                CATransform3D t = CATransform3DIdentity;
                t.m34 = 4.5/-2000;
                t = CATransform3DRotate(t, 0, 0, 1, 0);
                imageV.layer.transform = t;
            }else{
                CATransform3D t = CATransform3DIdentity;
                t.m34 = 4.5/-2000;
                t = CATransform3DRotate(t, 0, 0, 1, 0);
                imageV.layer.transform = t;
            }
        }else if (i<self.initialIndex){
            CATransform3D t = CATransform3DIdentity;
            t.m34 = 4.5/-2000;
            t = CATransform3DRotate(t, -M_PI/2*3/4, 0, 1, 0);
            imageV.layer.transform = t;
            imageV.frame = CGRectMake(55*i*k_IOS_Scale+30*k_IOS_Scale, 20*k_IOS_Scale, 144*k_IOS_Scale, 230*k_IOS_Scale);
            
        }else if (i>self.initialIndex){
            CATransform3D t = CATransform3DIdentity;
            t.m34 = 4.5/-2000;
            t = CATransform3DRotate(t, M_PI/2*3/4, 0, 1, 0);
            imageV.layer.transform = t;
            imageV.frame = CGRectMake(55*(i-1)*k_IOS_Scale+30*k_IOS_Scale+154*k_IOS_Scale+55*k_IOS_Scale, 20*k_IOS_Scale, 144*k_IOS_Scale, 230*k_IOS_Scale);
        }
    }
    UIImageView *imaa = self.cardsViewArr[self.initialIndex];
    _scrollView.contentOffset = CGPointMake(imaa.frame.origin.x-85, 0);
}

我们的View中有可以滑动的ScrollerVIew，所以这里当我们滑动View时可以响应的方法

- (void)swipeCardView:(UISwipeGestureRecognizer *)ges {
    
    if (ges == self.swipeRightGes && self.initialIndex != 0) {
        self.isRight = YES;
        [self getCardsWithIndex:--self.initialIndex];
    }else if (ges == self.swipeLeftGes && self.initialIndex != self.imageArr.count - 1) {
        self.isRight = NO;
        [self getCardsWithIndex:++self.initialIndex];
    }
}

这样的动画算是完成了，其实主要就是frame的变化和View的layer层会绕y轴进行角度旋转。

最后编辑于：2017.12.03 02:34:56

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LOL卡片动画

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