亚洲乱码中文字幕综合,中国熟女仑乱hd,亚洲精品乱拍国产一区二区三区,一本大道卡一卡二卡三乱码全集资源,又粗又黄又硬又爽的免费视频

Core Animation一些Demo總結(jié) （動(dòng)態(tài)切換圖片、大轉(zhuǎn)盤、圖片折疊、進(jìn)度條等動(dòng)畫效果）

 更新時(shí)間：2016年02月21日 15:09:42   作者：紫憶  
這篇文章主要介紹了Core Animation一些Demo總結(jié) （動(dòng)態(tài)切換圖片、大轉(zhuǎn)盤、圖片折疊、進(jìn)度條等動(dòng)畫效果）的相關(guān)資料,需要的朋友可以參考下

前一篇總結(jié)了Core Animation的一些基礎(chǔ)知識(shí)，這一篇主要是Core Animation 的一些應(yīng)用，涉及到CAShapeLayer、CAReplicatorLayer等圖層的知識(shí)。

先看效果圖：

1、切換圖片：


2、彩票轉(zhuǎn)盤

3、圖片折疊

4、進(jìn)度條旋轉(zhuǎn)

5、粒子效果

一、切換圖片

看起來很復(fù)雜的動(dòng)畫，通過少量的計(jì)算和編碼就可以簡(jiǎn)單的實(shí)現(xiàn)。要做到這一步，必須是需要研究iOS開發(fā)中的Core Animation和Core Graphics框架的。日常工作中，對(duì)于很多東西不求甚解，只是拿過來用，甚至都不研究、封裝一下別人代碼，這種做法是很不好的。我喜歡自己造輪子，輪子造多了，開發(fā)經(jīng)驗(yàn)與思維也就提升上去了。

這個(gè)動(dòng)畫實(shí)現(xiàn)是比較簡(jiǎn)單的，利用了CABasicAnimation、CAKeyframeAnimation和CAAnimationGroup?？此剖莾蓮垐D片各自有著自己不同的動(dòng)畫，實(shí)際不過是一個(gè)動(dòng)畫方法，其平移方向與旋轉(zhuǎn)角度的不同。

我是用了CABasicAnimation設(shè)置了view的zPosition值，CAKeyframeAnimation對(duì)象設(shè)計(jì)了圖片的位移與旋轉(zhuǎn)動(dòng)畫，然后將之放到CAAnimationGroup對(duì)象里面，開始動(dòng)畫。

這里有一個(gè)注意點(diǎn)，那就是Core Animation設(shè)置的動(dòng)畫位移、旋轉(zhuǎn)、縮放都只是一個(gè)假象，實(shí)際上的view該怎么還是怎么樣，并未真正有過變化。所以，在動(dòng)畫結(jié)束后，想要正確的效果，那么需要設(shè)置view的zPosition值，這個(gè)值越大，view越在前面（z軸方向上的“前面”）。

代碼：

#import "ViewController.h"
@interface ViewController ()
@property (nonatomic, strong) NSMutableArray *images;
@property (nonatomic, assign) int currentIndex;
@property (weak, nonatomic) IBOutlet UIImageView *currentImageView;
@property (weak, nonatomic) IBOutlet UIImageView *behindImageView;
@end
@implementation ViewController

- (NSMutableArray *)images
{
if (_images == nil) {
_images = [NSMutableArray array];

for (int i = 1; i <= 7; i++) {
UIImage *image = [UIImage imageNamed: [NSString stringWithFormat:@"%d",i]];
[_images addObject:image];
}
}
return _images;
}
- (void)viewDidLoad
{
[super viewDidLoad];

self.currentIndex = 0;
self.currentImageView.image = self.images[_currentIndex];
}
- (void)addAnimateWithPoint:(CGPoint )point angle:(CGFloat)angle fromZ:(CGFloat)fromZ toZ:(CGFloat)toZ view:(UIView *)view
{
CABasicAnimation *zPosition = [[CABasicAnimation alloc] init];
zPosition.keyPath = @"zPosition";
zPosition.fromValue = @(fromZ);
zPosition.toValue = @(toZ);
zPosition.duration = 1.2;
CAKeyframeAnimation *rotation = [[CAKeyframeAnimation alloc] init];
rotation.keyPath = @"transform.rotation";
rotation.values = @[@(0), @(angle), @(0)];
rotation.duration = 2;
rotation.timingFunctions = @[
[CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionEaseInEaseOut],
[CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionEaseInEaseOut]];
CAKeyframeAnimation *position = [[CAKeyframeAnimation alloc] init];
position.keyPath = @"position";
// CGPointMake(110, -20)
position.values = @[
[NSValue valueWithCGPoint:CGPointZero],
[NSValue valueWithCGPoint:point],
[NSValue valueWithCGPoint:CGPointZero]
];
position.timingFunctions = @[
[CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionEaseInEaseOut],
[CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionEaseInEaseOut]
];
position.additive = YES;
position.duration = 1.2;
CAAnimationGroup *animateGroup = [[CAAnimationGroup alloc] init];
animateGroup.animations = @[zPosition, rotation, position];
// animateGroup.beginTime = 0.5;
animateGroup.delegate = self;
animateGroup.duration = 1.2;
[animateGroup setValue:view forKey:@"view"];
[view.layer addAnimation:animateGroup forKey:nil]; 
view.layer.zPosition = toZ;

}
- (void)animationDidStop:(CAAnimation *)anim finished:(BOOL)flag
{
CAAnimationGroup *group = [anim valueForKey:@"view"];
if (group != nil) {
self.currentImageView.image = self.images[_currentIndex];
self.currentImageView.layer.zPosition = 1;
self.behindImageView.image = nil;
self.behindImageView.layer.zPosition = -1;
}
}
- (IBAction)previous:(id)sender {
self.currentIndex = (self.currentIndex + 1) % self.images.count;
self.behindImageView.image = self.images[_currentIndex];

[self addAnimateWithPoint:CGPointMake(-90, 20) angle:0.15 fromZ:-1 toZ:1 view:self.behindImageView];
[self addAnimateWithPoint:CGPointMake(90, -20) angle:-0.15 fromZ:1 toZ:-1 view:self.currentImageView];
}
- (IBAction)next:(id)sender {
self.currentIndex = (self.currentIndex + 6) % self.images.count;
self.behindImageView.image = self.images[_currentIndex];
[self addAnimateWithPoint:CGPointMake(-90, 20) angle:-0.15 fromZ:-1 toZ:1 view:self.behindImageView];
[self addAnimateWithPoint:CGPointMake(90, -20) angle:0.15 fromZ:1 toZ:-1 view:self.currentImageView];
}
@end

二、彩票轉(zhuǎn)盤

這個(gè)動(dòng)畫的實(shí)現(xiàn)主要難點(diǎn)在于Button的擺放，只要擺放好button，其他就是簡(jiǎn)單的添加動(dòng)畫的一個(gè)過程。

12個(gè)星座，那么需要12個(gè)button。在擺放它們的時(shí)候，我是將一個(gè)個(gè)button的anchorPoint設(shè)置為(0.5, 1)，將button的position設(shè)置為中心圓的圓心，然后設(shè)置transform來旋轉(zhuǎn)它們，是的達(dá)到圍繞一個(gè)圓擺放的目的。

需要知道的是，一般來說，控件的anchorPoint就是控件的中心點(diǎn)，所以在我們做旋轉(zhuǎn)、平移等操作的時(shí)候，也就是在圍繞中心點(diǎn)的一系列操作。但是，很多時(shí)候，只是圍繞中心點(diǎn)來設(shè)置動(dòng)畫的話，會(huì)很復(fù)雜，CALayer提供了一個(gè)anchorPoint屬性，可以讓我們自由的改變其數(shù)值，從而實(shí)現(xiàn)比較復(fù)雜的動(dòng)畫。

還有就是button的點(diǎn)擊事件，事實(shí)上由于一個(gè)扇形區(qū)域是上邊大，下邊小，要是不做相應(yīng)的限制，當(dāng)用戶點(diǎn)擊下面的區(qū)域時(shí)，很可能不是選中當(dāng)前的button，因此要做一定的限制。這里我是自定義了一個(gè)button，在里面重寫了hitTest: WwthEvent: 方法，這個(gè)方法可以設(shè)置你所要監(jiān)聽事件的區(qū)域范圍。

代碼：

#import "ZYWheelView.h"
#define ZYImageW 40
#define ZYImageH 46
@interface ZYButton : UIButton
@end
@implementation ZYButton

/**
* 重寫此方法，截取button的點(diǎn)擊
*
*/
- (UIView *)hitTest:(CGPoint)point withEvent:(UIEvent *)event
{
CGFloat btnW = self.bounds.size.width;
CGFloat btnH = self.bounds.size.height;
CGFloat x = 0;
CGFloat y = btnH / 2;
CGFloat w = btnW;
CGFloat h = y;
CGRect rect = CGRectMake(x, y, w, h);
if (CGRectContainsPoint(rect, point)) {
return nil;
}else{
return [super hitTest:point withEvent:event];
}
}
- (CGRect)imageRectForContentRect:(CGRect)contentRect
{
CGFloat imageX = (contentRect.size.width - ZYImageW ) * 0.5;
CGFloat imageY = 18;
return CGRectMake(imageX, imageY, ZYImageW, ZYImageH);
}
- (void)setHighlighted:(BOOL)highlighted
{ 
}
@end
@interface ZYWheelView ()
@property (weak, nonatomic) IBOutlet UIImageView *wheelView;

@property (nonatomic, weak) UIButton *lastSelectedBtn;

@property (nonatomic, strong) CADisplayLink *timer;
@end
@implementation ZYWheelView
+ (instancetype)wheelView
{
return [[[NSBundle mainBundle] loadNibNamed:@"ZYWheelView" owner:nil options:nil] lastObject];
}
- (void)awakeFromNib
{
self.wheelView.userInteractionEnabled = YES;
CGFloat angle = 2 * M_PI / 12.0;

UIImage *normalImage = [UIImage imageNamed:@"LuckyAstrology"];
UIImage *selectedImage = [UIImage imageNamed:@"LuckyAstrologyPressed"];
for (int bi = 0; bi < 12; bi++) {
ZYButton *btn = [[ZYButton alloc] init];
[btn setBackgroundImage:[UIImage imageNamed:@"LuckyRototeSelected"] forState:UIControlStateSelected];
// 切割圖片,將切割好的圖片設(shè)置到按鈕上
// CGImage中rect是當(dāng)做像素來使用
// UIKit 中是點(diǎn)坐標(biāo)系
// 坐標(biāo)系的特點(diǎn):如果在非retain屏上 1個(gè)點(diǎn)等于1個(gè)像素
// 在retain屏上1個(gè)點(diǎn)等于2個(gè)像素
CGFloat imageH = ZYImageH * [UIScreen mainScreen].scale;
CGFloat imageW = ZYImageW * [UIScreen mainScreen].scale;
CGFloat imageY = 0;
CGFloat imageX = bi * imageW;
CGRect rect = CGRectMake(imageX, imageY, imageW, imageH);
CGImageRef normalRef = CGImageCreateWithImageInRect(normalImage.CGImage, rect);
CGImageRef selectedRef = CGImageCreateWithImageInRect(selectedImage.CGImage, rect);
[btn setImage:[UIImage imageWithCGImage:normalRef] forState:UIControlStateNormal];
[btn setImage:[UIImage imageWithCGImage:selectedRef] forState:UIControlStateSelected];
btn.bounds = CGRectMake(0, 0, 58, 143);
btn.layer.anchorPoint = CGPointMake(0.5, 1);
btn.layer.position = CGPointMake(self.frame.size.width * 0.5, self.frame.size.height * 0.5);
btn.transform = CGAffineTransformMakeRotation(angle * bi);
[btn addTarget:self action:@selector(clickBtn:) forControlEvents:UIControlEventTouchUpInside];
[self.wheelView addSubview:btn];
}
[self startRotating];
}
- (void)startRotating
{
if (self.timer) return;
self.timer = [CADisplayLink displayLinkWithTarget:self selector:@selector(updateTimer)];
[self.timer addToRunLoop:[NSRunLoop mainRunLoop] forMode:NSRunLoopCommonModes];
}
- (void)stopRotating
{
[self.timer invalidate];
self.timer = nil;
}
- (void)clickBtn:(UIButton *)btn
{
self.lastSelectedBtn.selected = NO;
btn.selected = YES;
self.lastSelectedBtn = btn;
}
- (IBAction)clickCenterBtn:(id)sender {
self.userInteractionEnabled = NO;
[self stopRotating];
CABasicAnimation *basicAnimation = [CABasicAnimation animationWithKeyPath:@"transform.rotation"];
basicAnimation.toValue = @(M_PI * 2 * 5);
basicAnimation.duration = 2;
basicAnimation.timingFunction = [CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionEaseInEaseOut];
// basicAnimation.removedOnCompletion = NO;
// basicAnimation.fillMode = kCAFillModeForwards;
basicAnimation.delegate = self;
[self.wheelView.layer addAnimation:basicAnimation forKey:nil];
}
- (void)animationDidStop:(CAAnimation *)anim finished:(BOOL)flag
{
self.userInteractionEnabled = YES;
// 根據(jù)選中的按鈕獲取旋轉(zhuǎn)的度數(shù),
// 通過transform獲取角度
CGFloat angle = atan2(self.lastSelectedBtn.transform.b, self.lastSelectedBtn.transform.a);
// 從實(shí)際上旋轉(zhuǎn)轉(zhuǎn)盤
self.wheelView.transform = CGAffineTransformMakeRotation(-angle);
dispatch_after(dispatch_time(DISPATCH_TIME_NOW, (int64_t)(1 * NSEC_PER_SEC)), dispatch_get_main_queue(), ^{
[self startRotating];
}); 
}
- (void)updateTimer
{
self.wheelView.transform = CGAffineTransformRotate(self.wheelView.transform, M_PI / 200);
}
- (void)dealloc
{
[self stopRotating];
}
@end

3、圖片折疊

這個(gè)效果看起來很炫酷，但實(shí)際做起來是比較簡(jiǎn)單的。需要三個(gè)View，兩個(gè)UIImageView，一個(gè)接受拖拽action的View。CALayer里面有個(gè)contentRect屬性，它可以設(shè)置layer里面的顯示內(nèi)容，利用這個(gè)屬性，我們可以做在下載圖片時(shí)，下載一點(diǎn)展示一點(diǎn)的效果。 在這里，我用這個(gè)屬性來這是兩張UIImageView各自展示一半的圖片，然后將這兩張ImageView拼接在一起，顯示完整的圖片。

在一個(gè)覆蓋這張完整圖片的View上添加拖拽手勢(shì)，以實(shí)現(xiàn)動(dòng)畫過程。

這里有一個(gè)新的圖層需要學(xué)習(xí)下，CAGradientLayer，它是用來做顏色漸變的，用法與CALayer的用法相似：

屬性代碼：

CAGradientLayer *gradientLayer = [CAGradientLayer layer];
gradientLayer.frame = self.bottomView.bounds;
gradientLayer.opacity = 0;
gradientLayer.colors = @[(id)[UIColor clearColor].CGColor, (id)[UIColor blackColor].CGColor];
self.gradientLayer = gradientLayer;
[self.bottomView.layer addSublayer:gradientLayer];
// 設(shè)置漸變顏色
// gradientL.colors = @[(id)[UIColor redColor].CGColor,(id)[UIColor greenColor].CGColor,(id)[UIColor yellowColor].CGColor];
// 設(shè)置漸變定位點(diǎn)
// gradientL.locations = @[@0.1,@0.4,@0.5];
// 設(shè)置漸變開始點(diǎn)，取值0~1
// gradientL.startPoint = CGPointMake(0, 1);

設(shè)置好之后，在pan手勢(shì)的方法里面不斷改變gradientLayer的opacity即可達(dá)到想要的效果。

CATransform3D有個(gè)m34屬性，可以設(shè)置透視度，一般將這個(gè)值設(shè)置為- 1 / 500.0，特定需求可以微調(diào)這個(gè)值。

代碼：

#import "ViewController.h"
@interface ViewController ()
@property (weak, nonatomic) IBOutlet UIImageView *topView;
@property (weak, nonatomic) IBOutlet UIImageView *bottomView;
@property (weak, nonatomic) IBOutlet UIView *containView;
@property (nonatomic, weak) CAGradientLayer *gradientLayer;
@end
@implementation ViewController

- (void)viewDidLoad {
[super viewDidLoad];
// Do any additional setup after loading the view, typically from a nib.
[self setupOtherView];
//設(shè)置漸變的陰影
[self setupShadow];
}
- (void)setupOtherView
{
//設(shè)置contentsRect用來表示圖片顯示的大小，可以做邊下載邊顯示的UI效果,取值是(0--1)
self.topView.layer.contentsRect = CGRectMake(0, 0, 1, 0.5);
self.topView.layer.anchorPoint = CGPointMake(0.5, 1);
self.bottomView.layer.contentsRect = CGRectMake(0, 0.5, 1, 0.5);
self.bottomView.layer.anchorPoint = CGPointMake(0.5, 0);
UIPanGestureRecognizer *gesture = [[UIPanGestureRecognizer alloc] initWithTarget:self action:@selector(pan:)];
[self.containView addGestureRecognizer:gesture];
}
- (void)setupShadow
{
CAGradientLayer *gradientLayer = [CAGradientLayer layer];
gradientLayer.frame = self.bottomView.bounds;
gradientLayer.opacity = 0;
gradientLayer.colors = @[(id)[UIColor clearColor].CGColor, (id)[UIColor blackColor].CGColor];
self.gradientLayer = gradientLayer;
[self.bottomView.layer addSublayer:gradientLayer];
// 設(shè)置漸變顏色
// gradientL.colors = @[(id)[UIColor redColor].CGColor,(id)[UIColor greenColor].CGColor,(id)[UIColor yellowColor].CGColor];
// 設(shè)置漸變定位點(diǎn)
// gradientL.locations = @[@0.1,@0.4,@0.5];
// 設(shè)置漸變開始點(diǎn)，取值0~1
// gradientL.startPoint = CGPointMake(0, 1);
}
- (void)pan:(UIPanGestureRecognizer *)recognizer
{
CGFloat y = [recognizer translationInView:self.containView].y;
if (y >= 300) y = 300;
if (y <= -300) y = -300;
// 旋轉(zhuǎn)角度,往下逆時(shí)針旋轉(zhuǎn)
CGFloat angle = -y / 320.0 * M_PI;
self.topView.layer.transform = CATransform3DIdentity;
CATransform3D transfrom = CATransform3DIdentity;
transfrom.m34 = -1 / 500.0;
self.topView.layer.transform = CATransform3DRotate(transfrom, angle, 1, 0, 0);
self.gradientLayer.opacity = y / 300.0;
if (recognizer.state == UIGestureRecognizerStateEnded) {

// 彈簧效果的動(dòng)畫
// SpringWithDamping:彈性系數(shù),越小，彈簧效果越明顯
[UIView animateWithDuration:0.5 delay:0 usingSpringWithDamping:0.3 initialSpringVelocity:11 options:UIViewAnimationOptionCurveEaseInOut animations:^{
self.topView.layer.transform = CATransform3DIdentity;
self.gradientLayer.opacity = 0;
} completion:nil];
}
}
@end

4、旋轉(zhuǎn)進(jìn)度條

圓圈旋轉(zhuǎn)一般都是放在HUD上吧。記得以前我也做過一個(gè)類似的功能，那時(shí)候還沒現(xiàn)在這樣的知識(shí)儲(chǔ)備，只能是用CAKeyframeAnimation做，讓美工做出了一根頂部是一個(gè)小白點(diǎn)，除此之外，很長的那部分是為clearColor的小矩形，然后我設(shè)置它的anchorPoint，給 CAKeyframeAnimation添加一個(gè)圓形的path，然后圍繞這個(gè)path旋轉(zhuǎn)，做是勉強(qiáng)做出來，但是很不好看吧。

現(xiàn)在可以有更好的選擇了，CAReplicatorLayer（復(fù)制圖層）。我們可以在復(fù)制圖層里面添加一個(gè)instance圖層，如果設(shè)置了復(fù)制圖層的instanceCount，假如讓instanceCount == 5， 那么復(fù)制圖層會(huì)自動(dòng)幫我們復(fù)制5個(gè)跟instance圖層一樣的圖層（事實(shí)上，我們可以在一開始就給instance圖層設(shè)置動(dòng)畫，那么在復(fù)制的時(shí)候，一樣會(huì)把動(dòng)畫也復(fù)制過來），除此之外，還可以設(shè)置復(fù)制圖層里面的instance圖層的transfrom，從而實(shí)現(xiàn)一定的布局。復(fù)制圖層里面還有一個(gè)instanceDelay，它表示延遲多少時(shí)間開始動(dòng)畫等等。

這個(gè)Demo就是用了上面所說的實(shí)現(xiàn)的，代碼：

#import "ViewController.h"
@interface ViewController ()
@property (weak, nonatomic) IBOutlet UIView *containView;
@end
@implementation ViewController
- (void)viewDidLoad {
[super viewDidLoad];
// Do any additional setup after loading the view, typically from a nib.

[self setupReplicatorLayerAndAnimation];
}
- (void)setupReplicatorLayerAndAnimation
{
CAReplicatorLayer *replicatorLayer = [CAReplicatorLayer layer];
replicatorLayer.frame = self.containView.layer.bounds;
[self.containView.layer addSublayer:replicatorLayer];
CALayer *layer = [CALayer layer];
layer.frame = CGRectMake(self.containView.frame.size.width * 0.5, 20, 16, 16);
layer.backgroundColor = [UIColor redColor].CGColor;
layer.cornerRadius = layer.frame.size.width / 2;
//這一句可以將初始過程移除掉
layer.transform = CATransform3DMakeScale(0, 0, 0);
[replicatorLayer addSublayer:layer];
replicatorLayer.instanceCount = 22;
CABasicAnimation *basicAn = [CABasicAnimation animationWithKeyPath:@"transform.scale"];
basicAn.fromValue = @1;
basicAn.toValue = @0;
basicAn.duration = 1;
basicAn.repeatCount = MAXFLOAT;
[layer addAnimation:basicAn forKey:nil];
replicatorLayer.instanceDelay = basicAn.duration / (double)replicatorLayer.instanceCount;
replicatorLayer.instanceTransform = CATransform3DMakeRotation(2 * M_PI / replicatorLayer.instanceCount, 0, 0, 1);
}
@end

5、粒子效果

這個(gè)東西就是CAReplicatorLayer（復(fù)制圖層）和Core Graphics的結(jié)合吧，我是采用UIBezierPath來繪制線條，然后將繪制好的path賦值給小球的animation路徑，然后將小球添加到復(fù)制圖層，設(shè)置下instanceCount，設(shè)置下延遲時(shí)間，效果就出來了。

代碼：

#import "ZYDrawView.h"
@interface ZYDrawView ()
@property (nonatomic, strong) UIBezierPath *bezierPath;
@property (nonatomic, weak) CAReplicatorLayer *replicatorLayer;
@property (nonatomic, weak) CALayer *norLayer;
@end
static int _count = 0;
@implementation ZYDrawView
- (UIBezierPath *)bezierPath
{
if (_bezierPath == nil) {
_bezierPath = [[UIBezierPath alloc] init];
}
return _bezierPath;
}
- (void)awakeFromNib
{
CAReplicatorLayer *replicatorLayer = [CAReplicatorLayer layer];
replicatorLayer.frame = self.bounds;
[self.layer addSublayer:replicatorLayer];
CALayer *layer = [CALayer layer];
layer.frame = CGRectMake(0, -200, 10, 10);
layer.cornerRadius = layer.frame.size.width * 0.5;
layer.backgroundColor = [UIColor redColor].CGColor;
[replicatorLayer addSublayer:layer];
self.replicatorLayer = replicatorLayer;
self.norLayer = layer;
}
- (void)touchesBegan:(NSSet<UITouch *> *)touches withEvent:(UIEvent *)event
{
CGPoint curPoint = [[touches anyObject] locationInView:self];
[self.bezierPath moveToPoint:curPoint];

}
- (void)touchesMoved:(NSSet<UITouch *> *)touches withEvent:(UIEvent *)event
{
_count++;
CGPoint curPoint = [[touches anyObject] locationInView:self];
[self.bezierPath addLineToPoint:curPoint];
[self setNeedsDisplay];
}
- (void)startAnimation
{
CAKeyframeAnimation *keyframeAn = [CAKeyframeAnimation animationWithKeyPath:@"position"];
keyframeAn.path = self.bezierPath.CGPath;
keyframeAn.duration = 4;
keyframeAn.repeatCount = MAXFLOAT;
[self.norLayer addAnimation:keyframeAn forKey:nil];
self.replicatorLayer.instanceCount = _count;
self.replicatorLayer.instanceDelay = 0.1;
}
- (void)reDraw
{
_bezierPath = nil;
_count = 1;
[self.norLayer removeAllAnimations];

[self setNeedsDisplay];
}
- (void)drawRect:(CGRect)rect
{
[self.bezierPath stroke];
}
@end

以上內(nèi)容是小編給大家介紹的Core Animation一些Demo總結(jié) （動(dòng)態(tài)切換圖片、大轉(zhuǎn)盤、圖片折疊、進(jìn)度條等動(dòng)畫效果），希望對(duì)大家以上幫助！

相關(guān)文章

最新評(píng)論