CABasicAnimation学习Demo 包含了一些经常使用的动画效果

//
//  ViewController.m
//  CABasicAnimationDemo
//
//  Created by haotian on 14-6-13.
//  Copyright (c) 2014年 Baseus. All rights reserved.
//

#import "ViewController.h"

@interface ViewController ()

@end

@implementation ViewController
@synthesize ViewTest;
- (void)viewDidLoad
{
[super viewDidLoad];
// Do any additional setup after loading the view, typically from a nib.

//self.ViewTest.backgroundColor = [UIColor redColor];
//组合动画调用
//[self startAnimation2];

//永久闪烁动画
//[self opacityForever_Animation:0.3];

////有闪烁次数的动画
//[self opacityTimes_Animation:10 durTimes:0.3];

//画一条线    路径
[self drawACurvedLine];

//路径动画
//[self animateCicleAlongPath];

}

-(void)startAnimation
{
CABasicAnimation *animation = [CABasicAnimation animationWithKeyPath:@"position"];
animation.fromValue = [NSValue valueWithCGPoint:CGPointMake(50, 50)];
animation.toValue = [NSValue valueWithCGPoint:CGPointMake(300, 300)];
animation.duration = 3.0f;
animation.repeatCount = 1;
//animation.removedOnCompletion = NO; //完毕后是否回到原来状态，假设为NO 就是停留在动画结束时的状态
//animation.fillMode = kCAFillModeRemoved;//动画完毕后返回到原来状态
//animation.fillMode = kCAFillModeBackwards;
animation.fillMode = kCAFillModeForwards;//当动画完毕时，保留在动画结束的状态

[self.ViewTest.layer addAnimation:animation forKey:nil];
}

-(void)startAnimation1
{
CABasicAnimation *animation = [CABasicAnimation animationWithKeyPath:@"transform.translation.y"];
animation.fromValue = [NSNumber numberWithFloat:0.0f];
animation.toValue   = [NSNumber numberWithFloat:10.0f];
//animation.duration = 0.5f;
//animation.fillMode = kCAFillModeForwards;
//animation.removedOnCompletion = NO;
//animation.repeatCount = 2;
//[self.ViewTest.layer addAnimation:animation forKey:nil];

CABasicAnimation *animation1 = [CABasicAnimation animationWithKeyPath:@"transform.translation.x"];
animation.fromValue = [NSNumber numberWithFloat:0.0f];
animation.toValue   = [NSNumber numberWithFloat:10.0f];
//animation.duration = 0.5f;
//animation.fillMode = kCAFillModeForwards;
//animation.removedOnCompletion = NO;
//animation.repeatCount = 2;
//[self.ViewTest.layer addAnimation:animation1 forKey:nil];

CAAnimationGroup *groupAnimation = [CAAnimationGroup animation];
groupAnimation.duration = 2.0f;
groupAnimation.autoreverses  = YES;
groupAnimation.repeatCount = 5;
[groupAnimation setAnimations:[NSArray arrayWithObjects:animation,animation1, nil]];

[self.ViewTest.layer addAnimation:groupAnimation forKey:nil];
}

//组合动画
-(void)startAnimation2
{
//界限
CABasicAnimation *boundsAnimation = [CABasicAnimation animationWithKeyPath:@"bounds"];
boundsAnimation.fromValue = [NSValue valueWithCGRect: self.ViewTest.bounds];
boundsAnimation.toValue = [NSValue valueWithCGRect:CGRectZero];
//透明度变化
CABasicAnimation *opacityAnimation = [CABasicAnimation animationWithKeyPath:@"opacity"];
opacityAnimation.fromValue = [NSNumber numberWithFloat:1.0];
opacityAnimation.toValue = [NSNumber numberWithFloat:0.5];

//位置移动
CABasicAnimation *animation  = [CABasicAnimation animationWithKeyPath:@"position"];
animation.fromValue =  [NSValue valueWithCGPoint: self.ViewTest.layer.position];
CGPoint toPoint = self.ViewTest.layer.position;
toPoint.x += 180;
animation.toValue = [NSValue valueWithCGPoint:toPoint];

//旋转动画
CABasicAnimation* rotationAnimation =
[CABasicAnimation animationWithKeyPath:@"transform.rotation.z"];//"z"还能够是“x”“y”，表示沿z轴旋转

rotationAnimation.toValue = [NSNumber numberWithFloat:(2 * M_PI) * 3];
// 3 is the number of 360 degree rotations

// Make the rotation animation duration slightly less than the other animations to give it the feel
// that it pauses at its largest scale value
rotationAnimation.duration = 3.0f;
rotationAnimation.timingFunction = [CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionEaseInEaseOut]; //缓入缓出
//rotationAnimation.timingFunction = [CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionLinear];

//缩放动画
CABasicAnimation *scaleAnimation = [CABasicAnimation animationWithKeyPath:@"transform.scale"];
scaleAnimation.fromValue = [NSNumber numberWithFloat:0.0];
scaleAnimation.toValue = [NSNumber numberWithFloat:1.0];
scaleAnimation.duration = 3.0f;
scaleAnimation.timingFunction = [CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionEaseInEaseOut];
//组合动画
CAAnimationGroup *animationGroup = [CAAnimationGroup animation];
animationGroup.duration = 3.0f;
animationGroup.autoreverses = YES;   //是否重播，原动画的倒播
animationGroup.repeatCount = NSNotFound;//HUGE_VALF;     //HUGE_VALF,源自math.h
[animationGroup setAnimations:[NSArray arrayWithObjects:rotationAnimation, scaleAnimation,boundsAnimation, nil]];

//将上述两个动画编组

[self.ViewTest.layer addAnimation:animationGroup forKey:@"animationGroup"];
}

//永久闪烁的动画
-(void)opacityForever_Animation:(float)time
{
CABasicAnimation *animation=[CABasicAnimation animationWithKeyPath:@"opacity"];
animation.fromValue=[NSNumber numberWithFloat:1.0];
animation.toValue=[NSNumber numberWithFloat:0.0];
animation.autoreverses=YES;
animation.duration=time;
animation.repeatCount=FLT_MAX;
animation.removedOnCompletion=NO;
animation.fillMode=kCAFillModeForwards;

[self.ViewTest.layer addAnimation:animation forKey:@"opacityForever"];
}
/**************************************************************************/

//有闪烁次数的动画

-(void)opacityTimes_Animation:(float)repeatTimes durTimes:(float)time;
{
CABasicAnimation *animation=[CABasicAnimation animationWithKeyPath:@"opacity"];
animation.fromValue=[NSNumber numberWithFloat:1.0];
animation.toValue=[NSNumber numberWithFloat:0.4];
animation.repeatCount=repeatTimes;
animation.duration=time;
animation.removedOnCompletion=NO;
animation.fillMode=kCAFillModeForwards;
animation.timingFunction=[CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionEaseIn];
animation.autoreverses=YES;

[self.ViewTest.layer addAnimation:animation forKey:@"opacityTimes"];

}
/**************************************************************************/
//路径动画

-(void)keyframeAniamtion:(CGMutablePathRef)path durTimes:(float)time Rep:(float)repeatTimes
{

}

//在视图中画一条线
-(void)drawACurvedLine
{
UIGraphicsBeginImageContext(CGSizeMake(320, 460));
CGContextRef context = UIGraphicsGetCurrentContext();

CGContextSetLineWidth(context, 3);
CGContextSetStrokeColorWithColor(context, [UIColor blueColor].CGColor);
//设置起点
CGContextMoveToPoint(context, 10, 10);

CGContextAddQuadCurveToPoint(context, 10, 450, 310, 450);
//CGContextAddQuadCurveToPoint(context, 310, 10, 10, 10);

//划线
CGContextDrawPath(context, kCGPathStroke);

//得到一个image 从眼下的矢量上下文
UIImage *curve = UIGraphicsGetImageFromCurrentImageContext();
UIGraphicsEndImageContext();

UIImageView *curveView = [[UIImageView alloc]initWithImage:curve];
curveView.frame = CGRectMake(1, 1, 320, 460);
[curveView setBackgroundColor:[UIColor clearColor]];
[self.view addSubview:curveView];
}

-(void)animateCicleAlongPath
{
//准备关键帧动画
CAKeyframeAnimation *pathAnimation = [CAKeyframeAnimation animationWithKeyPath:@"position"];
pathAnimation.calculationMode = kCAAnimationPaced;
pathAnimation.fillMode = kCAFillModeForwards;
pathAnimation.removedOnCompletion = NO;
pathAnimation.duration = 5.0f;
pathAnimation.repeatCount = 200;
//pathAnimation.autoreverses = YES; //原路返回，而不是从头再来
//设置动画路径
//CGPoint endPoint = CGPointMake(310, 450);
CGMutablePathRef curvedPath = CGPathCreateMutable();
CGPathMoveToPoint(curvedPath, NULL, 10, 10);
CGPathAddQuadCurveToPoint(curvedPath, NULL, 10, 450, 310, 450);
CGPathAddQuadCurveToPoint(curvedPath, NULL, 310, 10, 10, 10);
//已经有了路径，我们要告诉动画  路径
pathAnimation.path = curvedPath;
CGPathRelease(curvedPath);  //这里要手工释放

[self.ViewTest.layer addAnimation:pathAnimation forKey:nil];

}
/**************************************************************************/

- (void)didReceiveMemoryWarning
{
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
}

@end