CABasicAnimation学习Demo 包括了一些常用的动画效果(二)
Value valueWithCGPoint:toPoint];
//旋转动画
CABasicAnimation* rotationAnimation =
[CABasicAnimation animationWithKeyPath:@"transform.rotation.z"];//"z"还可以是“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);