iOS常用的几个动画代码

使用前

    需引入QuartzCore.framework, 并在相关文件中加入 #import "QuartzCore/QuartzCore.h"

 
定义

     shakeFeedbackOverlay为UIImageView

 
设置

     self.shakeFeedbackOverlay.alpha = 0.0;

     self.shakeFeedbackOverlay.layer.cornerRadius = 10.0; //设置圆角半径

 
1、图像左右抖动

CABasicAnimation* shake = [CABasicAnimation animationWithKeyPath:@"transform.rotation.z"];

shake.fromValue = [NSNumber numberWithFloat:-M_PI/32];

shake.toValue = [NSNumber numberWithFloat:+M_PI/32];

shake.duration = 0.1;

shake.autoreverses = YES; //是否重复

shake.repeatCount = 4;

[self.shakeFeedbackOverlay.layer addAnimation:shake forKey:@"shakeAnimation"];

self.shakeFeedbackOverlay.alpha = 1.0;

[UIView animateWithDuration:2.0 delay:0.0 options:UIViewAnimationOptionCurveEaseIn | UIViewAnimationOptionAllowUserInteraction animations:^{ self.shakeFeedbackOverlay.alpha = 0.0; //透明度变0则消失 } completion:nil];

 
2、图像顺时针旋转

CABasicAnimation* shake = [CABasicAnimation animationWithKeyPath:@"transform.rotation.z"];

shake.fromValue = [NSNumber numberWithFloat:0];

shake.toValue = [NSNumber numberWithFloat:2*M_PI];

shake.duration = 0.8; shake.autoreverses = NO;

shake.repeatCount = 1;

[self.shakeFeedbackOverlay.layer addAnimation:shake forKey:@"shakeAnimation"];

self.shakeFeedbackOverlay.alpha = 1.0;

[UIView animateWithDuration:10.0 delay:0.0 options:UIViewAnimationOptionCurveEaseIn | UIViewAnimationOptionAllowUserInteraction animations:^{ self.shakeFeedbackOverlay.alpha = 0.0; } completion:nil];

 
3、图像关键帧动画

CAKeyframeAnimation *animation = [CAKeyframeAnimation animation];

CGMutablePathRef aPath = CGPathCreateMutable();

CGPathMoveToPoint(aPath, nil, 20, 20);

CGPathAddCurveToPoint(aPath, nil, 160, 30, 220, 220, 240, 420);

animation.path = aPath;

animation.autoreverses = YES;

animation.duration = 2;

animation.timingFunction = [CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionEaseOut];

animation.rotationMode = @"auto";

[ballView.layer addAnimation:animation forKey:@"position"];

 
4、组合动画 CAAnimationGroup

CABasicAnimation *flip = [CABasicAnimation animationWithKeyPath:@"transform.rotation.y"];

flip.toValue = [NSNumbernumberWithDouble:-M_PI];

CABasicAnimation *scale= [CABasicAnimation animationWithKeyPath:@"transform.scale"];

scale.toValue = [NSNumbernumberWithDouble:12];

scale.duration = 1.5;

scale.autoreverses = YES;

CAAnimationGroup *group = [CAAnimationGroup animation];

group.animations = [NSArray arrayWithObjects:flip, scale, nil];

group.timingFunction = [CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionEaseInEaseOut];

group.duration = 3;

group.fillMode = kCAFillModeForwards;

group.removedOnCompletion = NO;

[ballView.layer addAnimation:group forKey:@"position"];

 
5、指定时间内旋转图片
//启动定时器旋转光圈

(void)startRotate

{

self.rotateTimer = [NSTimer scheduledTimerWithTimeInterval:0.02

                                              target:self

                                            selector:@selector(rotateGraduation)

                                            userInfo:nil

                                             repeats:YES];

 
}
//关闭定时器

(void)stopTimer

{

if ([self.rotateTimerisValid])

 
{

    [self.rotateTimerinvalidate];

    self.rotateTimer = nil;

}

 
}
//旋转动画

(void)rotateGraduation

{

self.timeCount--;

if (self.timeCount == 0)

{

    [self stopTimer];

    // doSomeThing //旋转完毕 可以干点别的

    self.timeCount = 25;

}

else

{

    //计算角度 旋转

    static CGFloat radian = 150 * (M_2_PI / 360);

    CGAffineTransform transformTmp = self.lightImageView.transform;

    transformTmp = CGAffineTransformRotate(transformTmp, radian);

    self.lightImageView.transform = transformTmp;

};

 
}
调用方法
self.timeCount = 25; //动画执行25次
[self startRotate];</pre>