动画代码片段

最新推荐文章于 2021-06-04 22:38:59 发布

原创最新推荐文章于 2021-06-04 22:38:59 发布 · 424 阅读

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CC 4.0 BY-SA版权

本文介绍了iOS开发中实现360度旋转动画、放大缩小动画、左右抖动动画的方法，以及如何通过代码控制这些动画的播放与停止，提供丰富的视图交互体验。

//360度转动动画

-(void)rotate360DegreeWithImageView:(UIView *)view{

CABasicAnimation *animation = [CABasicAnimation

animationWithKeyPath: @"transform" ];

//围绕Z轴旋转，垂直与屏幕

animation.fromValue = [NSValue valueWithCATransform3D:

CATransform3DMakeRotation(M_PI,0.0, 0.0, 1.0) ];

animation.toValue = [NSValuevalueWithCATransform3D:CATransform3DIdentity];

animation.duration =0.3;

//旋转效果累计，先转180度，接着再旋转180度，从而实现360旋转

animation.cumulative =YES;

animation.repeatCount =1000;

[view.layeraddAnimation:animation forKey:nil];

}

//停止转动

-(void)stopAnimate:(UIView *)view

{

[view.layerremoveAllAnimations];

}

//放大缩小的动画

- (void) shakeToShow:(UIView*)aView{

CAKeyframeAnimation* animation = [CAKeyframeAnimationanimationWithKeyPath:@"transform"];

animation.duration =0.5;

NSMutableArray *values = [NSMutableArrayarray];

[values addObject:[NSValuevalueWithCATransform3D:CATransform3DMakeScale(0.1,0.1, 1.0)]];

[values addObject:[NSValuevalueWithCATransform3D:CATransform3DMakeScale(1.05,1.05, 1.0)]];

[values addObject:[NSValuevalueWithCATransform3D:CATransform3DMakeScale(0.95,0.95, 1.0)]];

[values addObject:[NSValuevalueWithCATransform3D:CATransform3DMakeScale(1.0,1.0, 1.0)]];

animation.values = values;

[aView.layeraddAnimation:animation forKey:nil];

}

//左右抖动动画

-(void)lockAnimationForView:(UIView*)view

{

CALayer *layer = [view layer];

CGPoint point = [layer position];

CGPoint y = CGPointMake(point.x-3.5, point.y);

CGPoint x = CGPointMake(point.x+3.5, point.y);

CABasicAnimation * animation = [CABasicAnimationanimationWithKeyPath:@"position"];

[animation setTimingFunction:[CAMediaTimingFunction

functionWithName:kCAMediaTimingFunctionEaseInEaseOut]];

[animation setFromValue:[NSValuevalueWithCGPoint:x]];

[animation setToValue:[NSValuevalueWithCGPoint:y]];

[animationsetAutoreverses:YES];

[animationsetDuration:0.08];

[animationsetRepeatCount:2];

[layeraddAnimation:animation forKey:nil];

}

//
 视图转动动画

+
 (void)shakeView:(UIView

*)view 
duration:(CGFloat)fDuration

{

    if

(view && (fDuration >= 0.1f))

    {

        CABasicAnimation*
 shake = [CABasicAnimation

animationWithKeyPath:@"transform.rotation.z"];

        //设置抖动幅度

        shake.fromValue

= [NSNumber

numberWithFloat:-0.3];

        shake.toValue

= [NSNumber

numberWithFloat:+0.3];

        shake.duration

= 0.1f;

        shake.repeatCount

= fDuration/4/0.1f;

        shake.autoreverses

= YES;

        [view.layer

addAnimation:shake

forKey:@"shakeView"];

    }else{}

}

CAKeyframeAnimation*
 anim=[CAKeyframeAnimation

animation];

        anim.keyPath=@"transform.rotation";

        anim.values=@[@(angelToRandian(-7)),@(angelToRandian(7)),@(angelToRandian(-7))];

        anim.repeatCount=MAXFLOAT;

        anim.duration=0.2;

        [self.imageView.layer

addAnimation:anim

forKey:nil];