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这期内容当中小编将会给大家带来有关怎么在iOS中实现一个图片抖动效果，文章内容丰富且以专业的角度为大家分析和叙述，阅读完这篇文章希望大家可以有所收获。
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#import "ViewController.h"
#define angle2Rad(angle) ((angle) / 180.0 *M_PI)
@interface ViewController ()
@property (weak, nonatomic) IBOutlet UIImageView *imageV;
@end
@implementation ViewController
- (void)viewDidLoad {
[super viewDidLoad];
self.imageV.userInteractionEnabled = YES;
//添加长按手势
UILongPressGestureRecognizer *longPress = [[UILongPressGestureRecognizer alloc] initWithTarget:self action:@selector(longPress:)];
[self.imageV addGestureRecognizer:longPress];
}
- (void)longPress:(UILongPressGestureRecognizer *)longPress{
//创建动画对象
CAKeyframeAnimation *anim = [CAKeyframeAnimation animation];
anim.keyPath = @"transform.rotation";
anim.values = @[@(angle2Rad(-5)),@(angle2Rad(5))];
anim.repeatCount = MAXFLOAT;
// anim.duration = 1;
anim.autoreverses = YES;
[self.imageV.layer addAnimation:anim forKey:nil];
}
- (void)didReceiveMemoryWarning {
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
}
@end小编再给大家补充一段iOS UIView视图抖动效果的实现代码：
/**
* 抖动效果
*
* @param view 要抖动的view
*/
- (void)shakeAnimationForView:(UIView *) view {
CALayer *viewLayer = view.layer;
CGPoint position = viewLayer.position;
CGPoint x = CGPointMake(position.x + 1, position.y);
CGPoint y = CGPointMake(position.x - 1, position.y);
CABasicAnimation *animation = [CABasicAnimation animationWithKeyPath:@"position"];
[animation setTimingFunction:[CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionDefault]];
[animation setFromValue:[NSValue valueWithCGPoint:x]];
[animation setToValue:[NSValue valueWithCGPoint:y]];
[animation setAutoreverses:YES];
[animation setDuration:.06];
[animation setRepeatCount:3];
[viewLayer addAnimation:animation forKey:nil];
}上述就是小编为大家分享的怎么在iOS中实现一个图片抖动效果了，如果刚好有类似的疑惑，不妨参照上述分析进行理解。如果想知道更多相关知识，欢迎关注创新互联行业资讯频道。