iOS CALayer 抖動效果

標籤：

方式一

 1 - (void)shakeAnimationForView:(UIView *)view 2 { 3     CALayer *layer = [view layer]; 4     CAKeyframeAnimation *animation = [CAKeyframeAnimation animation]; 5     animation.keyPath = @"position.x"; 6     animation.values = @[ @0, @5, @10, @-10, @10, @5, @0 ]; 7     animation.keyTimes = @[ @0, @(1 / 6.0),@(2 / 6.0), @(3 / 6.0), @(5 / 6.0),@(2 / 6.0), @1 ]; 8     animation.duration = 0.4; 9     10     animation.additive = YES;11     12     [layer addAnimation:animation forKey:@"shake"];13 }

 

方式二

 1 - (void)shakeAnimationForView:(UIView *) view 2  3 {    4     //擷取到當前View的layer 5     CALayer *viewLayer = view.layer; 6      7     //擷取當前View的位置 8     CGPoint position = viewLayer.position; 9 10     //移動的兩個終點位置11     CGFloat scale = 5.0f;12     CGPoint beginPosition = CGPointMake(position.x + scale, position.y);13     CGPoint endPosition = CGPointMake(position.x - scale, position.y);14     15     //設定動畫16     CABasicAnimation *animation = [CABasicAnimation animationWithKeyPath:@"position"];17     18     //設定運動形式19     [animation setTimingFunction:[CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionDefault]];20     21     //設定開始位置22     [animation setFromValue:[NSValue valueWithCGPoint:beginPosition]];23     24     //設定結束位置25     [animation setToValue:[NSValue valueWithCGPoint:endPosition]];26     27     //設定自動反轉28     [animation setAutoreverses:YES];29     30     //設定時間31     [animation setDuration:0.1];32     33     //設定次數34     [animation setRepeatCount:3];35     36     //添加上動畫37     [viewLayer addAnimation:animation forKey:nil];38     39 }

 

iOS CALayer 抖動效果