2017.3.8

• CATransaction+CAShapeLayer 实现直线动画
  即改变矩形layer的frame
  CATransaction:http://www.jianshu.com/p/c8ffa7ab50d1
  
  layer直线动画.gif

    [CATransaction begin];
    [CATransaction setDisableActions:NO];
    [CATransaction setAnimationTimingFunction:[CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionEaseInEaseOut]];
    [CATransaction setAnimationDuration:3];
    [_animationLayer setFrame:CGRectMake(20, 60, 300, 6)];
    [CATransaction commit];

2017.3.9

• CABasicAnimation+CALayer实现缩放动画

缩放.gif

    CABasicAnimation *animation = [CABasicAnimation animationWithKeyPath:@"transform.scale"];
    animation.fromValue = @(0.1);
    animation.toValue = @(1);
    animation.duration = 2;
    [_scaleLabel.layer addAnimation:animation forKey:nil];

• CAKeyframeAnimation+CALayer实现抖动动画
  关键帧

抖动.gif

    CAKeyframeAnimation *animation = [CAKeyframeAnimation animationWithKeyPath:@"transform"];
    animation.duration = 0.5;
    
    NSMutableArray *values = [NSMutableArray array];
    [values addObject:[NSValue valueWithCATransform3D:CATransform3DMakeScale(0.1, 0.1, 1.0)]];
    [values addObject:[NSValue valueWithCATransform3D:CATransform3DMakeScale(1.2, 1.2, 1.0)]];
    [values addObject:[NSValue valueWithCATransform3D:CATransform3DMakeScale(0.9, 0.9, 1.0)]];
    [values addObject:[NSValue valueWithCATransform3D:CATransform3DMakeScale(1.0, 1.0, 1.0)]];
    
    animation.values = values;
    [_keyframeView.layer addAnimation:animation forKey:nil];

无量何质

2017.3.13

• options：UIViewAnimationOptionRepeat实现重复动画
  仿扫码框动画
  
  重复动画.gif

[UIView animateWithDuration:1.5f delay:0 options:UIViewAnimationOptionRepeat animations:^{
        CGRect rect = _saomatiao.frame;
        rect.origin.y = 90;
        [_saomatiao setFrame:rect];
    } completion:^(BOOL finished) {
        CGRect rect = _saomatiao.frame;
        rect.origin.y = 60;
        [_saomatiao setFrame:rect];
    }];