UIView 添加闪烁的渐变光

时间：2022-04-29 00:50:02
CGRect gradientRect=CGRectMake(- imageView3.bounds.size.width*1.5, ,  * imageView3.bounds.size.width, imageView3.bounds.size.height);

    CAGradientLayer *gradientLayer = [CAGradientLayer layer];

    gradientLayer.frame =gradientRect;

    gradientLayer.colors = @[(id)hexColor(bb975e).CGColor,(id)[UIColor whiteColor].CGColor,(id)hexColor(bb975e).CGColor];

    gradientLayer.locations = @[@(0.25),@(0.5),@(0.75)];

    gradientLayer.startPoint = CGPointMake(, 0.5);

    gradientLayer.endPoint = CGPointMake(, 0.5);

    gradientLayer.position = CGPointMake(imageView3.bounds.size.width*0.5, imageView3.bounds.size.height/2.0);

    [imageView3.layer addSublayer:gradientLayer];

    CALayer *maskLayer = [CALayer layer];

    maskLayer.frame =CGRectOffset(imageView3.bounds, imageView3.bounds.size.width*1.5, );

    maskLayer.contents = (__bridge id)([UIImage imageNamed:@"launchImage3"].CGImage);

    gradientLayer.mask = maskLayer;

    CABasicAnimation* fadeAnim = [CABasicAnimation animationWithKeyPath:@"locations"];

    fadeAnim.fromValue = @[@(0.0),@(0.0),@(0.25)];

    fadeAnim.toValue = @[@(0.75),@(1.0),@(1.0)];

    fadeAnim.duration=;

    fadeAnim.repeatCount = CGFLOAT_MAX;

    [gradientLayer addAnimation:fadeAnim forKey:nil];

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