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- //
- // SVRadialGradientLayer.m
- // SVProgressHUD, https://github.com/SVProgressHUD/SVProgressHUD
- //
- // Copyright (c) 2014-2018 Tobias Tiemerding. All rights reserved.
- //
- #import "SVRadialGradientLayer.h"
- @implementation SVRadialGradientLayer
- - (void)drawInContext:(CGContextRef)context {
- size_t locationsCount = 2;
- CGFloat locations[2] = {0.0f, 1.0f};
- CGFloat colors[8] = {0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.75f};
- CGColorSpaceRef colorSpace = CGColorSpaceCreateDeviceRGB();
- CGGradientRef gradient = CGGradientCreateWithColorComponents(colorSpace, colors, locations, locationsCount);
- CGColorSpaceRelease(colorSpace);
- float radius = MIN(self.bounds.size.width , self.bounds.size.height);
- CGContextDrawRadialGradient (context, gradient, self.gradientCenter, 0, self.gradientCenter, radius, kCGGradientDrawsAfterEndLocation);
- CGGradientRelease(gradient);
- }
- @end
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