//设置渐变颜色 CAGradientLayer *gradientLayer = [CAGradientLayer layer]; gradientLayer.frame = view.bounds; [gradientLayer setColors:[NSArray arrayWithObjects:(id)[RGB(139, 48, 164) CGColor],(id)[RGB(61, 189, 255) CGColor],(id)[RGB(37, 182, 82) CGColor], nil nil]]; [view.layer addSublayer:gradientLayer];
UIView * myView = [[UIView alloc] initWithFrame:CGRectMake(50, 50, 200, 200)]; [self.view addSubview:myView]; CAGradientLayer * gradientLayer = [CAGradientLayer layer]; gradientLayer.frame = myView.bounds; // 设置渐变颜色数组 gradientLayer.colors = @[(__bridge id)[UIColor redColor].CGColor,(__bridge id)[UIColor greenColor].CGColor,(__bridge id)[UIColor blueColor].CGColor]; // 渐变颜色的区间分布 gradientLayer.locations = @[@0.25,@0.5,@0.75]; // 起始位置 gradientLayer.startPoint = CGPointMake(0, 0); // 结束位置 gradientLayer.endPoint = CGPointMake(0, 1); [myView.layer addSublayer:gradientLayer];
#define FHCColorFromRGB(rgbValue) [UIColor colorWithRed:((float)((rgbValue & 0xFF0000) >> 16))/255.0 green:((float)((rgbValue & 0xFF00) >> 8))/255.0 blue:((float)(rgbValue & 0xFF))/255.0 alpha:1.0] UIView * myView = [[UIView alloc] initWithFrame:CGRectMake(50, 50, 200, 200)]; [self.view addSubview:myView]; CAGradientLayer * gradientLayer = [CAGradientLayer layer]; gradientLayer.frame = myView.bounds; gradientLayer = [CAGradientLayer layer]; gradientLayer.colors = @[(__bridge id)FHCColorFromRGB(0x01b6ff).CGColor, (__bridge id)FHCColorFromRGB(0x4392f6).CGColor]; gradientLayer.locations = @[@0.1, @1.0]; gradientLayer.startPoint = CGPointMake(0, 0); gradientLayer.endPoint = CGPointMake(1.0, 0); [myView.layer addSublayer:gradientLayer];
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