iphone ios7分段UISegmentedControl仅改变边框颜色 [英] iphone ios7 segmented UISegmentedControl change only border color

问题描述

环顾四周，试图改变边框颜色（使用不同的文字颜色），没有运气。可以更改色调，但同时更改文本和边框。

Been looking around and trying to change just the border color (with a different text color) with no luck. Can change the tint, but changes both the text and border.

推荐答案

您可以使用UIAppearance代理设置标题文本属性但保留tintColor为边框。
类似于：

You can use UIAppearance proxy to set title text attributes but preserve tintColor for borders. Something like:

 [[UISegmentedControl appearance] setTitleTextAttributes:@{ 
    NSForegroundColorAttributeName : [UIColor redColor] 
 } forState:UIControlStateNormal];

修改：

要着色图像，你可以在UImage的类别中使用类似的东西：

To tint images, you can use something like this in category on UImage:

- (instancetype)tintedImageWithColor:(UIColor *)tintColor {
    UIGraphicsBeginImageContextWithOptions(self.size, NO, 0.0);
    CGContextRef context = UIGraphicsGetCurrentContext();

    CGRect rect = (CGRect){ CGPointZero, self.size };
    CGContextSetBlendMode(context, kCGBlendModeNormal);
    [self drawInRect:rect];

    CGContextSetBlendMode(context, kCGBlendModeSourceIn);
    [tintColor setFill];
    CGContextFillRect(context, rect);

    UIImage *image  = UIGraphicsGetImageFromCurrentImageContext();
    UIGraphicsEndImageContext();
    return image;
}

这篇关于iphone ios7分段UISegmentedControl仅改变边框颜色的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！