在iOS 7和Objective c中使用UIColor类别

Question

我有一个UIColor + MyLayout.m文件,例如:

@implementation UIColor (Layout)

- (UIColor *) textBackground
{
    UIColor *lightGreen = [UIColor colorWithRed:0.0f/255.0f green:178.0f/255.0f     blue:238.0f/255.0f alpha:1.0f];

    return lightGreen;
}

@end

我已将.h文件添加到我的viewcontroller.m中,但是如何将其调用为UIColor？

UIColor*myColor =？

Answer 1

如果您执行以下操作会更好:

@implementation UIColor (Layout)

+ (UIColor *) textBackground {
    UIColor *lightGreen = [UIColor colorWithRed:0.0f/255.0f green:178.0f/255.0f        blue:238.0f/255.0f alpha:1.0f];
    return lightGreen;
}

@end

然后打电话给它 UIColor *myColor = [UIColor textBackground];