iOS 修改同一套图的颜色

第一种：很简单，但是只能更改图片中线条的颜色，不能更改填充的颜色 

步骤：1 在图片管理器中选中图片 

2:

 

3:在代码中更改uiimageView颜色：

imgV.tintColor = [UIColor blackColor];

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第二种：可以将里面的内容的颜色为想要的颜色 

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2 在创建的类别写如下代码

@interface UIImage (UIImage_Tint)

- (UIImage *) imageWithTintColor:(UIColor *)tintColor;
- (UIImage *) imageWithGradientTintColor:(UIColor *)tintColor;

@end

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3 在.m文件中

#import "UIImage+UIImage_Tint.h"

@implementation UIImage (UIImage_Tint)
- (UIImage *) imageWithTintColor:(UIColor *)tintColor
{
return [self imageWithTintColor:tintColor blendMode:kCGBlendModeDestinationIn];
}

- (UIImage *) imageWithGradientTintColor:(UIColor *)tintColor
{
return [self imageWithTintColor:tintColor blendMode:kCGBlendModeOverlay];
}

- (UIImage *) imageWithTintColor:(UIColor *)tintColor blendMode:(CGBlendMode)blendMode
{
UIGraphicsBeginImageContextWithOptions(self.size, NO, 0.0f);
[tintColor setFill];
CGRect bounds = CGRectMake(0, 0, self.size.width, self.size.height);
UIRectFill(bounds);

//Draw the tinted image in context
[self drawInRect:bounds blendMode:blendMode alpha:1.0f];

if (blendMode != kCGBlendModeDestinationIn) {
[self drawInRect:bounds blendMode:kCGBlendModeDestinationIn alpha:1.0f];
}

UIImage *tintedImage = UIGraphicsGetImageFromCurrentImageContext();
UIGraphicsEndImageContext();

return tintedImage;
}

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