第一種：很簡單，但是隻能更改圖片中線條的顏色，不能更改填充的顏色
步驟：1 在圖片管理器中選中圖片
2:
3:在程式碼中更改uiimageView顏色：

      imgV.tintColor = [UIColor blackColor];

第二種：可以將裡面的內容的顏色為想要的顏色
1

2 在建立的類別寫如下程式碼

@interface UIImage (UIImage_Tint)

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

@end

3 在.m檔案中

 #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;
}