效果:

image.png

image.png

//实现文字在上,点9图背景的AttributedString

//image = 背景图片

//text = 上面文字

//font = 文字字体

//color = 文字颜色

//space = 背景和文字的间距,背景要比文字大才好看

- (void)getImageTextWithParams:(NSDictionary *)params callBack:(void (^)(NSMutableAttributedString *imageAtbs))callBack

{

dispatch_async(dispatch_get_global_queue(0, 0), ^{

UIImage *image = params[@"image"];

image = [UIImage imageWithCGImage:image.CGImage scale:2 orientation:image.imageOrientation];

image = [image stretchableImageWithLeftCapWidth:image.size.width * 0.5 topCapHeight:0];

NSString *text = params[@"text"];

CGFloat imageToTextSpace = [params[@"space"] floatValue];

CGFloat containerHegiht = [params[@"height"] floatValue];

UIFont *textFont = params[@"font"];

UIColor *textColor = params[@"color"];

NSDictionary *textAttributedDict = @{

NSFontAttributeName: textFont,

NSForegroundColorAttributeName: textColor

};

CGSize textSize = [text sizeWithAttributes:textAttributedDict];

CGSize imageSize = CGSizeMake(textSize.width + imageToTextSpace * 2, MIN(containerHegiht, textFont.lineHeight + 4));

UIGraphicsBeginImageContextWithOptions(imageSize, NO, 0.0);

[image drawInRect:CGRectMake(0, 0, imageSize.width, imageSize.height)];

CGContextRef context = UIGraphicsGetCurrentContext();

CGContextDrawPath(context, kCGPathStroke);

[text drawInRect:CGRectMake(imageToTextSpace, (containerHegiht - textFont.lineHeight) * 0.5, textSize.width, textFont.lineHeight) withAttributes:textAttributedDict];

UIImage *contentImage = UIGraphicsGetImageFromCurrentImageContext();

UIGraphicsEndImageContext();

NSMutableAttributedString *imageAtbs = [NSMutableAttributedString yy_attachmentStringWithContent:contentImage contentMode:UIViewContentModeCenter attachmentSize:imageSize alignToFont:textFont alignment:YYTextVerticalAlignmentCenter];

dispatch_async(dispatch_get_main_queue(), ^{

if (callBack) {

callBack(imageAtbs);

}

});

});

}