我目前正在将文本绘制到UIImage上,该UIImage出现在iOS地图中的AnnotationView中 - 自定义图标出现在某些长/纬度坐标处.效果很好.但是,我想用白色笔划绘制这个文本(你可以称之为大纲).
+ (UIImage*)drawText:(NSString*)string inImage:(UIImage*)image atPoint:(CGPoint)point {
UIFont *font = [UIFont boldSystemFontOfSize:12];
UIGraphicsBeginImageContext(image.size);
[image drawInRect:CGRectMake(0,0,image.size.width,image.size.height)];
CGRect rect = CGRectMake(point.x, point.y, image.size.width, image.size.height);
[[UIColor whiteColor] set];
[string drawInRect:CGRectIntegral(rect) withFont:font];
UIImage *newImage = UIGraphicsGetImageFromCurrentImageContext();
UIGraphicsEndImageContext();
return newImage;
}
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