iOS中资源文件的”另类“处理方式
<div id="cnblogs_post_body">早上研究了一下SMCalloutView，发现作者在代码中直接将图片作成了字符串放在了源代码文件中。 这样做的好处是程序依赖的资源文件同code直接放置在了一起，使用的时候只要把源代码拷贝进去就可以了。 要折腾倒也挺简单的：先将图片资源转成Base64字符串，再将字符串声明成常量。使用的时候使用NSData转换一下，再转成UIImage就可以使用了：<div class="cnblogs_code">+ (UIImage *)embeddedImageNamed:(NSString *)name { if (.scale == 2) name = @"$2x"]; SEL selector = NSSelectorFromString(name); if (![(id)self respondsToSelector:selector]) { NSLog(@"Could not find an embedded image. Ensure that you've added a category method to UIImage named +%@", name); return nil; } // We need to hush the compiler here - but we know what we're doing! #pragma clang diagnostic push #pragma clang diagnostic ignored "-Warc-performSelector-leaks" NSString *base64String = [(id)self performSelector:selector]; #pragma clang diagnostic pop UIImage *rawImage = ]; return .scale orientation:UIImageOrientationUp];}
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