存储数十张甚至数百张png图像的最佳实践是什么,这些图像应该捆绑在iphone应用程序中?
是否有方法使用UIImagePickerController访问它们,或者我必须自己创建其他方法来访问它们?
此外,捆绑它们的最佳实践是什么?应用内捆绑还是让应用从服务器下载?
存储数十张甚至数百张png图像的最佳实践是什么,这些图像应该捆绑在iphone应用程序中?
是否有方法使用UIImagePickerController访问它们,或者我必须自己创建其他方法来访问它们?
此外,捆绑它们的最佳实践是什么?应用内捆绑还是让应用从服务器下载?
如果你需要离线使用这些图像,我会把它放在你的应用程序包中。我会创建一个物理文件夹并将其拖动到Xcode项目中,然后选择创建文件夹引用,该引用应显示为蓝色文件夹图标。把你所有的png文件放在那个文件夹里。
要获取该文件夹中所有文件的列表,请执行以下操作:
NSString *filesPath = [[[NSBundle mainBundle] resourcePath] stringByAppendingPathComponent:@"pngfolder"]; // where pngfolder is the folder as described above.
NSArray *filesList = [[NSFileManager defaultManager] contentsOfDirectoryAtPath:filesPath error:nil];
要读取索引i处的单个图像文件,例如上面的filesList数组中的文件:
NSString *sourcePath = [[[NSBundle mainBundle] resourcePath] stringByAppendingPathComponent:[filesList objectAtIndex:i]];
UIImage *img = [[UIImage alloc]initWithContentsOfFile:sourcePath];
所有大公司做的最好的方法是。。将所有小图像转换为单个大图像,然后在客户端渲染您想要的任何图像。
你可以找到很多很好的例子。。我觉得这很有趣http://yuilibrary.com/yui/docs/dd/photo-browser.html#slider-以及样式表。。查看附带yui捆绑包的js文件,以及捆绑为单个图像的所有图像
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