＆QUOT;显示包内容＆QUOT; iPhone的发布版本显示为空白PNG图片？ [英] "Show Package Contents" of iPhone build release reveals blank PNGs?

问题描述

所以，我成功地完成了我的第一个iPhone发布版本，当我好奇地走到新鲜出炉的.app文件，以显示包内容，我发现所有的PNG图像包含的是空的！他们都设置为合适的分辨率，但是当我打开它们，有什么可看的，但默认的preview.app灰色。

So I successfully completed my first iPhone release build and when I curiously went to "Show Package Contents" of the freshly-baked .app file, I noticed that all the contained PNGs are blank! They are all set to the appropriate resolutions, but when I open them, there's nothing to see but the default Preview.app grey.

我试图打开其他的.app包内容（从OS X应用程序），看看他们的PNG图像是可见的，果然他们。因此，这一切如常为iPhone构建的.app还是我错过的疑难杂症？

I tried opening other .app "package contents" (from OS X apps) to see if their PNGs were visible and sure enough they were. So is this business as usual for an iPhone .app build or did I miss a gotcha?

推荐答案

构建应用程序时，X code可优化的PNG文件 - 这些文件不能在preVIEW应用程序中查看。请参阅的COM preSS PNG文件在你的目标设定（在包装块） - 如果它被设置为YES，那么这样的话

XCode may optimize pngs when building application - those files cannot be viewed in Preview app. See "Compress PNG Files" setting in your target (in Packaging block) - if it is set to YES then that's the case.

P.S。你可以使用pngcrush工具恢复这种优化，请参阅命令行命令为的这里

P.S. you can revert this optimization using pngcrush tool, see command-line command for that here

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