是什么导致IOS应用程序中的资产规模增加，我如何缩小呢? [英] What contributes to the size of assets in an IOS App and how can I shrink this?
问题描述
我有一个Xcode 6内置的iOS应用程序，它使用资产目录存储71MB的图像.我在资产目录中仅包含@ 3x图像，以尝试将应用程序的大小保持在100MB以下. @ 3x规则的唯一例外是，我为AppIcon组添加了@ 1x和@ 2x图像.
I have an iOS app built in Xcode 6 which uses an Asset Catalog to store 71MB of images. I have only includes the @3x images in my Asset Catalog to try and keep the size of the app under 100MB. The only exception to the @3x rule is that I have included @1x and @2x images for the AppIcon group.
所有图像均为.JPG文件，但AppIcon文件为.png文件.
All images are .JPG files with the exception of the AppIcon files which are .png files.
当我存档并创建.IPA文件时，IPA的大小为117MB.打开并查看.IPA中Asset.car文件的大小时，我看到它的大小为130MB.将此与项目中的资产目录(71MB)对比.我要指出的是，显然不是其他已编译的代码占用了40 MB.
When I archive and create an .IPA file, the size of the IPA is 117MB. When I open and look at the size of the Asset.car file within the .IPA I see that it is 130MB. Contrast this to the Asset Catalog in the project which is 71MB. I am pointing this out to be clear that it's not other compiled code that is taking up 40 MB.
我想存档此应用程序，以便在可能的情况下将文件大小保持在80-90-MB以下.考虑到70MB的资产，IPA应该保持在100MB以下，但是我想知道如何完成此工作，或者我可能需要采取或采取其他步骤才能查看为什么我要在IPA中获取130MB的资产文件来获取70MB的图像
I would like to archive this app so that the file size stays under 80-90-MB if possible. The IPA should stay under 100MB given the 70MB of assets but I would like to know how to accomplish this or what other steps I might need to take or review to see why I am getting 130MB of an asset file in the IPA for 70MB of images.
推荐答案
The article at Assets.car is 6 times larger than actual Images.xcassets folder when archived seems to be the answer.
我的资产目录"中的整个JPEG集合都转换为明显更大的PNG.我将除了AppIcons和LaunchImage之外的所有内容都从Asset Catalog转换为普通文件夹.因此，那时我有一个充满JPEG的文件夹和一个小的资产目录.
The entire set of JPEGs in my Asset Catalog is converted to PNG's which are substantially larger. I converted everything except for my AppIcons and LaunchImage out of the Asset Catalog and into a normal folder. So at that point i had a folder full of JPEGs and a small Asset Catalog.
当我创建一个档案时，它的大小为67 MB，如此之小！
When I created an archive it was 67 MB so significantly smaller!
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