blocks|key|1608935|text|是。在“音乐/iTunes/移动应用程序”文件夹中找到应用程序.ipa文件。在某处复制一份，并将其重命名为.zip文件。解压缩该文件。在Payload文件夹中，右键单击.app文件并选择“显示包内容”。现在，您可以访问该应用程序的所有资源。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1608936|PNG文件将编码为iPhone，并需要转换为可在您的Mac/PC上查看。有几个实用程序可以做到这一点。|1608937|我已经使用atPeek自动化了整个过程，但它不是一个免费的应用程序(我想它是5美元)：http://www.atpurpose.com/atPeek/|offset|length|1608938|entityMap|0|LINK|mutability|MUTABLE|url|http://www.atpurpose.com/atPeek/^0|0|0|17|W|0|0^^$0|@$1|2|3|4|5|6|7|P|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|Q|8|@]|9|@]|A|$]]|$1|D|3|E|5|6|7|R|8|@]|9|@$F|S|G|T|1|U]]|A|$]]|$1|H|3|-4|5|6|7|V|8|@]|9|@]|A|$]]]|I|$J|$5|K|L|M|A|$N|O]]]]

Yes. Find the app .ipa file in your "Music/iTunes/Mobile Applications" folder. Make a copy somewhere and rename it to a .zip file. Unzip the file. In the Payload folder, right click on the .app file and select "Show Package Contents." You can now access all of the app's resources.

PNG files will be encoded for the iPhone and need to be converted to be viewable on your Mac/PC. There are several utilities for this. 

I've used atPeek to automate this entire process, but it isn't a free application (I think it's $5): <a href="http://www.atpurpose.com/atPeek/" rel="noreferrer">http://www.atpurpose.com/atPeek/</a>

blocks|key|1607041|text|从PNGSDK3.2(及更高版本)开始，您可以使用pngcrush来撤消iOS+iOS优化。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|1607042|使用以下命令：|1607043|$+/Developer/Platforms/iPhoneOS.platform/Developer/usr/bin/pngcrush+-revert-iphone-optimizations+"~/Path/To/The/Apps.app/Image.png"+"~/Path/To/Place/The/Reverted/Image.png"|code-block|syntax|javascript|1607044|有关完整信息，请参阅http://developer.apple.com/library/ios/#qa/qa1681/_index.html。|1607045|可从以下网址免费下载iOS软件开发工具包：http://developer.apple.com/devcenter/ios/index.action|1607046|您可以从以下网址下载pngcrush，而无需下载iOS+SDK：http://pmt.sourceforge.net/pngcrush/|1607047|entityMap|0|LINK|mutability|MUTABLE|url|http://developer.apple.com/library/ios/#qa/qa1681/_index.html|1|http://developer.apple.com/devcenter/ios/index.action|2|http://pmt.sourceforge.net/pngcrush/^0|P|8|0|0|0|A|1P|0|0|L|1H|1|0|A|8|W|10|2|0^^$0|@$1|2|3|4|5|6|7|14|8|@$9|15|A|16|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|17|8|@]|D|@]|E|$]]|$1|H|3|I|5|J|7|18|8|@]|D|@]|E|$K|L]]|$1|M|3|N|5|6|7|19|8|@]|D|@$9|1A|A|1B|1|1C]]|E|$]]|$1|O|3|P|5|6|7|1D|8|@]|D|@$9|1E|A|1F|1|1G]]|E|$]]|$1|Q|3|R|5|6|7|1H|8|@$9|1I|A|1J|B|C]]|D|@$9|1K|A|1L|1|1M]]|E|$]]|$1|S|3|-4|5|6|7|1N|8|@]|D|@]|E|$]]]|T|$U|$5|V|W|X|E|$Y|Z]]|10|$5|V|W|X|E|$Y|11]]|12|$5|V|W|X|E|$Y|13]]]]

Starting with iOS SDK 3.2 (and up) you can use <code>pngcrush</code> to undo the iOS PNG optimizations.

Use the command:

<pre><code>$ /Developer/Platforms/iPhoneOS.platform/Developer/usr/bin/pngcrush -revert-iphone-optimizations "~/Path/To/The/Apps.app/Image.png" "~/Path/To/Place/The/Reverted/Image.png"
</code></pre>

See <a href="http://developer.apple.com/library/ios/#qa/qa1681/_index.html" rel="noreferrer">http://developer.apple.com/library/ios/#qa/qa1681/_index.html</a> for complete info.

The iOS SDK is available for free download at: <a href="http://developer.apple.com/devcenter/ios/index.action" rel="noreferrer">http://developer.apple.com/devcenter/ios/index.action</a>

You can download <code>pngcrush</code> without downloading the iOS SDK from: <a href="http://pmt.sourceforge.net/pngcrush/" rel="noreferrer">http://pmt.sourceforge.net/pngcrush/</a>

blocks|key|1607063|text|在最新的xcode中，路径是：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1607064|/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/usr/bin/pngcrush|offset|length|style|CODE|1607065|..。因此，请确保在pngcrush中编辑路径。|1607066|另外，(对于not+)，如果因为文件还不是可执行文件而获得permission+denied+is，则执行chmod+%2Bx+[filename]|1607067|entityMap^0|0|0|2P|0|0|T|H|1H|J|0^^$0|@$1|2|3|4|5|6|7|N|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|O|8|@$D|P|E|Q|F|G]]|9|@]|A|$]]|$1|H|3|I|5|6|7|R|8|@]|9|@]|A|$]]|$1|J|3|K|5|6|7|S|8|@$D|T|E|U|F|G]|$D|V|E|W|F|G]]|9|@]|A|$]]|$1|L|3|-4|5|6|7|X|8|@]|9|@]|A|$]]]|M|$]]

In the latest xcode the path is:

<code>/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/usr/bin/pngcrush</code>

... so make sure you edit the path in pngcrush.

Also, (for noobs), if you get <code>permission denied</code> its because the file is not an executable yet, do <code>chmod +x [filename]</code>

blocks|key|2582422|text|Cédric+Luthi有一个很棒的github项目可以做到这一点：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2582423|https://github.com/0xced/UIKit-Artwork-Extractor|offset|length|2582424|它可以浏览和提取iOS内部图稿以及iTunes中任何ipa文件的图稿。|2582425|entityMap|0|LINK|mutability|MUTABLE|url^0|0|0|1C|0|0|0^^$0|@$1|2|3|4|5|6|7|O|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|P|8|@]|9|@$D|Q|E|R|1|S]]|A|$]]|$1|F|3|G|5|6|7|T|8|@]|9|@]|A|$]]|$1|H|3|-4|5|6|7|U|8|@]|9|@]|A|$]]]|I|$J|$5|K|L|M|A|$N|C]]]]

Well, there's a great github project by Cédric Luthi to do this:

<a href="https://github.com/0xced/UIKit-Artwork-Extractor" rel="nofollow">https://github.com/0xced/UIKit-Artwork-Extractor</a>

It can browse and extract the iOS internal artwork as well as the artwork of any ipa file in iTunes.

blocks|key|2582525|text|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2582526|提取ipa文件的内容(根据@TomSwift的回答)|unordered-list-item|2582527|我写了这个PHP+cmd行脚本，它将转换/解压缩目录中的所有图像。这是一个cmd行脚本，仅在OSX上测试。|2582528|2582529|参数：|offset|length|style|BOLD|2582530|2582531|+--(包含PNG的目录)|blockquote|2582532|2582533|--outdir+(放置转换后的PNG的目录)|2582534|--pngcrushpath+|2582535|2582536|示例用法：|2582537|2582538|+php+uncrush.php+--indir+/MyIPAs/MyApp.app/+--outdir+/MyIPAs/Converted/|2582539|2582540|2582541|脚本来源：|2582542|<?php

$args+=+getopt('',+array(
++++'indir:',
++++'outdir:',
++++'pngcrushpath::'
));


$inDir+=+@rtrim($args['indir'],+'/');
$outDir+=+@rtrim($args['outdir'],+'/');
$pngCrushPath+=+isset($args['pngcrushpath'])+?+$args['pngcrushpath']+:+'/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/usr/bin/pngcrush';

if(!is_dir($inDir)){
++++error('INPUT+DIR+IS+NOT+VALID+-+DIRECTORY+NOT+FOUND+'+.+$inDir);
}

if(!is_dir($outDir)+&&+!mkdir($outDir)){
++++error('OUTPUT+DIR+IS+NOT+VALID+-+DIRECTORY+WAS+NOT+FOUND+AND+COULD+NOT+BE+CREATED+'+.+$outDir);
}

if(!is_file($pngCrushPath)){
++++error('PNGCRUSH+BINARY+NOT+FOUND');
}

$pngs+=+glob($inDir+.+'/*.png');

foreach($pngs+as+$png){
++++msg('CONVERTING+-+'+.+$png);
++++convert($png,+$outDir+.+'/'+.+basename($png));
}

msg('DONE');
exit;


function+error($str){
++++$f+=+fopen('php://stderr',+'w');
++++fwrite($f,+$str+.+"\n");
++++fclose($f);
++++exit;
}

function+msg($str){
++++$f+=+fopen('php://stdout',+'w');
++++fwrite($f,+$str+.+"\n");
++++fclose($f);
}

function+convert($inPng,+$outPng){
++++global+$pngCrushPath;

++++exec($pngCrushPath+.+'+-revert-iphone-optimizations+-q+'+.+$inPng+.+'+'+.+$outPng);
}

?>|code-block|syntax|javascript|2582543|今天我写了这个脚本供我自己使用，我希望它对其他人有用。请随时修改和转载到其他地方，但请在此链接回此答案。|2582544|entityMap^0|0|0|0|0|0|3|0|0|1|2|0|0|0|8|0|0|E|0|0|0|5|0|0|H|7|18|8|0|0|0|0|5|0|0|0^^$0|@$1|2|3|-4|4|5|6|1E|7|@]|8|@]|9|$]]|$1|A|3|B|4|C|6|1F|7|@]|8|@]|9|$]]|$1|D|3|E|4|C|6|1G|7|@]|8|@]|9|$]]|$1|F|3|-4|4|5|6|1H|7|@]|8|@]|9|$]]|$1|G|3|H|4|5|6|1I|7|@$I|1J|J|1K|K|L]]|8|@]|9|$]]|$1|M|3|-4|4|5|6|1L|7|@]|8|@]|9|$]]|$1|N|3|O|4|P|6|1M|7|@$I|1N|J|1O|K|L]]|8|@]|9|$]]|$1|Q|3|-4|4|5|6|1P|7|@]|8|@]|9|$]]|$1|R|3|S|4|5|6|1Q|7|@$I|1R|J|1S|K|L]]|8|@]|9|$]]|$1|T|3|U|4|5|6|1T|7|@$I|1U|J|1V|K|L]]|8|@]|9|$]]|$1|V|3|-4|4|5|6|1W|7|@]|8|@]|9|$]]|$1|W|3|X|4|5|6|1X|7|@$I|1Y|J|1Z|K|L]]|8|@]|9|$]]|$1|Y|3|-4|4|5|6|20|7|@]|8|@]|9|$]]|$1|Z|3|10|4|P|6|21|7|@$I|22|J|23|K|L]|$I|24|J|25|K|L]]|8|@]|9|$]]|$1|11|3|-4|4|5|6|26|7|@]|8|@]|9|$]]|$1|12|3|-4|4|5|6|27|7|@]|8|@]|9|$]]|$1|13|3|14|4|5|6|28|7|@$I|29|J|2A|K|L]]|8|@]|9|$]]|$1|15|3|16|4|17|6|2B|7|@]|8|@]|9|$18|19]]|$1|1A|3|1B|4|5|6|2C|7|@]|8|@]|9|$]]|$1|1C|3|-4|4|5|6|2D|7|@]|8|@]|9|$]]]|1D|$]]

<ul>
<li>Extract the contents of the ipa file (as per @TomSwift's answer)</li>
<li>I wrote this PHP cmd line script that will convert/uncrush all images in a directory. It's a cmd line script and is tested on OSX only.</li>
</ul>

Arguments:

<blockquote>
 --indir (directory containing PNGs)
 
 --outdir (directory where converted PNGs will be placed)
 
 --pngcrushpath [optional] (path to pngcrush, if not specified it will default to the standard)
</blockquote>

Example Use:

<blockquote>
 php uncrush.php --indir /MyIPAs/MyApp.app/ --outdir
 /MyIPAs/Converted/
</blockquote>

Script Source:

<pre><code>&lt;?php

$args = getopt('', array(
 'indir:',
 'outdir:',
 'pngcrushpath::'
));


$inDir = @rtrim($args['indir'], '/');
$outDir = @rtrim($args['outdir'], '/');
$pngCrushPath = isset($args['pngcrushpath']) ? $args['pngcrushpath'] : '/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/usr/bin/pngcrush';

if(!is_dir($inDir)){
 error('INPUT DIR IS NOT VALID - DIRECTORY NOT FOUND ' . $inDir);
}

if(!is_dir($outDir) &amp;&amp; !mkdir($outDir)){
 error('OUTPUT DIR IS NOT VALID - DIRECTORY WAS NOT FOUND AND COULD NOT BE CREATED ' . $outDir);
}

if(!is_file($pngCrushPath)){
 error('PNGCRUSH BINARY NOT FOUND');
}

$pngs = glob($inDir . '/*.png');

foreach($pngs as $png){
 msg('CONVERTING - ' . $png);
 convert($png, $outDir . '/' . basename($png));
}

msg('DONE');
exit;


function error($str){
 $f = fopen('php://stderr', 'w');
 fwrite($f, $str . "\n");
 fclose($f);
 exit;
}

function msg($str){
 $f = fopen('php://stdout', 'w');
 fwrite($f, $str . "\n");
 fclose($f);
}

function convert($inPng, $outPng){
 global $pngCrushPath;

 exec($pngCrushPath . ' -revert-iphone-optimizations -q ' . $inPng . ' ' . $outPng);
}

?&gt;
</code></pre>

I wrote this script for my own use today, I hope it is of use to someone else. Feel free to modify and repost elsewhere, but please link back to this answer on SO.

blocks|key|1607110|text|这是一篇关于如何在shell脚本中使用pngcrush，循环和转换创建的所有图像的文章：|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|1607111|1607112|PNG+Images+-+From+AppStore+to+Local+folder|unordered-list-item|1607113|1607114|希望这能有所帮助。|1607115|entityMap|0|LINK|mutability|MUTABLE|url|http://www.albertopasca.it/whiletrue/2012/05/app-store-png-images-app-store-apps-ipa/^0|J|8|0|0|0|16|0|0|0|0^^$0|@$1|2|3|4|5|6|7|U|8|@$9|V|A|W|B|C]]|D|@]|E|$]]|$1|F|3|-4|5|6|7|X|8|@]|D|@]|E|$]]|$1|G|3|H|5|I|7|Y|8|@]|D|@$9|Z|A|10|1|11]]|E|$]]|$1|J|3|-4|5|6|7|12|8|@]|D|@]|E|$]]|$1|K|3|L|5|6|7|13|8|@]|D|@]|E|$]]|$1|M|3|-4|5|6|7|14|8|@]|D|@]|E|$]]]|N|$O|$5|P|Q|R|E|$S|T]]]]

Here an article how to use <code>pngcrush</code> in shell script, looping and converting all images founded:

<ul>
<li><a href="http://www.albertopasca.it/whiletrue/2012/05/app-store-png-images-app-store-apps-ipa/" rel="nofollow">PNG Images - From AppStore to Local folder</a></li>
</ul>

hope this helps.

blocks|key|4179739|text|我发现从iPad/iPhone应用程序中提取图片的最佳工具是从设备上直接访问图片的iFunBox+Get+it+at+http://www.i-funbox.com/|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|4179740|entityMap|0|LINK|mutability|MUTABLE|url|http://www.i-funbox.com/^0|1N|O|0|0^^$0|@$1|2|3|4|5|6|7|L|8|@]|9|@$A|M|B|N|1|O]]|C|$]]|$1|D|3|-4|5|6|7|P|8|@]|9|@]|C|$]]]|E|$F|$5|G|H|I|C|$J|K]]]]

The best tool I found to extract images from iPad/iPhone apps accessing them directly from the device is iFunBox
Get it at <a href="http://www.i-funbox.com/" rel="nofollow">http://www.i-funbox.com/</a>

is there a way to extract images from an app I downloaded?

I can do this on Android, but iPad?

ipad - extract images from application?

33 天实现自己的 AI 进化论？发文瓜分机械键盘、耳机等万元奖池！点击参加活动：<a href="https://cloud.tencent.com/developer/article/2503022" target="_blank">https://cloud.tencent.com/developer/article/2503022</a> 
 <img src="https://qcloudimg.tencent-cloud.cn/raw/01543e0407db10898a7ee9f420794432.jpg"/>

技术创作特训营有奖征文

翻译质量差，导致语言生硬或混乱。

没有提供实际的解决方法或示例。

解答不清晰，无法理解或解决问题。

页面排版不美观，阅读体验差。

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有没有办法从我下载的应用程序中提取图片？我可以在安卓上做到这一点，但是iPad？

问ipad -从应用程序中提取图像？
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