Flutter调试Apk反编译以获得源代码 [英] Flutter debug Apk decompile to get source code

问题描述

由于驱动器损坏，我丢失了flutter应用程序的源代码，但是我的debug.apk在我的Android手机中. 谁能告诉我如何反编译Flutter apk以获得源代码. 我尝试使用反编译器对其进行反编译，但未提供我的源代码 因为flutter的源代码是dart语言.

I have lost the source code of my flutter application due to drive corruption, but I have my debug.apk in my android phone. Can anyone please tell me how to decompile the Flutter apk to get source code. I have tried decompiling it using decompilers but it is not giving my source code as the flutter source code is in dart language.

推荐答案

如果您的debug.apk处于调试模式，则可以使用apktool来提取apk的组件(我正在使用提取单词，因为apk是zip文件).

If your debug.apk is in debug mode then you can use apktool in order to extract the components of the apk (I'm using the word extracting since apk is a zip file).

Flutter在调试模式下，将源代码(带有注释！)保留在文件kernel_blob.bin中.因此，使用以下命令应该可以帮助您将代码提取到文件中:

Flutter, in debug mode, keeps the source code (with comments!) in the file kernel_blob.bin. Thus, using the following command should help you extract the code into a file:

strings /path/to/extracted/apk/assets/flutter_assets/kernel_blob.bin > extracted_code.dart

请注意-您需要清除无关/垃圾字符串中的"extracted_code.dart".

Please, pay attention - You'll need to clean 'extracted_code.dart', from irrelevant/garbage strings.

尝试在"extracted_code.dart"中搜索诸如"dart"，"import"，"void"和其他关键字之类的字符串，它将帮助您找到代码本身.

Try to search strings like "dart", "import", "void" and other keywords in 'extracted_code.dart', it will help you find the code itself.

这是我的Ubuntu的一个示例:

Here's an example from my Ubuntu:

如果apk是在发布"模式下编译的，则提取代码将更加困难，因为代码已编译到isolate_snapshot_instr文件中，该文件不是原始的程序集，并且仅使用Flutter引擎进行反序列化.运行.您可以在此处了解更多信息

If the apk is compiled in "release" mode, extracting the code will be much harder, since the code is compiled into isolate_snapshot_instr file, which is not a raw arm assembly, and is only deserialized using the Flutter engine in run-time. You can read more about it here

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