问题
I have lost 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 .
回答1:
If your debug.apk is in debug mode, than 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, 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
Please, pay attention - You'll need to clean 'extracted_code.dart', from irrelevant/garbage strings.
Try to search strings like "dart", "import", "void" and other key words in 'extracted_code.dart', it will help you find the code itself.
Here's an example from my Ubuntu:
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
来源：https://stackoverflow.com/questions/53666487/flutter-debug-apk-decompile-to-get-source-code