Decompile and Compile apps using Apktool in 5 Simple Steps

ORIGINAL THREAD CLICK HERE

What you need before you learn how to use apktool -

A computer running windows

A working internet connection for downloading the following -

Basic command prompt commands and path knowledge

A good linux format code editing program like NotePad ++ [Get it from HERE]

STEP 1 - Install JAVA - Go HERE

Just go to the above website and download java SDK and JRE.

We mostly use only SDK libraries but JRE is required when you want to modify games or apps like whatsapp. So its best if we install both.

install them in any directory for example C:\ drive and you are good to go to next step 2.

STEP 2 - Install Android SDK- Go HERE

Just go to the above website and download the SDK.
Install it in an easy path. For example - C:\android
The short path will be useful when you are using adb for logcat purposes, since typing in a long path every-time you want to access the adb executable file is painful.
So once you installed the SDK move on to next step 3

STEP 3 - Download Apktool - Go HERE

For downloading apktool related files, you need to go HERE
Download latest apktool version, currenlty 1.5.2
Download the batch file and aapt.exe
Create a folder anywhere in the pc and put all the apktool.jar, aapt.exe and the batch script in that folder.
This will be the operating folder for you now.
Next move to next step 4

STEP 4 - Using apktool for decompiling anything

Open command prompt
navigate to the folder where you placed apktool.jar, batch script and the aapt.exe
For this guide i am using a simple framework-res.apk for reference.
Once you are in the folder via cmd prompt, you need to install the file using the " IF " command

type the following command -

Code:

apktool if name-of-the-app .apk

Code:

apktool if framework-res.apk

Once the app is installed you need to decompile it.
For decompiling use the command "d". The "d" stands for decompile.
Code:
```
apktool d name-of-the-app .apk
```
For example -
Code:
```
apktool d framework-res.apk
```
After the app is correctly decompiled, a new folder will be created in the same folder where you placed your app. This contains all the xml's and smali files which can be edited for different mod's.
Then after you are finished with your modding, you need to recompile your app for using it.
To recompile the app use the following command " B ". The "b" simply means recompile.
Code:
```
apktool b name-of-the-app-folder
```
NOTE - While recompiling the app, you just need to type the name of the folder the app's files contains.
For example -
Code:
```
apktool b framework-res
```
framework-res is the name of the folder
The final modded app will be in the dist folder located inside the original app folder created by apktool.
Congrats ! If everything went well, you successfully created a modified app !
Now the most important step is below in step 5

STEP 5 - Signing the apk

then type the following command -

Code:

java -jar signapk.jar certificate.pem key.pk8 path-of-the-folder-contaning-the-apk .apk path-of-the-new-signed-apk .apk

Code:

java -jar signapk.jar certificate.pem key.pk8 framework-res.apk framework-res-signed.apk

ATTACHED FILES

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