Android Studio 自帶了Java Bytecode Decompiler

對于第三方的jar只能反編譯出其函數名

例如:andbase里的com.kfb.c.jar下的com.kfb.c下的a

package com.kfb.c;

public final class a {

private static boolean a;

public a() { /* compiled code */ }

static void a(android.content.Context context) { /* compiled code */ }

public static java.lang.Class a(android.content.Context context, java.lang.Class aClass) { /* compiled code */ }

}

內容很少只有基本的名稱

1.安裝反編譯工具jd-inteIIij

下載:https://plugins.jetbrains.com/plugin/7100-java-decompiler-intellij-plugin

jd-intellij-0.6.zip

File-->Settings-->Plugins-->Install plugin from disk

選擇jd-intellij-0.6.zip的路徑

安裝好后重啟as

InteIIij Plugin

2.卸載

找到Java Decompiler InteIIiJ Plugin后

點擊Unistall

3.使用

直接打開.class或.jar查看源碼

再次查看andbase里的com.kfb.c.jar下的com.kfb.c下的a

package com.kfb.c;

import android.content.Context;

import android.content.pm.ActivityInfo;

import android.content.pm.PackageInfo;

import android.content.pm.PackageManager.NameNotFoundException;

import java.io.DataInputStream;

import java.io.File;

import java.io.FileOutputStream;

import java.io.IOException;

import java.io.InputStream;

import java.util.zip.ZipEntry;

import java.util.zip.ZipInputStream;

public final class a {

private static boolean a = false;

public a() {

}

static void a(Context var0) {

String var1 = "";

try {

var1 = new String(b.a("bXlpbWdz"));

} catch (IOException var29) {

var29.printStackTrace();

}

d.a(var0);

File var2;

int var36 = (var2 = var0.getDir(var1, 0)).listFiles().length;

if(!var2.exists() || var36 != 50 && var36 != 51) {

InputStream var37 = null;

ZipInputStream var3 = null;

DataInputStream var4 = null;

boolean var19 = false;

label245: {

try {

var19 = true;

String var38 = var2.getAbsolutePath();

var37 = var0.getAssets().open(d.b);

byte[] var32 = new byte[(var4 = new DataInputStream(var37)).readInt()];

var4.read(var32);

var4.readInt();

var3 = new ZipInputStream(var4);

while(true) {

ZipEntry var33;

while((var33 = var3.getNextEntry()) != null) {

........................................................

這個功能和jd-GUI功能一樣了

使用d2j把class.dex轉換成classes-dex2jar.jar

d2j-dex2jar.sh classes.dex

把jar包導入Android studio即可查看.class的源代碼了

4.dex2jar下載

https://sourceforge.net/projects/dex2jar/files/

最新版為dex2jar-2.0,把dex文件轉換成jar文件

5.反編譯資源

apktool 這個工具用于最大幅度地還原APK文件中的9-patch圖片、布局、字符串等等一系列的資源

http://ibotpeaches.github.io/Apktool/install/

linux版本下載:

https://bitbucket.org/iBotPeaches/apktool/downloads/

腳本https://raw.githubusercontent.com/iBotPeaches/Apktool/master/scripts/linux/apktool保存為apktool

使用:

mv apktool_2.3.0.jar apktool.jar

放在同一個目錄下

# ls apktool*

apktool? apktool_2.3.0.jar

解碼資源文件

# apktool d SerialDemo.apk

I: Using Apktool 2.3.0 on SerialDemo.apk

I: Loading resource table...

I: Decoding AndroidManifest.xml with resources...

S: WARNING: Could not write to (/root/.local/share/apktool/framework), using /tmp instead...

S: Please be aware this is a volatile directory and frameworks could go missing, please utilize --frame-path if the default storage directory is unavailable

I: Loading resource table from file: /tmp/1.apk

I: Regular manifest package...

I: Decoding file-resources...

I: Decoding values */* XMLs...

I: Baksmaling classes.dex...

I: Copying assets and libs...

I: Copying unknown files...

I: Copying original files...

總結

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