1.下载apktool.jar — 解压

2.下载Mac上的辅助工具apktool-install-macosx.. – 解压

3. 将apktool.jar放到apktool-install-macosx..目录下，也就是跟apktool命令放到一起

4.运行sh apktool

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bixiaopeng@bixiaopengtekiMacBook-Pro
 ~$ /Users/bixiaopeng/Downloads/apktool-install-macosx-r05-ibot/apktool ; exit;

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Apktool
 v1.5.2 -
 a tool for reengineering
 Android apk files

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Copyright 2010 Ryszard
 Wi?niewski <brut.alll@gmail.com>

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with
 smali v1.4.1,
 and baksmali v1.4.1

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Updated
 by @iBotPeaches <connor.tumbleson@gmail.com>

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Apache
 License 2.0 (http://www.apache.org/licenses/LICENSE-2.0)

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Usage:
 apktool [-q|--quiet OR -v|--verbose] COMMAND […]

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COMMANDs
 are:

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    d[ecode]
 [OPTS] <file.apk> [<dir>]

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        Decode
 <file.apk> to <dir>.

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        OPTS:

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        -s,
 --no-src

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            Do
 not decode sources.

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        -r,
 --no-res

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            Do
 not decode resources.

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        -d,
 --debug

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            Decode
 in debug mode. Check project page for more
 info.

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        -b,
 --no-debug-info

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            Baksmali
 -- don't write out debug info (.local, .param, .line, etc.)

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        -f,
 --force

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            Force
 delete destination directory.

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        -t
 <tag>, --frame-tag <tag>

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            Try
 to use framework files tagged by <tag>.

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        --frame-path
 <dir>

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            Use
 the specified directory for framework
 files

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        --keep-broken-res

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            Use if there
 was an error and some resources were dropped, e.g.:

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            "Invalid
 config flags detected. Dropping resources",
 but you

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            want
 to decode them anyway, even with errors. You will have to

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            fix
 them manually before building.

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    b[uild]
 [OPTS] [<app_path>] [<out_file>]               ----从你给出的本地路径构建一个apk

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        Build
 an apk from already decoded application located in <app_path>.

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        It
 will automatically detect, whether files was changed and perform

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        needed
 steps only.

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        If
 you omit <app_path> then current directory will be used.

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        If
 you omit <out_file> then <app_path>/dist/<name_of_original.apk>

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        will
 be used.

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        OPTS:

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        -f,
 --force-all

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            Skip
 changes detection and build all files.

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        -d,
 --debug

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            Build
 in debug mode. Check project page for more
 info.

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        -a,
 --aapt

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            Loads
 aapt from specified location.

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    if|install-framework
 <framework.apk> [<tag>] --frame-path [<location>]

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        Install
 framework file to your system.

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For
 additional info, see: http://code.google.com/p/android-apktool/

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For
 smali/baksmali info, see: http://code.google.com/p/smali/

（1）先查看$PATH的配置

(3) 接下来你就可以直接使用apktool了

三.APKTOOL的命令解释

1.反编译APK命令

apktool d <file.apk> <dir>

<file.apk>代表了要反编译的apk文件的路径，最好写绝对路径，比如C:MusicPlayer.apk

<dir>代表了反编译后的文件的存储位置，比如C:MusicPlayer

-f指令

apktool d –f <file.apk> <dir>

apktool b <dir>

这里的<dir>就是刚才你反编译时输入的<dir>（如C:MusicPlayer）,输入这行命令后，如果一切正常，你会发现C:MusicPlayer内多了2个文件夹build和dist，其中分别存储着编译过程中逐个编译的文件以及最终打包的apk文件。

该命令用于为APKTool安装特定的framework-res.apk文件，以方便进行反编译一些与ROM相互依赖的APK文件。具体情况请看常见问题

四.APKTOOL使用实例

4.1 反编译新浪微博的APK

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bixiaopeng@bixiaopengtekiMacBook-Pro
 ~$ apktool d /Users/bixiaopeng/Downloads/com.sina.weibo.apk /Users/bixiaopeng/work-folder/OWL-APKTOOL

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I:
 Baksmaling…

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I:
 Loading resource table…

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I:
 Loaded.

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I:
 Decoding AndroidManifest.xml with resources…

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I:
 Loading resource table from file: /Users/bixiaopeng/Library/apktool/framework/1.apk

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I:
 Loaded.

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I:
 Regular manifest package…

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I:
 Decoding file-resources…

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I:
 Decoding values */* XMLs…

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I:
 Done.

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I:
 Copying assets and libs…

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反编译后的结果：

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bixiaopeng@bixiaopengtekiMacBook-Pro
 ~$ apktool b /Users/bixiaopeng/work-folder/OWL-APKTOOL

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I:
 Checking whether sources has changed…

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I:
 Checking whether resources has changed…

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I:
 Building resources…

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I:
 Building apk file…

4.3 自动签名

`1`	`bixiaopeng@bixiaopengtekiMacBook-Pro dist$ jarsigner -verbose -keystore bxp.keystore -signedjar` `new.apk com.sina.weibo.apk bxp.keystore`

【keystore】:bxp.keystore

【签名前的apk名字】:com.sina.weibo.apk

`1`	`keytool -genkey -keystore bxp.keystore -keyalg RSA -validity` `10000` `-alias bxp.keystore`

-genkey 产生证书文件

-keystore 指定密钥库的.keystore文件中

-keyalg 指定密钥的算法

-validity 为证书有效天数，这里我们写的是10000天。
-alias 产生别名

注意：

2. 在用keytool生成数字证书时必须保证：-keystore androidapp.keystore -alias androidapp.keystore 两者名称必须相同。否则下一步签名时会出现错误：jarsigner：找不到 androidapp.keystore 的证书链。androidapp.keystore 必须引用包含专用密钥和相应的公共密钥证书链的有效密钥库密钥条目。