反编译apk

1.查看xml文件

使用apktool工具，使用此 apktool d *.apk来编译

如果报如下错

Microsoft Windows [版本 6.1.7601] 版权所有 (c) 2009 Microsoft Corporation。保留所有权利。 C:\Users\Administrator\Desktop\apktool>apktool d 信手书.apk I: Using Apktool 2.0.0-RC2 on 信手书.apk I: Loading resource table... W: Config flags size > 38. Exceeding bytes: 0x746E000000000000000000000000000000 00. W: Invalid config flags detected. Dropping resources: string-sr-ERR0 I: Loading resource table... W: Config flags size > 38. Exceeding bytes: 0x746E000000000000000000000000000000 00. W: Invalid config flags detected. Dropping resources: string-sr-ERR1 I: Decoding AndroidManifest.xml with resources... I: Loading resource table from file: C:\Users\Administrator\apktool\framework\1. apk I: Regular manifest package... I: Decoding file-resources... W: Could not decode attr value, using undecoded value instead: ns=android, name= touchscreenBlocksFocus, value=0xffffffff W: Could not decode attr value, using undecoded value instead: ns=android, name= scrollIndicators, value=0x00000003 I: Decoding values */* XMLs... Exception in thread "main" brut.androlib.err.UndefinedResObject: resource spec: 0x01010490         at brut.androlib.res.data.ResPackage.getResSpec(ResPackage.java:59)         at brut.androlib.res.data.ResTable.getResSpec(ResTable.java:58)         at brut.androlib.res.data.ResTable.getResSpec(ResTable.java:54)         at brut.androlib.res.data.value.ResReferenceValue.getReferent(ResReferen ceValue.java:60)         at brut.androlib.res.data.value.ResStyleValue.serializeToResValuesXml(Re sStyleValue.java:54)         at brut.androlib.res.AndrolibResources.generateValuesFile(AndrolibResour ces.java:564)         at brut.androlib.res.AndrolibResources.decode(AndrolibResources.java:327 )         at brut.androlib.Androlib.decodeResourcesFull(Androlib.java:123)         at brut.androlib.ApkDecoder.decode(ApkDecoder.java:102)         at brut.apktool.Main.cmdDecode(Main.java:170)         at brut.apktool.Main.main(Main.java:86) C:\Users\Administrator\Desktop\apktool> C:\Users\Administrator\Desktop\apktool>

请下载framework-res.apk文件，然后执行此命令 apktool if framework-res.apk

如果出现如下错误

Microsoft Windows [版本 6.1.7601] 版权所有 (c) 2009 Microsoft Corporation。保留所有权利。 C:\Users\Administrator\Desktop\apktool>apktool if freagmework-res.apk Exception in thread "main" brut.androlib.AndrolibException: java.io.FileNotFound Exception: freagmework-res.apk (系统找不到指定的文件。)         at brut.androlib.res.AndrolibResources.installFramework(AndrolibResource s.java:681)         at brut.androlib.Androlib.installFramework(Androlib.java:649)         at brut.apktool.Main.cmdInstallFramework(Main.java:256)         at brut.apktool.Main.main(Main.java:92) Caused by: java.io.FileNotFoundException: freagmework-res.apk (系统找不到指定的 文件。)         at java.io.RandomAccessFile.open(Native Method)         at java.io.RandomAccessFile.<init>(Unknown Source)         at org.apache.commons.compress.archivers.zip.ZipFile.<init>(ZipFile.java :203)         at org.apache.commons.compress.archivers.zip.ZipFile.<init>(ZipFile.java :182)         at org.apache.commons.compress.archivers.zip.ZipFile.<init>(ZipFile.java :143)         at brut.directory.ZipExtFile.<init>(ZipExtFile.java:28)         at brut.androlib.res.AndrolibResources.installFramework(AndrolibResource s.java:647)         ... 3 more C:\Users\Administrator\Desktop\apktool>apktool if framework-res.apk I: Framework installed to: C:\Users\Administrator\apktool\framework\1.apk C:\Users\Administrator\Desktop\apktool>apktool d 信手书.apk I: Using Apktool 2.0.0-RC2 on 信手书.apk I: Loading resource table... W: Config flags size > 38. Exceeding bytes: 0x746E000000000000000000000000000000 00. W: Invalid config flags detected. Dropping resources: string-sr-ERR0 I: Loading resource table... W: Config flags size > 38. Exceeding bytes: 0x746E000000000000000000000000000000 00. W: Invalid config flags detected. Dropping resources: string-sr-ERR1 I: Decoding AndroidManifest.xml with resources... I: Loading resource table from file: C:\Users\Administrator\apktool\framework\1. apk W: Could not decode attr value, using undecoded value instead: ns=android, name= supportsRtl, value=0xffffffff I: Regular manifest package... I: Decoding file-resources... W: Could not decode attr value, using undecoded value instead: ns=android, name= state_activated, value=0xffffffff W: Could not decode attr value, using undecoded value instead: ns=android, name= layoutDirection, value=0x00000003 W: Could not decode attr value, using undecoded value instead: ns=android, name= layout_alignParentEnd, value=0xffffffff W: Could not decode attr value, using undecoded value instead: ns=android, name= layout_marginStart, value=0x00008001 W: Could not decode attr value, using undecoded value instead: ns=android, name= layout_toStartOf, value=0x7f080070 W: Could not decode attr value, using undecoded value instead: ns=android, name= layoutDirection, value=0x00000000 W: Could not decode attr value, using undecoded value instead: ns=android, name= layout_toEndOf, value=0x7f0800c3 W: Could not decode attr value, using undecoded value instead: ns=android, name= background, value=0x0101032c W: Could not decode attr value, using undecoded value instead: ns=android, name= layout_toEndOf, value=0x7f0800c3 W: Could not decode attr value, using undecoded value instead: ns=android, name= alpha, value=0x7f060057 W: Could not decode attr value, using undecoded value instead: ns=android, name= alpha, value=0x7f060055 W: Could not decode attr value, using undecoded value instead: ns=android, name= exitFadeDuration, value=0x010e0001 W: Could not decode attr value, using undecoded value instead: ns=android, name= viewportWidth, value=0x41c00000 W: Could not decode attr value, using undecoded value instead: ns=android, name= viewportHeight, value=0x41c00000 W: Could not decode attr value, using undecoded value instead: ns=android, name= fillColor, value=0x0106000b W: Could not decode attr value, using undecoded value instead: ns=android, name= pathData, value=0x00000007 Exception in thread "main" java.lang.NullPointerException         at java.io.Writer.write(Unknown Source)         at brut.androlib.res.util.ExtMXSerializer.writeAttributeValue(ExtMXSeria lizer.java:38)         at org.xmlpull.mxp1_serializer.MXSerializer.attribute(MXSerializer.java: 673)         at org.xmlpull.v1.wrapper.classic.XmlSerializerDelegate.attribute(XmlSer ializerDelegate.java:106)         at org.xmlpull.v1.wrapper.classic.StaticXmlSerializerWrapper.writeStartT ag(StaticXmlSerializerWrapper.java:267)         at org.xmlpull.v1.wrapper.classic.StaticXmlSerializerWrapper.event(Stati cXmlSerializerWrapper.java:211)         at brut.androlib.res.decoder.XmlPullStreamDecoder$1.event(XmlPullStreamD ecoder.java:83)         at brut.androlib.res.decoder.XmlPullStreamDecoder.decode(XmlPullStreamDe coder.java:141)         at brut.androlib.res.decoder.ResStreamDecoderContainer.decode(ResStreamD ecoderContainer.java:33)         at brut.androlib.res.decoder.ResFileDecoder.decode(ResFileDecoder.java:1 07)         at brut.androlib.res.decoder.ResFileDecoder.decode(ResFileDecoder.java:9 1)         at brut.androlib.res.AndrolibResources.decode(AndrolibResources.java:322 )         at brut.androlib.Androlib.decodeResourcesFull(Androlib.java:123)         at brut.androlib.ApkDecoder.decode(ApkDecoder.java:102)         at brut.apktool.Main.cmdDecode(Main.java:170)         at brut.apktool.Main.main(Main.java:86) C:\Users\Administrator\Desktop\apktool>

            请尝试换 apktool最新版，问题就解决了

2.使用如下方法提取class文件

 a>使用压缩工具右键打开apk文件提出压缩过的classes.dex文件

 

 b>使用如下命令对dex文件解析为jar文件

    d2j-dex2jar.bat  classex.dex

   

   如图所示class-dex2jar.jar文件就是对class打包的文件，使用jd-gui查看class-dex2jar.jar文件就是源码文件了