apktool反编译的一些问题

项目中用到Android apk反编译重打包，可在用apktool遇到了一些问题，今天抽时间把问题总结下；

（1）我最初用的apktool版本为1.5.2，在反编译时偶尔报错如下：

2014-12-11 13:46:29        I: Baksmaling...

2014-12-11 13:46:35        I: Loading resource table...

2014-12-11 13:46:36        I: Loaded.

2014-12-11 13:46:36        I: Decoding AndroidManifest.xml with resources...

2014-12-11 13:46:36        I: Loading resource table from file:C:\Users\sunxinxin01\apktool\framework\1.apk

2014-12-11 13:46:38        I: Loaded.

2014-12-11 13:46:38        W: Could not decode attr value, using undecoded valueinstead: ns=android, name=hardwareAccelerated, value=0xffffffff

2014-12-11 13:46:38        I: Regular manifest package...

2014-12-11 13:46:38        I: Decoding file-resources...

2014-12-11 13:46:38        W: Could not decode attr value, using undecoded valueinstead: ns=android, name=textIsSelectable, value=0x00000000

2014-12-11 13:46:38        W: Could not decode attr value, using undecoded valueinstead: ns=android, name=layerType, value=0x00000001

2014-12-11 13:46:39        I: Decoding values */* XMLs...

2014-12-11 13:46:39        Exception in thread "main"brut.androlib.err.UndefinedResObject: resource spec: 0x01010362

2014-12-11 13:46:39                 atbrut.androlib.res.data.ResPackage.getResSpec(ResPackage.java:61)

2014-12-11 13:46:39                 atbrut.androlib.res.data.ResTable.getResSpec(ResTable.java:58)

2014-12-11 13:46:39                 atbrut.androlib.res.data.ResTable.getResSpec(ResTable.java:54)

2014-12-11 13:46:39                 atbrut.androlib.res.data.value.ResReferenceValue.getReferent(ResReferenceValue.java:62)

2014-12-11 13:46:39                 at brut.androlib.res.data.value.ResStyleValue.serializeToResValuesXml(ResStyleValue.java:51)

2014-12-11 13:46:39                 atbrut.androlib.res.AndrolibResources.generateValuesFile(AndrolibResources.java:440)

2014-12-11 13:46:39                 atbrut.androlib.res.AndrolibResources.decode(AndrolibResources.java:243)

2014-12-11 13:46:39                 atbrut.androlib.Androlib.decodeResourcesFull(Androlib.java:115)

2014-12-11 13:46:39                 atbrut.androlib.ApkDecoder.decode(ApkDecoder.java:114)

2014-12-11 13:46:39                 at brut.apktool.Main.cmdDecode(Main.java:146)

2014-12-11 13:46:39                 at brut.apktool.Main.main(Main.java:77)

解决方案：将C:\Users\用户\apktool文件夹删除即可解决；

（2）在用apktool1.5.2版本时，某些apk反编译会报如下错：

2015-01-29 11:50:57        I: Baksmaling...

2015-01-29 11:51:06        I: Loading resource table...

2015-01-29 11:51:06        Exception in thread "main"brut.androlib.AndrolibException: Could not decode arsc file

2015-01-29 11:51:06                 atbrut.androlib.res.decoder.ARSCDecoder.decode(ARSCDecoder.java:56)

2015-01-29 11:51:06                 atbrut.androlib.res.AndrolibResources.getResPackagesFromApk(AndrolibResources.java:491)

2015-01-29 11:51:06                 at brut.androlib.res.AndrolibResources.loadMainPkg(AndrolibResources.java:74)

2015-01-29 11:51:06                 atbrut.androlib.res.AndrolibResources.getResTable(AndrolibResources.java:66)

2015-01-29 11:51:06                 atbrut.androlib.Androlib.getResTable(Androlib.java:50)

2015-01-29 11:51:06                 atbrut.androlib.ApkDecoder.getResTable(ApkDecoder.java:189)

2015-01-29 11:51:06                 atbrut.androlib.ApkDecoder.decode(ApkDecoder.java:114)

2015-01-29 11:51:06                 at brut.apktool.Main.cmdDecode(Main.java:146)

2015-01-29 11:51:06                 at brut.apktool.Main.main(Main.java:77)

2015-01-29 11:51:06        Caused by: java.io.IOException: Expected: 0x001c0001, got:0x00000000

2015-01-29 11:51:06                 atbrut.util.ExtDataInput.skipCheckInt(ExtDataInput.java:48)

2015-01-29 11:51:06                 at brut.androlib.res.decoder.StringBlock.read(StringBlock.java:44)

2015-01-29 11:51:06                 atbrut.androlib.res.decoder.ARSCDecoder.readPackage(ARSCDecoder.java:102)

2015-01-29 11:51:06                 atbrut.androlib.res.decoder.ARSCDecoder.readTable(ARSCDecoder.java:83)

2015-01-29 11:51:06                 at brut.androlib.res.decoder.ARSCDecoder.decode(ARSCDecoder.java:49)

2015-01-29 11:51:07                 ... 8 more

解决方案：将apktool版本升级到2.0.0即可解决，但要注意的是这一版本使用jdk1.7编译的，所以jre低于1.7的会报错；

apktool2.0.0下载地址：https://bitbucket.org/iBotPeaches/apktool/downloads；

（3）将apktool升级到2.0.0时，重打包出来的apk在安装时报错：INSTALL_PARSE_FAILED_NO_CERTIFICATES。网上说是没有签名，可已经用jarsigner签名过了，后来发现是由于jdk7的默认签名算法改变了，和jdk6的不同。

解决方案：使用jarsigner签名时要注意加入以下选项，这样打出来的apk就ok了：

-digestalg SHA1 -sigalg MD5withRSA

参考：http://androiddevelopertutorial.com/fixing-install_parse_failed_no_certificates-android-jdk7