开发新手可以反编译看看人家的源码如何实现的.....
不过不是所有应用都可以反编译的，据说Android4以后加入了代码加密、混淆技术，大大保障了开发人员代码的安全......
地址：
http://code.google.com/p/dex2jar/
dex2jar contains 4 compment
- dex-reader is designed to read the Dalvik Executable (.dex/.odex) format. It has a light weight API similar with ASM. An example here
- dex-translator is designed to do the convert job. It reads the dex instruction to dex-ir format, after some optimize, convert to ASM format.
- dex-ir used by dex-translator, is designed to represent the dex instruction
- dex-tools tools to work with .class files. here are examples:
News
- Jan 2, 2012, dex2jar-0.0.9.5 add support to work with .class files.
- Dec 25, 2011, dex2jar-0.0.9.4 add support to translate ICS dex file and read odex file
- Nov 10, 2011, dex2jar-0.0.9.3 can translate apks in android-2.3.3 emulator(/system/app/x.apk)
- Nov 03, 2011, add Jenkins: https://dex2jar.ci.cloudbees.com/ and maven repo: http://repository-dex2jar.forge.cloudbees.com/release/
- Nov 02, 2011, Code generated by dex2jar-0.0.9.2 about commons-collections-3.2.1 can pass all junit test.
注意
请遵循Google相关协议和相关法律法规