同一个android apk 如何在同一个设备上同时安装两个，
推荐回答（5个）
回答：有两种方法如下
方法一，Eclipse开发环境中整合：
1. 工程原来是两个APK，InnerAPK和OuterAPK，里面都只有一个Activity，分别为InnerActivity和OuterActivity。
2. 在InnerAPK工程上选择右键，选择Properties->Android，勾选Is Library，然后选择Apply，点击OK关闭对话框即可。
3. 第(2)其实将InnerAPK作为一个Library工程了，我们需要在OuteAPK中引用这个工程，同样在OuterAPK上点击右键，选择Properties->Android，选择Add，然后选择InnerAPK。
4. 之后可以在你需要使用的地方直接import InnerAPK的包名即可，比如import com.example.innerAPK.InnerActivity。
5. 将在InnerActivity中的AndroidManifest.xml文件中的内容移动到OuterActivity的AndroidManifest.xml文件中，此例子只有InnerActivity而已：
方法二：在Android源代码包上mmm命令编译
1. 首先将InnerAPK和OuterAPK两包代码都复制到packages/apps目录下
2. 在OuterAPK目录下新建Android.mk文件，
3. 然后跟方法一的第(5)步一样，将AndroidManifest.xml文件中的内容从一个Inner转移到Outer当中。
4. 然后采用mmm命令编译生成apk。
1、将apk解包成一个文件夹
2、修改AndroidManifest.xml中对应的包名
3、修改smali目录下中的包
4、将文件夹打包成apk
5、将apk重新签名
6、验证apk的签名
7、优化apk
8、安装apk，并测试
前提条件：
1、java的环境
2、Eclipse及android的开发环境(这个主要是用来进行调试)
3、text文本编辑器，本人用的是UEdit，也可以用类似的，主要是利用其查找及替换功能
想下为什么一个apk，为什么装两次会覆盖之前的。
每个程序都有唯一的ID。比如qq，com.tencent.mobileqq 类似这样的ID， 在装的时候系统会判断是否已经装了这个ID应用。
如果装了则更新，所以你一个apk装了，不可能同时出现两个图标的。
唯一的办法....反编译出来，改个ID重新编译。
我试过。光改.apk名字再安装没有用。
关键是 package名字如 com.exaple.test
这很关键，要改很多处，一改程序就错
关注！
我知道在/data/app安装的软件都有特定的名称，如com.tencent.mobileqq-1.apk
也许你把软件安装时的名称改成不一样点就行，我只是猜测而已
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