由网友(躲进你怀里)分享简介：http://www.sqlite.org/rtree.html 说，R *树包括作为合并的一部分，但默认情况下禁用，并启用简单地定义的SQLITE_ENABLE_RTREE C- preprocessor宏编译http://www.sqlite.org/rtree.html says that the r*tr...

http://www.sqlite.org/rtree.html 说，R *树包括作为合并的一部分，但默认情况下禁用，并启用简单地定义的SQLITE_ENABLE_RTREE C- preprocessor宏编译

http://www.sqlite.org/rtree.html says that the r*tree is "included as part of the amalgamation but is disabled by default" and to enable it "simply compile with the SQLITE_ENABLE_RTREE C-preprocessor macro defined"

嗯，我想用在我的Andr​​oid应用程序R树，但显然SQLite是所有pre-安装等有没有办法到用户的手机/设备上启用了？

Well I want to use R-trees in my android app, but clearly SQLite is all pre-installed etc. Is there a way to enable it on a user's phone/device?

另外，是否有可能使用NDK和免费提供源$ C ​​$ C的SQLite的？

Alternatively, is it possible to use the NDK and the freely available source code for SQLite?

推荐答案

您可以完全编译您自己的版本的SQLite。我们这样做是为了使来自wxSQLite加密/ codeC模块。看看在Android Git仓库SQLite的源代码。基本上它是那么容易，创造一个Android.mk的选项（如SQLITE_ENABLE_RTREE）你想启用。当然，这会给你一个机库。为了使用它，你会需要从NDK访问它，或者创建一个包装器（同样，你可以看一下Android的存储库和Java / JNI包装到SQLite的）

You can absolutely compile your own version of SQLite. We do this in order to enable the encryption/codec modules from wxSQLite. Take a look at the SQLite source in the Android Git repository. Basically it's as easy and creating a Android.mk with the options (such as SQLITE_ENABLE_RTREE) you'd like enabled. Of course, this will give you a native library. In order to use it you'll need to access it from the NDK or create a wrapper (again, you can look at the Android repository and Java/JNI wrappers to SQLite)