android proxy application

I want to create an android application that acts like a proxy, all Internet communication (at least http) will be redirected to this app before reaching the network.

I don't have any idea how to do it, so any help开发者_如何转开发 is welcome.

thanks

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It's not possible without rooting the phone, as this blog post aptly explains:

http://android-proxy.blogspot.com/

Edit: It's actually a dedicated blog site!

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Actually I think that the best solution is to implement a service that handles the http request and forward them using org.apache.http.client.HttpClient but I don't know how to do it.