in app proxy for android

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http://stackoverflow.com – My use case is that if the webview requests some common resources like images or jquery,I return them from the asset folder.So I am using shouldInterceptRequest() but it is available only from api 11. So I want to implement some in app proxy for the devices with api level <11.By doing this I can monitor the request at proxy and return assets for common requests.I found little proxy project to implement a light proxy,but there is very little documentation to use it and it's not yet tested on android. please provide some way to do it. (HowTos)