Accessing localhost:port from Android emulator

Question

I'm running a web service on my local machine that runs at `localhost:54722`. I want to call the service from an app running in the Android emulator. I read that using `10.0.2.2` in the app would access localhost, but it doesn't seem to work with the port number as well. It says `HttpResponseException: Bad Request`.

Accepted Answer

You can access your host machine with the IP address "`10.0.2.2`".

This has been designed in this way by the Android team. So your webserver can perfectly run at localhost and from your Android app you can access it via "`http://10.0.2.2:<hostport>`".

If your emulator must access the internet through a proxy server, you can configure a custom HTTP proxy from the emulator's Extended controls screen. With the emulator open, click More , and then click Settings and Proxy. From here, you can define your own HTTP proxy settings.

Accessing localhost:port from Android emulator

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