I am searching for an open source automation tool for all mobile platforms (Android, iOS).I have experience in using Selenium in all supported desktop browsers. I would like to know whether the automation of native application is supported by Selenium. If so, please provide useful links.
Selenium does function across both of those platforms using different drivers. But only for browser functionality.
For Android, there is support for a native automation using a tool very similar to Selenium, called Robotium: link They have some decent tutorials, example code and .apks and more there. It does take more foresight during development and doesn't really sit "on top of the AUT" like Selenium can.
There is also the built in "Automation" tool within X-Code that will run code from Instruments directly against the device or emulator, but I have little experience with it to steer you toward or away from it. link