How to handle native android keyboard using appium

Linking https://github.com/appium/appium/blob/master/docs/en/writing-running-appium/android/android-ime.md

Nice, work like a charm. thak you

driver.HideKeyboard();

Linking https://github.com/appium/appium/blob/master/docs/en/writing-running-appium/android/android-ime.md

I am unable to perform search icon click operation in android native app keyboard .Please suggest me how to do this action i tried with pressKeyCode and Keys.Enter ,But these are not working.Thanks in advance.