The keyboard should disappear on clicking the login button

[prem0862]

Summary:

The keyboard should disappear after hitting the login button.

Steps to reproduce:

1. Run the app
2. Type credential (other than correct one) in provided space
3. Click on login button ( users can't see any response given by application)
4. Press the back button
5. will see a message given by application (at the bottom)

Expected behavior:

Whenever user should click on login button, the keyboard should disappear so that user should be able to see message thrown by the application

Observed behavior:

When I typed username and password (other than correct one), after clicking on login button, I was unable to see the message thrown by the application. Since the message was hidden by keyboard.

Device and Android version:

Nexus 5X, API 24

Screenshots:

After click on login button:

After hitting the back button (message is visible):

[prem0862]

@therajanmaurya I would like to work on this issue. Should I go ahead? Thanks

[therajanmaurya]

Yeah go ahead.

[prem0862]

#797 @therajanmaurya Please review my PR (#797) and suggest necessary changes if required. Thanks