Android

Flat UI

Using library https://github.com/eluleci/FlatUI

Attrs for the components : https://github.com/eluleci/FlatUI/blob/master/library/src/main/res/values/attrs.xml

Showcase code : https://github.com/eluleci/FlatUI/blob/master/sample/src/main/res/layout/activity_main.xml

Google Cloud Messaging (GCM)

To send a message to device, execute following in command line:

api_key=AI....               >> Change it
device_id=AP......d6U-E      >> Change it
curl --header "Authorization: key=$api_key" --header Content-Type:"application/json" https://android.googleapis.com/gcm/send  -d "{\"registration_ids\":[\"$device_id\"]}"