Sunshine app created from Udacity Developing Android Apps course.
#Install You will need to create and configure an API key for Open Weather Map. http://openweathermap.org Define a your API key as a system environment variable.
On Linux define a new file /etc/profile.d/openweathermapapikey.sh with the contents:
export OPEN_WEATHER_MAP_API_KEY="<your api key>"
Logout and log back in for /etc/profile.d settings to take effect.
On other systems define an environment variable using best know methods. The gradle build will look for the OPEN_WEATHER_MAP_API_KEY environment variable.