MeteoLecce (2)

I'm continuing to develop my first app (in Android Studio) for MeteoLecce (a wether forecast page on Lecce).

Today I understand how to create a margin in every direction between the views (the elements on an interface):

Margins

We need to click on the view of our interest then click on the circle of our interest to create the arrow to the final view (on another circle of the other element).

Margins: starting point to create the arrow to the end point on the final object

Now, I need of a Json reader...