Android BLE Connection time interval

Question

I am developing a BLE application on Nexus 4 using Android BLE API. I have a few questions/doubts:

1) Is there a way to set/override the connection or notification i

Answer 1

As for changing connection interval:

Since Android Lollipop API level 21 you can use: requestConnectionPriority() With 3 levels: CONNECTION_PRIORITY_BALANCED, CONNECTION_PRIORITY_HIGH or CONNECTION_PRIORITY_LOW_POWER.

It is still not so versatile as we developers would want, but at least something...