Dynamically changing the text color, on Alarm notification

Question

Hi all,

Currently i am in middle of developing Alarm app, for android.

Basically what i want to achieve is that, whenever my alarm is fired , i want the textview color to be changed to red.

I have multiple alarms in my application.

Where should i write the color change event for textview? And in BroadcastReceiver:onReceive(), exactly how can i know, which alarm is fired.

With Rgds Yaaga