Call Blocker using SL4A

SL4A (Scripting Layer for Android) as name suggest is designed to run scripts on android. I am using it for running python, but support java, shell, perl and many others.

I am using an android mobile, but it didn't had a way to block series of phone numbers (last three number could be anything). So I was trying to turn off the ringer. Here is the code:

import android

import time

droid = android.Android()

droid.startTrackingPhoneState() #this is needed for keeping track of state of phone

while True: #infinite loop

try:

res=droid.eventWait() #wait for an event to occur and returns a dictionary

val=res.result[u'data'] #u'data' (a internally defined constant) is where all the needed information is stored

if val[u'state']==u'ringing': #if phone is ringing

number=val[u'incomingNumber'] #get phone number

if number.find("1408959")!=-1: #if phone number contain "1408959" then go to silent mode

state=droid.checkRingerSilentMode() #store the ringer state

droid.toggleRingerSilentMode(True) #switch to silent mode

time.sleep(30) #wait for the call to end (takes about 30sec)

droid.toggleRingerSilentMode(state.result) #get back to original ringer state

except :

print "error"

time.sleep(1)

droid.stopTrackingPhoneState()

this program keeps running in background by help of SL4A. As of yet there are some problem, as it seem to crash when contact or call log is opened.