How to Block outgoing calls and Text SMS

Question

I am developing an App in which I need to block the teenager from using mobile while driving, I need to block the call and sms. please help . any small hints and clues will

Answer 1

To block outgoing calls, you need to register a PhoneStateListener like:

telephonyManager = (TelephonyManager)getSystemService(Context.TELEPHONY_SERVICE);
telephonyManager.listen(new MyListener(), PhoneStateListener.LISTEN_CALL_STATE);

Then define your MyListener class like:

private class Test extends PhoneStateListener {
    @Override
    public void onCallStateChanged(int state, String incomingNumber) {
        super.onCallStateChanged(state, incomingNumber);


        switch(state)
        {
        case TelephonyManager.CALL_STATE_IDLE:
            break;
        case TelephonyManager.CALL_STATE_OFFHOOK://this case is for outgoing call 
            break;
        case TelephonyManager.CALL_STATE_RINGING://this case is for incoming call
            break;
        default:
            break;
        }

    }
}