Reject a call programmatically without a ring

Question

I am creating an app to reject calls from specific numbers without even getting a single ring to the calling person.

I have a code that rejects the call after a partial ring. Please don't say this question is repeated. I have been searching code to reject the call without a ring for long time still didn't find the solution. Kindly help me!

public void onReceive(Context context, Intent intent) {
    Bundle b = intent.getExtras();
    incommingNumber = b.getString(TelephonyManager.EXTRA_INCOMING_NUMBER);

     String state = intent.getStringExtra(TelephonyManager.EXTRA_STATE);


        for(int i=0;i<blockedNumbers.length;i++)
        {
            if(incommingNumber.equalsIgnoreCase(blockedNumbers[i]))
            {
                TelephonyManager telephony = (TelephonyManager) 
                context.getSystemService(Context.TELEPHONY_SERVICE);  
                  try {
                   Class c = Class.forName(telephony.getClass().getName());
                   Method m = c.getDeclaredMethod("getITelephony");
                   m.setAccessible(true);
                   telephonyService = (ITelephony) m.invoke(telephony);
                   telephonyService.silenceRinger();
                   telephonyService.endCall();
                  } catch (Exception e) {
                   e.printStackTrace();
                  }
            }
        }

    }

This is the code I have used to reject the call. But it rejects with one ring.

http://stackoverflow.com/questions/7121508/android-taking-complete-control-of-phone-is-it-possible-how/7121586#7121586 — Vineet Shukla, Nov 12 '12 at 10:12

score 1 · Answer 1 · answered Feb 15 '14 at 07:47

1

you have to define priority in manifest.. for example:

 <receiver android:name=".CallReceiver">
    <intent-filter android:priority="100">
        <action android:name="android.intent.action.PHONE_STATE" />
    </intent-filter>
 </receiver>

answered Feb 15 '14 at 07:47

user3312793

11
1

score 0 · Answer 2 · edited Sep 29 '17 at 13:37

0

I believe you have to call:

setResultData(null);

By doing so you "kill" the message being passed on through all the receivers.

If this doesn't help your should try to find a way to give your receiver a higher priority in the system, so that you can take over and set the result data to null for all the subsequent receiver calls.

edited Sep 29 '17 at 13:37

Vadim Kotov

8,084
8
48
62

answered Nov 12 '12 at 10:24

DecodeGnome

1,809
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score 0 · Answer 3 · answered Oct 22 '16 at 12:15

Use these permissions in android manifest file;

<uses-permission android:name="android.permission.MODIFY_PHONE_STATE" />
<uses-permission android:name="android.permission.CALL_PHONE" />
<uses-permission android:name="android.permission.READ_PHONE_STATE" />

The first permission "MODIFY_PHONE_STATE" is very important, because this handles disabling Phone Ringing during call. When anybody calls you , at that time your phone will show a FLASH TYPE of the incoming no. with no ringing.

This work at my end. Do tell me if found any problem.

Reject a call programmatically without a ring

3 Answers3