Come creare un'app Android che riceva automaticamente le chiamate programmaticamente da numeri particolari e funzioni su tutte le versioni Android

Questo funziona da Android 2.2 a 4.0 e ora dopo aver aggiunto il try catch all'ultima linea funziona per 4.1.2 e 4.2 Francamente parlando non so come funziona ma funziona per me.

1. Log.d(tag, "InSecond Method Ans Call"); 
2. // froyo and beyond trigger on buttonUp instead of buttonDown 
3. Intent buttonUp = new Intent(Intent.ACTION_MEDIA_BUTTON); 
4. buttonUp.putExtra(Intent.EXTRA_KEY_EVENT, new KeyEvent(KeyEvent.ACTION_UP, KeyEvent.KEYCODE_HEADSETHOOK)); 
5. sendOrderedBroadcast(buttonUp, "android.permission.CALL_PRIVILEGED"); 
6.  
7. Intent headSetUnPluggedintent = new Intent(Intent.ACTION_HEADSET_PLUG); 
8. headSetUnPluggedintent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY); 
9. headSetUnPluggedintent.putExtra("state", 0); 
10. headSetUnPluggedintent.putExtra("name", "Headset"); 
11. try { 
12. sendOrderedBroadcast(headSetUnPluggedintent, null); 
13. } catch (Exception e) {  
14. e.printStackTrace(); 
15. } 

This is working for me in Android 4.1.2 as well as i have tested on 4.2 This still gives an exception which is handled.

Edit for End Call

Hope this helps all the people looking for total solution for answer and end call.

1. /** 
2. * Reject button click listener will reject the incoming call. 
3. */ 
4. private class RejectCallOnClickListener implements OnClickListener { 
5. @Override 
6. public void onClick(View v) { 
7. Log.d(tag, "OnRejectButton: " + "Reject OnClick"); 
8. ignoreCall(); 
9. exitCleanly(); 
10. } 
11. } 
12.  
13. /** 
14. * ignore incoming calls 
15. */ 
16. private void ignoreCall() { 
17. if (USE_ITELEPHONY) 
18. ignoreCallAidl(); 
19. else 
20. ignoreCallPackageRestart(); 
21. } 
22. /** 
23. * AIDL/ITelephony technique for ignoring calls 
24. */ 
25. private void ignoreCallAidl() { 
26. try { 
27. // telephonyService.silenceRinger(); 
28.  
29. telephonyService.endCall(); 
30. } catch (RemoteException e) { 
31. e.printStackTrace(); 
32. Log.d(tag, "ignoreCall: " + "Error: " + e.getMessage()); 
33.  
34. } catch (Exception e) { 
35. e.printStackTrace(); 
36. Log.d(tag, "ignoreCall" + "Error: " + e.getMessage());