Quiero leer registros de llamadas en el android

1. Crear observador:

class CustomContentObserver extends ContentObserver { public CustomContentObserver(Handler handler) { super(handler); } @Override public boolean deliverSelfNotifications() { return false; } public void logCallLog() { long dialed; String columns[]=new String[] { CallLog.Calls._ID, CallLog.Calls.NUMBER, CallLog.Calls.DATE, CallLog.Calls.DURATION, CallLog.Calls.TYPE}; Cursor c; c = getContentResolver().query(Uri.parse("content://call_log/calls"), columns, null, null, "Calls._ID DESC"); //last record first while (c.moveToNext()) { dialed=c.getLong(c.getColumnIndex(CallLog.Calls.DATE)); Log.i("CallLog","type: " + c.getString(4) + "Call to number: "+number+", registered at: "+new Date(dialed).toString()); } } public void onChange(boolean selfChange) { super.onChange(selfChange); Log.d("PhoneService", "StringsContentObserver.onChange( " + selfChange + ")"); logCallLog(); } } 

2. Registrar observador:

  Uri mediaUri = android.provider.CallLog.Calls.CONTENT_URI; Log.d("PhoneService", "The Encoded path of the media Uri is " + mediaUri.getEncodedPath()); CustomContentObserver custObser = new CustomContentObserver(handler); imageContentRsr.registerContentObserver(mediaUri, false, custObser); 

EDIT: A partir de Jellybean (4.1), ahora necesita los dos permisos

  <uses-permission android:name="android.permission.READ_CALL_LOG" /> 

Para que esto funcione y no lance una excepción de denegación de permisos