Refactoring

app/src/main/java/eu/faircode/email/MediaPlayerHelper.java

@@ -88,12 +88,16 @@ public class MediaPlayerHelper {
             // This doesn't require READ_PHONE_STATE permission
             int mode = am.getMode();
             Log.i("Audio mode=" + mode);
-            return (mode == AudioManager.MODE_RINGTONE ||
-                    mode == AudioManager.MODE_IN_CALL ||
-                    mode == AudioManager.MODE_IN_COMMUNICATION);
+            return isInCall(mode);
         } catch (Throwable ex) {
             Log.e(ex);
             return false;
         }
     }
+
+    static boolean isInCall(int mode) {
+        return (mode == AudioManager.MODE_RINGTONE ||
+                mode == AudioManager.MODE_IN_CALL ||
+                mode == AudioManager.MODE_IN_COMMUNICATION);
+    }
 }