Android : Change color of response text on my snippet - on selecting the marker in android

I am working on android with google map marker, look at the images below

I want to change the color of Y & N according to the response, like if it is Y I want the color should be GREEN & if it is N then the color should be RED.

Right now both Y & N are having RED color because I have written following code:

<TextView
            android:id="@+id/response"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_marginLeft="5dp"
            android:layout_toRightOf="@id/response_lbl"
            android:textAllCaps="true"
            android:textColor="@color/event_response_s"
            android:textSize="18sp" />

Where event_response_s = RED.

I tried this by removing the this android:textColor="@color/event_response_s" xml code.

if (marker.getSnippet().equals("Y")){
            response.setTextColor(context.getResources().getColor(R.color.green));
        }
if (marker.getSnippet().equals("N")) {
            response.setTextColor(context.getResources().getColor(R.color.red));
        }

Please let me know if you need more information or to know whatelse I tried. Thanks.