12-04 15:32:04.423: E/AndroidRuntime(2913): java.lang.RuntimeException: Failure delivering result ResultInfo{who=null, request=1, result=-1, data=Intent { act=inline-data (has extras) }} to activity {com.istor.oilquality/com.istor.oilquality.MainActivity}: java.lang.NullPointerException: uriString