gnssview_old/lib/Controller/gnss_controller.dart

import 'package:flutter/widgets.dart';
import 'package:get/get.dart';
import 'package:gnss/gnss.dart';

class GnssController extends GetxController {
  late final Gnss gnss;
  LocationData? locationData;
  SignalData? signalData;
  var locationUpdate = 0.obs;

  var singnalUpdate = 0.obs;
  final startIndex = 0.obs;
  updateSlider(double value) {
    startIndex.value = value.ceil();

    update();
  }

  Map<String, bool> selectedSignal = {
    "GPS": true,
    "GLONASS": true,
    "GALILEO": true,
    "BEIDOU": true,
    "QZSS": true,
    "SBAS": true,
  }.obs;
  // final selectedSignal = Map<String,bool>{false, false, false, false, false};
  final QselectedSignal = <bool>[false, false, false, false, false].obs; //信号质量

  @override
  void onInit() async {
    super.onInit();
    gnss = Gnss(port: "/dev/ttysWK2", baudrate: 115200);
    // gnss = Gnss(port: "COM1", baudrate: 115200);
    gnss.start();
    gnss.locationStream.listen((location) {
      locationData = location;
      locationUpdate++;
    });
    gnss.signalStream.listen((singnal) {
      signalData = singnal;
      singnalUpdate++;
    });
  }

  @override
  void dispose() {
    gnss.dispose();
    super.dispose();
  }
}