startTimeLocation method

void startTimeLocation({ String clientKey = "singleTimeLocation", int interval = 2000, double distance = -1, AMapLocationMode locationMode = AMapLocationMode.Hight_Accuracy, DesiredAccuracy desiredAccuracy = DesiredAccuracy.Best, required LocationCallback callback, })

开始定位

Implementation

//优化 多线程回调 clientName 多个地方同时使用后台定位，这里可以同时返回多个回调通道
void startTimeLocation(
    {String clientKey = "singleTimeLocation",
    int interval = 2000,
    double distance = -1,
    AMapLocationMode locationMode = AMapLocationMode.Hight_Accuracy,
    DesiredAccuracy desiredAccuracy = DesiredAccuracy.Best,
    required LocationCallback callback}) {
  //注意：定位已经在启动，不摧毁不要反复执行
  clientMap.putIfAbsent(clientKey, () => AMapFlutterLocation());
  AMapFlutterLocation? location = clientMap[clientKey];
  //监听定位返回
  location?.onLocationChanged().listen((Map<String, Object> result) {
    currentLocation = LocationInfo.fromJson(result);
    callback(currentLocation!);
  });
  AMapLocationOption locationOption = AMapLocationOption(
    onceLocation: false,
    locationInterval: interval,
    distanceFilter: distance,
    locationMode: locationMode,
    desiredAccuracy: desiredAccuracy,
    sensorEnable: true,
  );
  //适配ios14及以上 精准定位权限
  locationOption.fullAccuracyPurposeKey = fullAccuracyPurposeKey ?? "purposeKey";
  location?.setLocationOption(locationOption);
  location?.startLocation();
}