Configuration API.

Instances of Config are consumed by BackgroundGeolocation.ready and BackgroundGeolocation.setConfig.

Example

Config params = new Config(
  desiredAccuracy: Config.DESIRED_ACCURACY_HIGH,
  distanceFilter: 10.0,
  stopOnTerminate: false,
  startOnBoot: true,
  url: 'http://my.server.com',
  params: {
    "user_id": 123
  },
  headers: {
    "my-auth-token":"secret-key"
  }
);

BackgroundGeolocation.ready(params).then((State state) {
  print('[ready] BackgroundGeolocation is configured and ready to use');

  BackgroundGeolocation.start();
});

// To modify config after #ready has been executed, use #setConfig
BackgroundGeolocation.setConfig(Config(
  headers: {
    "my-auth-token": "my-new-secret-key"
  }
)).then((State state) {
  BackgroundGeolocation.sync();
});