Programmatically/Automatically disable GPS when not used

Question

When Android apps ask for the GPS to be enabled, after the app is turned off, GPS is not automatically turned off. I suspect this is not only the case on my Honor 10, but on most Android phones. This is a privacy and a energy wasting concern.

Is there a way to disable GPS after the app has been closed? I only find old, outdated answers to that question, or that it's not possible.

Both apps that do this, as well as sample code would be fine with me.

Answer 1

OK, I reply myself, it was quite easy in fact :

const getFilterValues = (state, resource) => {
  let values = undefined;

  if (!state || !resource) return values;

  let filterJSON =
    state.router &&
    state.router.location &&
    state.router.location.query &&
    state.router.location.query.filter;

  if (filterJSON) {
    let filters = JSON.parse(decodeURIComponent(filterJSON));
    if (filters) {
      values = filters;
    }
  }
  else {
    filterJSON =
      state.admin &&
      state.admin.resources &&
      state.admin.resources[resource] &&
      state.admin.resources[resource].list &&
      state.admin.resources[resource].list.params &&
      state.admin.resources[resource].list.params.filter;

    if (filterJSON) {
      values = filterJSON;
    }
  }

  return values;
};

const mapStateToProps = (state, props) => {
    let filters = getFilterValues(state, 'tags');
    return {
      ...props,
      filters
    };
  };

const CustomTagList = connect(
    mapStateToProps,
  )(TagList); 

Don't forget to change last lines of code :

export default compose(
    connect(undefined, { push }),
    withStyles(styles)
)(CustomTagList);```

Now you have props.filters value in TagEdit. :)