dyomedea/src/lib/background-geolocation.ts

93 lines
3.2 KiB
TypeScript

import { BackgroundGeolocationPlugin } from '@capacitor-community/background-geolocation';
import { registerPlugin } from '@capacitor/core';
const BackgroundGeolocation = registerPlugin<BackgroundGeolocationPlugin>(
'BackgroundGeolocation'
);
const backgroundGeolocationConfig = {
// If the "backgroundMessage" option is defined, the watcher will
// provide location updates whether the app is in the background or the
// foreground. If it is not defined, location updates are only
// guaranteed in the foreground. This is true on both platforms.
// On Android, a notification must be shown to continue receiving
// location updates in the background. This option specifies the text of
// that notification.
backgroundMessage: 'Cancel to prevent battery drain.',
// The title of the notification mentioned above. Defaults to "Using
// your location".
backgroundTitle: 'Tracking You.',
// Whether permissions should be requested from the user automatically,
// if they are not already granted. Defaults to "true".
requestPermissions: true,
// If "true", stale locations may be delivered while the device
// obtains a GPS fix. You are responsible for checking the "time"
// property. If "false", locations are guaranteed to be up to date.
// Defaults to "false".
stale: false,
// The minimum number of metres between subsequent locations. Defaults
// to 0.
distanceFilter: 5,
};
export const startBackgroundGeolocation = async (newLocationHandler: any) => {
const locationHandler = (location: any, error: any) => {
console.log('com.dyomedea.dyomedea LOG', ' - Callback');
if (error) {
if (error.code === 'NOT_AUTHORIZED') {
if (
window.confirm(
'This app needs your location, ' +
'but does not have permission.\n\n' +
'Open settings now?'
)
) {
// It can be useful to direct the user to their device's
// settings when location permissions have been denied. The
// plugin provides the 'openSettings' method to do exactly
// this.
BackgroundGeolocation.openSettings();
}
}
return console.error('com.dyomedea.dyomedea LOG', ' - error: ', error);
}
console.log(location);
if (location !== undefined) {
newLocationHandler(location);
}
return console.log('com.dyomedea.dyomedea LOG', ' - location: ', location);
};
var watcher_id;
console.log('com.dyomedea.dyomedea LOG', ' - Adding the watcher');
await BackgroundGeolocation.addWatcher(
backgroundGeolocationConfig,
locationHandler
)
.then(function after_the_watcher_has_been_added(id) {
// When a watcher is no longer needed, it should be removed by calling
// 'removeWatcher' with an object containing its ID.
console.log('com.dyomedea.dyomedea LOG', ' - Watcher added');
watcher_id = id;
/*BackgroundGeolocation.removeWatcher({
id: watcher_id,
}); */
})
.catch((reason) => {
console.error('com.dyomedea.dyomedea LOG', ' - reason: ', reason);
});
return watcher_id;
};
export const stopBackgroundGeolocation = (watcher_id: any) => {
BackgroundGeolocation.removeWatcher({
id: watcher_id,
});
};