49 lines
1.7 KiB
Dart
49 lines
1.7 KiB
Dart
import 'package:anyhow/anyhow.dart';
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import 'package:geolocator/geolocator.dart';
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/// Determine the current position of the device.
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///
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/// When the location services are not enabled or permissions
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/// are denied the `Future` will return an error.
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Future<Result<()>> ensureLocationPermission() async {
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try {
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bool serviceEnabled;
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LocationPermission permission;
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// Test if location services are enabled.
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serviceEnabled = await Geolocator.isLocationServiceEnabled();
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if (!serviceEnabled) {
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// Location services are not enabled don't continue
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// accessing the position and request users of the
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// App to enable the location services.
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return bail('Location services are disabled.');
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}
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permission = await Geolocator.checkPermission();
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if (permission == LocationPermission.denied) {
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permission = await Geolocator.requestPermission();
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if (permission == LocationPermission.denied) {
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// Permissions are denied, next time you could try
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// requesting permissions again (this is also where
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// Android's shouldShowRequestPermissionRationale
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// returned true. According to Android guidelines
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// your App should show an explanatory UI now.
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return bail('Location permissions are denied');
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}
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}
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if (permission == LocationPermission.deniedForever) {
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// Permissions are denied forever, handle appropriately.
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return bail(
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'Location permissions are permanently denied, we cannot request permissions.');
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}
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// When we reach here, permissions are granted and we can
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// continue accessing the position of the device.
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return const Ok(());
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} catch (e) {
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return bail("Ensuring Location Permission failed: $e");
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}
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}
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