feat(mobile): sort places by distance #17740
+226
−7
There are no files selected for viewing
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,77 @@ | ||
| import 'dart:convert'; | ||
|
|
||
| class PlaceResult { | ||
| /// The label to show associated with this curated object | ||
| final String label; | ||
|
|
||
| /// The id to lookup the asset from the server | ||
| final String id; | ||
|
|
||
| /// The latitude of the location | ||
| final double latitude; | ||
|
|
||
| /// The longitude of the location | ||
| final double longitude; | ||
|
|
||
| PlaceResult({ | ||
| required this.label, | ||
| required this.id, | ||
| required this.latitude, | ||
| required this.longitude, | ||
| }); | ||
|
|
||
| PlaceResult copyWith({ | ||
| String? label, | ||
| String? id, | ||
| double? latitude, | ||
| double? longitude, | ||
| }) { | ||
| return PlaceResult( | ||
| label: label ?? this.label, | ||
| id: id ?? this.id, | ||
| latitude: latitude ?? this.latitude, | ||
| longitude: longitude ?? this.longitude, | ||
| ); | ||
| } | ||
|
|
||
| Map<String, dynamic> toMap() { | ||
| return <String, dynamic>{ | ||
| 'label': label, | ||
| 'id': id, | ||
| 'latitude': latitude, | ||
| 'longitude': longitude, | ||
| }; | ||
| } | ||
|
|
||
| factory PlaceResult.fromMap(Map<String, dynamic> map) { | ||
| return PlaceResult( | ||
| label: map['label'] as String, | ||
| id: map['id'] as String, | ||
| latitude: map['latitude'] as double, | ||
| longitude: map['longitude'] as double, | ||
| ); | ||
| } | ||
|
|
||
| String toJson() => json.encode(toMap()); | ||
|
|
||
| factory PlaceResult.fromJson(String source) => | ||
| PlaceResult.fromMap(json.decode(source) as Map<String, dynamic>); | ||
|
|
||
| @override | ||
| String toString() => | ||
| 'CuratedContent(label: $label, id: $id, latitude: $latitude, longitude: $longitude)'; | ||
|
|
||
| @override | ||
| bool operator ==(covariant PlaceResult other) { | ||
| if (identical(this, other)) return true; | ||
|
|
||
| return other.label == label && | ||
| other.id == id && | ||
| other.latitude == latitude && | ||
| other.longitude == longitude; | ||
| } | ||
|
|
||
| @override | ||
| int get hashCode => | ||
| label.hashCode ^ id.hashCode ^ latitude.hashCode ^ longitude.hashCode; | ||
| } |
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,30 @@ | ||
| import 'dart:math'; | ||
|
|
||
| // Add method to calculate distance between two LatLng points using Haversine formula | ||
| double calculateDistance( | ||
| double? latitude1, | ||
| double? longitude1, | ||
| double? latitude2, | ||
| double? longitude2, | ||
| ) { | ||
| if (latitude1 == null || | ||
| longitude1 == null || | ||
| latitude2 == null || | ||
| longitude2 == null) { | ||
| return double.maxFinite; | ||
| } | ||
|
|
||
| const int earthRadius = 6371; // Earth's radius in kilometers | ||
| final double lat1 = latitude1 * (pi / 180); | ||
| final double lat2 = latitude2 * (pi / 180); | ||
| final double lon1 = longitude1 * (pi / 180); | ||
| final double lon2 = longitude2 * (pi / 180); | ||
|
|
||
| final double dLat = lat2 - lat1; | ||
| final double dLon = lon2 - lon1; | ||
|
|
||
| final double a = | ||
| pow(sin(dLat / 2), 2) + cos(lat1) * cos(lat2) * pow(sin(dLon / 2), 2); | ||
| final double c = 2 * atan2(sqrt(a), sqrt(1 - a)); | ||
| return earthRadius * c; | ||
| } |
Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
There was a problem hiding this comment.
Choose a reason for hiding this comment
The reason will be displayed to describe this comment to others. Learn more.
It's generally better to move this outside of the inner sort function and have separate variants to keep the sort function branchless.