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nearby_connections
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Merge the null_safety with master. (#27)

Browse Source 
* initial migration using tool

* minor changes

* Completed null safety migration

* updated changelog

* Fix typo in PayloadStatus enum.

* Format changes

* Minor changes
multipeer_ios
Prerak Mann 3 years ago committed by GitHub
parent c2adf90962
commit 0797dedc35
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8 changed files with 139 additions and 150 deletions
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6
CHANGELOG.md
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@ -1,3 +1,9 @@
## 3.0.0-nullsafety.1
* Fix typo in PayloadStatus enum (`IN_PROGRRESS -> IN_PROGRESS`).
## 3.0.0-nullsafety.0
* Migrated to Null Safety.
## 2.0.2
* Fix missingPluginException.

54
example/lib/main.dart
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@ -39,7 +39,7 @@ class _MyBodyState extends State<Body> {
File tempFile; //reference to the file currently being transferred
Map<int, String> map =
Map(); //store filename mapped to corresponding payloadId
Map(); //store filename mapped to corresponding payloadId
@override
Widget build(BuildContext context) {
@ -57,12 +57,12 @@ class _MyBodyState extends State<Body> {
child: Text("checkLocationPermission"),
onPressed: () async {
if (await Nearby().checkLocationPermission()) {
Scaffold.of(context).showSnackBar(SnackBar(
ScaffoldMessenger.of(context).showSnackBar(SnackBar(
content: Text("Location permissions granted :)")));
} else {
Scaffold.of(context).showSnackBar(SnackBar(
ScaffoldMessenger.of(context).showSnackBar(SnackBar(
content:
Text("Location permissions not granted :(")));
Text("Location permissions not granted :(")));
}
},
),
@ -70,12 +70,12 @@ class _MyBodyState extends State<Body> {
child: Text("askLocationPermission"),
onPressed: () async {
if (await Nearby().askLocationPermission()) {
Scaffold.of(context).showSnackBar(SnackBar(
ScaffoldMessenger.of(context).showSnackBar(SnackBar(
content: Text("Location Permission granted :)")));
} else {
Scaffold.of(context).showSnackBar(SnackBar(
ScaffoldMessenger.of(context).showSnackBar(SnackBar(
content:
Text("Location permissions not granted :(")));
Text("Location permissions not granted :(")));
}
},
),
@ -83,11 +83,11 @@ class _MyBodyState extends State<Body> {
child: Text("checkExternalStoragePermission"),
onPressed: () async {
if (await Nearby().checkExternalStoragePermission()) {
Scaffold.of(context).showSnackBar(SnackBar(
ScaffoldMessenger.of(context).showSnackBar(SnackBar(
content:
Text("External Storage permissions granted :)")));
Text("External Storage permissions granted :)")));
} else {
Scaffold.of(context).showSnackBar(SnackBar(
ScaffoldMessenger.of(context).showSnackBar(SnackBar(
content: Text(
"External Storage permissions not granted :(")));
}
@ -109,10 +109,10 @@ class _MyBodyState extends State<Body> {
child: Text("checkLocationEnabled"),
onPressed: () async {
if (await Nearby().checkLocationEnabled()) {
Scaffold.of(context).showSnackBar(
ScaffoldMessenger.of(context).showSnackBar(
SnackBar(content: Text("Location is ON :)")));
} else {
Scaffold.of(context).showSnackBar(
ScaffoldMessenger.of(context).showSnackBar(
SnackBar(content: Text("Location is OFF :(")));
}
},
@ -121,12 +121,12 @@ class _MyBodyState extends State<Body> {
child: Text("enableLocationServices"),
onPressed: () async {
if (await Nearby().enableLocationServices()) {
Scaffold.of(context).showSnackBar(SnackBar(
ScaffoldMessenger.of(context).showSnackBar(SnackBar(
content: Text("Location Service Enabled :)")));
} else {
Scaffold.of(context).showSnackBar(SnackBar(
ScaffoldMessenger.of(context).showSnackBar(SnackBar(
content:
Text("Enabling Location Service Failed :(")));
Text("Enabling Location Service Failed :(")));
}
},
),
@ -148,7 +148,8 @@ class _MyBodyState extends State<Body> {
showSnackbar(status);
},
onDisconnected: (id) {
showSnackbar("Disconnected: ${endpointMap[id].endpointName}, id $id");
showSnackbar(
"Disconnected: ${endpointMap[id].endpointName}, id $id");
setState(() {
endpointMap.remove(id);
});
@ -205,7 +206,8 @@ class _MyBodyState extends State<Body> {
setState(() {
endpointMap.remove(id);
});
showSnackbar("Disconnected from: ${endpointMap[id].endpointName}, id $id");
showSnackbar(
"Disconnected from: ${endpointMap[id].endpointName}, id $id");
},
);
},
@ -217,7 +219,8 @@ class _MyBodyState extends State<Body> {
);
},
onEndpointLost: (id) {
showSnackbar("Lost discovered Endpoint: ${endpointMap[id].endpointName}, id $id");
showSnackbar(
"Lost discovered Endpoint: ${endpointMap[id].endpointName}, id $id");
},
);
showSnackbar("DISCOVERING: " + a.toString());
@ -255,20 +258,23 @@ class _MyBodyState extends State<Body> {
String a = Random().nextInt(100).toString();
showSnackbar("Sending $a to ${value.endpointName}, id: $key");
Nearby().sendBytesPayload(key, Uint8List.fromList(a.codeUnits));
Nearby()
.sendBytesPayload(key, Uint8List.fromList(a.codeUnits));
});
},
),
RaisedButton(
child: Text("Send File Payload"),
onPressed: () async {
File file =
await ImagePicker.pickImage(source: ImageSource.gallery);
PickedFile file =
await ImagePicker().getImage(source: ImageSource.gallery);
if (file == null) return;
for(MapEntry<String, ConnectionInfo> m in endpointMap.entries){
int payloadId = await Nearby().sendFilePayload(m.key, file.path);
for (MapEntry<String, ConnectionInfo> m
in endpointMap.entries) {
int payloadId =
await Nearby().sendFilePayload(m.key, file.path);
showSnackbar("Sending file to ${m.key}");
Nearby().sendBytesPayload(
m.key,
@ -341,7 +347,7 @@ class _MyBodyState extends State<Body> {
},
onPayloadTransferUpdate: (endid, payloadTransferUpdate) {
if (payloadTransferUpdate.status ==
PayloadStatus.IN_PROGRRESS) {
PayloadStatus.IN_PROGRESS) {
print(payloadTransferUpdate.bytesTransferred);
} else if (payloadTransferUpdate.status ==
PayloadStatus.FAILURE) {

18
example/pubspec.lock
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@ -122,7 +122,7 @@ packages:
path: ".."
relative: true
source: path
version: "2.0.2"
version: "3.0.0-nullsafety.1"
path:
dependency: transitive
description:
@ -130,20 +130,6 @@ packages:
url: "https://pub.dartlang.org"
source: hosted
version: "1.8.0-nullsafety.3"
pedantic:
dependency: transitive
description:
name: pedantic
url: "https://pub.dartlang.org"
source: hosted
version: "1.9.2"
plugin_platform_interface:
dependency: transitive
description:
name: plugin_platform_interface
url: "https://pub.dartlang.org"
source: hosted
version: "1.0.3"
sky_engine:
dependency: transitive
description: flutter
@ -206,5 +192,5 @@ packages:
source: hosted
version: "2.1.0-nullsafety.5"
sdks:
dart: ">=2.12.0-0.0 <3.0.0"
dart: ">=2.12.0-29.10.beta <3.0.0"
flutter: ">=1.20.0 <2.0.0"

12
lib/src/classes.dart
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@ -14,11 +14,11 @@ class Payload {
int id;
PayloadType type;
Uint8List bytes;
String filePath;
Uint8List? bytes;
String? filePath;
Payload({
this.id,
required this.id,
this.bytes,
this.type = PayloadType.NONE,
this.filePath,
@ -32,9 +32,9 @@ class PayloadTransferUpdate {
PayloadStatus status;
PayloadTransferUpdate({
this.id,
this.bytesTransferred,
this.totalBytes,
required this.id,
required this.bytesTransferred,
required this.totalBytes,
this.status = PayloadStatus.NONE,
});
}

4
lib/src/defs.dart
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@ -9,7 +9,7 @@ import 'package:nearby_connections/src/classes.dart';
/// **P2P_POINT_TO_POINT** - single connection, very high bandwidth
enum Strategy { P2P_CLUSTER, P2P_STAR, P2P_POINT_TO_POINT }
enum Status { CONNECTED, REJECTED, ERROR }
enum PayloadStatus { NONE, SUCCESS, FAILURE, IN_PROGRRESS, CANCELED }
enum PayloadStatus { NONE, SUCCESS, FAILURE, IN_PROGRESS, CANCELED }
enum PayloadType { NONE, BYTES, FILE, STREAM }
//
@ -29,7 +29,7 @@ typedef void OnDisconnected(String endpointId);
//
typedef void OnEndpointFound(
String endpointId, String endpointName, String serviceId);
typedef void OnEndpointLost(String endpointId);
typedef void OnEndpointLost(String? endpointId);
//
//

189
lib/src/nearby.dart
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@ -1,7 +1,6 @@
import 'dart:async';
import 'dart:typed_data';
import 'package:flutter/foundation.dart';
import 'package:flutter/services.dart';
import 'package:nearby_connections/src/classes.dart';
import 'package:nearby_connections/src/defs.dart';
@ -14,24 +13,24 @@ import 'package:nearby_connections/src/defs.dart';
/// All methods are asynchronous.
class Nearby {
//Singleton pattern for maintaining only 1 instance of this class
static Nearby _instance;
static Nearby? _instance;
factory Nearby() {
if (_instance == null) {
_instance = Nearby._();
}
return _instance;
return _instance!;
}
Nearby._() {
_channel.setMethodCallHandler((handler) {
Map<dynamic, dynamic> args = handler.arguments;
_channel.setMethodCallHandler((MethodCall handler) {
Map<dynamic, dynamic> args = handler.arguments!;
switch (handler.method) {
case "ad.onConnectionInitiated":
String endpointId = args['endpointId'];
String endpointName = args['endpointName'];
String authenticationToken = args['authenticationToken'];
bool isIncomingConnection = args['isIncomingConnection'];
String endpointId = args['endpointId'] ?? '-1';
String endpointName = args['endpointName'] ?? '-1';
String authenticationToken = args['authenticationToken'] ?? '-1';
bool isIncomingConnection = args['isIncomingConnection'] ?? false;
_advertConnectionInitiated?.call(
endpointId,
@ -40,24 +39,25 @@ class Nearby {
return null;
case "ad.onConnectionResult":
String endpointId = args['endpointId'];
Status statusCode = Status.values[args['statusCode']];
String endpointId = args['endpointId'] ?? '-1';
Status statusCode =
Status.values[args['statusCode'] ?? Status.ERROR.index];
_advertConnectionResult?.call(endpointId, statusCode);
return null;
case "ad.onDisconnected":
String endpointId = args['endpointId'];
String endpointId = args['endpointId'] ?? '-1';
_advertDisconnected?.call(endpointId);
return null;
case "dis.onConnectionInitiated":
String endpointId = args['endpointId'];
String endpointName = args['endpointName'];
String authenticationToken = args['authenticationToken'];
bool isIncomingConnection = args['isIncomingConnection'];
String endpointId = args['endpointId'] ?? '-1';
String endpointName = args['endpointName'] ?? '-1';
String authenticationToken = args['authenticationToken'] ?? '-1';
bool isIncomingConnection = args['isIncomingConnection'] ?? false;
_discoverConnectionInitiated?.call(
endpointId,
@ -66,38 +66,39 @@ class Nearby {
return null;
case "dis.onConnectionResult":
String endpointId = args['endpointId'];
Status statusCode = Status.values[args['statusCode']];
String endpointId = args['endpointId'] ?? '-1';
Status statusCode =
Status.values[args['statusCode'] ?? Status.ERROR.index];
_discoverConnectionResult?.call(endpointId, statusCode);
return null;
case "dis.onDisconnected":
String endpointId = args['endpointId'];
String endpointId = args['endpointId'] ?? '-1';
_discoverDisconnected?.call(endpointId);
return null;
case "dis.onEndpointFound":
String endpointId = args['endpointId'];
String endpointName = args['endpointName'];
String serviceId = args['serviceId'];
String endpointId = args['endpointId'] ?? '-1';
String endpointName = args['endpointName'] ?? '-1';
String serviceId = args['serviceId'] ?? '-1';
_onEndpointFound?.call(endpointId, endpointName, serviceId);
return null;
case "dis.onEndpointLost":
String endpointId = args['endpointId'];
String endpointId = args['endpointId'] ?? '-1';
_onEndpointLost?.call(endpointId);
return null;
case "onPayloadReceived":
String endpointId = args['endpointId'];
int type = args['type'];
Uint8List bytes = args['bytes'];
int payloadId = args['payloadId'];
String filePath = args['filePath'];
String endpointId = args['endpointId'] ?? '-1';
int type = args['type'] ?? PayloadType.NONE;
Uint8List bytes = args['bytes'] ?? Uint8List(0);
int payloadId = args['payloadId'] ?? -1;
String filePath = args['filePath'] ?? '';
Payload payload = Payload(
type: PayloadType.values[type],
@ -110,11 +111,11 @@ class Nearby {
break;
case "onPayloadTransferUpdate":
String endpointId = args['endpointId'];
int payloadId = args['payloadId'];
int status = args['status'];
int bytesTransferred = args['bytesTransferred'];
int totalBytes = args['totalBytes'];
String endpointId = args['endpointId'] ?? '-1';
int payloadId = args['payloadId'] ?? -1;
int status = args['status'] ?? Status.ERROR.index;
int bytesTransferred = args['bytesTransferred'] ?? 0;
int totalBytes = args['totalBytes'] ?? 0;
PayloadTransferUpdate payloadTransferUpdate = PayloadTransferUpdate(
id: payloadId,
@ -127,22 +128,22 @@ class Nearby {
break;
}
return null;
});
} as Future<dynamic> Function(MethodCall)?);
}
//for advertisers
OnConnectionInitiated _advertConnectionInitiated,
OnConnectionInitiated? _advertConnectionInitiated,
_discoverConnectionInitiated;
OnConnectionResult _advertConnectionResult, _discoverConnectionResult;
OnDisconnected _advertDisconnected, _discoverDisconnected;
OnConnectionResult? _advertConnectionResult, _discoverConnectionResult;
OnDisconnected? _advertDisconnected, _discoverDisconnected;
//for discoverers
OnEndpointFound _onEndpointFound;
OnEndpointLost _onEndpointLost;
OnEndpointFound? _onEndpointFound;
OnEndpointLost? _onEndpointLost;
//for receiving payload
OnPayloadReceived _onPayloadReceived;
OnPayloadTransferUpdate _onPayloadTransferUpdate;
OnPayloadReceived? _onPayloadReceived;
OnPayloadTransferUpdate? _onPayloadTransferUpdate;
static const MethodChannel _channel =
const MethodChannel('nearby_connections');
@ -151,21 +152,23 @@ class Nearby {
///
/// returns true/false based on location permissions.
/// Discovery cannot be started with insufficient permission
Future<bool> checkLocationPermission() async => await _channel.invokeMethod(
Future<bool> checkLocationPermission() async =>
await _channel.invokeMethod(
'checkLocationPermission',
);
) ??
false;
/// convenience method
///
/// Asks location permission
Future<bool> askLocationPermission() async =>
await _channel.invokeMethod('askLocationPermission');
await _channel.invokeMethod('askLocationPermission') ?? false;
/// convenience method
///
/// returns true/false based on external storage permissions.
Future<bool> checkExternalStoragePermission() async =>
await _channel.invokeMethod('checkExternalStoragePermission');
await _channel.invokeMethod('checkExternalStoragePermission') ?? false;
/// convenience method
///
@ -174,13 +177,13 @@ class Nearby {
/// If Location isn't enabled, devices may disconnect often.
/// Some devices may immediately disconnect
Future<bool> checkLocationEnabled() async =>
await _channel.invokeMethod('checkLocationEnabled');
await _channel.invokeMethod('checkLocationEnabled') ?? false;
/// convenience method
///
/// directs user to Location Settings, so they can turn on their Location/GPS
Future<bool> enableLocationServices() async =>
await _channel.invokeMethod('enableLocationServices');
await _channel.invokeMethod('enableLocationServices') ?? false;
/// convenience method
///
@ -201,22 +204,21 @@ class Nearby {
Future<bool> startAdvertising(
String userNickName,
Strategy strategy, {
@required OnConnectionInitiated onConnectionInitiated,
@required OnConnectionResult onConnectionResult,
@required OnDisconnected onDisconnected,
required OnConnectionInitiated onConnectionInitiated,
required OnConnectionResult onConnectionResult,
required OnDisconnected onDisconnected,
String serviceId = "com.pkmnapps.nearby_connections",
}) async {
assert(userNickName != null && strategy != null && serviceId != null);
this._advertConnectionInitiated = onConnectionInitiated;
this._advertConnectionResult = onConnectionResult;
this._advertDisconnected = onDisconnected;
return await _channel.invokeMethod('startAdvertising', <String, dynamic>{
'userNickName': userNickName,
'strategy': strategy.index,
'serviceId': serviceId,
});
'userNickName': userNickName,
'strategy': strategy.index,
'serviceId': serviceId,
}) ??
false;
}
/// Stop Advertising
@ -236,19 +238,19 @@ class Nearby {
Future<bool> startDiscovery(
String userNickName,
Strategy strategy, {
@required OnEndpointFound onEndpointFound,
@required OnEndpointLost onEndpointLost,
required OnEndpointFound onEndpointFound,
required OnEndpointLost onEndpointLost,
String serviceId = "com.pkmnapps.nearby_connections",
}) async {
assert(userNickName != null && strategy != null && serviceId != null);
this._onEndpointFound = onEndpointFound;
this._onEndpointLost = onEndpointLost;
return await _channel.invokeMethod('startDiscovery', <String, dynamic>{
'userNickName': userNickName,
'strategy': strategy.index,
'serviceId': serviceId,
});
'userNickName': userNickName,
'strategy': strategy.index,
'serviceId': serviceId,
}) ??
false;
}
/// Stop Discovery
@ -278,7 +280,6 @@ class Nearby {
/// this will call the onDisconnected method on callbacks of
/// connected endPoint
Future<void> disconnectFromEndpoint(String endpointId) async {
assert(endpointId != null);
await _channel.invokeMethod(
'disconnectFromEndpoint', <String, dynamic>{'endpointId': endpointId});
}
@ -293,24 +294,22 @@ class Nearby {
Future<bool> requestConnection(
String userNickName,
String endpointId, {
@required OnConnectionInitiated onConnectionInitiated,
@required OnConnectionResult onConnectionResult,
@required OnDisconnected onDisconnected,
required OnConnectionInitiated onConnectionInitiated,
required OnConnectionResult onConnectionResult,
required OnDisconnected onDisconnected,
}) async {
this._discoverConnectionInitiated = onConnectionInitiated;
this._discoverConnectionResult = onConnectionResult;
this._discoverDisconnected = onDisconnected;
assert(endpointId != null);
assert(userNickName != null);
return await _channel.invokeMethod(
'requestConnection',
<String, dynamic>{
'userNickName': userNickName,
'endpointId': endpointId,
},
);
'requestConnection',
<String, dynamic>{
'userNickName': userNickName,
'endpointId': endpointId,
},
) ??
false;
}
/// Needs be called by both discoverer and advertiser
@ -323,20 +322,19 @@ class Nearby {
/// only if both of them accept the connection
Future<bool> acceptConnection(
String endpointId, {
@required OnPayloadReceived onPayLoadRecieved,
OnPayloadTransferUpdate onPayloadTransferUpdate,
required OnPayloadReceived onPayLoadRecieved,
OnPayloadTransferUpdate? onPayloadTransferUpdate,
}) async {
this._onPayloadReceived = onPayLoadRecieved;
this._onPayloadTransferUpdate = onPayloadTransferUpdate;
assert(endpointId != null);
return await _channel.invokeMethod(
'acceptConnection',
<String, dynamic>{
'endpointId': endpointId,
},
);
'acceptConnection',
<String, dynamic>{
'endpointId': endpointId,
},
) ??
false;
}
/// Reject Connection
@ -349,14 +347,13 @@ class Nearby {
/// [OnConnectionResult] is called on both
/// even if one of them rejects the connection
Future<bool> rejectConnection(String endpointId) async {
assert(endpointId != null);
return await _channel.invokeMethod(
'rejectConnection',
<String, dynamic>{
'endpointId': endpointId,
},
);
'rejectConnection',
<String, dynamic>{
'endpointId': endpointId,
},
) ??
false;
}
/// Send bytes [Uint8List] payload to endpoint
@ -374,8 +371,6 @@ class Nearby {
/// ```
///
Future<void> sendBytesPayload(String endpointId, Uint8List bytes) async {
assert(endpointId != null);
return await _channel.invokeMethod(
'sendPayload',
<String, dynamic>{
@ -392,9 +387,7 @@ class Nearby {
/// You must also send a bytes payload to send the filename and extension
/// so that receiver can rename the file accordingly
/// Send the payloadID and filename to receiver as bytes payload
Future<int> sendFilePayload(String endpointId, String filePath) async {
assert(endpointId != null);
Future<int?> sendFilePayload(String endpointId, String filePath) async {
return await _channel.invokeMethod(
'sendFilePayload',
<String, dynamic>{
@ -406,8 +399,6 @@ class Nearby {
/// Use it to cancel/stop a payload transfer
Future<void> cancelPayload(int payloadId) async {
assert(payloadId != null);
return await _channel.invokeMethod(
'cancelPayload',
<String, dynamic>{

2
pubspec.lock
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@ -143,5 +143,5 @@ packages:
source: hosted
version: "2.1.0-nullsafety.5"
sdks:
dart: ">=2.12.0-0.0 <3.0.0"
dart: ">=2.12.0-29.10.beta <3.0.0"
flutter: ">=1.20.0 <2.0.0"

4
pubspec.yaml
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@ -1,10 +1,10 @@
name: nearby_connections
description: Plugin for the android NearbyConnections API. Bytes and Files Supported.
version: 2.0.2
version: 3.0.0-nullsafety.1
homepage: https://github.com/mannprerak2/nearby_connections
environment:
sdk: ">=2.1.0 <3.0.0"
sdk: '>=2.12.0-29.10.beta <3.0.0'
flutter: ">=1.20.0 <2.0.0"
dependencies:

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