Loc-Chain/nearby_connections
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This commit is contained in:
Thomas Atkins 2021-04-11 01:48:27 -05:00
parent 1613f9a0c7
commit c05f71f0c0
1 changed files with 7 additions and 79 deletions
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86
example/lib/main.dart
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@ -39,20 +39,15 @@ class _MyBodyState extends State<Body> {
void initState() {
super.initState();
WidgetsBinding.instance!.addPostFrameCallback((_) {
// _userName = await FlutterUdid.consistentUdid;
startAdvertising();
startDiscovery();
});
}
final String userName =
"00000 11111 22222 33333 44444 55555 66666 77777 88888 99999 aaaaa bbbbb ccccc ddddd eeeee"; // Random().nextInt(10000).toString();
// static String userName =
// "00000 11111 22222 33333 44444 55555 66666 77777 88888 99999 aaaaa bbbbb ccccc ddddd eeeee"; // Random().nextInt(10000).toString();
final Strategy strategy = Strategy.P2P_STAR;
Map<String, ConnectionInfo> endpointMap = Map();
static String _userName = "";
File? tempFile; //reference to the file currently being transferred
Map<int, String> map =
Map(); //store filename mapped to corresponding payloadId
@override
Widget build(BuildContext context) {
@ -62,28 +57,7 @@ class _MyBodyState extends State<Body> {
child: ListView(
children: <Widget>[
Text("User Name: " + userName),
Wrap(
children: <Widget>[
ElevatedButton(
child: Text("Restart"),
onPressed: () async {
try {
stopAll();
startAdvertising();
startDiscovery();
} catch (exception) {
showSnackbar(exception);
}
},
),
ElevatedButton(
child: Text("Stop"),
onPressed: () async {
stopAll();
},
),
],
),
Divider(),
Text("Number of connected devices: ${endpointMap.length}"),
ElevatedButton(
child: Text("Stop All Endpoints"),
@ -111,26 +85,6 @@ class _MyBodyState extends State<Body> {
});
},
),
ElevatedButton(
child: Text("Send File Payload"),
onPressed: () async {
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);
showSnackbar("Sending file to ${m.key}");
Nearby().sendBytesPayload(
m.key,
Uint8List.fromList(
"$payloadId:${file.path.split('/').last}".codeUnits));
}
},
),
],
),
),
@ -143,6 +97,10 @@ class _MyBodyState extends State<Body> {
));
}
void getUUID() async {
await FlutterUdid.consistentUdid;
}
void stopAll() async {
await Nearby().stopAllEndpoints();
await Nearby().stopAdvertising();
@ -228,27 +186,6 @@ class _MyBodyState extends State<Body> {
if (payload.type == PayloadType.BYTES) {
String str = String.fromCharCodes(payload.bytes!);
showSnackbar(endid + ": " + str);
if (str.contains(':')) {
// used for file payload as file payload is mapped as
// payloadId:filename
int payloadId = int.parse(str.split(':')[0]);
String fileName = (str.split(':')[1]);
if (map.containsKey(payloadId)) {
if (await tempFile!.exists()) {
tempFile!.rename(tempFile!.parent.path + "/" + fileName);
} else {
showSnackbar("File doesn't exist");
}
} else {
//add to map if not already
map[payloadId] = fileName;
}
}
} else if (payload.type == PayloadType.FILE) {
showSnackbar(endid + ": File transfer started");
tempFile = File(payload.filePath!);
}
},
onPayloadTransferUpdate: (endid, payloadTransferUpdate) {
@ -260,15 +197,6 @@ class _MyBodyState extends State<Body> {
} else if (payloadTransferUpdate.status == PayloadStatus.SUCCESS) {
showSnackbar(
"$endid success, total bytes = ${payloadTransferUpdate.totalBytes}");
if (map.containsKey(payloadTransferUpdate.id)) {
//rename the file now
String name = map[payloadTransferUpdate.id]!;
tempFile!.rename(tempFile!.parent.path + "/" + name);
} else {
//bytes not received till yet
map[payloadTransferUpdate.id] = "";
}
}
},
);