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Update example to demonstrate transfer to multiple connections (#26)

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The example app now will send data to all the connected endpoints.
This commit is contained in:
afarre
2021-01-26 13:47:47 +01:00
committed by GitHub
parent f35a484334
commit c2adf90962
3 changed files with 122 additions and 63 deletions
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63
example/lib/main.dart
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@@ -35,11 +35,11 @@ class Body extends StatefulWidget {
class _MyBodyState extends State<Body> {
final String userName = Random().nextInt(10000).toString();
final Strategy strategy = Strategy.P2P_STAR;
Map<String, ConnectionInfo> endpointMap = Map();
String cId = "0"; //currently connected device ID
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) {
@@ -62,7 +62,7 @@ class _MyBodyState extends State<Body> {
} else {
Scaffold.of(context).showSnackBar(SnackBar(
content:
Text("Location permissions not granted :(")));
Text("Location permissions not granted :(")));
}
},
),
@@ -75,7 +75,7 @@ class _MyBodyState extends State<Body> {
} else {
Scaffold.of(context).showSnackBar(SnackBar(
content:
Text("Location permissions not granted :(")));
Text("Location permissions not granted :(")));
}
},
),
@@ -85,7 +85,7 @@ class _MyBodyState extends State<Body> {
if (await Nearby().checkExternalStoragePermission()) {
Scaffold.of(context).showSnackBar(SnackBar(
content:
Text("External Storage permissions granted :)")));
Text("External Storage permissions granted :)")));
} else {
Scaffold.of(context).showSnackBar(SnackBar(
content: Text(
@@ -126,7 +126,7 @@ class _MyBodyState extends State<Body> {
} else {
Scaffold.of(context).showSnackBar(SnackBar(
content:
Text("Enabling Location Service Failed :(")));
Text("Enabling Location Service Failed :(")));
}
},
),
@@ -148,7 +148,10 @@ class _MyBodyState extends State<Body> {
showSnackbar(status);
},
onDisconnected: (id) {
showSnackbar("Disconnected: " + id);
showSnackbar("Disconnected: ${endpointMap[id].endpointName}, id $id");
setState(() {
endpointMap.remove(id);
});
},
);
showSnackbar("ADVERTISING: " + a.toString());
@@ -199,7 +202,10 @@ class _MyBodyState extends State<Body> {
showSnackbar(status);
},
onDisconnected: (id) {
showSnackbar(id);
setState(() {
endpointMap.remove(id);
});
showSnackbar("Disconnected from: ${endpointMap[id].endpointName}, id $id");
},
);
},
@@ -211,7 +217,7 @@ class _MyBodyState extends State<Body> {
);
},
onEndpointLost: (id) {
showSnackbar("Lost Endpoint:" + id);
showSnackbar("Lost discovered Endpoint: ${endpointMap[id].endpointName}, id $id");
},
);
showSnackbar("DISCOVERING: " + a.toString());
@@ -228,10 +234,14 @@ class _MyBodyState extends State<Body> {
),
],
),
Text("Number of connected devices: ${endpointMap.length}"),
RaisedButton(
child: Text("Stop All Endpoints"),
onPressed: () async {
await Nearby().stopAllEndpoints();
setState(() {
endpointMap.clear();
});
},
),
Divider(),
@@ -241,25 +251,30 @@ class _MyBodyState extends State<Body> {
RaisedButton(
child: Text("Send Random Bytes Payload"),
onPressed: () async {
String a = Random().nextInt(100).toString();
showSnackbar("Sending $a to $cId");
Nearby().sendBytesPayload(cId, Uint8List.fromList(a.codeUnits));
endpointMap.forEach((key, value) {
String a = Random().nextInt(100).toString();
showSnackbar("Sending $a to ${value.endpointName}, id: $key");
Nearby().sendBytesPayload(key, Uint8List.fromList(a.codeUnits));
});
},
),
RaisedButton(
child: Text("Send File Payload"),
onPressed: () async {
File file =
await ImagePicker.pickImage(source: ImageSource.gallery);
await ImagePicker.pickImage(source: ImageSource.gallery);
if (file == null) return;
int payloadId = await Nearby().sendFilePayload(cId, file.path);
showSnackbar("Sending file to $cId");
Nearby().sendBytesPayload(
cId,
Uint8List.fromList(
"$payloadId:${file.path.split('/').last}".codeUnits));
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));
}
},
),
],
@@ -269,7 +284,7 @@ class _MyBodyState extends State<Body> {
}
void showSnackbar(dynamic a) {
Scaffold.of(context).showSnackBar(SnackBar(
ScaffoldMessenger.of(context).showSnackBar(SnackBar(
content: Text(a.toString()),
));
}
@@ -291,7 +306,9 @@ class _MyBodyState extends State<Body> {
child: Text("Accept Connection"),
onPressed: () {
Navigator.pop(context);
cId = id;
setState(() {
endpointMap[id] = info;
});
Nearby().acceptConnection(
id,
onPayLoadRecieved: (endid, payload) async {
@@ -310,7 +327,7 @@ class _MyBodyState extends State<Body> {
tempFile.rename(
tempFile.parent.path + "/" + fileName);
} else {
showSnackbar("File doesnt exist");
showSnackbar("File doesn't exist");
}
} else {
//add to map if not already
@@ -333,7 +350,7 @@ class _MyBodyState extends State<Body> {
} else if (payloadTransferUpdate.status ==
PayloadStatus.SUCCESS) {
showSnackbar(
"success, total bytes = ${payloadTransferUpdate.totalBytes}");
"$endid success, total bytes = ${payloadTransferUpdate.totalBytes}");
if (map.containsKey(payloadTransferUpdate.id)) {
//rename the file now