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@ -2,6 +2,8 @@ import 'dart:io';
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import 'dart:math';
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import 'dart:typed_data';
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import 'package:flutter_udid/flutter_udid.dart';
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import 'package:flutter/material.dart';
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import 'package:image_picker/image_picker.dart';
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import 'package:nearby_connections/nearby_connections.dart';
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@ -33,14 +35,88 @@ class Body extends StatefulWidget {
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}
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class _MyBodyState extends State<Body> {
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final String userName = Random().nextInt(10000).toString();
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@override
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void initState() {
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super.initState();
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WidgetsBinding.instance!.addPostFrameCallback((_) {
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// _userName = await FlutterUdid.consistentUdid;
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startAdver();
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startDisco();
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});
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}
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final String userName =
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"00000 11111 22222 33333 44444 55555 66666 77777 88888 99999 aaaaa bbbbb ccccc ddddd eeeee"; // Random().nextInt(10000).toString();
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final Strategy strategy = Strategy.P2P_STAR;
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Map<String, ConnectionInfo> endpointMap = Map();
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static String _userName = "";
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File? tempFile; //reference to the file currently being transferred
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Map<int, String> map =
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Map(); //store filename mapped to corresponding payloadId
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void startAdver() async {
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try {
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bool a = await Nearby().startAdvertising(
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"adv" + userName,
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strategy,
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onConnectionInitiated: discoverOnConnectionInit,
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onConnectionResult: (id, status) {
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print("userName = $userName");
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print("id = $id");
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showSnackbar(status);
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},
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onDisconnected: (id) {
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showSnackbar(
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"Disconnected: ${endpointMap[id]!.endpointName}, id $id");
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setState(() {
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endpointMap.remove(id);
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});
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},
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);
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showSnackbar("ADVERTISING: " + a.toString());
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} catch (exception) {
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showSnackbar(exception);
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}
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}
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void startDisco() async {
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try {
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bool a = await Nearby().startDiscovery(
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"dis" + userName,
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strategy,
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onEndpointFound: (id, name, serviceId) {
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print("userName = $userName");
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print("id = $id");
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Nearby().requestConnection(
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userName,
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id,
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onConnectionInitiated: (id, info) {
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discoverOnConnectionInit(id, info);
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},
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onConnectionResult: (id, status) {
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showSnackbar(status);
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},
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onDisconnected: (id) {
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setState(() {
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endpointMap.remove(id);
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});
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showSnackbar(
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"Disconnected from: ${endpointMap[id]!.endpointName}, id $id");
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},
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);
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},
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onEndpointLost: (id) {
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showSnackbar(
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"Lost discovered Endpoint: ${endpointMap[id]!.endpointName}, id $id");
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},
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);
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showSnackbar("DISCOVERING: " + a.toString());
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} catch (e) {
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showSnackbar(e);
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}
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}
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@override
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Widget build(BuildContext context) {
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return Center(
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@ -48,117 +124,34 @@ class _MyBodyState extends State<Body> {
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padding: const EdgeInsets.all(8.0),
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child: ListView(
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children: <Widget>[
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Text(
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"Permissions",
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),
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Wrap(
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children: <Widget>[
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ElevatedButton(
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child: Text("checkLocationPermission"),
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onPressed: () async {
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if (await Nearby().checkLocationPermission()) {
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ScaffoldMessenger.of(context).showSnackBar(SnackBar(
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content: Text("Location permissions granted :)")));
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} else {
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ScaffoldMessenger.of(context).showSnackBar(SnackBar(
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content:
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Text("Location permissions not granted :(")));
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}
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},
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),
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ElevatedButton(
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child: Text("askLocationPermission"),
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onPressed: () async {
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if (await Nearby().askLocationPermission()) {
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ScaffoldMessenger.of(context).showSnackBar(SnackBar(
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content: Text("Location Permission granted :)")));
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} else {
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ScaffoldMessenger.of(context).showSnackBar(SnackBar(
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content:
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Text("Location permissions not granted :(")));
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}
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},
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),
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ElevatedButton(
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child: Text("checkExternalStoragePermission"),
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onPressed: () async {
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if (await Nearby().checkExternalStoragePermission()) {
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ScaffoldMessenger.of(context).showSnackBar(SnackBar(
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content:
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Text("External Storage permissions granted :)")));
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} else {
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ScaffoldMessenger.of(context).showSnackBar(SnackBar(
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content: Text(
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"External Storage permissions not granted :(")));
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}
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},
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),
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ElevatedButton(
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child: Text("askExternalStoragePermission"),
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onPressed: () {
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Nearby().askExternalStoragePermission();
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},
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),
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],
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),
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Divider(),
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Text("Location Enabled"),
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Wrap(
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children: <Widget>[
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ElevatedButton(
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child: Text("checkLocationEnabled"),
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onPressed: () async {
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if (await Nearby().checkLocationEnabled()) {
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ScaffoldMessenger.of(context).showSnackBar(
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SnackBar(content: Text("Location is ON :)")));
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} else {
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ScaffoldMessenger.of(context).showSnackBar(
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SnackBar(content: Text("Location is OFF :(")));
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}
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},
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),
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ElevatedButton(
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child: Text("enableLocationServices"),
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onPressed: () async {
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if (await Nearby().enableLocationServices()) {
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ScaffoldMessenger.of(context).showSnackBar(SnackBar(
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content: Text("Location Service Enabled :)")));
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} else {
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ScaffoldMessenger.of(context).showSnackBar(SnackBar(
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content:
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Text("Enabling Location Service Failed :(")));
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}
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},
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),
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],
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),
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Divider(),
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Text("User Name: " + userName),
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Wrap(
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children: <Widget>[
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ElevatedButton(
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child: Text("Start Advertising"),
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onPressed: () async {
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try {
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bool a = await Nearby().startAdvertising(
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userName,
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strategy,
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onConnectionInitiated: onConnectionInit,
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onConnectionResult: (id, status) {
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showSnackbar(status);
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},
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onDisconnected: (id) {
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showSnackbar(
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"Disconnected: ${endpointMap[id]!.endpointName}, id $id");
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setState(() {
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endpointMap.remove(id);
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});
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},
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);
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showSnackbar("ADVERTISING: " + a.toString());
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} catch (exception) {
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showSnackbar(exception);
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}
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// try {
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// bool a = await Nearby().startAdvertising(
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// "adv" + userName,
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// strategy,
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// onConnectionInitiated: discoverOnConnectionInit,
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// onConnectionResult: (id, status) {
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// print("userName = $userName");
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// print("id = $id");
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// showSnackbar(status);
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// },
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// onDisconnected: (id) {
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// showSnackbar(
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// "Disconnected: ${endpointMap[id]!.endpointName}, id $id");
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// setState(() {
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// endpointMap.remove(id);
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// });
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// },
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// );
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// showSnackbar("ADVERTISING: " + a.toString());
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// } catch (exception) {
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// showSnackbar(exception);
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// }
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},
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),
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ElevatedButton(
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@ -176,45 +169,27 @@ class _MyBodyState extends State<Body> {
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onPressed: () async {
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try {
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bool a = await Nearby().startDiscovery(
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userName,
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"dis" + userName,
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strategy,
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onEndpointFound: (id, name, serviceId) {
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// show sheet automatically to request connection
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showModalBottomSheet(
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context: context,
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builder: (builder) {
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return Center(
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child: Column(
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children: <Widget>[
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Text("id: " + id),
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Text("Name: " + name),
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Text("ServiceId: " + serviceId),
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ElevatedButton(
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child: Text("Request Connection"),
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onPressed: () {
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Navigator.pop(context);
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Nearby().requestConnection(
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userName,
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id,
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onConnectionInitiated: (id, info) {
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onConnectionInit(id, info);
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},
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onConnectionResult: (id, status) {
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showSnackbar(status);
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},
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onDisconnected: (id) {
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setState(() {
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endpointMap.remove(id);
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});
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showSnackbar(
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"Disconnected from: ${endpointMap[id]!.endpointName}, id $id");
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},
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);
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},
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),
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],
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),
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);
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print("userName = $userName");
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print("id = $id");
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Nearby().requestConnection(
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userName,
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id,
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onConnectionInitiated: (id, info) {
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discoverOnConnectionInit(id, info);
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},
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onConnectionResult: (id, status) {
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showSnackbar(status);
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},
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onDisconnected: (id) {
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setState(() {
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endpointMap.remove(id);
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});
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showSnackbar(
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"Disconnected from: ${endpointMap[id]!.endpointName}, id $id");
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},
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);
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},
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@ -255,7 +230,8 @@ class _MyBodyState extends State<Body> {
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child: Text("Send Random Bytes Payload"),
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onPressed: () async {
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endpointMap.forEach((key, value) {
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String a = Random().nextInt(100).toString();
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String a =
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"00000 11111 22222 33333 44444 55555 66666 77777 88888 99999 aaaaa bbbbb ccccc ddddd eeeee"; //Random().nextInt(100).toString();
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showSnackbar("Sending $a to ${value.endpointName}, id: $key");
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Nearby()
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@ -297,95 +273,64 @@ class _MyBodyState extends State<Body> {
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/// Called upon Connection request (on both devices)
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/// Both need to accept connection to start sending/receiving
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void onConnectionInit(String id, ConnectionInfo info) {
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showModalBottomSheet(
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context: context,
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builder: (builder) {
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return Center(
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child: Column(
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children: <Widget>[
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Text("id: " + id),
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Text("Token: " + info.authenticationToken),
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Text("Name" + info.endpointName),
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Text("Incoming: " + info.isIncomingConnection.toString()),
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ElevatedButton(
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child: Text("Accept Connection"),
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onPressed: () {
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Navigator.pop(context);
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setState(() {
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endpointMap[id] = info;
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});
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Nearby().acceptConnection(
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id,
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onPayLoadRecieved: (endid, payload) async {
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if (payload.type == PayloadType.BYTES) {
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String str = String.fromCharCodes(payload.bytes!);
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showSnackbar(endid + ": " + str);
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void discoverOnConnectionInit(String id, ConnectionInfo info) {
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setState(() {
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|
|
endpointMap[id] = info;
|
|
|
|
|
});
|
|
|
|
|
Nearby().acceptConnection(
|
|
|
|
|
id,
|
|
|
|
|
onPayLoadRecieved: (endid, payload) async {
|
|
|
|
|
print(payload);
|
|
|
|
|
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 (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) {
|
|
|
|
|
if (payloadTransferUpdate.status ==
|
|
|
|
|
PayloadStatus.IN_PROGRESS) {
|
|
|
|
|
print(payloadTransferUpdate.bytesTransferred);
|
|
|
|
|
} else if (payloadTransferUpdate.status ==
|
|
|
|
|
PayloadStatus.FAILURE) {
|
|
|
|
|
print("failed");
|
|
|
|
|
showSnackbar(endid + ": FAILED to transfer file");
|
|
|
|
|
} else if (payloadTransferUpdate.status ==
|
|
|
|
|
PayloadStatus.SUCCESS) {
|
|
|
|
|
showSnackbar(
|
|
|
|
|
"$endid success, total bytes = ${payloadTransferUpdate.totalBytes}");
|
|
|
|
|
if (map.containsKey(payloadId)) {
|
|
|
|
|
if (await tempFile!.exists()) {
|
|
|
|
|
tempFile!.rename(tempFile!.parent.path + "/" + fileName);
|
|
|
|
|
} else {
|
|
|
|
|
showSnackbar("File doesn't exist");
|
|
|
|
|
}
|
|
|
|
|
} else {
|
|
|
|
|
//add to map if not already
|
|
|
|
|
map[payloadId] = fileName;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
} else if (payload.type == PayloadType.FILE) {
|
|
|
|
|
showSnackbar(endid + ": File transfer started");
|
|
|
|
|
tempFile = File(payload.filePath!);
|
|
|
|
|
}
|
|
|
|
|
},
|
|
|
|
|
onPayloadTransferUpdate: (endid, payloadTransferUpdate) {
|
|
|
|
|
if (payloadTransferUpdate.status == PayloadStatus.IN_PROGRESS) {
|
|
|
|
|
print(payloadTransferUpdate.bytesTransferred);
|
|
|
|
|
} else if (payloadTransferUpdate.status == PayloadStatus.FAILURE) {
|
|
|
|
|
print("failed");
|
|
|
|
|
showSnackbar(endid + ": FAILED to transfer file");
|
|
|
|
|
} else if (payloadTransferUpdate.status == PayloadStatus.SUCCESS) {
|
|
|
|
|
showSnackbar(
|
|
|
|
|
"$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] = "";
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
},
|
|
|
|
|
);
|
|
|
|
|
},
|
|
|
|
|
),
|
|
|
|
|
ElevatedButton(
|
|
|
|
|
child: Text("Reject Connection"),
|
|
|
|
|
onPressed: () async {
|
|
|
|
|
Navigator.pop(context);
|
|
|
|
|
try {
|
|
|
|
|
await Nearby().rejectConnection(id);
|
|
|
|
|
} catch (e) {
|
|
|
|
|
showSnackbar(e);
|
|
|
|
|
}
|
|
|
|
|
},
|
|
|
|
|
),
|
|
|
|
|
],
|
|
|
|
|
),
|
|
|
|
|
);
|
|
|
|
|
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] = "";
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
},
|
|
|
|
|
);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
///
|
|
|
|
|
///
|
|
|
|
|
///
|
|
|
|
|
}
|
|
|
|
|