moyoung_bluetooth_plugin 0.0.3 moyoung_bluetooth_plugin: ^0.0.3 copied to clipboard
A Flutter plugin for communicating with the watch. Includes the following features: Scan BLE device, Connect and so on, more than 50 functional modules.
import 'dart:async';
import 'package:flutter/material.dart';
import 'package:moyoung_bluetooth_plugin/moyoung_ble.dart';
import 'modules/contact_list_page.dart';
import 'device.dart';
import 'package:flutter_contacts/flutter_contacts.dart';
import 'package:permission_handler/permission_handler.dart';
void main() {
runApp(const MaterialApp(
title: "moyoung ble demo",
home: MyApp(),
));
}
class MyApp extends StatefulWidget {
const MyApp({Key? key}) : super(key: key);
@override
State<MyApp> createState() => _MyAppState();
}
class _MyAppState extends State<MyApp> {
final _streamSubscriptions = <StreamSubscription<dynamic>>[];
final MoYoungBle _blePlugin = MoYoungBle();
String _permissionTxt = "requestPermissions()";
String _scanBtnTxt = "startScan(10*1000)";
String _cancelScanResult = "cancelScan()";
String _contactInfo = 'skip 2 contacts';
final List<BleScanBean> _deviceList = [];
@override
void initState() {
super.initState();
subscriptStream();
}
void subscriptStream() {
_streamSubscriptions.add(
_blePlugin.bleScanEveStm.listen(
(BleScanBean event) async {
setState(() {
if (event.isCompleted) {
//Scan completed, do something
} else {
_deviceList.add(event);
}
});
},
),
);
}
@override
void dispose() {
super.dispose();
for (final subscription in _streamSubscriptions) {
subscription.cancel();
}
}
@override
Widget build(BuildContext context) {
return MaterialApp(
home: Scaffold(
appBar: AppBar(
title: const Text('Watch Flutter Plugin example app'),
),
body: Center(
child: Column(
children: <Widget>[
ElevatedButton(
onPressed: requestPermissions,
child: Text(_permissionTxt)),
ElevatedButton(
onPressed: startScan,
child: Text(_scanBtnTxt)),
ElevatedButton(
onPressed: cancelScan,
child: Text(_cancelScanResult)),
ElevatedButton(
onPressed: selectContact,
child: Text(_contactInfo)),
Expanded(
child: ListView.separated(
itemBuilder: (BuildContext context, int index) {
return ListTile(
title: Text('${_deviceList[index].name},${_deviceList[index].address}'),
onTap: () {
cancelScan();
Navigator.push(context,
MaterialPageRoute(builder: (context) {
return DevicePage(
device : _deviceList[index],
);
}));
});
},
separatorBuilder: (BuildContext context, int index) {
return const Divider(
color: Colors.blue,
);
},
itemCount: _deviceList.length),
)
],
),
),
),
);
}
void requestPermissions() {
[Permission.location, Permission.storage, Permission.manageExternalStorage]
.request().then((value) => {
setState(() {
Map<Permission, PermissionStatus> statuses = value;
if (statuses[Permission.location] == PermissionStatus.denied) {
String permissionName = Permission.location.toString();
_permissionTxt = "$permissionName is denied";
return;
}
if (statuses[Permission.storage] == PermissionStatus.denied) {
String permissionName = Permission.storage.toString();
_permissionTxt = "$permissionName is denied";
return;
}
_permissionTxt = "Permission is granted.";
})
});
}
void startScan() {
if (!mounted) return;
_blePlugin.startScan(10*1000).then((value) => {
setState(() {
_scanBtnTxt = value ? "Scanning" : "Scan filed";
})
}).onError((error, stackTrace) => {
});
}
Future<void> cancelScan() async {
await _blePlugin.cancelScan;
if (!mounted) return;
setState(() {
_cancelScanResult = 'cancelScan()';
});
}
Future<void> selectContact() async {
final Contact contact = await Navigator.push(context, MaterialPageRoute(
builder: (context) => FlutterContactsExample(pageContext: context),
)
);
if (!mounted) return;
setState(() {
String name = contact.name.toString();
String phone = contact.phones.first.toString();
_contactInfo = '$name, $phone';
});
}
}
//创建时的代码
// import 'package:flutter/material.dart';
// import 'dart:async';
//
// import 'package:flutter/services.dart';
// import 'package:moyoung_bluetooth_plugin/moyoung_bluetooth_plugin.dart';
//
// void main() {
// runApp(const MyApp());
// }
//
// class MyApp extends StatefulWidget {
// const MyApp({Key? key}) : super(key: key);
//
// @override
// State<MyApp> createState() => _MyAppState();
// }
//
// class _MyAppState extends State<MyApp> {
// String _platformVersion = 'Unknown';
// final _moyoungBluetoothPlugin = MoyoungBluetoothPlugin();
//
// @override
// void initState() {
// super.initState();
// initPlatformState();
// }
//
// // Platform messages are asynchronous, so we initialize in an async method.
// Future<void> initPlatformState() async {
// String platformVersion;
// // Platform messages may fail, so we use a try/catch PlatformException.
// // We also handle the message potentially returning null.
// try {
// platformVersion =
// await _moyoungBluetoothPlugin.getPlatformVersion() ?? 'Unknown platform version';
// } on PlatformException {
// platformVersion = 'Failed to get platform version.';
// }
//
// // If the widget was removed from the tree while the asynchronous platform
// // message was in flight, we want to discard the reply rather than calling
// // setState to update our non-existent appearance.
// if (!mounted) return;
//
// setState(() {
// _platformVersion = platformVersion;
// });
// }
//
// @override
// Widget build(BuildContext context) {
// return MaterialApp(
// home: Scaffold(
// appBar: AppBar(
// title: const Text('Plugin example app'),
// ),
// body: Center(
// child: Text('Running on: $_platformVersion\n'),
// ),
// ),
// );
// }
// }