app-zj/lib/plugin/bluetooth_plugin.dart

import 'dart:io';

import 'package:flutter/services.dart';

class BluetoothPlugin {
  factory BluetoothPlugin() => _instance;
  BluetoothPlugin._();
  static final BluetoothPlugin _instance = BluetoothPlugin._();
  static BluetoothPlugin get instance => _instance;

  final MethodChannel _channel = const MethodChannel("io.flutter.plugins/bluetooth");

  //开始扫描
  Future<int> startScan() async {
    if (Platform.isIOS) {
      return 0;
    }
    return _channel.invokeMethod('startScan').then<int>((d) => d);
  }

  //设备是否支持蓝牙
  Future<bool> isSupportBle() async {
    if (Platform.isIOS) {
      return true;
    }
    return _channel.invokeMethod('isSupportBle').then<bool>((d) => d);
  }

  //打开蓝牙
  Future open() async {
    if (Platform.isAndroid) {
      _channel.invokeMethod('open');
    }
  }
}