FastBle

npm install @ohos/fastble --save

BleManager.getInstance().init();

BleManager.getInstance()
            .enableLog(true)
            .setReConnectCount(1, 5000)
            .setConnectOverTime(20000)
            .setOperateTimeout(5000);

let scanRuleConfig: BleScanRuleConfig = new BleScanRuleConfig.Builder()
              .setServiceUuids(serviceUuids)      // 只扫描指定的服务的设备，可选
              .setDeviceName(true, names)         // 只扫描指定广播名的设备，可选
              .setDeviceMac(mac)                  // 只扫描指定mac的设备，可选
              .setAutoConnect(isAutoConnect)      // 连接时的autoConnect参数，可选，默认false
              .setScanTimeOut(10000)              // 扫描超时时间，可选，默认10秒
              .build();
BleManager.getInstance().initScanRule(scanRuleConfig);

BleManager.getInstance().scan(new class extends BleScanCallback {
    @Override
    onScanStarted(success: boolean): void {
        console.info("onScanStarted");
        _this.clearScanDevice();
        _this.is_loading = true;
        _this.loading_rotate = 360;
        _this.btn_scan_text = $r('app.string.stop_scan');
        _this.connectedDevices = BleManager.getInstance().getAllConnectedDevice();
    }
    
    @Override
    onLeScan(bleDevice: BleDevice): void {
        console.info("onLeScan");
    }
    
    @Override
    onScanning(bleDevice: BleDevice): void {
        console.info("onScanning");
        ArrayHelper.add(_this.bleDeviceList, bleDevice);
    }
    
    @Override
    onScanFinished(scanResultList: Array<BleDevice>): void {
        console.info("onScanFinished");
        _this.is_loading = false;
        _this.loading_rotate = 0;
        _this.btn_scan_text = $r('app.string.start_scan');
        _this.connectedDevices = BleManager.getInstance().getAllConnectedDevice();
    }
})

BleManager.getInstance().connect(bleDevice, new class extends BleGattCallback {
    public onStartConnect(): void {
        _this.progressDialogCtrl.open();
    }
    
    public onConnectFail(bleDevice: BleDevice, exception: BleException): void {
        _this.progressDialogCtrl.close();
    }
    
    public onConnectSuccess(bleDevice: BleDevice, gatt: bluetooth.GattClientDevice, status: number): void {
        _this.progressDialogCtrl.close();
    }
    
    public onDisConnected(isActiveDisConnected: boolean, device: BleDevice, gatt: bluetooth.GattClientDevice, status: number): void {
        _this.progressDialogCtrl.close();
    }
});

BleManager.getInstance().cancelScan();

BleManager.getInstance().read(
    this.device,
    this.characteristic.serviceUuid,
    this.characteristic.characteristicUuid,
    new class extends BleReadCallback {
    
        public onReadSuccess(data: Uint8Array): void {
            setTimeout(()=> {
                _this.appendDataText(HexUtil.formatHexString(data, true));
            });
        }
    
        public onReadFailure(exception: BleException): void {
            setTimeout(()=> {
                _this.appendDataText(exception.toString());
            });
        }
    });

BleManager.getInstance().write(
    this.device,
    this.characteristic.serviceUuid,
    this.characteristic.characteristicUuid,
    HexUtil.hexStringToBytes(hex),
    true,
    true,
    0,
    new class extends BleWriteCallback {
    
        public onWriteSuccess(current: number, total: number, justWrite: Uint8Array): void {
            setTimeout(()=> {
                _this.appendDataText("write success, current: " + current
                        + " total: " + total
                        + " justWrite: " + HexUtil.formatHexString(justWrite, true));
            });
        }
    
        public onWriteFailure(exception: BleException): void {
            setTimeout(()=> {
                _this.appendDataText(exception.toString());
            });
        }
    });

|---- FastBle
|     |---- entry  # 示例代码文件夹
|     |---- wxFastBle  # fastble库文件夹
|	    |----src
          |----main
              |----ets
                  |----bluetooth 核心逻辑
                  |----callback #回调处理
                  |----exception #异常事件处理
                  |----scan #蓝牙扫描实现
                  |----data #数据处理实现
                  |----utils #工具类
                  |----BleManager.ets #蓝牙连接管理
|           |---- index.ets  # 对外接口
|     |---- README.md  # 安装使用方法