qnsdk 0.0.3
qnsdk: ^0.0.3

Flutter Android iOS

The library serves as a bridge for company equipment communications

qnsdk #

qnsdk is yolanda Company smart device communication plug-in.

Usage #

To use this plugin, add qnsdk as a dependency in your pubspec.yaml file.

Getting Started #

Xcode configuration
  • iOS10.0 and above must have Bluetooth instructions in Info.plist, otherwise the system's Bluetooth function cannot be used
  • iOS13.0 and above must be configured with the authorization instructions for Bluetooth in Info.plist, otherwise it will be found to crash.
  • There is a pair in the Info.plist [Privacy - Bluetooth Peripheral Usage Description][privacy - bluetooth always usage description] button.
Android
  • Support Android 4.3 system above
  • Using androidx libraries in your project
  • Android 6.0 above requires authorized location rights

Sample Usage #

Initialising #

 String configFileContent = await rootBundle.loadString('data/123456789.qn');
 qnApi.initSDK('123456789', configFileContent).then((result) => print('initSDK ${result.errorCode}'));

Set up listening #

 qnApi.setBleStateListener(this);
 qnApi.setBleDeviceDiscoveryListener(this);
 qnApi.setBleConnectionChangeListener(this);
 qnApi.setScaleDataListener(this);

Start scanning #

 qnApi.startBleDeviceDiscovery();

Connection #

 qnApi.connectDevice(device,user);

Receive data #

 @override
  void onGetUnsteadyWeight(QNBleDevice device, double weight) {
    unsteadyWeightStream.add(weight);
  }

  @override
  void onGetScaleData(QNBleDevice device, QNScaleData data) {
    scaleDataStream.add(data);
  }

  @override
  void onGetStoredScale(
      QNBleDevice device, List<QNScaleStoreData> storedDataList) {
    for (var item in storedDataList) {
      storedDataStream.add(item);
    }
  }

  @override
  void onScaleStateChange(QNBleDevice device, int scaleState) {
    deviceStateStream.add(scaleState);
  }
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The library serves as a bridge for company equipment communications

Repository (GitHub)
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Documentation

API reference

Uploader

liuquan596@gmail.com

License

unknown (LICENSE)

Dependencies

flutter

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