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This is a Dart plugin wrapper for the Polar SDK on Android and iOS

polar #

Plugin wrapper for the Polar SDK

Note #

This is an unofficial wrapper for the Polar SDK. For any questions regarding the underlying SDKs or Polar devices in general, please see the official repository.

Getting Started #

Android #

android/app/src/main/AndroidManifest.xml:

<uses-permission android:name="android.permission.BLUETOOTH_SCAN" android:usesPermissionFlags="neverForLocation" />
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" android:maxSdkVersion="30" />
<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" android:maxSdkVersion="30" />

If you use BLUETOOTH_SCAN to determine location, remove android:usesPermissionFlags="neverForLocation"

If you use location services in your app, remove android:maxSdkVersion="30" from the location permission tags

iOS #

Change the deployment target in Xcode to iOS 14+

Podfile:

platform :ios, '14.0'

Info.plist:

<key>NSBluetoothAlwaysUsageDescription</key>
<string>Used to connect to Polar devices</string>
<key>NSBluetoothPeripheralUsageDescription</key>
<string>Used to connect to Polar devices</string>
<key>UIBackgroundModes</key>
<array>
  <string>bluetooth-central</string>
</array>

Usage #

import 'package:flutter/foundation.dart';
import 'package:polar/polar.dart';

const identifier = '1C709B20';
final polar = Polar();

void example() {
  polar.connectToDevice(identifier);
  streamWhenReady();
}

void streamWhenReady() async {
  await polar.sdkFeatureReady.firstWhere(
    (e) =>
        e.identifier == identifier &&
        e.feature == PolarSdkFeature.onlineStreaming,
  );
  final availabletypes =
      await polar.getAvailableOnlineStreamDataTypes(identifier);

  debugPrint('available types: $availabletypes');

  if (availabletypes.contains(PolarDataType.hr)) {
    polar
        .startHrStreaming(identifier)
        .listen((e) => debugPrint('HR data received'));
  }
  if (availabletypes.contains(PolarDataType.ecg)) {
    polar
        .startEcgStreaming(identifier)
        .listen((e) => debugPrint('ECG data received'));
  }
  if (availabletypes.contains(PolarDataType.acc)) {
    polar
        .startAccStreaming(identifier)
        .listen((e) => debugPrint('ACC data received'));
  }
}