Merge pull request #1688 from AdrianLxM/dev-wear

Dev wear

app/build.gradle

@@ -68,6 +68,7 @@ android {
         buildConfigField "String", "BUILDVERSION", '"' + generateGitBuild() + '-' + generateDate() + '"'
         buildConfigField "String", "HEAD", '"' + generateGitBuild() + '"'
         testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
+        // if you change minSdkVersion to less than 11, you need to change executeTask for wear
 
         ndk {
             moduleName "BleCommandUtil"
@@ -77,7 +78,7 @@ android {
         // TODO remove once wear dependency com.google.android.gms:play-services-wearable:7.3.0
         // has been upgraded (requiring significant code changes), which currently fails release
         // build with a deprecation warning
-        abortOnError false
+        // abortOnError false
         // (disabled entirely to avoid reports on the error, which would still be displayed
         //  and it's easy to overlook that it's ignored)
         checkReleaseBuilds false
@@ -194,7 +195,7 @@ dependencies {
     implementation "org.slf4j:slf4j-api:1.7.12"
     implementation "com.jjoe64:graphview:4.0.1"
     implementation "com.joanzapata.iconify:android-iconify-fontawesome:2.1.1"
-    implementation "com.google.android.gms:play-services-wearable:7.5.0"
+    implementation 'com.google.android.gms:play-services-wearable:10.2.1'
     implementation(name: "android-edittext-validator-v1.3.4-mod", ext: "aar")
     implementation(name: "sightparser-release", ext: "aar")
     implementation 'com.madgag.spongycastle:core:1.58.0.0'

app/src/main/AndroidManifest.xml

@@ -169,7 +169,63 @@
             android:name=".plugins.general.wear.wearintegration.WatchUpdaterService"
             android:exported="true">
             <intent-filter>
-                <action android:name="com.google.android.gms.wearable.BIND_LISTENER" />
+                <!-- <action android:name="com.google.android.gms.wearable.BIND_LISTENER" /> -->
+                <!-- listeners receive events that match the action and data filters -->
+                <action android:name="com.google.android.gms.wearable.CAPABILITY_CHANGED" />
+                <action android:name="com.google.android.gms.wearable.DATA_CHANGED" />
+
+                <data
+                    android:scheme="wear"
+                    android:host="*"
+                    android:pathPrefix="/nightscout_watch_data" />
+                <data
+                    android:scheme="wear"
+                    android:host="*"
+                    android:pathPrefix="/nightscout_watch_data_resend" />
+                <data
+                    android:scheme="wear"
+                    android:host="*"
+                    android:pathPrefix="/nightscout_watch_cancel_bolus" />
+                <data
+                    android:scheme="wear"
+                    android:host="*"
+                    android:pathPrefix="/nightscout_watch_confirmactionstring" />
+                <data
+                    android:scheme="wear"
+                    android:host="*"
+                    android:pathPrefix="/nightscout_watch_initiateactionstring" />
+                <data
+                    android:scheme="wear"
+                    android:host="*"
+                    android:pathPrefix="/openwearsettings" />
+                <data
+                    android:scheme="wear"
+                    android:host="*"
+                    android:pathPrefix="/sendstatustowear" />
+                <data
+                    android:scheme="wear"
+                    android:host="*"
+                    android:pathPrefix="/sendpreferencestowear" />
+                <data
+                    android:scheme="wear"
+                    android:host="*"
+                    android:pathPrefix="/nightscout_watch_basal" />
+                <data
+                    android:scheme="wear"
+                    android:host="*"
+                    android:pathPrefix="/nightscout_watch_bolusprogress" />
+                <data
+                    android:scheme="wear"
+                    android:host="*"
+                    android:pathPrefix="/nightscout_watch_actionconfirmationrequest" />
+                <data
+                    android:scheme="wear"
+                    android:host="*"
+                    android:pathPrefix="/nightscout_watch_changeconfirmationrequest" />
+                <data
+                    android:scheme="wear"
+                    android:host="*"
+                    android:pathPrefix="/nightscout_watch_cancelnotificationrequest" />
             </intent-filter>
         </service>
         <service

app/src/main/java/info/nightscout/androidaps/plugins/general/wear/WearPlugin.java

@@ -2,6 +2,7 @@ package info.nightscout.androidaps.plugins.general.wear;
 
 import android.content.Context;
 import android.content.Intent;
+import android.util.Log;
 
 import com.squareup.otto.Subscribe;
 
@@ -35,6 +36,8 @@ public class WearPlugin extends PluginBase {
     private final Context ctx;
 
     private static WearPlugin wearPlugin;
+    private static String TAG = "WearPlugin";
+
 
     public static WearPlugin getPlugin() {
         return wearPlugin;
@@ -76,7 +79,10 @@ public class WearPlugin extends PluginBase {
     }
 
     private void sendDataToWatch(boolean status, boolean basals, boolean bgValue) {
-        if (isEnabled(getType())) { //only start service when this plugin is enabled
+
+        //Log.d(TAG, "WR: WearPlugin:sendDataToWatch (status=" + status + ",basals=" + basals + ",bgValue=" + bgValue + ")");
+
+        if (isEnabled(getType())) { // only start service when this plugin is enabled
 
             if (bgValue) {
                 ctx.startService(new Intent(ctx, WatchUpdaterService.class));
@@ -93,15 +99,20 @@ public class WearPlugin extends PluginBase {
     }
 
     void resendDataToWatch() {
+        //Log.d(TAG, "WR: WearPlugin:resendDataToWatch");
         ctx.startService(new Intent(ctx, WatchUpdaterService.class).setAction(WatchUpdaterService.ACTION_RESEND));
     }
 
     void openSettings() {
+        //Log.d(TAG, "WR: WearPlugin:openSettings");
         ctx.startService(new Intent(ctx, WatchUpdaterService.class).setAction(WatchUpdaterService.ACTION_OPEN_SETTINGS));
     }
 
     void requestNotificationCancel(String actionstring) {
-        Intent intent = new Intent(ctx, WatchUpdaterService.class).setAction(WatchUpdaterService.ACTION_CANCEL_NOTIFICATION);
+        //Log.d(TAG, "WR: WearPlugin:requestNotificationCancel");
+
+        Intent intent = new Intent(ctx, WatchUpdaterService.class)
+            .setAction(WatchUpdaterService.ACTION_CANCEL_NOTIFICATION);
         intent.putExtra("actionstring", actionstring);
         ctx.startService(intent);
     }

app/src/main/java/info/nightscout/androidaps/plugins/general/wear/wearintegration/SendToDataLayerThread.java

@@ -13,40 +13,127 @@ import com.google.android.gms.wearable.PutDataRequest;
 import com.google.android.gms.wearable.Wearable;
 
 import java.util.concurrent.TimeUnit;
+import java.util.concurrent.locks.ReentrantLock;
 
 /**
  * Created by emmablack on 12/26/14.
  */
 class SendToDataLayerThread extends AsyncTask<DataMap,Void,Void> {
     private GoogleApiClient googleApiClient;
-    private static final String TAG = "SendDataThread";
+    private static final String TAG = "SendToDataLayerThread";
-    String path;
+    private String path;
+    private String logPrefix = ""; // "WR: ";
+    private static int concurrency = 0;
+    private static int state = 0;
+    private static final ReentrantLock lock = new ReentrantLock();
+    private static long lastlock = 0;
+    private static final boolean testlockup = false; // always false in production
+
 
     SendToDataLayerThread(String path, GoogleApiClient pGoogleApiClient) {
+        // Log.d(TAG, logPrefix + "SendToDataLayerThread: " + path);
         this.path = path;
         googleApiClient = pGoogleApiClient;
     }
 
+
+    @Override
+    protected void onPreExecute() {
+        concurrency++;
+        if ((concurrency > 12) || ((concurrency > 3 && (lastlock != 0) && (tsl() - lastlock) > 300000))) {
+            // error if 9 concurrent threads or lock held for >5 minutes with concurrency of 4
+            final String err = "Wear Integration deadlock detected!! " + ((lastlock != 0) ? "locked" : "") + " state:"
+                + state + " @" + hourMinuteString(tsl());
+            // Home.toaststaticnext(err);
+            Log.e(TAG, logPrefix + err);
+        }
+        if (concurrency < 0)
+            Log.d(TAG, logPrefix + "Wear Integration impossible concurrency!!");
+
+        Log.d(TAG, logPrefix + "SendDataToLayerThread pre-execute concurrency: " + concurrency);
+    }
+
+
     @Override
     protected Void doInBackground(DataMap... params) {
-        try {
+        if (testlockup) {
-            final NodeApi.GetConnectedNodesResult nodes = Wearable.NodeApi.getConnectedNodes(googleApiClient).await(15, TimeUnit.SECONDS);
+            try {
-            for (Node node : nodes.getNodes()) {
+                Log.e(TAG, logPrefix + "WARNING RUNNING TEST LOCK UP CODE - NEVER FOR PRODUCTION");
-                for (DataMap dataMap : params) {
+                Thread.sleep(1000000); // DEEEBBUUGGGG
-                    PutDataMapRequest putDMR = PutDataMapRequest.create(path);
+            } catch (Exception e) {
-                    putDMR.getDataMap().putAll(dataMap);
-                    PutDataRequest request = putDMR.asPutDataRequest();
-                    DataApi.DataItemResult result = Wearable.DataApi.putDataItem(googleApiClient, request).await(15, TimeUnit.SECONDS);
-                    if (result.getStatus().isSuccess()) {
-                        Log.d(TAG, "DataMap: " + dataMap + " sent to: " + node.getDisplayName());
-                    } else {
-                        Log.d(TAG, "ERROR: failed to send DataMap");
-                    }
-                }
             }
-        } catch (Exception e) {
-            Log.e(TAG, "Got exception sending data to wear: " + e.toString());
         }
+        sendToWear(params);
+        concurrency--;
+        Log.d(TAG, logPrefix + "SendDataToLayerThread post-execute concurrency: " + concurrency);
         return null;
     }
+
+
+    // Debug function to expose where it might be locking up
+    private synchronized void sendToWear(final DataMap... params) {
+        if (!lock.tryLock()) {
+            Log.d(TAG, logPrefix + "Concurrent access - waiting for thread unlock");
+            lock.lock(); // enforce single threading
+            Log.d(TAG, logPrefix + "Thread unlocked - proceeding");
+        }
+        lastlock = tsl();
+        try {
+            if (state != 0) {
+                Log.e(TAG, logPrefix + "WEAR STATE ERROR: state=" + state);
+            }
+            state = 1;
+            final NodeApi.GetConnectedNodesResult nodes = Wearable.NodeApi.getConnectedNodes(googleApiClient).await(15,
+                TimeUnit.SECONDS);
+
+            Log.d(TAG, logPrefix + "Nodes: " + nodes);
+
+            state = 2;
+            for (Node node : nodes.getNodes()) {
+                state = 3;
+                for (DataMap dataMap : params) {
+                    state = 4;
+                    PutDataMapRequest putDMR = PutDataMapRequest.create(path);
+                    state = 5;
+                    putDMR.getDataMap().putAll(dataMap);
+                    putDMR.setUrgent();
+                    state = 6;
+                    PutDataRequest request = putDMR.asPutDataRequest();
+                    state = 7;
+                    DataApi.DataItemResult result = Wearable.DataApi.putDataItem(googleApiClient, request).await(15,
+                        TimeUnit.SECONDS);
+                    state = 8;
+                    if (result.getStatus().isSuccess()) {
+                        Log.d(TAG, logPrefix + "DataMap: " + dataMap + " sent to: " + node.getDisplayName());
+                    } else {
+                        Log.e(TAG, logPrefix + "ERROR: failed to send DataMap");
+                        result = Wearable.DataApi.putDataItem(googleApiClient, request).await(30, TimeUnit.SECONDS);
+                        if (result.getStatus().isSuccess()) {
+                            Log.d(TAG, logPrefix + "DataMap retry: " + dataMap + " sent to: " + node.getDisplayName());
+                        } else {
+                            Log.e(TAG, logPrefix + "ERROR on retry: failed to send DataMap: "
+                                + result.getStatus().toString());
+                        }
+                    }
+                    state = 9;
+                }
+            }
+            state = 0;
+        } catch (Exception e) {
+            Log.e(TAG, logPrefix + "Got exception in sendToWear: " + e.toString());
+        } finally {
+            lastlock = 0;
+            lock.unlock();
+        }
+    }
+
+
+    private static long tsl() {
+        return System.currentTimeMillis();
+    }
+
+
+    private static String hourMinuteString(long timestamp) {
+        return android.text.format.DateFormat.format("kk:mm", timestamp).toString();
+    }
 }

app/src/main/java/info/nightscout/androidaps/plugins/general/wear/wearintegration/WatchUpdaterService.java

@@ -1,9 +1,17 @@
 package info.nightscout.androidaps.plugins.general.wear.wearintegration;
 
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Set;
+
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
 import android.content.Context;
 import android.content.Intent;
 import android.content.IntentFilter;
 import android.content.SharedPreferences;
+import android.os.AsyncTask;
 import android.os.BatteryManager;
 import android.os.Bundle;
 import android.os.Handler;
@@ -14,8 +22,11 @@ import android.util.Log;
 
 import com.google.android.gms.common.ConnectionResult;
 import com.google.android.gms.common.api.GoogleApiClient;
+import com.google.android.gms.wearable.CapabilityApi;
+import com.google.android.gms.wearable.CapabilityInfo;
 import com.google.android.gms.wearable.DataMap;
 import com.google.android.gms.wearable.MessageEvent;
+import com.google.android.gms.wearable.Node;
 import com.google.android.gms.wearable.PutDataMapRequest;
 import com.google.android.gms.wearable.PutDataRequest;
 import com.google.android.gms.wearable.Wearable;
@@ -42,21 +53,24 @@ import info.nightscout.androidaps.plugins.iob.iobCobCalculator.IobCobCalculatorP
 import info.nightscout.androidaps.plugins.treatments.Treatment;
 import info.nightscout.androidaps.interfaces.PluginType;
 import info.nightscout.androidaps.interfaces.TreatmentsInterface;
-import info.nightscout.androidaps.plugins.configBuilder.ConfigBuilderPlugin;
 import info.nightscout.androidaps.plugins.aps.loop.LoopPlugin;
+import info.nightscout.androidaps.plugins.configBuilder.ConfigBuilderPlugin;
+import info.nightscout.androidaps.plugins.configBuilder.ProfileFunctions;
 import info.nightscout.androidaps.plugins.general.nsclient.data.NSDeviceStatus;
 import info.nightscout.androidaps.plugins.general.overview.OverviewPlugin;
 import info.nightscout.androidaps.plugins.treatments.TreatmentsPlugin;
 import info.nightscout.androidaps.plugins.general.wear.ActionStringHandler;
 import info.nightscout.androidaps.plugins.general.wear.WearPlugin;
+import info.nightscout.androidaps.plugins.iob.iobCobCalculator.IobCobCalculatorPlugin;
+import info.nightscout.androidaps.plugins.treatments.Treatment;
+import info.nightscout.androidaps.plugins.treatments.TreatmentsPlugin;
 import info.nightscout.androidaps.utils.DecimalFormatter;
 import info.nightscout.androidaps.utils.SP;
 import info.nightscout.androidaps.utils.SafeParse;
 import info.nightscout.androidaps.utils.ToastUtils;
 
-public class WatchUpdaterService extends WearableListenerService implements
+public class WatchUpdaterService extends WearableListenerService implements GoogleApiClient.ConnectionCallbacks, GoogleApiClient.OnConnectionFailedListener {
-        GoogleApiClient.ConnectionCallbacks,
+
-        GoogleApiClient.OnConnectionFailedListener {
     public static final String ACTION_RESEND = WatchUpdaterService.class.getName().concat(".Resend");
     public static final String ACTION_OPEN_SETTINGS = WatchUpdaterService.class.getName().concat(".OpenSettings");
     public static final String ACTION_SEND_STATUS = WatchUpdaterService.class.getName().concat(".SendStatus");
@@ -91,6 +105,17 @@ public class WatchUpdaterService extends WearableListenerService implements
 
     private Handler handler;
 
+    // Phone
+    private static final String CAPABILITY_PHONE_APP = "phone_app_sync_bgs";
+    private static final String MESSAGE_PATH_PHONE = "/phone_message_path";
+    // Wear
+    private static final String CAPABILITY_WEAR_APP = "wear_app_sync_bgs";
+    private static final String MESSAGE_PATH_WEAR = "/wear_message_path";
+    private String mWearNodeId = null;
+    private String localnode = null;
+    private String logPrefix = ""; // "WR: "
+
+
     @Override
     public void onCreate() {
         mPrefs = PreferenceManager.getDefaultSharedPreferences(getApplicationContext());
@@ -112,24 +137,24 @@ public class WatchUpdaterService extends WearableListenerService implements
 
     public void setSettings() {
         wear_integration = WearPlugin.getPlugin().isEnabled(PluginType.GENERAL);
+        // Log.d(TAG, "WR: wear_integration=" + wear_integration);
         if (wear_integration) {
             googleApiConnect();
         }
     }
 
-    public void googleApiConnect() {
+
+    private void googleApiConnect() {
         if (googleApiClient != null && (googleApiClient.isConnected() || googleApiClient.isConnecting())) {
             googleApiClient.disconnect();
         }
-        googleApiClient = new GoogleApiClient.Builder(this)
+        googleApiClient = new GoogleApiClient.Builder(this).addConnectionCallbacks(this)
-                .addConnectionCallbacks(this)
+            .addOnConnectionFailedListener(this).addApi(Wearable.API).build();
-                .addOnConnectionFailedListener(this)
-                .addApi(Wearable.API)
-                .build();
         Wearable.MessageApi.addListener(googleApiClient, this);
         if (googleApiClient.isConnected()) {
-            Log.d("WatchUpdater", "API client is connected");
+            log.debug(logPrefix + "API client is connected");
         } else {
+            // Log.d("WatchUpdater", logPrefix + "API client is not connected and is trying to connect");
             googleApiClient.connect();
         }
     }
@@ -138,6 +163,8 @@ public class WatchUpdaterService extends WearableListenerService implements
     public int onStartCommand(Intent intent, int flags, int startId) {
         String action = intent != null ? intent.getAction() : null;
 
+        // Log.d(TAG, logPrefix + "onStartCommand: " + action);
+
         if (wear_integration) {
             handler.post(() -> {
                 if (googleApiClient.isConnected()) {
@@ -177,13 +204,63 @@ public class WatchUpdaterService extends WearableListenerService implements
     }
 
 
+    private void updateWearSyncBgsCapability(CapabilityInfo capabilityInfo) {
+        Log.d("WatchUpdaterService", logPrefix + "CabilityInfo: " + capabilityInfo);
+        Set<Node> connectedNodes = capabilityInfo.getNodes();
+        mWearNodeId = pickBestNodeId(connectedNodes);
+    }
+
+
+    private String pickBestNodeId(Set<Node> nodes) {
+        String bestNodeId = null;
+        // Find a nearby node or pick one arbitrarily
+        for (Node node : nodes) {
+            if (node.isNearby()) {
+                return node.getId();
+            }
+            bestNodeId = node.getId();
+        }
+        return bestNodeId;
+    }
+
+
     @Override
     public void onConnected(Bundle connectionHint) {
+        CapabilityApi.CapabilityListener capabilityListener = capabilityInfo -> {
+            updateWearSyncBgsCapability(capabilityInfo);
+            // Log.d(TAG, logPrefix + "onConnected onCapabilityChanged mWearNodeID:" + mWearNodeId);
+            // new CheckWearableConnected().execute();
+        };
+
+        Wearable.CapabilityApi.addCapabilityListener(googleApiClient, capabilityListener, CAPABILITY_WEAR_APP);
         sendData();
     }
 
+
+    @Override
+    public void onPeerConnected(com.google.android.gms.wearable.Node peer) {// KS
+        super.onPeerConnected(peer);
+        String id = peer.getId();
+        String name = peer.getDisplayName();
+        // Log.d(TAG, logPrefix + "onPeerConnected peer name & ID: " + name + "|" + id);
+    }
+
+
+    @Override
+    public void onPeerDisconnected(com.google.android.gms.wearable.Node peer) {// KS
+        super.onPeerDisconnected(peer);
+        String id = peer.getId();
+        String name = peer.getDisplayName();
+        // Log.d(TAG, logPrefix + "onPeerDisconnected peer name & ID: " + name + "|" + id);
+        SharedPreferences sharedPrefs = PreferenceManager.getDefaultSharedPreferences(getApplicationContext());
+    }
+
+
     @Override
     public void onMessageReceived(MessageEvent event) {
+
+        // Log.d(TAG, logPrefix + "onMessageRecieved: " + event);
+
         if (wear_integration) {
             if (event != null && event.getPath().equals(WEARABLE_RESEND_PATH)) {
                 resendData();
@@ -214,6 +291,7 @@ public class WatchUpdaterService extends WearableListenerService implements
     private void sendData() {
 
         BgReading lastBG = DatabaseHelper.lastBg();
+        // Log.d(TAG, logPrefix + "LastBg=" + lastBG);
         if (lastBG != null) {
             GlucoseStatus glucoseStatus = GlucoseStatus.getGlucoseStatusData();
 
@@ -228,18 +306,19 @@ public class WatchUpdaterService extends WearableListenerService implements
                     return;
                 }
 
-                new SendToDataLayerThread(WEARABLE_DATA_PATH, googleApiClient).execute(dataMap);
+                executeTask(new SendToDataLayerThread(WEARABLE_DATA_PATH, googleApiClient), dataMap);
             }
         }
     }
 
+
     private DataMap dataMapSingleBG(BgReading lastBG, GlucoseStatus glucoseStatus) {
         String units = ProfileFunctions.getInstance().getProfileUnits();
 
         Double lowLine = SafeParse.stringToDouble(mPrefs.getString("low_mark", "0"));
         Double highLine = SafeParse.stringToDouble(mPrefs.getString("high_mark", "0"));
 
-        //convert to mg/dl
+        // convert to mg/dl
         if (!units.equals(Constants.MGDL)) {
             lowLine *= Constants.MMOLL_TO_MGDL;
             highLine *= Constants.MMOLL_TO_MGDL;
@@ -287,7 +366,6 @@ public class WatchUpdaterService extends WearableListenerService implements
             deltastring += "+";
         } else {
             deltastring += "-";
-
         }
 
         boolean detailed = SP.getBoolean("wear_detailed_delta", false);
@@ -352,7 +430,7 @@ public class WatchUpdaterService extends WearableListenerService implements
                 }
             }
             entries.putDataMapArrayList("entries", dataMaps);
-            new SendToDataLayerThread(WEARABLE_DATA_PATH, googleApiClient).execute(entries);
+            executeTask(new SendToDataLayerThread(WEARABLE_DATA_PATH, googleApiClient), entries);
         }
         sendPreferences();
         sendBasals();
@@ -501,7 +579,7 @@ public class WatchUpdaterService extends WearableListenerService implements
         dm.putDataMapArrayList("boluses", boluses);
         dm.putDataMapArrayList("predictions", predictions);
 
-        new SendToDataLayerThread(BASAL_DATA_PATH, googleApiClient).execute(dm);
+        executeTask(new SendToDataLayerThread(BASAL_DATA_PATH, googleApiClient), dm);
     }
 
     private DataMap tempDatamap(long startTime, double startBasal, long to, double toBasal, double amount) {
@@ -548,6 +626,7 @@ public class WatchUpdaterService extends WearableListenerService implements
             dataMapRequest.getDataMap().putLong("timestamp", System.currentTimeMillis());
             dataMapRequest.getDataMap().putString("openSettings", "openSettings");
             PutDataRequest putDataRequest = dataMapRequest.asPutDataRequest();
+            debugData("sendNotification", putDataRequest);
             Wearable.DataApi.putDataItem(googleApiClient, putDataRequest);
         } else {
             Log.e("OpenSettings", "No connection to wearable available!");
@@ -563,6 +642,7 @@ public class WatchUpdaterService extends WearableListenerService implements
             dataMapRequest.getDataMap().putString("progressstatus", status);
             dataMapRequest.getDataMap().putInt("progresspercent", progresspercent);
             PutDataRequest putDataRequest = dataMapRequest.asPutDataRequest();
+            debugData("sendBolusProgress", putDataRequest);
             Wearable.DataApi.putDataItem(googleApiClient, putDataRequest);
         } else {
             Log.e("BolusProgress", "No connection to wearable available!");
@@ -582,6 +662,7 @@ public class WatchUpdaterService extends WearableListenerService implements
             log.debug("Requesting confirmation from wear: " + actionstring);
 
             PutDataRequest putDataRequest = dataMapRequest.asPutDataRequest();
+            debugData("sendActionConfirmationRequest", putDataRequest);
             Wearable.DataApi.putDataItem(googleApiClient, putDataRequest);
         } else {
             Log.e("confirmationRequest", "No connection to wearable available!");
@@ -601,6 +682,7 @@ public class WatchUpdaterService extends WearableListenerService implements
             log.debug("Requesting confirmation from wear: " + actionstring);
 
             PutDataRequest putDataRequest = dataMapRequest.asPutDataRequest();
+            debugData("sendChangeConfirmationRequest", putDataRequest);
             Wearable.DataApi.putDataItem(googleApiClient, putDataRequest);
         } else {
             Log.e("changeConfirmRequest", "No connection to wearable available!");
@@ -618,9 +700,10 @@ public class WatchUpdaterService extends WearableListenerService implements
             log.debug("Canceling notification on wear: " + actionstring);
 
             PutDataRequest putDataRequest = dataMapRequest.asPutDataRequest();
+            debugData("sendCancelNotificationRequest", putDataRequest);
             Wearable.DataApi.putDataItem(googleApiClient, putDataRequest);
         } else {
-            Log.e("cancelNotificationRequest", "No connection to wearable available!");
+            Log.e("cancelNotificationReq", "No connection to wearable available!");
         }
     }
 
@@ -683,6 +766,7 @@ public class WatchUpdaterService extends WearableListenerService implements
             dataMapRequest.getDataMap().putBoolean("showBgi", mPrefs.getBoolean("wear_showbgi", false));
             dataMapRequest.getDataMap().putInt("batteryLevel", (phoneBattery >= 30) ? 1 : 0);
             PutDataRequest putDataRequest = dataMapRequest.asPutDataRequest();
+            debugData("sendStatus", putDataRequest);
             Wearable.DataApi.putDataItem(googleApiClient, putDataRequest);
         } else {
             Log.e("SendStatus", "No connection to wearable available!");
@@ -699,12 +783,29 @@ public class WatchUpdaterService extends WearableListenerService implements
             dataMapRequest.getDataMap().putLong("timestamp", System.currentTimeMillis());
             dataMapRequest.getDataMap().putBoolean("wearcontrol", wearcontrol);
             PutDataRequest putDataRequest = dataMapRequest.asPutDataRequest();
+            debugData("sendPreferences", putDataRequest);
             Wearable.DataApi.putDataItem(googleApiClient, putDataRequest);
         } else {
             Log.e("SendStatus", "No connection to wearable available!");
         }
     }
 
+
+    private void debugData(String source, Object data) {
+        // Log.d(TAG, "WR: " + source + " " + data);
+    }
+
+
+    private void executeTask(AsyncTask task, DataMap... parameters) {
+        task.executeOnExecutor(AsyncTask.THREAD_POOL_EXECUTOR, (Object[])parameters);
+        // if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB) {
+        // task.executeOnExecutor(AsyncTask.THREAD_POOL_EXECUTOR);
+        // } else {
+        // task.execute();
+        // }
+    }
+
+
     @NonNull
     private String generateStatusString(Profile profile, String currentBasal, String iobSum, String iobDetail, String bgiString) {
 

app/src/main/res/values/wear.xml

@@ -0,0 +1,18 @@
+<?xml version="1.0" encoding="utf-8"?><!--
+  Copyright 2015 Google Inc. All rights reserved.
+  Licensed under the Apache License, Version 2.0 (the "License");
+  you may not use this file except in compliance with the License.
+  You may obtain a copy of the License at
+       http://www.apache.org/licenses/LICENSE-2.0
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+  -->
+
+<resources>
+    <string-array name="android_wear_capabilities">
+        <item>phone_app_sync_bgs</item>
+    </string-array>
+</resources>

wear/build.gradle

@@ -2,6 +2,7 @@ apply plugin: 'com.android.application'
 
 ext {
     wearableVersion = "2.0.1"
+    playServicesWearable = "10.2.1"
 }
 
 def generateGitBuild = { ->
@@ -93,7 +94,7 @@ dependencies {
     //compile "com.ustwo.android:clockwise-wearable:1.0.2"
     compileOnly "com.google.android.wearable:wearable:${wearableVersion}"
     implementation "com.google.android.support:wearable:${wearableVersion}"
-    implementation "com.google.android.gms:play-services-wearable:7.3.0"
+    implementation "com.google.android.gms:play-services-wearable:${playServicesWearable}"
     implementation(name:"ustwo-clockwise-debug", ext:"aar")
     implementation "com.android.support:support-v4:27.0.1"
     implementation 'com.android.support:wear:27.0.1'

wear/src/main/AndroidManifest.xml

@@ -168,9 +168,66 @@
                 <category android:name="com.google.android.wearable.watchface.category.WATCH_FACE" />
             </intent-filter>
         </service>
+
         <service android:name=".data.ListenerService">
             <intent-filter>
-                <action android:name="com.google.android.gms.wearable.BIND_LISTENER" />
+                <!-- <action android:name="com.google.android.gms.wearable.BIND_LISTENER" /> -->
+                <!-- listeners receive events that match the action and data filters -->
+                <action android:name="com.google.android.gms.wearable.CAPABILITY_CHANGED" />
+                <action android:name="com.google.android.gms.wearable.DATA_CHANGED" />
+
+                <data
+                    android:scheme="wear"
+                    android:host="*"
+                    android:pathPrefix="/nightscout_watch_data" />
+                <data
+                    android:scheme="wear"
+                    android:host="*"
+                    android:pathPrefix="/nightscout_watch_data_resend" />
+                <data
+                    android:scheme="wear"
+                    android:host="*"
+                    android:pathPrefix="/nightscout_watch_cancel_bolus" />
+                <data
+                    android:scheme="wear"
+                    android:host="*"
+                    android:pathPrefix="/nightscout_watch_confirmactionstring" />
+                <data
+                    android:scheme="wear"
+                    android:host="*"
+                    android:pathPrefix="/nightscout_watch_initiateactionstring" />
+                <data
+                    android:scheme="wear"
+                    android:host="*"
+                    android:pathPrefix="/openwearsettings" />
+                <data
+                    android:scheme="wear"
+                    android:host="*"
+                    android:pathPrefix="/sendstatustowear" />
+                <data
+                    android:scheme="wear"
+                    android:host="*"
+                    android:pathPrefix="/sendpreferencestowear" />
+                <data
+                    android:scheme="wear"
+                    android:host="*"
+                    android:pathPrefix="/nightscout_watch_basal" />
+                <data
+                    android:scheme="wear"
+                    android:host="*"
+                    android:pathPrefix="/nightscout_watch_bolusprogress" />
+                <data
+                    android:scheme="wear"
+                    android:host="*"
+                    android:pathPrefix="/nightscout_watch_actionconfirmationrequest" />
+                <data
+                    android:scheme="wear"
+                    android:host="*"
+                    android:pathPrefix="/nightscout_watch_changeconfirmationrequest" />
+                <data
+                    android:scheme="wear"
+                    android:host="*"
+                    android:pathPrefix="/nightscout_watch_cancelnotificationrequest" />
             </intent-filter>
         </service>
 

wear/src/main/java/info/nightscout/androidaps/data/ListenerService.java

@@ -1,5 +1,8 @@
 package info.nightscout.androidaps.data;
 
+import java.util.Set;
+import java.util.concurrent.TimeUnit;
+
 import android.app.Notification;
 import android.app.NotificationManager;
 import android.app.PendingIntent;
@@ -7,16 +10,24 @@ import android.content.Context;
 import android.content.Intent;
 import android.content.SharedPreferences;
 import android.os.AsyncTask;
+import android.os.Build;
 import android.os.Bundle;
 import android.os.SystemClock;
 import android.preference.PreferenceManager;
 import android.support.v4.content.LocalBroadcastManager;
 import android.support.v4.app.NotificationCompat;
 import android.support.v4.app.NotificationManagerCompat;
+import android.support.v4.content.LocalBroadcastManager;
+import android.util.Log;
 
 
 import com.google.android.gms.common.ConnectionResult;
 import com.google.android.gms.common.api.GoogleApiClient;
+import com.google.android.gms.common.api.PendingResult;
+import com.google.android.gms.common.api.ResultCallback;
+import com.google.android.gms.wearable.CapabilityApi;
+import com.google.android.gms.wearable.CapabilityInfo;
+import com.google.android.gms.wearable.ChannelApi;
 import com.google.android.gms.wearable.DataEvent;
 import com.google.android.gms.wearable.DataEventBuffer;
 import com.google.android.gms.wearable.DataMap;
@@ -33,12 +44,15 @@ import info.nightscout.androidaps.R;
 import info.nightscout.androidaps.interaction.actions.AcceptActivity;
 import info.nightscout.androidaps.interaction.actions.CPPActivity;
 import info.nightscout.androidaps.interaction.utils.SafeParse;
+import info.nightscout.androidaps.interaction.utils.WearUtil;
+
 
 /**
  * Created by emmablack on 12/26/14.
  */
 public class ListenerService extends WearableListenerService implements GoogleApiClient.ConnectionCallbacks,
-        GoogleApiClient.OnConnectionFailedListener {
+        GoogleApiClient.OnConnectionFailedListener, ChannelApi.ChannelListener {
+
     private static final String WEARABLE_DATA_PATH = "/nightscout_watch_data";
     private static final String WEARABLE_RESEND_PATH = "/nightscout_watch_data_resend";
     private static final String WEARABLE_CANCELBOLUS_PATH = "/nightscout_watch_cancel_bolus";
@@ -67,49 +81,164 @@ public class ListenerService extends WearableListenerService implements GoogleAp
 
 
     private static final String ACTION_RESEND_BULK = "com.dexdrip.stephenblack.nightwatch.RESEND_BULK_DATA";
+
     GoogleApiClient googleApiClient;
     private long lastRequest = 0;
     private DismissThread confirmThread;
     private DismissThread bolusprogressThread;
+    private static final String TAG = "ListenerService";
 
+    private DataRequester mDataRequester = null;
+    private static final int GET_CAPABILITIES_TIMEOUT_MS = 5000;
+
+    // Phone
+    private static final String CAPABILITY_PHONE_APP = "phone_app_sync_bgs";
+    private static final String MESSAGE_PATH_PHONE = "/phone_message_path";
+    // Wear
+    private static final String CAPABILITY_WEAR_APP = "wear_app_sync_bgs";
+    private static final String MESSAGE_PATH_WEAR = "/wear_message_path";
+    private String mPhoneNodeId = null;
+    private String localnode = null;
+    private String logPrefix = ""; // "WR: "
 
     public class DataRequester extends AsyncTask<Void, Void, Void> {
         Context mContext;
+        String path;
+        byte[] payload;
 
-        DataRequester(Context context) {
+
-            mContext = context;
+        DataRequester(Context context, String thispath, byte[] thispayload) {
+            path = thispath;
+            payload = thispayload;
+            // Log.d(TAG, logPrefix + "DataRequester DataRequester: " + thispath + " lastRequest:" + lastRequest);
         }
 
+
+
         @Override
         protected Void doInBackground(Void... params) {
-            if (googleApiClient.isConnected()) {
+            // Log.d(TAG, logPrefix + "DataRequester: doInBack: " + params);
-                if (System.currentTimeMillis() - lastRequest > 20 * 1000) { // enforce 20-second debounce period
-                    lastRequest = System.currentTimeMillis();
 
-                    NodeApi.GetConnectedNodesResult nodes =
+            try {
-                            Wearable.NodeApi.getConnectedNodes(googleApiClient).await();
+
-                    for (Node node : nodes.getNodes()) {
+                forceGoogleApiConnect();
-                        Wearable.MessageApi.sendMessage(googleApiClient, node.getId(), WEARABLE_RESEND_PATH, null);
+                DataMap datamap;
-                    }
+
+                if (isCancelled()) {
+                    Log.d(TAG, "doInBackground CANCELLED programmatically");
+                    return null;
                 }
-            } else {
+
-                googleApiClient.blockingConnect(15, TimeUnit.SECONDS);
+                if (googleApiClient != null) {
-                if (googleApiClient.isConnected()) {
+                    if (!googleApiClient.isConnected())
-                    if (System.currentTimeMillis() - lastRequest > 20 * 1000) { // enforce 20-second debounce period
+                        googleApiClient.blockingConnect(15, TimeUnit.SECONDS);
+                }
+
+                // this code might not be needed in this way, but we need to see that later
+                if ((googleApiClient != null) && (googleApiClient.isConnected())) {
+                    if ((System.currentTimeMillis() - lastRequest > 20 * 1000)) {
+
+                        // enforce 20-second debounce period
                         lastRequest = System.currentTimeMillis();
 
-                        NodeApi.GetConnectedNodesResult nodes =
+                        // NodeApi.GetConnectedNodesResult nodes =
-                                Wearable.NodeApi.getConnectedNodes(googleApiClient).await();
+                        // Wearable.NodeApi.getConnectedNodes(googleApiClient).await();
-                        for (Node node : nodes.getNodes()) {
+                        if (localnode == null || (localnode != null && localnode.isEmpty()))
-                            Wearable.MessageApi.sendMessage(googleApiClient, node.getId(), WEARABLE_RESEND_PATH, null);
+                            setLocalNodeName();
+
+                        CapabilityInfo capabilityInfo = getCapabilities();
+
+                        int count = 0;
+                        Node phoneNode = null;
+
+                        if (capabilityInfo != null) {
+                            phoneNode = updatePhoneSyncBgsCapability(capabilityInfo);
+                            count = capabilityInfo.getNodes().size();
                         }
+
+                        Log.d(TAG, "doInBackground connected.  CapabilityApi.GetCapabilityResult mPhoneNodeID="
+                            + (phoneNode != null ? phoneNode.getId() : "") + " count=" + count + " localnode="
+                            + localnode);// KS
+
+                        if (count > 0) {
+
+                            for (Node node : capabilityInfo.getNodes()) {
+
+                                // Log.d(TAG, "doInBackground path: " + path);
+
+                                switch (path) {
+                                // simple send as is payloads
+
+                                    case WEARABLE_RESEND_PATH:
+                                        Wearable.MessageApi.sendMessage(googleApiClient, node.getId(),
+                                            WEARABLE_RESEND_PATH, null);
+                                        break;
+                                    case WEARABLE_DATA_PATH:
+                                    case WEARABLE_CANCELBOLUS_PATH:
+                                    case WEARABLE_CONFIRM_ACTIONSTRING_PATH:
+                                    case WEARABLE_INITIATE_ACTIONSTRING_PATH:
+                                    case OPEN_SETTINGS:
+                                    case NEW_STATUS_PATH:
+                                    case NEW_PREFERENCES_PATH:
+                                    case BASAL_DATA_PATH:
+                                    case BOLUS_PROGRESS_PATH:
+                                    case ACTION_CONFIRMATION_REQUEST_PATH:
+                                    case NEW_CHANGECONFIRMATIONREQUEST_PATH:
+                                    case ACTION_CANCELNOTIFICATION_REQUEST_PATH: {
+                                        Log.w(TAG, logPrefix + "Unhandled path");
+                                        // sendMessagePayload(node, path, path, payload);
+                                    }
+
+                                    default:// SYNC_ALL_DATA
+                                        // this fall through is messy and non-deterministic for new paths
+
+                                }
+                            }
+                        } else {
+
+                            Log.d(TAG, logPrefix + "doInBackground connected but getConnectedNodes returns 0.");
+
+                        }
+                    } else {
+                        // no resend
+                        Log.d(TAG, logPrefix + "Inside the timeout, will not be executed");
+
+                    }
+                } else {
+                    Log.d(TAG, logPrefix + "Not connected for sending: api "
+                        + ((googleApiClient == null) ? "is NULL!" : "not null"));
+                    if (googleApiClient != null) {
+                        googleApiClient.connect();
+                    } else {
+                        googleApiConnect();
                     }
                 }
+
+            } catch (Exception ex) {
+                Log.e(TAG, logPrefix + "Error executing DataRequester in background. Exception: " + ex.getMessage());
             }
+
             return null;
         }
     }
 
+
+    public CapabilityInfo getCapabilities() {
+
+        CapabilityApi.GetCapabilityResult capabilityResult = Wearable.CapabilityApi.getCapability(googleApiClient,
+            CAPABILITY_PHONE_APP, CapabilityApi.FILTER_REACHABLE).await(GET_CAPABILITIES_TIMEOUT_MS,
+            TimeUnit.MILLISECONDS);
+
+        if (!capabilityResult.getStatus().isSuccess()) {
+            Log.e(TAG, logPrefix + "doInBackground Failed to get capabilities, status: "
+                + capabilityResult.getStatus().getStatusMessage());
+            return null;
+        }
+
+        return capabilityResult.getCapability();
+
+    }
+
     public class BolusCancelTask extends AsyncTask<Void, Void, Void> {
         Context mContext;
 
@@ -119,6 +248,8 @@ public class ListenerService extends WearableListenerService implements GoogleAp
 
         @Override
         protected Void doInBackground(Void... params) {
+            // Log.d(TAG, logPrefix + "BolusCancelTask: doInBack: " + params);
+
             if (googleApiClient.isConnected()) {
                 NodeApi.GetConnectedNodesResult nodes =
                         Wearable.NodeApi.getConnectedNodes(googleApiClient).await();
@@ -154,6 +285,9 @@ public class ListenerService extends WearableListenerService implements GoogleAp
 
         @Override
         protected Void doInBackground(Void... params) {
+
+            forceGoogleApiConnect();
+
             if (googleApiClient.isConnected()) {
                 NodeApi.GetConnectedNodesResult nodes =
                         Wearable.NodeApi.getConnectedNodes(googleApiClient).await();
@@ -176,7 +310,7 @@ public class ListenerService extends WearableListenerService implements GoogleAp
     }
 
     public void requestData() {
-        new DataRequester(this).execute();
+        sendData(WEARABLE_RESEND_PATH, null);
     }
 
     public void cancelBolus() {
@@ -191,7 +325,73 @@ public class ListenerService extends WearableListenerService implements GoogleAp
         new MessageActionTask(this, WEARABLE_INITIATE_ACTIONSTRING_PATH, actionstring).execute();
     }
 
-    public void googleApiConnect() {
+
+    private Node updatePhoneSyncBgsCapability(CapabilityInfo capabilityInfo) {
+        // Log.d(TAG, "CapabilityInfo: " + capabilityInfo);
+
+        Set<Node> connectedNodes = capabilityInfo.getNodes();
+        return pickBestNode(connectedNodes);
+        // mPhoneNodeId = pickBestNodeId(connectedNodes);
+    }
+
+
+    private Node pickBestNode(Set<Node> nodes) {
+        Node bestNode = null;
+        // Find a nearby node or pick one arbitrarily
+        for (Node node : nodes) {
+            if (node.isNearby()) {
+                return node;
+            }
+            bestNode = node;
+        }
+        return bestNode;
+    }
+
+
+    private synchronized void sendData(String path, byte[] payload) {
+        // Log.d(TAG, "WR: sendData: path: " + path + ", payload=" + payload);
+
+        if (path == null)
+            return;
+        if (mDataRequester != null) {
+            // Log.d(TAG, logPrefix + "sendData DataRequester != null lastRequest:" +
+            // WearUtil.dateTimeText(lastRequest));
+            if (mDataRequester.getStatus() != AsyncTask.Status.FINISHED) {
+                // Log.d(TAG, logPrefix + "sendData Should be canceled?  Let run 'til finished.");
+                // mDataRequester.cancel(true);
+            }
+        }
+
+        Log.d(TAG, logPrefix + "sendData: execute lastRequest:" + WearUtil.dateTimeText(lastRequest));
+        mDataRequester = (DataRequester)new DataRequester(this, path, payload).execute();
+        // executeTask(mDataRequester);
+
+        // if (Build.VERSION.SDK_INT < Build.VERSION_CODES.M) {
+        // Log.d(TAG, "sendData SDK < M call execute lastRequest:" + WearUtil.dateTimeText(lastRequest));
+        // mDataRequester = (DataRequester) new DataRequester(this, path, payload).execute();
+        // } else {
+        // Log.d(TAG, "sendData SDK >= M call executeOnExecutor lastRequest:" + WearUtil.dateTimeText(lastRequest));
+        // // TODO xdrip executor
+        // mDataRequester = (DataRequester) new DataRequester(this, path, payload).executeOnExecutor(xdrip.executor);
+        // }
+    }
+
+
+    private void googleApiConnect() {
+        if (googleApiClient != null) {
+            // Remove old listener(s)
+            try {
+                Wearable.ChannelApi.removeListener(googleApiClient, this);
+            } catch (Exception e) {
+                //
+            }
+            try {
+                Wearable.MessageApi.removeListener(googleApiClient, this);
+            } catch (Exception e) {
+                //
+            }
+        }
+
         googleApiClient = new GoogleApiClient.Builder(this)
                 .addConnectionCallbacks(this)
                 .addOnConnectionFailedListener(this)
@@ -201,8 +401,25 @@ public class ListenerService extends WearableListenerService implements GoogleAp
     }
 
 
+
+    private void forceGoogleApiConnect() {
+        if ((googleApiClient != null && !googleApiClient.isConnected() && !googleApiClient.isConnecting()) || googleApiClient == null) {
+            try {
+                Log.d(TAG, "forceGoogleApiConnect: forcing google api reconnection");
+                googleApiConnect();
+                Thread.sleep(2000);
+            } catch (InterruptedException e) {
+                //
+            }
+        }
+    }
+
+
     @Override
     public int onStartCommand(Intent intent, int flags, int startId) {
+
+        // Log.d(TAG, logPrefix + "onStartCommand: Intent: " + intent);
+
         if (intent != null && ACTION_RESEND.equals(intent.getAction())) {
             googleApiConnect();
             requestData();
@@ -256,13 +473,16 @@ public class ListenerService extends WearableListenerService implements GoogleAp
     public void onDataChanged(DataEventBuffer dataEvents) {
 
         DataMap dataMap;
+        // Log.d(TAG, logPrefix + "onDataChanged: DataEvents=" + dataEvents);
 
         for (DataEvent event : dataEvents) {
 
             if (event.getType() == DataEvent.TYPE_CHANGED) {
 
-
                 String path = event.getDataItem().getUri().getPath();
+
+                //Log.d(TAG, "WR: onDataChanged: Path: " + path + ", EventDataItem=" + event.getDataItem());
+
                 if (path.equals(OPEN_SETTINGS)) {
                     Intent intent = new Intent(this, AAPSPreferences.class);
                     intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
@@ -480,6 +700,21 @@ public class ListenerService extends WearableListenerService implements GoogleAp
 
     @Override
     public void onConnected(Bundle bundle) {
+        // Log.d(TAG, logPrefix + "onConnected call requestData");
+
+        CapabilityApi.CapabilityListener capabilityListener = new CapabilityApi.CapabilityListener() {
+
+            @Override
+            public void onCapabilityChanged(CapabilityInfo capabilityInfo) {
+                updatePhoneSyncBgsCapability(capabilityInfo);
+                Log.d(TAG, logPrefix + "onConnected onCapabilityChanged mPhoneNodeID:" + mPhoneNodeId
+                    + ", Capability: " + capabilityInfo);
+            }
+        };
+
+        Wearable.CapabilityApi.addCapabilityListener(googleApiClient, capabilityListener, CAPABILITY_PHONE_APP);
+
+        Wearable.ChannelApi.addListener(googleApiClient, this);
         requestData();
     }
 
@@ -493,14 +728,38 @@ public class ListenerService extends WearableListenerService implements GoogleAp
 
     }
 
+
+    private void setLocalNodeName() {
+        forceGoogleApiConnect();
+        PendingResult<NodeApi.GetLocalNodeResult> result = Wearable.NodeApi.getLocalNode(googleApiClient);
+        result.setResultCallback(new ResultCallback<NodeApi.GetLocalNodeResult>() {
+
+            @Override
+            public void onResult(NodeApi.GetLocalNodeResult getLocalNodeResult) {
+                if (!getLocalNodeResult.getStatus().isSuccess()) {
+                    Log.e(TAG, "ERROR: failed to getLocalNode Status="
+                        + getLocalNodeResult.getStatus().getStatusMessage());
+                } else {
+                    Log.d(TAG, "getLocalNode Status=: " + getLocalNodeResult.getStatus().getStatusMessage());
+                    Node getnode = getLocalNodeResult.getNode();
+                    localnode = getnode != null ? getnode.getDisplayName() + "|" + getnode.getId() : "";
+                    Log.d(TAG, "setLocalNodeName.  localnode=" + localnode);
+                }
+            }
+        });
+    }
+
+
     @Override
     public void onDestroy() {
         super.onDestroy();
         if (googleApiClient != null && googleApiClient.isConnected()) {
             googleApiClient.disconnect();
         }
+
         if (googleApiClient != null) {
             Wearable.MessageApi.removeListener(googleApiClient, this);
+            Wearable.ChannelApi.removeListener(googleApiClient, this);
         }
-    }
+  }
 }

wear/src/main/java/info/nightscout/androidaps/interaction/utils/WearUtil.java

@@ -0,0 +1,19 @@
+package info.nightscout.androidaps.interaction.utils;
+
+import java.time.LocalDateTime;
+import java.util.Date;
+
+/**
+ * Created by andy on 3/5/19.
+ */
+
+public class WearUtil {
+
+
+    public static String dateTimeText(long timeInMs) {
+        Date d = new Date(timeInMs);
+        return "" + d.getDay() + "." + d.getMonth() + "." + d.getYear() + " " + d.getHours() + ":" + d.getMinutes() + ":" + d.getSeconds();
+    }
+
+
+}

wear/src/main/res/values/wear.xml

@@ -0,0 +1,18 @@
+<?xml version="1.0" encoding="utf-8"?><!--
+  Copyright 2015 Google Inc. All rights reserved.
+  Licensed under the Apache License, Version 2.0 (the "License");
+  you may not use this file except in compliance with the License.
+  You may obtain a copy of the License at
+       http://www.apache.org/licenses/LICENSE-2.0
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+  -->
+
+<resources>
+    <string-array name="android_wear_capabilities">
+        <item>phone_app_sync_bgs</item>
+    </string-array>
+</resources>