WearListenerService onDataChanged weird behavior

Question

I want to do bi-directional data transfer between Android Wear and Handheld. Everything seems good, except running onDataChanged on Handheld. It only starts when I connect the USB cable connected to the PC. Therefore, I do not understand why this is happening.

Here is my code:

WearListenerService on Handheld:

import android.content.Intent; import android.os.Bundle; import android.support.v4.content.LocalBroadcastManager; import com.google.android.gms.common.ConnectionResult; import com.google.android.gms.common.api.GoogleApiClient; import com.google.android.gms.wearable.DataApi; import com.google.android.gms.wearable.DataEvent; import com.google.android.gms.wearable.DataEventBuffer; import com.google.android.gms.wearable.DataMap; import com.google.android.gms.wearable.DataMapItem; import com.google.android.gms.wearable.Node; import com.google.android.gms.wearable.NodeApi; import com.google.android.gms.wearable.PutDataMapRequest; import com.google.android.gms.wearable.PutDataRequest; import com.google.android.gms.wearable.Wearable; import com.google.android.gms.wearable.WearableListenerService; import java.util.List; import ru.orangesoftware.financisto.db.DatabaseAdapter; import ru.orangesoftware.financisto.model.Category; import ru.orangesoftware.financisto.model.CategoryTree; import ru.orangesoftware.financisto.utils.Log; public class WearService extends WearableListenerService implements GoogleApiClient.ConnectionCallbacks, GoogleApiClient.OnConnectionFailedListener { private static final String WEARABLE_DATA_PATH = "/wearable_data"; private static final String HANDHELD_DATA_PATH = "/handheld_data"; private SendToDataLayerThread s; GoogleApiClient googleClient; private DatabaseAdapter db; @Override public void onCreate() { super.onCreate(); Log.d("WearService Created"); db = new DatabaseAdapter(this); db.open(); initGoogleApiClient(); } @Override public void onDataChanged(DataEventBuffer dataEvents) { Log.d("In dataChanged"); DataMap dataMap; for (DataEvent event : dataEvents) { // Check the data type if (event.getType() == DataEvent.TYPE_CHANGED) { // Check the data path String path = event.getDataItem().getUri().getPath(); if (path.equals(HANDHELD_DATA_PATH)) { dataMap = DataMapItem.fromDataItem(event.getDataItem()).getDataMap(); Log.v("Path phone: " + path); Log.v("DataMap received from watch: " + dataMap); Intent messageIntent = new Intent(); messageIntent.setAction(Intent.ACTION_SEND); messageIntent.putExtra("time", System.currentTimeMillis()); messageIntent.putExtra("DataMap", dataMap.toBundle()); LocalBroadcastManager.getInstance(this).sendBroadcast(messageIntent); // Create a DataMap object and send it to the data layer dataMap = new DataMap(); dataMap.putString("Pong", "Pong" + String.valueOf(System.currentTimeMillis())); dataMap.putLong("time", System.currentTimeMillis()); //Requires a new thread to avoid blocking the UI s = new SendToDataLayerThread(WEARABLE_DATA_PATH, dataMap); s.start(); } } } } private void initGoogleApiClient() { // Build a new GoogleApiClient for the the Wearable API Log.d("Initialaizing GoogleClient"); if (googleClient == null) { googleClient = new GoogleApiClient.Builder(this) .addApi(Wearable.API) .addConnectionCallbacks(this) .addOnConnectionFailedListener(this) .build(); } if (!googleClient.isConnected()) { Log.d("Tring to connect to GoogleApi..."); googleClient.connect(); } Log.d("Google Client ID = " + googleClient.toString()); } // Disconnect from the data layer when the Activity stops @Override public void onDestroy() { super.onDestroy(); Log.d("WearService: onDestroy"); if (null != googleClient && googleClient.isConnected()) { googleClient.disconnect(); } if (db != null) { db.close(); } } @Override public void onConnected(Bundle bundle) { Log.d("onConnected entered"); Log.d("GoogleAPI now status:" + googleClient.isConnected()); } @Override public void onConnectionSuspended(int i) { } @Override public void onConnectionFailed(ConnectionResult result) { Log.e("Connection to google api has failed. " + result.getErrorMessage()); } class SendToDataLayerThread extends Thread { String path; DataMap dataMap; // Constructor for sending data objects to the data layer SendToDataLayerThread(String p, DataMap data) { path = p; dataMap = data; } public void run() { NodeApi.GetConnectedNodesResult nodes = Wearable.NodeApi.getConnectedNodes(googleClient).await(); for (Node node : nodes.getNodes()) { // Construct a DataRequest and send over the data layer PutDataMapRequest putDMR = PutDataMapRequest.create(path); putDMR.getDataMap().putAll(dataMap); PutDataRequest request = putDMR.asPutDataRequest(); DataApi.DataItemResult result = Wearable.DataApi.putDataItem(googleClient, request).await(); if (result.getStatus().isSuccess()) { Log.v("DataMap: " + dataMap + " sent to: " + node.getDisplayName() + "; path=" + path); } else { // Log an error Log.v("ERROR: failed to send DataMap"); } } } } } 

WearListenerService on Wear :

 import android.content.Intent; import android.os.Bundle; 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.DataApi; import com.google.android.gms.wearable.DataEvent; import com.google.android.gms.wearable.DataEventBuffer; import com.google.android.gms.wearable.DataMap; import com.google.android.gms.wearable.DataMapItem; import com.google.android.gms.wearable.Node; import com.google.android.gms.wearable.NodeApi; import com.google.android.gms.wearable.PutDataMapRequest; import com.google.android.gms.wearable.PutDataRequest; import com.google.android.gms.wearable.Wearable; import com.google.android.gms.wearable.WearableListenerService; public class ListenerService extends WearableListenerService implements GoogleApiClient.ConnectionCallbacks, GoogleApiClient.OnConnectionFailedListener { private static final String WEARABLE_DATA_PATH = "/wearable_data"; private static final String HANDHELD_DATA_PATH = "/handheld_data"; GoogleApiClient googleClient; private SendToDataLayerThread s; @Override public void onDataChanged(DataEventBuffer dataEvents) { Log.d("In dataChanged"); DataMap dataMap; for (DataEvent event : dataEvents) { // Check the data type if (event.getType() == DataEvent.TYPE_CHANGED) { // Check the data path String path = event.getDataItem().getUri().getPath(); Log.d("DataChanged: " + "path = " + path); if (path.equals(WEARABLE_DATA_PATH)) { dataMap = DataMapItem.fromDataItem(event.getDataItem()).getDataMap(); Log.d("DataChanged: " + "dataMap received on watch: " + dataMap); } } } } private void initGoogleApiClient() { if (googleClient == null) { Log.d("Building google client id..."); googleClient = new GoogleApiClient.Builder(this) .addApi(Wearable.API) .addConnectionCallbacks(this) .addOnConnectionFailedListener(this) .build(); Log.d("Google client id = " + googleClient.toString()); } if (!googleClient.isConnected()) { googleClient.connect(); } Log.d("Google Client ID = " + googleClient.toString()); } // Placeholders for required connection callbacks @Override public void onConnectionSuspended(int cause) { } @Override public void onConnected(Bundle connectionHint) { Log.v("OnConnected entered"); } @Override public void onConnectionFailed(ConnectionResult connectionResult) { } // Connect to the data layer when the Activity starts @Override public void onCreate() { super.onCreate(); initGoogleApiClient(); } // Disconnect from the data layer when the Activity stops @Override public void onDestroy() { if (null != googleClient && googleClient.isConnected()) { Log.d("onDestroy: Disconnecting googleClient"); googleClient.disconnect(); } super.onDestroy(); } @Override public int onStartCommand(Intent intent, int flags, int startid) { Log.d("onStartCommand: Service was started."); // Create a DataMap object and send it to the data layer DataMap dataMap = new DataMap(); dataMap.putString("ping", "ping" + String.valueOf(System.currentTimeMillis())); dataMap.putLong("time", System.currentTimeMillis()); //Requires a new thread to avoid blocking the UI s = new SendToDataLayerThread(HANDHELD_DATA_PATH, dataMap); s.start(); return super.onStartCommand(intent, flags, startid); } class SendToDataLayerThread extends Thread { String path; DataMap dataMap; // Constructor for sending data objects to the data layer SendToDataLayerThread(String p, DataMap data) { path = p; dataMap = data; } public void run() { NodeApi.GetConnectedNodesResult nodes = Wearable.NodeApi.getConnectedNodes(googleClient).await(); for (Node node : nodes.getNodes()) { final Node node2 = node; // Construct a DataRequest and send over the data layer PutDataMapRequest putDMR = PutDataMapRequest.create(path); putDMR.getDataMap().putAll(dataMap); PutDataRequest request = putDMR.asPutDataRequest(); PendingResult<DataApi.DataItemResult> pendingResult = Wearable.DataApi.putDataItem(googleClient, request); pendingResult.setResultCallback(new ResultCallback<DataApi.DataItemResult>() { @Override public void onResult(DataApi.DataItemResult dataItemResult) { if (dataItemResult.getStatus().isSuccess()) { Log.v("DataMap: " + dataMap + " sent to: " + node2.getDisplayName()); } else { // Log an error Log.v("ERROR: failed to send DataMap"); } } }); } } } } 

The main activities of both Handheld and Wear are simply launching services. Data path: 1) Serves to transfer data to the service. onDataChanged for wear caused as it should 2) Manual onDataChanged triggers only after disconnecting or connecting the USB cable. Handheld sends data for wear. 3) onDataChanged triggers during wear, as they should, and receive data.

Additional Information. Manifest Handheld:

 <?xml version="1.0" encoding="utf-8"?> <manifest package="ru.orangesoftware.financisto" xmlns:android="http://schemas.android.com/apk/res/android" android:installLocation="internalOnly"> <supports-screens android:anyDensity="true" android:largeScreens="true" android:normalScreens="true" android:resizeable="true" android:smallScreens="true"/> <uses-feature android:name="android.hardware.touchscreen" android:required="false"/> <uses-feature android:name="android.hardware.camera" android:required="false"/> <uses-feature android:name="android.hardware.location" android:required="false"/> <uses-feature android:name="android.hardware.location.network" android:required="false"/> <uses-feature android:name="android.hardware.location.gps" android:required="false"/> <uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION"/> <uses-permission android:name="android.permission.ACCESS_FINE_LOCATION"/> <uses-permission android:name="android.permission.CAMERA"/> <uses-permission android:name="android.permission.INTERNET"/> <uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED"/> <uses-permission android:name="android.permission.VIBRATE"/> <uses-permission android:name="android.permission.WAKE_LOCK"/> <uses-permission android:name="com.android.launcher.permission.INSTALL_SHORTCUT"/> <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/> <uses-permission android:name="android.permission.GET_ACCOUNTS"/> <uses-permission android:name="android.permission.USE_CREDENTIALS"/> <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE"/> <application android:allowBackup="true" android:description="@string/app_description" android:icon="@drawable/icon" android:label="@string/app_name" android:theme="@android:style/Theme.DeviceDefault"> <uses-library android:name="com.google.android.maps" android:required="false"/> <meta-data android:name="com.google.android.gms.version" android:value="@integer/google_play_services_version"/> <activity android:name=".activity.MainActivity" android:configChanges="orientation|keyboardHidden" android:label="@string/app_name" android:taskAffinity=".MainActivity"> <intent-filter> <action android:name="android.intent.action.MAIN"/> <category android:name="android.intent.category.LAUNCHER"/> </intent-filter> </activity> <service android:name=".service.WearService"> <intent-filter> <action android:name="com.google.android.gms.wearable.BIND_LISTENER"/> </intent-filter> </service> </application> </manifest> 

Clothing Manifest:

 <?xml version="1.0" encoding="utf-8"?> <manifest package="ru.orangesoftware.financisto" xmlns:android="http://schemas.android.com/apk/res/android"> <uses-feature android:name="android.hardware.type.watch"/> <application android:allowBackup="true" android:icon="@mipmap/ic_launcher" android:label="@string/app_name" android:supportsRtl="true" android:theme="@android:style/Theme.DeviceDefault"> <meta-data android:name="com.google.android.gms.version" android:value="@integer/google_play_services_version"/> <activity android:name=".MainWearActivity" android:label="@string/app_name"> <intent-filter> <action android:name="android.intent.action.MAIN"/> <category android:name="android.intent.category.LAUNCHER"/> </intent-filter> </activity> <service android:name="ru.orangesoftware.financisto.ListenerService" android:enabled="true"> <intent-filter> <action android:name="com.google.android.gms.wearable.BIND_LISTENER"/> </intent-filter> </service> </application> </manifest> 

Gradle Handheld :

 buildscript { repositories { mavenCentral() } dependencies { classpath 'com.android.tools.build:gradle:1.3.0' classpath 'com.neenbedankt.gradle.plugins:android-apt:1.4' } } apply plugin: 'com.android.application' apply plugin: 'com.neenbedankt.android-apt' repositories { maven { url "http://repo.commonsware.com.s3.amazonaws.com" } maven { url "https://repository-achartengine.forge.cloudbees.com/snapshot/" } mavenCentral() } android { compileSdkVersion 22 buildToolsVersion "23.0.2" defaultConfig { applicationId "ru.orangesoftware.financisto" minSdkVersion 19 targetSdkVersion 22 versionCode 92 versionName "1.6.8" } buildTypes { release { minifyEnabled false proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.txt' } } packagingOptions { exclude 'META-INF/LICENSE' exclude 'META-INF/LICENSE.txt' exclude 'META-INF/NOTICE' exclude 'META-INF/NOTICE.txt' } } def googlePlayVersion = '8.3.0' dependencies { compile "com.google.android.gms:play-services-base:$googlePlayVersion" compile "com.google.android.gms:play-services-drive:$googlePlayVersion" compile "com.google.android.gms:play-services-wearable:$googlePlayVersion" compile files('libs/dropbox-android-sdk-1.6.1/dropbox-android-sdk-1.6.1.jar') compile files('libs/google-rfc-2445/rfc2445-no-joda.jar') compile 'com.google.code.gson:gson:2.3' compile 'com.commonsware.cwac:wakeful:1.0.1' compile 'org.achartengine:achartengine:1.2.0' compile 'net.sf.trove4j:trove4j:3.0.3' compile 'com.wdullaer:materialdatetimepicker:2.0.0' } 

Gradle Wear :

 apply plugin: 'com.android.application' android { compileSdkVersion 22 buildToolsVersion "23.0.2" defaultConfig { applicationId "ru.orangesoftware.financisto" minSdkVersion 20 targetSdkVersion 22 versionCode 1 versionName "1.0" } buildTypes { release { minifyEnabled false proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro' } } } def googlePlayVersion = '8.3.0' dependencies { compile fileTree(dir: 'libs', include: ['*.jar']) compile 'com.google.android.support:wearable:1.3.0' compile "com.google.android.gms:play-services-wearable:$googlePlayVersion" } 

Login to Handheld after starting the application :

 11-15 12:20:20.616 29043-29043/? D/Financisto: WearService Created [WearService.onCreate:44] 11-15 12:20:20.616 29043-29043/? D/Financisto: Initialaizing GoogleClient [WearService.initGoogleApiClient:94] 11-15 12:20:20.636 29043-29043/? D/Financisto: Tring to connect to GoogleApi... [WearService.initGoogleApiClient:107] 11-15 12:20:20.636 29043-29043/? D/Financisto: Google Client ID = com.google.android.gms.internal.zzmg@4344d5c0 [WearService.initGoogleApiClient:113] 11-15 12:20:21.016 29043-29043/ru.orangesoftware.financisto D/Financisto: onConnected entered [WearService.onConnected:139] 11-15 12:20:21.016 29043-29043/ru.orangesoftware.financisto D/Financisto: GoogleAPI now status:true [WearService.onConnected:140] -------now I send data from watch and unplug usb cable after 30 seconds 11-15 12:24:31.986 29043-29091/? D/Financisto: In dataChanged [WearService.onDataChanged:54] 11-15 12:24:31.986 29043-29091/? V/Financisto: Path phone: /handheld_data [WearService.onDataChanged:68] 11-15 12:24:31.986 29043-29091/? V/Financisto: DataMap received from watch: {time=1447565065308, ping=ping1447565065306} [WearService.onDataChanged:69] 11-15 12:24:32.036 29043-29091/? D/Financisto: In dataChanged [WearService.onDataChanged:54] 11-15 12:24:32.046 29043-1493/? V/Financisto: DataMap: {Pong=Pong1447565071992, time=1447565071992} sent to: Gear 2 76A1; path=/wearable_data [SendToDataLayerThread.run:179] 

Log in after starting the application and sending data:

 11-15 12:24:25.301 2460-2460/ru.orangesoftware.financisto D/FinancistoWear: onStartCommand: Service was started. 11-15 12:24:25.377 2460-2460/ru.orangesoftware.financisto V/FinancistoWear: DataMap: {time=1447565065308, ping=ping1447565065306} sent to: Tolive GN3 11-15 12:24:25.379 2460-3309/ru.orangesoftware.financisto D/FinancistoWear: In dataChanged 11-15 12:24:25.379 2460-3309/ru.orangesoftware.financisto D/FinancistoWear: DataChanged: path = /handheld_data 

Please tell me what am I doing wrong?

Decision

I am rewriting SendToDataLayerThread. Now this is a regular class without the Thread and DataRequest extensions becoming urgent:

 class SendToDataLayerThread { String path; DataMap dataMap; // Constructor for sending data objects to the data layer SendToDataLayerThread(String p, DataMap data) { path = p; dataMap = data; } public void run() { //NodeApi.GetConnectedNodesResult nodes = Wearable.NodeApi.getConnectedNodes(googleClient); PendingResult<NodeApi.GetConnectedNodesResult> nodes = Wearable.NodeApi.getConnectedNodes(googleClient); nodes.setResultCallback(new ResultCallback<NodeApi.GetConnectedNodesResult>() { @Override public void onResult(NodeApi.GetConnectedNodesResult getConnectedNodesResult) { for (Node node : getConnectedNodesResult.getNodes()) { final Node node2 = node; // Construct a DataRequest and send over the data layer PutDataMapRequest putDMR = PutDataMapRequest.create(path); putDMR.getDataMap().putAll(dataMap); PutDataRequest request = putDMR.asPutDataRequest(); request.setUrgent(); PendingResult<DataApi.DataItemResult> pendingResult = Wearable.DataApi.putDataItem(googleClient, request); pendingResult.setResultCallback(new ResultCallback<DataApi.DataItemResult>() { @Override public void onResult(DataApi.DataItemResult dataItemResult) { if (dataItemResult.getStatus().isSuccess()) { Log.v("DataMap: " + dataMap + " sent to: " + node2.getDisplayName()); } else { // Log an error Log.v("ERROR: failed to send DataMap"); } } }); } } }); } } 

Thanks for the help!

Answer 1

On Google Play 8.3 blog post :

With Google Play 8.3 services, we updated DataApi to ensure the urgency of data item synchronization. Now you can add priority to a data item to determine when it should be synchronized. For example, if you are creating an application that requires immediate synchronization, for example, a remote control application, you can still do it right away by calling setUrgent (), but for something like updating your contacts, you may suffer some delay. Non-urgent data. Data may be delayed for up to 30 minutes , but you can expect that in most cases it will be delivered within a few minutes. Low priority is now the default , so setUrgent () is needed to get the previous time.

So make sure you call setUrgent () in your data requests if you want them to synchronize immediately with other connected devices.