StackOverflow2013

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copied!<p>Android decoupling came to bite me again. It appears that both apps needed to also have a <code>sync_adapter.xml</code> like:</p> <pre><code> <sync-adapter xmlns:android="http://schemas.android.com/apk/res/android" android:contentAuthority="mypackage" android:accountType="mypackage.account" android:supportsUploading="true" android:userVisible="true" android:allowParallelSyncs="false" android:isAlwaysSyncable="true"/> </code></pre> <p>and connect that to the sync service in the <code>AndroidManifest.xml</code>:</p> <pre><code> <service android:exported="true" android:name=".data.sync.SyncService" tools:ignore="ExportedService"> <intent-filter> <action android:name="android.content.SyncAdapter"/> </intent-filter> <meta-data android:name="android.content.SyncAdapter" android:resource="@xml/sync_adapter"/> </service> </code></pre> <p>For completeness, my <code>Service</code> is implemented as follows:</p> <pre><code>/** * Service that provides sync functionality to the SyncManager through the {@link SyncAdapter}. */ public class SyncService extends Service { @Override public void onCreate() { synchronized (_sync_adapter_lock) { if (_sync_adapter == null) _sync_adapter = new SyncAdapter(getApplicationContext(), false); } } @Override public IBinder onBind(Intent intent) { return _sync_adapter.getSyncAdapterBinder(); } private static final Object _sync_adapter_lock = new Object(); private static SyncAdapter _sync_adapter = null; } </code></pre> <p>and the <code>SyncAdapter</code>:</p> <pre><code>/** * Sync adapter for KeepandShare data. */ public class SyncAdapter extends AbstractThreadedSyncAdapter { public SyncAdapter(Context context, boolean should_auto_initialize) { super(context, should_auto_initialize); //noinspection ConstantConditions,PointlessBooleanExpression if (!BuildConfig.DEBUG) { Thread.setDefaultUncaughtExceptionHandler(new Thread.UncaughtExceptionHandler() { @Override public void uncaughtException(Thread thread, Throwable throwable) { Log.e("Uncaught sync exception, suppressing UI in release build.", throwable); } }); } } @Override public void onPerformSync(Account account, Bundle extras, String authority, ContentProviderClient provider, SyncResult sync_result) { // TODO: implement sync } } </code></pre> <p>Even though I'm not actually syncing any data (the apps are not even linked to any server right now), the Android framework appears to be using the settings of the <code>SyncAdapter</code> to figure out which account authenticator respond to the add account request.</p>

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