changed service to Job Service to avoid crash in android 8.0 versions

app/build.gradle

@@ -36,7 +36,7 @@ android {
 
     defaultConfig {
         applicationId "com.vsoft.vera"
-        minSdkVersion 21
+        minSdkVersion 23
         targetSdkVersion 28
         versionCode 1
         versionName "0.0.1"
@@ -72,7 +72,7 @@ android {
         vportal {
             applicationId "com.vsoft.vera.vportal"
             versionCode 1
-            versionName "1.1.0"
+            versionName "0.2.1"
         }
     }
 }

app/src/main/AndroidManifest.xml

@@ -88,7 +88,8 @@
             android:screenOrientation="portrait" />
         <activity android:name=".ui.InAppWebViewActivity" />
 
-        <service android:name=".service.SyncService" />
+        <service android:name=".service.SyncService"
+            android:permission="android.permission.BIND_JOB_SERVICE" />
 
         <provider
             android:name="android.support.v4.content.FileProvider"

app/src/main/java/com/vsoft/vera/CatalogueApplication.java

 package com.vsoft.vera;
 
+import android.app.job.JobInfo;
+import android.app.job.JobScheduler;
 import android.content.BroadcastReceiver;
+import android.content.ComponentName;
 import android.content.Context;
 import android.content.Intent;
 import android.content.IntentFilter;
@@ -45,10 +48,11 @@ public class CatalogueApplication extends MultiDexApplication {
             String action = intent.getStringExtra(Constants.APPLICATION_BROADCAST_DATA_ACTION);
             Log.d(Constants.TAG, "CatalogueApplication: onReceive: action: " + action);
             if (Constants.ACTION_SYNC.equals(action)) {
-                Intent syncMatchSummaryIntentIntent = new Intent(context, SyncService.class);
+                //Intent syncMatchSummaryIntentIntent = new Intent(context, SyncService.class);
                 if (Constants.DEBUG)
                     Log.d(Constants.TAG, "CatalogueApplication: Start SyncService");
-                context.startService(syncMatchSummaryIntentIntent);
+                //context.startService(syncMatchSummaryIntentIntent);
+                scheduleJob(context);
             }
         }
     };
@@ -75,6 +79,20 @@ public class CatalogueApplication extends MultiDexApplication {
         }
     };
 
+    // schedule the start of the service every 10 - 30 seconds
+    public static void scheduleJob(Context context) {
+        ComponentName serviceComponent = new ComponentName(context, SyncService.class);
+        JobInfo.Builder builder = new JobInfo.Builder(0, serviceComponent);
+        builder.setMinimumLatency(1 * 1000); // wait at least
+        builder.setOverrideDeadline(3 * 1000); // maximum delay
+        //builder.setRequiredNetworkType(JobInfo.NETWORK_TYPE_UNMETERED); // require unmetered network
+        //builder.setRequiresDeviceIdle(true); // device should be idle
+        //builder.setRequiresCharging(false); // we don't care if the device is charging or not
+        JobScheduler jobScheduler = context.getSystemService(JobScheduler.class);
+        jobScheduler.schedule(builder.build());
+    }
+
+
     @Override
     public void onCreate() {
         super.onCreate();

app/src/main/java/com/vsoft/vera/service/SyncService.java

 package com.vsoft.vera.service;
 
 import android.app.IntentService;
+import android.app.job.JobParameters;
+import android.app.job.JobService;
 import android.content.Intent;
+import android.os.AsyncTask;
 
 import com.vsoft.vera.CatalogueApplication;
 import com.vsoft.vera.api.listeners.get.GetChatServerApiListener;
@@ -62,29 +65,45 @@ import static com.vsoft.vera.db.managers.CatalogueItemInputManager.getDirtyItemI
  */
 
 
-public class SyncService extends IntentService {
+public class SyncService extends JobService {
 
 	private SyncStatus syncStatus = SyncStatus.FAIL;
 
-	public SyncService() {
-		super(SyncService.class.getSimpleName());
+	@Override
+	public boolean onStartJob(JobParameters params) {
+		BackgroundQueueAsync backgroundQueueAsync = new BackgroundQueueAsync();
+		backgroundQueueAsync.execute();
+		return false;
 	}
 
 	@Override
-	protected void onHandleIntent(Intent intent) {
-		CatalogueApplication application = (CatalogueApplication) getApplication();
-		if (!application.isNetConnected()) {
-			CatalogueLog.e("SyncService: onHandleIntent(): Not connected to net. Exit.");
-			return;
+	public boolean onStopJob(JobParameters params) {
+		return false;
+	}
+	public class BackgroundQueueAsync extends AsyncTask<Void, Void, Void> {
+		public BackgroundQueueAsync() {
 		}
 
-		if(Util.isChatItemEnabled()) {
-			if (application.getSocket() == null) {
-				getChatServerUrl();
+		@Override
+		protected Void doInBackground(Void... voids) {
+
+			CatalogueApplication application = (CatalogueApplication) getApplication();
+			if (!application.isNetConnected()) {
+				CatalogueLog.e("SyncService: onHandleIntent(): Not connected to net. Exit.");
+			}else{
+
+				if(Util.isChatItemEnabled()) {
+					if (application.getSocket() == null) {
+						getChatServerUrl();
+					}
+				}
+
+				startSync();
 			}
-		}
 
-		startSync();
+
+			return null;
+		}
 	}
 
 	/**