Async widget sync state update

app/src/main/java/eu/faircode/email/ServiceSynchronize.java

@@ -658,29 +658,21 @@ public class ServiceSynchronize extends ServiceBase implements SharedPreferences
                             prefs.getBoolean(_key, false)) {
                         int appWidgetId = Integer.parseInt(_key.split("\\.")[1]);
 
-                        String key = "widget." + appWidgetId + ".sync";
-                        boolean sync = prefs.contains(key);
-                        if (!sync)
-                            continue;
-
                         long account = prefs.getLong("widget." + appWidgetId + ".account", -1L);
                         long folder = prefs.getLong("widget." + appWidgetId + ".folder", -1L);
 
-                        if (folder > 0) {
+                        boolean state;
-                            if (!folders.contains(folder)) {
+                        if (folder > 0)
-                                prefs.edit().remove(key).apply();
+                            state = folders.contains(folder);
-                                WidgetUnified.init(ServiceSynchronize.this, appWidgetId);
+                        else if (account > 0)
-                            }
+                            state = accounts.contains(account);
-                        } else if (account > 0) {
+                        else
-                            if (!accounts.contains(account)) {
+                            state = (accounts.size() > 0);
-                                prefs.edit().remove(key).apply();
+
-                                WidgetUnified.init(ServiceSynchronize.this, appWidgetId);
+                        String key = "widget." + appWidgetId + ".syncing";
-                            }
+                        if (state != prefs.getBoolean(key, false)) {
-                        } else {
+                            prefs.edit().putBoolean(key, state).apply();
-                            if (accounts.size() == 0) {
+                            WidgetUnified.init(ServiceSynchronize.this, appWidgetId);
-                                prefs.edit().remove(key).apply();
-                                WidgetUnified.init(ServiceSynchronize.this, appWidgetId);
-                            }
                         }
                     }
             }

app/src/main/java/eu/faircode/email/ServiceUI.java

@@ -58,8 +58,6 @@ public class ServiceUI extends IntentService {
     static final int PI_SNOOZE = 10;
     static final int PI_IGNORED = 11;
 
-    private static final long WIDGET_SYNC_DURATION = 90 * 1000L;
-
     public ServiceUI() {
         this(ServiceUI.class.getName());
     }
@@ -491,23 +489,6 @@ public class ServiceUI extends IntentService {
         long aid = intent.getLongExtra("account", -1L);
         long fid = intent.getLongExtra("folder", -1L);
         onSync(aid, fid, fid < 0);
-
-        SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(this);
-        String key = "widget." + appWidgetId + ".sync";
-        prefs.edit().putLong(key, new Date().getTime() + WIDGET_SYNC_DURATION).apply();
-        WidgetUnified.init(this, appWidgetId);
-
-        ApplicationEx.getMainHandler().postDelayed(new Runnable() {
-            @Override
-            public void run() {
-                try {
-                    prefs.edit().remove(key).apply();
-                    WidgetUnified.init(ServiceUI.this, appWidgetId);
-                } catch (Throwable ex) {
-                    Log.e(ex);
-                }
-            }
-        }, WIDGET_SYNC_DURATION);
     }
 
     static void sync(Context context, Long account) {

app/src/main/java/eu/faircode/email/WidgetUnified.java

@@ -105,9 +105,8 @@ public class WidgetUnified extends AppWidgetProvider {
             views.setViewPadding(R.id.refresh, px, px, px, px);
             views.setOnClickPendingIntent(R.id.refresh, piSync);
 
-            long now = new Date().getTime();
+            boolean syncing = prefs.getBoolean("widget." + appWidgetId + ".syncing", false);
-            long refreshing = prefs.getLong("widget." + appWidgetId + ".sync", 0L);
+            views.setImageViewResource(R.id.refresh, syncing ? R.drawable.twotone_compare_arrows_24 : R.drawable.twotone_sync_24);
-            views.setImageViewResource(R.id.refresh, refreshing < now ? R.drawable.twotone_sync_24 : R.drawable.twotone_compare_arrows_24);
             views.setViewVisibility(R.id.refresh, refresh ? View.VISIBLE : View.INVISIBLE);
 
             views.setViewVisibility(R.id.compose, compose ? View.VISIBLE : View.GONE);