fix #56

app/src/main/java/awais/instagrabber/MainHelper.java

@@ -262,7 +262,7 @@ public final class MainHelper implements SwipeRefreshLayout.OnRefreshListener {
     private DiscoverAdapter discoverAdapter;
     public SimpleExoPlayer currentFeedPlayer; // hack for remix drawer layout
     private String cookie = Utils.settingsHelper.getString(Constants.COOKIE);
-    public boolean isLoggedIn = !Utils.isEmpty(cookie);
+    public boolean isLoggedIn = !Utils.isEmpty(cookie) && Utils.getUserIdFromCookie(cookie) != null;
 
     public MainHelper(@NonNull final Main main) {
         stopCurrentExecutor();

app/src/main/java/awais/instagrabber/utils/Utils.java

@@ -150,15 +150,12 @@ public final class Utils {
     @Nullable
     public static String getUserIdFromCookie(final String cookie) {
         if (!isEmpty(cookie)) {
-            final int uidIndex = cookie.indexOf("ds_user_id");
+            final int uidIndex = cookie.indexOf("ds_user_id=");
             if (uidIndex > 0) {
-                final int uidEndIndex = cookie.indexOf(';', uidIndex + 10);
-                if (uidEndIndex > 0) {
-                    final String uid = cookie.substring(uidIndex + 11, uidEndIndex);
+                String uid = cookie.split("ds_user_id=")[1].split(";")[0];
                 return !isEmpty(uid) ? uid : null;
             }
         }
-        }
         return null;
     }