Improve search feature for better UX

app/src/main/java/com/beemdevelopment/aegis/ui/MainActivity.java

@@ -930,6 +930,7 @@ public class MainActivity extends AegisActivity implements EntryListView.Listene
         _searchView.setOnCloseListener(() -> {
             boolean enabled = _submittedSearchQuery != null;
             _searchViewBackPressHandler.setEnabled(enabled);
+            _groupChip.setVisibility(_groups.isEmpty() ? View.GONE : View.VISIBLE);
             return false;
         });
 
@@ -963,6 +964,7 @@ public class MainActivity extends AegisActivity implements EntryListView.Listene
         });
         _searchView.setOnSearchClickListener(v -> {
             String query = _submittedSearchQuery != null ? _submittedSearchQuery : _pendingSearchQuery;
+            _groupChip.setVisibility(View.GONE);
             _searchView.setQuery(query, false);
         });
 
@@ -1028,6 +1030,7 @@ public class MainActivity extends AegisActivity implements EntryListView.Listene
     }
 
     private void collapseSearchView() {
+        _groupChip.setVisibility(_groups.isEmpty() ? View.GONE : View.VISIBLE);
         _searchView.setQuery(null, false);
         _searchView.setIconified(true);
     }

app/src/main/java/com/beemdevelopment/aegis/ui/views/EntryAdapter.java

@@ -37,6 +37,7 @@ import com.beemdevelopment.aegis.vault.VaultEntry;
 import com.beemdevelopment.aegis.vault.VaultGroup;
 
 import java.util.ArrayList;
+import java.util.Arrays;
 import java.util.Collection;
 import java.util.Collections;
 import java.util.Comparator;
@@ -196,6 +197,19 @@ public class EntryAdapter extends RecyclerView.Adapter<RecyclerView.ViewHolder>
         String name = entry.getName().toLowerCase();
         String note = entry.getNote().toLowerCase();
 
+        if (_searchFilter != null) {
+            String[] tokens = _searchFilter.toLowerCase().split("\\s+");
+
+            // Return true if not all tokens match at least one of the relevant fields
+            return !Arrays.stream(tokens)
+                    .allMatch(token ->
+                            ((_searchBehaviorMask & Preferences.SEARCH_IN_ISSUER) != 0 && issuer.contains(token)) ||
+                                    ((_searchBehaviorMask & Preferences.SEARCH_IN_NAME) != 0 && name.contains(token)) ||
+                                    ((_searchBehaviorMask & Preferences.SEARCH_IN_NOTE) != 0 && note.contains(token)) ||
+                                    ((_searchBehaviorMask & Preferences.SEARCH_IN_GROUPS) != 0 && doesAnyGroupMatchSearchFilter(groups, token))
+                    );
+        }
+
         if (!_groupFilter.isEmpty()) {
             if (groups.isEmpty() && !_groupFilter.contains(null)) {
                 return true;
@@ -205,16 +219,9 @@ public class EntryAdapter extends RecyclerView.Adapter<RecyclerView.ViewHolder>
             }
         }
 
-        if (_searchFilter == null) {
         return false;
     }
 
-        return ((_searchBehaviorMask & Preferences.SEARCH_IN_ISSUER) == 0 || !issuer.contains(_searchFilter))
-                && ((_searchBehaviorMask & Preferences.SEARCH_IN_NAME) == 0 || !name.contains(_searchFilter))
-                && ((_searchBehaviorMask & Preferences.SEARCH_IN_NOTE) == 0 || !note.contains(_searchFilter))
-                && ((_searchBehaviorMask & Preferences.SEARCH_IN_GROUPS) == 0 || !doesAnyGroupMatchSearchFilter(entry.getGroups(), _searchFilter));
-    }
-
     private boolean doesAnyGroupMatchSearchFilter(Set<UUID> entryGroupUUIDs, String searchFilter) {
         return _groups.stream()
                 .filter(group -> entryGroupUUIDs.contains(group.getUUID()))