Added filters active hint

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

@@ -162,6 +162,7 @@ public class FragmentMessages extends FragmentBase implements SharedPreferences.
     private ImageButton ibHintSwipe;
     private ImageButton ibHintSelect;
     private TextView tvNoEmail;
+    private TextView tvNoEmailHint;
     private FixedRecyclerView rvMessage;
     private View vwAnchor;
     private SeekBar sbThread;
@@ -358,6 +359,7 @@ public class FragmentMessages extends FragmentBase implements SharedPreferences.
         ibHintSwipe = view.findViewById(R.id.ibHintSwipe);
         ibHintSelect = view.findViewById(R.id.ibHintSelect);
         tvNoEmail = view.findViewById(R.id.tvNoEmail);
+        tvNoEmailHint = view.findViewById(R.id.tvNoEmailHint);
         rvMessage = view.findViewById(R.id.rvMessage);
         vwAnchor = view.findViewById(R.id.vwAnchor);
         sbThread = view.findViewById(R.id.sbThread);
@@ -888,6 +890,7 @@ public class FragmentMessages extends FragmentBase implements SharedPreferences.
             view.setBackgroundColor(ContextCompat.getColor(getContext(), R.color.lightColorBackground_cards));
 
         tvNoEmail.setVisibility(View.GONE);
+        tvNoEmailHint.setVisibility(View.GONE);
         sbThread.setVisibility(View.GONE);
         ibDown.setVisibility(View.GONE);
         ibUp.setVisibility(View.GONE);
@@ -2910,8 +2913,10 @@ public class FragmentMessages extends FragmentBase implements SharedPreferences.
         public void onLoading() {
             loading = true;
             pbWait.setVisibility(View.VISIBLE);
-            if (viewType == AdapterMessage.ViewType.SEARCH)
+            if (viewType == AdapterMessage.ViewType.SEARCH) {
                 tvNoEmail.setVisibility(View.GONE);
+                tvNoEmailHint.setVisibility(View.GONE);
+            }
         }
 
         @Override
@@ -2921,7 +2926,9 @@ public class FragmentMessages extends FragmentBase implements SharedPreferences.
             if (initialized && SimpleTask.getCount() == 0)
                 pbWait.setVisibility(View.GONE);
 
-            tvNoEmail.setVisibility(fetched == 0 ? View.VISIBLE : View.GONE);
+            boolean none = (fetched == 0);
+            tvNoEmail.setVisibility(none ? View.VISIBLE : View.GONE);
+            tvNoEmail.setVisibility(none && filterActive() ? View.VISIBLE : View.GONE);
         }
 
         @Override
@@ -2979,8 +2986,11 @@ public class FragmentMessages extends FragmentBase implements SharedPreferences.
             if (!loading && SimpleTask.getCount() == 0)
                 pbWait.setVisibility(View.GONE);
 
-            if (viewType != AdapterMessage.ViewType.SEARCH)
-                tvNoEmail.setVisibility(messages.size() == 0 && !loading ? View.VISIBLE : View.GONE);
+            if (viewType != AdapterMessage.ViewType.SEARCH) {
+                boolean none = (messages.size() == 0 && !loading);
+                tvNoEmail.setVisibility(none ? View.VISIBLE : View.GONE);
+                tvNoEmailHint.setVisibility(none && filterActive() ? View.VISIBLE : View.GONE);
+            }
             grpReady.setVisibility(View.VISIBLE);
         }
     };
@@ -3483,6 +3493,13 @@ public class FragmentMessages extends FragmentBase implements SharedPreferences.
         return TextUtils.join(", ", displays);
     }
 
+    private boolean filterActive() {
+        SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(getContext());
+        boolean filter_seen = prefs.getBoolean("filter_seen", false);
+        boolean filter_unflagged = prefs.getBoolean("filter_unflagged", false);
+        return (filter_seen || filter_unflagged);
+    }
+
     private ActivityBase.IBackPressedListener onBackPressedListener = new ActivityBase.IBackPressedListener() {
         @Override
         public boolean onBackPressed() {

app/src/main/res/layout/fragment_messages.xml

@@ -140,6 +140,16 @@
                 app:layout_constraintStart_toStartOf="@+id/rvMessage"
                 app:layout_constraintTop_toTopOf="@+id/rvMessage" />
 
+            <TextView
+                android:id="@+id/tvNoEmailHint"
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:text="@string/title_filters_active"
+                android:textAppearance="@style/TextAppearance.AppCompat.Small"
+                app:layout_constraintEnd_toEndOf="@+id/rvMessage"
+                app:layout_constraintStart_toStartOf="@+id/rvMessage"
+                app:layout_constraintTop_toBottomOf="@+id/tvNoEmail" />
+
             <eu.faircode.email.FixedRecyclerView
                 android:id="@+id/rvMessage"
                 android:layout_width="0dp"

app/src/main/res/values/strings.xml

@@ -471,8 +471,9 @@
     <string name="title_folder_user">User</string>
     <string name="title_folder_primary">Folders primary account</string>
     <string name="title_folders_unified">Unified inbox folders</string>
-    <string name="title_no_messages">No messages</string>
     <string name="title_no_folders">No folders</string>
+    <string name="title_no_messages">No messages</string>
+    <string name="title_filters_active">One or more filters active</string>
 
     <string name="title_subject_reply">Re: %1$s</string>
     <string name="title_subject_forward">Fwd: %1$s</string>