Add no tags toggle

app/src/main/java/org/shadowice/flocke/andotp/Activities/MainActivity.java

@@ -603,7 +603,9 @@ public class MainActivity extends BaseActivity
         tagsToggle.setDrawerIndicatorEnabled(true);
         tagsDrawerLayout.addDrawerListener(tagsToggle);
 
+        final CheckedTextView noTagsButton = (CheckedTextView)findViewById(R.id.no_tags_entries);
         CheckedTextView allTagsButton = (CheckedTextView)findViewById(R.id.all_tags_in_drawer);
+
         allTagsButton.setOnClickListener(new View.OnClickListener() {
             @Override
             public void onClick(View view) {
@@ -616,6 +618,8 @@ public class MainActivity extends BaseActivity
                     CheckedTextView childCheckBox = (CheckedTextView)tagsDrawerListView.getChildAt(i);
                     childCheckBox.setChecked(checkedTextView.isChecked());
                 }
+                noTagsButton.setChecked(checkedTextView.isChecked());
+                settings.setNoTagsToggle(noTagsButton.isChecked());
 
                 if(checkedTextView.isChecked()) {
                     adapter.filterByTags(adapter.getTags());
@@ -626,6 +630,18 @@ public class MainActivity extends BaseActivity
         });
         allTagsButton.setChecked(settings.getAllTagsToggle());
 
+        noTagsButton.setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View view) {
+                CheckedTextView checkedTextView = ((CheckedTextView)view);
+                checkedTextView.setChecked(!checkedTextView.isChecked());
+
+                settings.setNoTagsToggle(checkedTextView.isChecked());
+                adapter.filterByTags(adapter.getTags());
+            }
+        });
+        noTagsButton.setChecked(settings.getNoTagsToggle());
+
         tagsDrawerListView.setAdapter(tagsDrawerAdapter);
 
         tagsDrawerListView.setOnItemClickListener(new AdapterView.OnItemClickListener() {

app/src/main/java/org/shadowice/flocke/andotp/Utilities/Settings.java

@@ -294,6 +294,14 @@ public class Settings {
         setBoolean(R.string.settings_key_all_tags_toggle, value);
     }
 
+    public boolean getNoTagsToggle() {
+        return getBoolean(R.string.settings_key_no_tags_toggle, true);
+    }
+
+    public void setNoTagsToggle(Boolean value) {
+        setBoolean(R.string.settings_key_no_tags_toggle, value);
+    }
+
     public boolean getTagToggle(String tag) {
         //The tag toggle holds tags that are unchecked in order to default to checked.
         Set<String> toggledTags = getStringSet(R.string.settings_key_tags_toggles, new HashSet<String>());

app/src/main/java/org/shadowice/flocke/andotp/View/EntriesCardAdapter.java

@@ -44,6 +44,7 @@ import android.widget.Toast;
 
 import org.shadowice.flocke.andotp.Database.Entry;
 import org.shadowice.flocke.andotp.Utilities.DatabaseHelper;
+import org.shadowice.flocke.andotp.Utilities.Settings;
 import org.shadowice.flocke.andotp.Utilities.TagDialogHelper;
 import org.shadowice.flocke.andotp.View.ItemTouchHelper.ItemTouchHelperAdapter;
 import org.shadowice.flocke.andotp.R;
@@ -70,11 +71,13 @@ public class EntriesCardAdapter extends RecyclerView.Adapter<EntryViewHolder>
 
     private SortMode sortMode = SortMode.UNSORTED;
     private TagsAdapter tagsFilterAdapter;
+    private Settings settings;
 
     public EntriesCardAdapter(Context context, TagsAdapter tagsFilterAdapter) {
         this.context = context;
         this.sharedPrefs = PreferenceManager.getDefaultSharedPreferences(context);
         this.tagsFilterAdapter = tagsFilterAdapter;
+        this.settings = new Settings(context);
         loadEntries();
     }
 
@@ -117,7 +120,7 @@ public class EntriesCardAdapter extends RecyclerView.Adapter<EntryViewHolder>
 
         for(Entry e : entries) {
             //Entries with no tags will always be shown
-            Boolean foundMatchingTag = e.getTags().isEmpty();
+            Boolean foundMatchingTag = e.getTags().isEmpty() && settings.getNoTagsToggle();
 
             for(String tag : tags) {
                 if(e.getTags().contains(tag)) {

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

@@ -20,6 +20,29 @@
         android:paddingEnd="?android:attr/listPreferredItemPaddingEnd"
         android:text="@string/button_all_tags"/>
 
+    <LinearLayout
+        android:layout_height="wrap_content"
+        android:layout_width="match_parent"
+        android:layout_gravity="center_horizontal">
+
+        <View
+            android:layout_width="match_parent"
+            android:layout_height="1dp"
+            android:background="@color/divider" />
+
+    </LinearLayout>
+
+    <CheckedTextView
+        android:id="@+id/no_tags_entries"
+        android:layout_width="match_parent"
+        android:layout_height="?android:attr/listPreferredItemHeightSmall"
+        android:textAppearance="?android:attr/textAppearanceListItemSmall"
+        android:gravity="center_vertical"
+        android:checkMark="?android:attr/listChoiceIndicatorMultiple"
+        android:paddingStart="?android:attr/listPreferredItemPaddingStart"
+        android:paddingEnd="?android:attr/listPreferredItemPaddingEnd"
+        android:text="@string/button_no_tags"/>
+
     <LinearLayout
         android:layout_height="wrap_content"
         android:layout_width="match_parent"
@@ -35,7 +58,7 @@
     <ListView
         android:id="@+id/tags_list_in_drawer"
         android:layout_width="match_parent"
-        android:dividerHeight="0dp"
+        android:dividerHeight="1dp"
         android:headerDividersEnabled="false"
         android:footerDividersEnabled="true"
         android:layout_height="match_parent" />

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

@@ -27,6 +27,7 @@
     <string name="settings_key_sort_mode" translatable="false">pref_sort_mode</string>
     <string name="settings_key_special_features" translatable="false">pref_special_features</string>
     <string name="settings_key_all_tags_toggle" translatable="false">pref_all_tags_toggle</string>
+    <string name="settings_key_no_tags_toggle" translatable="false">pref_no_tags_toggle</string>
     <string name="settings_key_tags_toggles" translatable="false">pref_tags_toggles</string>
 
     <!-- Default values -->

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

@@ -9,6 +9,7 @@
     <string name="button_new_tag">New tag</string>
     <string name="button_warned">You have been warned!</string>
     <string name="button_all_tags">All tags</string>
+    <string name="button_no_tags">No tags</string>
     
     <!-- Custom formatting -->
     <string name="format_custom_period">%d s</string>