diff --git a/Pixiview/Illust/RankingPage.xaml b/Pixiview/Illust/RankingPage.xaml
index 4ada51a..3937ff1 100644
--- a/Pixiview/Illust/RankingPage.xaml
+++ b/Pixiview/Illust/RankingPage.xaml
@@ -76,6 +76,7 @@
                     </u:SegmentedControl.Children>
                 </u:SegmentedControl>
                 <u:SegmentedControl Grid.Row="1" HorizontalOptions="Start"
+                                    IsVisible="{Binding SegmentTypeVisible}"
                                     Margin="6, 3, 6, 6" VerticalOptions="Center"
                                     SelectedSegmentIndex="{Binding SegmentType, Mode=TwoWay}"
                                     SelectedTextColor="{DynamicResource TextColor}"
diff --git a/Pixiview/Illust/RankingPage.xaml.cs b/Pixiview/Illust/RankingPage.xaml.cs
index 6e6b4be..234ab49 100644
--- a/Pixiview/Illust/RankingPage.xaml.cs
+++ b/Pixiview/Illust/RankingPage.xaml.cs
@@ -16,12 +16,14 @@ namespace Pixiview.Illust
 
         public static readonly BindableProperty SegmentDateProperty = BindableProperty.Create(
             nameof(SegmentDate), typeof(int), typeof(RankingPage), propertyChanged: OnSegmentDatePropertyChanged);
+        public static readonly BindableProperty SegmentTypeVisibleProperty = BindableProperty.Create(
+            nameof(SegmentTypeVisible), typeof(bool), typeof(RankingPage));
         public static readonly BindableProperty SegmentTypeProperty = BindableProperty.Create(
             nameof(SegmentType), typeof(int), typeof(RankingPage), propertyChanged: OnSegmentTypePropertyChanged);
         public static readonly BindableProperty MaximumDateProperty = BindableProperty.Create(
-            nameof(MaximumDate), typeof(DateTime), typeof(RankingPage), DateTime.Now);
+            nameof(MaximumDate), typeof(DateTime), typeof(RankingPage), DateTime.Today);
         public static readonly BindableProperty SelectedDateProperty = BindableProperty.Create(
-            nameof(SelectedDate), typeof(DateTime), typeof(RankingPage), DateTime.Now);
+            nameof(SelectedDate), typeof(DateTime), typeof(RankingPage), DateTime.Today);
 
         private static void OnSegmentDatePropertyChanged(BindableObject obj, object old, object @new)
         {
@@ -59,6 +61,11 @@ namespace Pixiview.Illust
             get => (int)GetValue(SegmentDateProperty);
             set => SetValue(SegmentDateProperty, value);
         }
+        public bool SegmentTypeVisible
+        {
+            get => (bool)GetValue(SegmentTypeVisibleProperty);
+            set => SetValue(SegmentTypeVisibleProperty, value);
+        }
         public int SegmentType
         {
             get => (int)GetValue(SegmentTypeProperty);
@@ -97,17 +104,33 @@ namespace Pixiview.Illust
             InitializeComponent();
             gridFilter.TranslationY = -100;
             panelFilter.TranslationY = -100;
-        }
 
-        public override void OnLoad()
-        {
+            // preferences
             SegmentDate = Preferences.Get(Configs.QueryModeKey, 0);
             SegmentType = Preferences.Get(Configs.QueryTypeKey, 0);
             lastQueryKey = QueryKey;
             queryDate = Preferences.Get(Configs.QueryDateKey, null);
             currentPage = 1;
             datePicker.MinimumDate = new DateTime(2007, 9, 13);
-            MaximumDate = DateTime.Now;
+            MaximumDate = DateTime.Today;
+        }
+
+        protected override void OnAppearing()
+        {
+            var r18 = Configs.IsOnR18;
+            if (!r18)
+            {
+                SegmentType = 0;
+                var query = QueryKey;
+                if (lastQueryKey != query)
+                {
+                    ReleaseCollection();
+                    lastQueryKey = query;
+                }
+            }
+            SegmentTypeVisible = r18;
+
+            base.OnAppearing();
         }
 
         protected override void OnDisappearing()
@@ -243,17 +266,11 @@ namespace Pixiview.Illust
                     ToggleFilterPanel(false);
                 }
                 // release
-                var collection = IllustCollection;
-                if (collection != null)
-                {
-                    collection.Running = false;
-                    IllustCollection = null;
-                }
+                ReleaseCollection();
                 previousEnabled = false;
                 dateEnabled = false;
                 nextEnabled = false;
                 queryDate = date;
-                currentPage = 1;
                 StartLoad(true);
             }
         }
@@ -273,22 +290,17 @@ namespace Pixiview.Illust
 
         private void DatePicker_DateSelected(object sender, DateChangedEventArgs e)
         {
-            if (IsLoading)
+            if (e.OldDate == DateTime.Today || IsLoading)
             {
+                // first load or loading
                 return;
             }
             // release
-            var collection = IllustCollection;
-            if (collection != null)
-            {
-                collection.Running = false;
-                IllustCollection = null;
-            }
+            ReleaseCollection();
             previousEnabled = false;
             dateEnabled = false;
             nextEnabled = false;
             queryDate = e.NewDate.ToString("yyyyMMdd");
-            currentPage = 1;
             StartLoad(true);
         }
 
@@ -342,17 +354,11 @@ namespace Pixiview.Illust
                 {
                     return;
                 }
-                if (lastQueryKey != query)
+                //if (lastQueryKey != query)
                 {
                     // release
-                    var collection = IllustCollection;
-                    if (collection != null)
-                    {
-                        collection.Running = false;
-                        IllustCollection = null;
-                    }
+                    ReleaseCollection();
                     // query changed.
-                    currentPage = 1;
                     lastQueryKey = query;
                     refresh = true;
                     App.DebugPrint($"query changed: {query}");
@@ -363,5 +369,16 @@ namespace Pixiview.Illust
                 StartLoad(true);
             }
         }
+
+        private void ReleaseCollection()
+        {
+            var collection = IllustCollection;
+            if (collection != null)
+            {
+                collection.Running = false;
+                IllustCollection = null;
+            }
+            currentPage = 1;
+        }
     }
 }
diff --git a/Pixiview/Illust/RecommendsPage.xaml.cs b/Pixiview/Illust/RecommendsPage.xaml.cs
index 2768da8..1bdcffc 100644
--- a/Pixiview/Illust/RecommendsPage.xaml.cs
+++ b/Pixiview/Illust/RecommendsPage.xaml.cs
@@ -92,6 +92,7 @@ namespace Pixiview.Illust
                 return new Grid
                 {
                     RowSpacing = 0,
+                    ColumnSpacing = 0,
                     RowDefinitions =
                     {
                         new RowDefinition { Height = 40 },
diff --git a/Pixiview/Illust/ViewIllustPage.xaml.cs b/Pixiview/Illust/ViewIllustPage.xaml.cs
index 2c26f64..26a5683 100644
--- a/Pixiview/Illust/ViewIllustPage.xaml.cs
+++ b/Pixiview/Illust/ViewIllustPage.xaml.cs
@@ -148,6 +148,7 @@ namespace Pixiview.Illust
 
         protected override void OnDisappearing()
         {
+            Screen.SetHomeIndicatorAutoHidden(Shell.Current, false);
             base.OnDisappearing();
 
             if (ugoira != null)
@@ -160,7 +161,6 @@ namespace Pixiview.Illust
             {
                 Stores.SaveFavoritesIllusts();
             }
-            Screen.SetHomeIndicatorAutoHidden(Shell.Current, false);
         }
 
         private DataTemplate GetCarouseTemplate(bool multiPages)
diff --git a/Pixiview/Utils/Stores.cs b/Pixiview/Utils/Stores.cs
index f741b87..bd507a2 100644
--- a/Pixiview/Utils/Stores.cs
+++ b/Pixiview/Utils/Stores.cs
@@ -450,7 +450,7 @@ namespace Pixiview.Utils
         public const string QueryTypeKey = "query_type";
         public const string QueryDateKey = "query_date";
 
-        public const int MaxThreads = 3;
+        public const int MaxThreads = 6;
         public const string Referer = "https://www.pixiv.net/";
         public const string RefererIllust = "https://www.pixiv.net/artworks/{0}";
         public const string RefererIllustRanking = "https://www.pixiv.net/ranking.php?{0}";
diff --git a/README.md b/README.md
index ca6c07b..1fd4b2b 100644
--- a/README.md
+++ b/README.md
@@ -3,7 +3,14 @@ iOS/Android client app for [Pixiv.net](https://pixiv.net/).
 
 ## Screenshot
 
-![screenshot](Res/screenshot.png)
+|![screenshot](Res/screenshot.png)|![screenshot2](Res/screenshot2.png)|
+|:-|:-|
+|![screenshot3](Res/screenshot3.png)|![screenshot4](Res/screenshot4.png)|
+|:-|:-|
+|![screenshot5](Res/screenshot5.png)|![screenshot6](Res/screenshot6.png)|
+|:-|:-|
+|![screenshot7](Res/screenshot7.png)|![screenshot8](Res/screenshot8.png)|
+
 
 ## Dependencies
 
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