更新界面

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

@@ -1,26 +1,53 @@
 <?xml version="1.0" encoding="utf-8"?>
-<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+<androidx.coordinatorlayout.widget.CoordinatorLayout
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
     xmlns:tools="http://schemas.android.com/tools"
     android:layout_width="match_parent"
-    android:layout_height="match_parent"
-    xmlns:app="http://schemas.android.com/apk/res-auto"
-    android:orientation="vertical">
+    android:layout_height="match_parent">
 
-    <io.legato.kazusa.ui.widget.TitleBar
+    <com.google.android.material.appbar.AppBarLayout
         android:id="@+id/title_bar"
         android:layout_width="match_parent"
-        android:layout_height="wrap_content" />
-
-    <com.google.android.material.tabs.TabLayout
-        android:id="@+id/tab_layout"
-        android:layout_width="match_parent"
         android:layout_height="wrap_content"
-        android:layout_marginStart="16dp"/>
+        android:fitsSystemWindows="true"
+        app:liftOnScroll="false"
+        android:stateListAnimator="@null">
+
+        <com.google.android.material.appbar.CollapsingToolbarLayout
+            android:layout_width="match_parent"
+            android:layout_height="?attr/collapsingToolbarLayoutLargeSize"
+            style="?attr/collapsingToolbarLayoutLargeSize"
+            app:collapsedTitleTextAppearance="?attr/textAppearanceTitleLarge"
+            app:expandedTitleTextAppearance="?attr/textAppearanceHeadlineLarge"
+            app:titleCollapseMode="scale"
+            app:layout_scrollFlags="scroll|exitUntilCollapsed|snap">
+
+            <com.google.android.material.appbar.MaterialToolbar
+                android:id="@+id/top_bar"
+                android:layout_width="match_parent"
+                android:layout_height="?attr/actionBarSize"
+                app:navigationIcon="@drawable/ic_arrow_back"
+                app:layout_collapseMode="pin" />
+
+        </com.google.android.material.appbar.CollapsingToolbarLayout>
+
+        <com.google.android.material.tabs.TabLayout
+            android:id="@+id/tab_layout"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:background="?attr/colorSurface"
+            android:paddingHorizontal="16dp"
+            app:layout_scrollFlags="scroll|enterAlways"
+            tools:ignore="RtlSymmetry" />
+
+    </com.google.android.material.appbar.AppBarLayout>
 
     <androidx.viewpager.widget.ViewPager
         android:id="@+id/view_pager"
         android:layout_width="match_parent"
-        android:layout_height="wrap_content"
+        android:layout_height="match_parent"
+        app:layout_behavior="@string/appbar_scrolling_view_behavior"
         tools:ignore="SpeakableTextPresentCheck" />
 
-</LinearLayout>
+</androidx.coordinatorlayout.widget.CoordinatorLayout>