Convert footer holder to compose

app/src/main/java/com/hippo/ehviewer/ui/scene/FooterAdapter.kt

@@ -1,29 +1,29 @@
 package com.hippo.ehviewer.ui.scene
 
-import android.view.LayoutInflater
 import android.view.ViewGroup
+import androidx.compose.foundation.layout.Box
+import androidx.compose.foundation.layout.Column
+import androidx.compose.foundation.layout.aspectRatio
+import androidx.compose.foundation.layout.fillMaxWidth
+import androidx.compose.material3.Card
+import androidx.compose.material3.Text
+import androidx.compose.runtime.getValue
+import androidx.compose.runtime.mutableStateOf
+import androidx.compose.runtime.setValue
+import androidx.compose.ui.Alignment
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.platform.ComposeView
 import androidx.recyclerview.widget.RecyclerView
-import com.hippo.ehviewer.databinding.ItemGalleryPreviewFooterBinding
+import com.google.accompanist.themeadapter.material3.Mdc3Theme
 
 class FooterAdapter(private val onClick: () -> Unit) :
     RecyclerView.Adapter<FooterAdapter.ViewHolder>() {
-    var text: String? = null
-        set(value) {
-            field = value
-            notifyItemChanged(0)
-        }
+    var text by mutableStateOf("")
 
-    inner class ViewHolder(val binding: ItemGalleryPreviewFooterBinding) :
-        RecyclerView.ViewHolder(binding.root) {
-        init {
-            itemView.setOnClickListener { onClick() }
-        }
-    }
+    inner class ViewHolder(val composeView: ComposeView) : RecyclerView.ViewHolder(composeView)
 
     override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): ViewHolder {
-        val inflater = LayoutInflater.from(parent.context)
-        val binding = ItemGalleryPreviewFooterBinding.inflate(inflater, parent, false)
-        return ViewHolder(binding)
+        return ViewHolder(ComposeView(parent.context))
     }
 
     override fun getItemCount(): Int {
@@ -31,6 +31,23 @@ class FooterAdapter(private val onClick: () -> Unit) :
     }
 
     override fun onBindViewHolder(holder: ViewHolder, position: Int) {
-        holder.binding.text.text = text
+        holder.composeView.setContent {
+            Mdc3Theme {
+                Column {
+                    Box(
+                        contentAlignment = Alignment.Center
+                    ) {
+                        Card(
+                            onClick = onClick,
+                            modifier = Modifier
+                                .fillMaxWidth()
+                                .aspectRatio(0.6666667F)
+                        ) {}
+                        Text(text)
+                    }
+                    Text("")
+                }
+            }
+        }
     }
 }

app/src/main/java/com/hippo/ehviewer/ui/scene/GalleryDetailScene.kt

@@ -156,6 +156,7 @@ class GalleryDetailScene : CollapsingToolbarScene(), View.OnClickListener, Downl
     private var mCurrentFunds: HomeParser.Funds? = null
     private var previewsAdapter: GalleryPreviewsAdapter? = null
     private var footerAdapter: FooterAdapter? = null
+    private var headerAdapter: FooterAdapter? = null
 
     @State
     private var mState = STATE_INIT
@@ -412,7 +413,8 @@ class GalleryDetailScene : CollapsingToolbarScene(), View.OnClickListener, Downl
                 mainActivity!!.startReaderActivity(mGalleryDetail!!, it.position)
             }
             footerAdapter = FooterAdapter { navigateToPreview(true) }
-            adapter = ConcatAdapter(previewsAdapter, footerAdapter)
+            headerAdapter = FooterAdapter { navigateToPreview() }
+            adapter = ConcatAdapter(headerAdapter, previewsAdapter, footerAdapter)
             val columnWidth = Settings.thumbSize
             layoutManager = AutoGridLayoutManager(context, columnWidth).apply {
                 setStrategy(SimpleGridAutoSpanLayout.STRATEGY_SUITABLE_SIZE)
@@ -452,6 +454,7 @@ class GalleryDetailScene : CollapsingToolbarScene(), View.OnClickListener, Downl
         mViewTransition2 = null
         previewsAdapter = null
         footerAdapter = null
+        headerAdapter = null
         _binding = null
     }
 
@@ -728,6 +731,7 @@ class GalleryDetailScene : CollapsingToolbarScene(), View.OnClickListener, Downl
     private fun bindPreviews(gd: GalleryDetail) {
         _binding ?: return
         val previewList = gd.previewList
+        headerAdapter?.text = getString(R.string.more_previews)
         if (gd.previewPages <= 0 || previewList.isEmpty()) {
             footerAdapter?.text = getString(R.string.no_previews)
             return

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

@@ -1,18 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-
-<com.google.android.material.card.MaterialCardView
-    xmlns:android="http://schemas.android.com/apk/res/android"
-    xmlns:app="http://schemas.android.com/apk/res-auto"
-    style="@style/Widget.Material3.CardView.Outlined"
-    android:layout_width="match_parent"
-    android:layout_height="wrap_content"
-    app:strokeColor="@android:color/transparent">
-
-    <TextView
-        android:id="@+id/text"
-        android:layout_width="match_parent"
-        android:layout_height="match_parent"
-        android:paddingBottom="@dimen/text_little_small"
-        android:gravity="center" />
-
-</com.google.android.material.card.MaterialCardView>