Migrated BookmarkFragment, HistoryFragment, and NotesFragment to Jetpack Compose.

* Created a `PageScreen` composable, which serves as the base screen for all these fragments. Each fragment can customize it as needed.
* Introduced a reusable `PageListItem` composable for consistent list item rendering.
* Added an extension function to convert the favicon to a Compose ImageBitmap. If no favicon is available, it falls back to the default ZIM icon, maintaining behavior from the XML-based UI.

app/src/main/java/org/kiwix/kiwixmobile/ui/BookItem.kt

@@ -44,7 +44,8 @@ import androidx.compose.ui.platform.testTag
 import androidx.compose.ui.res.stringResource
 import androidx.compose.ui.text.style.TextOverflow
 import org.kiwix.kiwixmobile.core.R
-import org.kiwix.kiwixmobile.core.extensions.faviconToPainter
+import org.kiwix.kiwixmobile.core.downloader.model.Base64String
+import org.kiwix.kiwixmobile.core.downloader.model.toPainter
 import org.kiwix.kiwixmobile.core.ui.theme.KiwixTheme
 import org.kiwix.kiwixmobile.core.utils.ComposeDimens.BOOK_ICON_SIZE
 import org.kiwix.kiwixmobile.core.utils.ComposeDimens.EIGHT_DP
@@ -54,8 +55,8 @@ import org.kiwix.kiwixmobile.core.utils.ComposeDimens.SIXTEEN_DP
 import org.kiwix.kiwixmobile.core.utils.ComposeDimens.TWO_DP
 import org.kiwix.kiwixmobile.core.zim_manager.KiloByte
 import org.kiwix.kiwixmobile.core.zim_manager.fileselect_view.ArticleCount
-import org.kiwix.kiwixmobile.core.zim_manager.fileselect_view.SelectionMode
 import org.kiwix.kiwixmobile.core.zim_manager.fileselect_view.BooksOnDiskListItem.BookOnDisk
+import org.kiwix.kiwixmobile.core.zim_manager.fileselect_view.SelectionMode
 
 const val BOOK_ITEM_CHECKBOX_TESTING_TAG = "bookItemCheckboxTestingTag"
 const val BOOK_ITEM_TESTING_TAG = "bookItemTestingTag"
@@ -115,7 +116,7 @@ private fun BookContent(
     if (selectionMode == SelectionMode.MULTI) {
       BookCheckbox(bookOnDisk, selectionMode, onMultiSelect, onClick, index)
     }
-    BookIcon(bookOnDisk.book.faviconToPainter())
+    BookIcon(Base64String(bookOnDisk.book.favicon).toPainter())
     BookDetails(Modifier.weight(1f), bookOnDisk)
   }
 }

core/src/main/java/org/kiwix/kiwixmobile/core/downloader/model/Base64String.kt

@@ -21,6 +21,13 @@ package org.kiwix.kiwixmobile.core.downloader.model
 import android.graphics.Bitmap
 import android.graphics.BitmapFactory
 import android.util.Base64
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.remember
+import androidx.compose.ui.graphics.asImageBitmap
+import androidx.compose.ui.graphics.painter.BitmapPainter
+import androidx.compose.ui.graphics.painter.Painter
+import androidx.compose.ui.res.painterResource
+import org.kiwix.kiwixmobile.core.R
 
 @JvmInline
 value class Base64String(private val encodedString: String?) {
@@ -35,3 +42,13 @@ value class Base64String(private val encodedString: String?) {
     null
   }
 }
+
+@Composable
+fun Base64String.toPainter(): Painter {
+  val bitmap = remember(this) { toBitmap() }
+  return if (bitmap != null) {
+    BitmapPainter(bitmap.asImageBitmap())
+  } else {
+    painterResource(id = R.drawable.default_zim_file_icon)
+  }
+}

core/src/main/java/org/kiwix/kiwixmobile/core/extensions/BookExtensions.kt

@@ -18,15 +18,7 @@
 
 package org.kiwix.kiwixmobile.core.extensions
 
-import androidx.compose.runtime.Composable
-import androidx.compose.runtime.remember
-import androidx.compose.ui.graphics.asImageBitmap
-import androidx.compose.ui.graphics.painter.BitmapPainter
-import androidx.compose.ui.graphics.painter.Painter
-import androidx.compose.ui.res.painterResource
 import org.kiwix.kiwixmobile.core.CoreApp
-import org.kiwix.kiwixmobile.core.R
-import org.kiwix.kiwixmobile.core.downloader.model.Base64String
 import org.kiwix.kiwixmobile.core.entity.LibraryNetworkEntity.Book
 import org.kiwix.kiwixmobile.core.utils.BookUtils
 import org.kiwix.kiwixmobile.core.utils.NetworkUtils
@@ -62,14 +54,3 @@ fun Book.buildSearchableText(bookUtils: BookUtils): String =
       append("|")
     }
   }.toString()
-
-@Composable
-fun Book.faviconToPainter(): Painter {
-  val base64String = Base64String(favicon)
-  val bitmap = remember(base64String) { base64String.toBitmap() }
-  return if (bitmap != null) {
-    BitmapPainter(bitmap.asImageBitmap())
-  } else {
-    painterResource(id = R.drawable.default_zim_file_icon)
-  }
-}

core/src/main/java/org/kiwix/kiwixmobile/core/page/PageFragment.kt

@@ -31,6 +31,7 @@ import androidx.appcompat.app.AppCompatActivity
 import androidx.appcompat.view.ActionMode
 import androidx.appcompat.widget.SearchView
 import androidx.appcompat.widget.Toolbar
+import androidx.compose.ui.platform.ComposeView
 import androidx.core.view.MenuHost
 import androidx.core.view.MenuProvider
 import androidx.lifecycle.Lifecycle
@@ -67,7 +68,7 @@ abstract class PageFragment : OnItemClickListener, BaseFragment(), FragmentActiv
   @Inject lateinit var sharedPreferenceUtil: SharedPreferenceUtil
   private var actionMode: ActionMode? = null
   val compositeDisposable = CompositeDisposable()
-  abstract val screenTitle: String
+  abstract val screenTitle: Int
   abstract val noItemsString: String
   abstract val switchString: String
   abstract val searchQueryHint: String
@@ -78,7 +79,6 @@ abstract class PageFragment : OnItemClickListener, BaseFragment(), FragmentActiv
   override val fragmentToolbar: Toolbar? by lazy {
     fragmentPageBinding?.root?.findViewById(R.id.toolbar)
   }
-  override val fragmentTitle: String? by lazy { screenTitle }
 
   private val actionModeCallback: ActionMode.Callback =
     object : ActionMode.Callback {
@@ -145,7 +145,7 @@ abstract class PageFragment : OnItemClickListener, BaseFragment(), FragmentActiv
 
   override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
     super.onViewCreated(view, savedInstanceState)
-    setupMenu()
+    // setupMenu()
     val activity = requireActivity() as CoreMainActivity
     fragmentPageBinding?.recyclerView?.apply {
       layoutManager =
@@ -182,8 +182,24 @@ abstract class PageFragment : OnItemClickListener, BaseFragment(), FragmentActiv
     container: ViewGroup?,
     savedInstanceState: Bundle?
   ): View? {
-    fragmentPageBinding = FragmentPageBinding.inflate(inflater, container, false)
-    return fragmentPageBinding?.root
+    return ComposeView(requireContext()).apply {
+      setContent {
+        PageScreen(
+          pageState = pageViewModel.state,
+          effects = pageViewModel.effects,
+          screenTitle = screenTitle,
+          noItemsString = noItemsString,
+          switchString = switchString,
+          searchQueryHint = searchQueryHint,
+          switchIsChecked = switchIsChecked,
+          onSwitchChanged = { isChecked ->
+            pageViewModel.actions.offer(Action.UserClickedShowAllToggle(isChecked))
+          },
+          onItemClick = { pageViewModel.actions.offer(Action.OnItemClick(it)) },
+          onItemLongClick = { pageViewModel.actions.offer(Action.OnItemLongClick(it)) }
+        )
+      }
+    }
   }
 
   override fun onDestroyView() {

core/src/main/java/org/kiwix/kiwixmobile/core/page/PageListItem.kt

@@ -0,0 +1,86 @@
+/*
+ * Kiwix Android
+ * Copyright (c) 2025 Kiwix <android.kiwix.org>
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+package org.kiwix.kiwixmobile.core.page
+
+import androidx.compose.foundation.ExperimentalFoundationApi
+import androidx.compose.foundation.Image
+import androidx.compose.foundation.background
+import androidx.compose.foundation.combinedClickable
+import androidx.compose.foundation.layout.Row
+import androidx.compose.foundation.layout.Spacer
+import androidx.compose.foundation.layout.fillMaxWidth
+import androidx.compose.foundation.layout.padding
+import androidx.compose.foundation.layout.size
+import androidx.compose.foundation.layout.width
+import androidx.compose.material3.MaterialTheme
+import androidx.compose.material3.Text
+import androidx.compose.runtime.Composable
+import androidx.compose.ui.Alignment
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.res.painterResource
+import androidx.compose.ui.res.stringResource
+import androidx.compose.ui.text.style.TextOverflow
+import org.kiwix.kiwixmobile.core.R
+import org.kiwix.kiwixmobile.core.downloader.model.Base64String
+import org.kiwix.kiwixmobile.core.downloader.model.toPainter
+import org.kiwix.kiwixmobile.core.page.adapter.Page
+import org.kiwix.kiwixmobile.core.utils.ComposeDimens.EIGHT_DP
+import org.kiwix.kiwixmobile.core.utils.ComposeDimens.PAGE_LIST_ITEM_FAVICON_SIZE
+import org.kiwix.kiwixmobile.core.utils.ComposeDimens.SIXTEEN_DP
+
+@OptIn(ExperimentalFoundationApi::class)
+@Composable
+fun PageListItem(
+  page: Page,
+  onClick: () -> Unit,
+  onLongClick: () -> Unit
+) {
+  Row(
+    modifier = Modifier
+      .fillMaxWidth()
+      .combinedClickable(onClick = onClick, onLongClick = onLongClick)
+      .background(MaterialTheme.colorScheme.surface)
+      .padding(
+        horizontal = SIXTEEN_DP,
+        vertical = EIGHT_DP
+      ),
+    verticalAlignment = Alignment.CenterVertically
+  ) {
+    Image(
+      painter = if (page.isSelected) {
+        painterResource(id = R.drawable.ic_check_circle_blue_24dp)
+      } else {
+        Base64String(page.favicon).toPainter()
+      },
+      contentDescription = stringResource(R.string.fav_icon),
+      modifier = Modifier
+        .size(PAGE_LIST_ITEM_FAVICON_SIZE)
+    )
+
+    Spacer(modifier = Modifier.width(SIXTEEN_DP))
+
+    Text(
+      text = page.title,
+      style = MaterialTheme.typography.bodyLarge,
+      modifier = Modifier.weight(1f),
+      maxLines = 1,
+      overflow = TextOverflow.Ellipsis
+    )
+  }
+}

core/src/main/java/org/kiwix/kiwixmobile/core/page/PageScreen.kt

@@ -0,0 +1,137 @@
+/*
+ * Kiwix Android
+ * Copyright (c) 2025 Kiwix <android.kiwix.org>
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+package org.kiwix.kiwixmobile.core.page
+
+import androidx.activity.compose.LocalActivity
+import androidx.compose.foundation.layout.Box
+import androidx.compose.foundation.layout.Column
+import androidx.compose.foundation.layout.Row
+import androidx.compose.foundation.layout.fillMaxWidth
+import androidx.compose.foundation.layout.padding
+import androidx.compose.foundation.lazy.LazyColumn
+import androidx.compose.foundation.lazy.items
+import androidx.compose.material3.ExperimentalMaterial3Api
+import androidx.compose.material3.MaterialTheme
+import androidx.compose.material3.Scaffold
+import androidx.compose.material3.Switch
+import androidx.compose.material3.Text
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.LaunchedEffect
+import androidx.compose.runtime.getValue
+import androidx.compose.runtime.livedata.observeAsState
+import androidx.compose.ui.Alignment
+import androidx.compose.ui.Modifier
+import androidx.lifecycle.MutableLiveData
+import io.reactivex.processors.PublishProcessor
+import org.kiwix.kiwixmobile.core.base.SideEffect
+import org.kiwix.kiwixmobile.core.extensions.ActivityExtensions.isCustomApp
+import org.kiwix.kiwixmobile.core.main.CoreMainActivity
+import org.kiwix.kiwixmobile.core.page.adapter.Page
+import org.kiwix.kiwixmobile.core.page.history.adapter.HistoryListItem.DateItem
+import org.kiwix.kiwixmobile.core.page.viewmodel.PageState
+import org.kiwix.kiwixmobile.core.ui.components.KiwixAppBar
+import org.kiwix.kiwixmobile.core.ui.theme.KiwixTheme
+import org.kiwix.kiwixmobile.core.utils.ComposeDimens.EIGHT_DP
+import org.kiwix.kiwixmobile.core.utils.ComposeDimens.SIXTEEN_DP
+
+@Suppress("LongParameterList", "IgnoredReturnValue", "UnusedParameter")
+@OptIn(ExperimentalMaterial3Api::class)
+@Composable
+fun PageScreen(
+  pageState: MutableLiveData<out PageState<out Page>>,
+  effects: PublishProcessor<SideEffect<*>>,
+  screenTitle: Int,
+  noItemsString: String,
+  switchString: String,
+  searchQueryHint: String,
+  switchIsChecked: Boolean,
+  onSwitchChanged: (Boolean) -> Unit,
+  onItemClick: (Page) -> Unit,
+  onItemLongClick: (Page) -> Unit
+) {
+  val context = LocalActivity.current as CoreMainActivity
+
+  val state by pageState.observeAsState()
+
+  LaunchedEffect(Unit) {
+    effects.subscribe { it.invokeWith(context) }
+  }
+
+  KiwixTheme {
+    Scaffold(
+      topBar = {
+        Column {
+          KiwixAppBar(
+            titleId = screenTitle,
+            navigationIcon = {},
+          )
+          if (!context.isCustomApp()) {
+            Row(
+              modifier = Modifier
+                .fillMaxWidth()
+                .padding(horizontal = SIXTEEN_DP, vertical = EIGHT_DP),
+              verticalAlignment = Alignment.CenterVertically
+            ) {
+              Text(switchString, modifier = Modifier.weight(1f))
+              Switch(checked = switchIsChecked, onCheckedChange = onSwitchChanged)
+            }
+          }
+        }
+      }
+    ) { padding ->
+      val items = state?.visiblePageItems.orEmpty()
+      Box(modifier = Modifier.padding(padding)) {
+        if (items.isEmpty()) {
+          Text(
+            text = noItemsString,
+            style = MaterialTheme.typography.headlineSmall,
+            modifier = Modifier.align(Alignment.Center)
+          )
+        } else {
+          LazyColumn {
+            items(items) { item ->
+              when (item) {
+                is Page -> {
+                  PageListItem(
+                    page = item,
+                    onClick = { onItemClick(item) },
+                    onLongClick = { onItemLongClick(item) }
+                  )
+                }
+
+                is DateItem -> {
+                  DateItemText(item)
+                }
+              }
+            }
+          }
+        }
+      }
+    }
+  }
+}
+
+@Composable
+fun DateItemText(dateItem: DateItem) {
+  Text(
+    text = dateItem.dateString,
+    style = MaterialTheme.typography.bodySmall,
+    modifier = Modifier.padding(SIXTEEN_DP)
+  )
+}

core/src/main/java/org/kiwix/kiwixmobile/core/page/bookmark/BookmarksFragment.kt

@@ -16,7 +16,7 @@ class BookmarksFragment : PageFragment() {
     PageAdapter(PageItemDelegate(this))
   }
 
-  override val screenTitle: String by lazy { getString(R.string.bookmarks) }
+  override val screenTitle: Int by lazy { R.string.bookmarks }
   override val noItemsString: String by lazy { getString(R.string.no_bookmarks) }
   override val switchString: String by lazy { getString(R.string.bookmarks_from_current_book) }
   override val deleteIconTitle: String by lazy {

core/src/main/java/org/kiwix/kiwixmobile/core/page/history/HistoryFragment.kt

@@ -21,7 +21,7 @@ class HistoryFragment : PageFragment() {
 
   override val noItemsString: String by lazy { getString(R.string.no_history) }
   override val switchString: String by lazy { getString(R.string.history_from_current_book) }
-  override val screenTitle: String by lazy { getString(R.string.history) }
+  override val screenTitle: Int by lazy { R.string.history }
   override val deleteIconTitle: String by lazy {
     getString(R.string.pref_clear_all_history_title)
   }

core/src/main/java/org/kiwix/kiwixmobile/core/page/notes/NotesFragment.kt

@@ -30,8 +30,7 @@ import org.kiwix.kiwixmobile.core.page.notes.viewmodel.NotesViewModel
 class NotesFragment : PageFragment() {
   override val pageViewModel by lazy { viewModel<NotesViewModel>(viewModelFactory) }
 
-  override val screenTitle: String
-    get() = getString(R.string.pref_notes)
+  override val screenTitle: Int get() = R.string.pref_notes
 
   override val pageAdapter: PageAdapter by lazy {
     PageAdapter(PageDelegate.PageItemDelegate(this))

core/src/main/java/org/kiwix/kiwixmobile/core/utils/ComposeDimens.kt

@@ -106,4 +106,7 @@ object ComposeDimens {
   val HELP_SCREEN_ITEM_TITLE_TEXT_SIZE = 20.sp
   val HELP_SCREEN_ITEM_TITLE_LETTER_SPACING = 0.0125.em
   val HELP_SCREEN_ARROW_ICON_SIZE = 35.dp
+
+  // Page dimens
+  val PAGE_LIST_ITEM_FAVICON_SIZE = 40.dp
 }