kiwix#4159 migrated Help Fragment to jetpack Compose

app/src/main/java/org/kiwix/kiwixmobile/help/KiwixHelpFragment.kt

@@ -22,6 +22,9 @@ import org.kiwix.kiwixmobile.core.R
 import org.kiwix.kiwixmobile.core.help.HelpFragment
 
 class KiwixHelpFragment : HelpFragment() {
+  override val navHostFragmentId: Int
+    get() = org.kiwix.kiwixmobile.R.id.nav_host_fragment
+
   override fun rawTitleDescriptionMap() =
     if (sharedPreferenceUtil.isPlayStoreBuildWithAndroid11OrAbove()) {
       listOf(

core/build.gradle.kts

@@ -13,6 +13,8 @@ buildscript {
 }
 plugins {
   `android-library`
+  id("org.jetbrains.kotlin.android")
+  id("org.jetbrains.kotlin.plugin.compose") version Versions.org_jetbrains_kotlin_plugin_compose
 }
 plugins.apply(KiwixConfigurationPlugin::class)
 apply(plugin = "io.objectbox")
@@ -26,6 +28,12 @@ android {
       isMinifyEnabled = false
     }
   }
+  buildFeatures {
+    compose = true
+  }
+  composeOptions {
+    kotlinCompilerExtensionVersion = Versions.kotlin_compiler_extension_version
+  }
 }
 
 fun shouldUseLocalVersion() = File(projectDir, "libs").exists()
@@ -63,4 +71,17 @@ dependencies {
   implementation(Libs.kotlinx_coroutines_android)
   implementation(Libs.kotlinx_coroutines_rx3)
   implementation(Libs.zxing)
+
+  implementation(Libs.androidx_compose_material3)
+  implementation(Libs.androidx_activity_compose)
+
+  implementation(Libs.androidx_compose_ui)
+  implementation(platform(Libs.androidx_compose_bom))
+  implementation(Libs.androidx_compose_ui_tooling)
+  implementation(Libs.androidx_compose_runtime_livedata)
+  implementation(Libs.androidx_compose_runtime_rxjava2)
+
+  // For Compose UI Testing
+  androidTestImplementation(Libs.androidx_compose_ui_test_junit4)
+  debugImplementation(Libs.androidx_compose_ui_tooling)
 }

core/src/main/java/org/kiwix/kiwixmobile/core/help/HelpFragment.kt

@@ -17,19 +17,18 @@
  */
 package org.kiwix.kiwixmobile.core.help
 
+import android.content.Context
 import android.os.Bundle
 import android.view.LayoutInflater
 import android.view.View
 import android.view.ViewGroup
-import androidx.appcompat.app.AppCompatActivity
+import android.widget.Toolbar
 import androidx.appcompat.widget.Toolbar
-import androidx.recyclerview.widget.DividerItemDecoration
+import androidx.compose.ui.platform.ComposeView
+import androidx.navigation.Navigation
 import org.kiwix.kiwixmobile.core.R
 import org.kiwix.kiwixmobile.core.base.BaseActivity
 import org.kiwix.kiwixmobile.core.base.BaseFragment
-import org.kiwix.kiwixmobile.core.databinding.FragmentHelpBinding
-import org.kiwix.kiwixmobile.core.error.DiagnosticReportActivity
-import org.kiwix.kiwixmobile.core.extensions.ActivityExtensions.start
 import org.kiwix.kiwixmobile.core.main.CoreMainActivity
 import org.kiwix.kiwixmobile.core.utils.SharedPreferenceUtil
 import javax.inject.Inject
@@ -38,64 +37,71 @@ import javax.inject.Inject
 abstract class HelpFragment : BaseFragment() {
   @Inject
   lateinit var sharedPreferenceUtil: SharedPreferenceUtil
-  private var fragmentHelpBinding: FragmentHelpBinding? = null
-  protected open fun rawTitleDescriptionMap(): List<Pair<Int, Any>> = emptyList()
-  override val fragmentToolbar: Toolbar? by lazy {
-    fragmentHelpBinding?.root?.findViewById(R.id.toolbar)
-  }
-  override val fragmentTitle: String? by lazy { getString(R.string.menu_help) }
 
-  private val titleDescriptionMap by lazy {
-    rawTitleDescriptionMap().associate { (title, description) ->
-      val descriptionValue =
-        when (description) {
-          is String -> description
-          is Int -> resources.getStringArray(description).joinToString(separator = "\n")
-          else -> {
-            throw IllegalArgumentException("Invalid description resource type for title: $title")
-          }
-        }
+  protected abstract val navHostFragmentId: Int
 
-      getString(title) to descriptionValue
+  // Instead of keeping the XML binding, we now directly return a ComposeView.
+  protected open fun createFragmentView(
+    inflater: LayoutInflater,
+    container: ViewGroup?
+  ): View {
+    return ComposeView(requireContext()).apply {
+      setContent {
+        // Create the helpScreen data using your rawTitleDescriptionMap.
+        val helpScreenData = transformToHelpScreenData(
+          requireContext(),
+          rawTitleDescriptionMap()
+        )
+        // Retrieve the NavController if your composable needs it.
+        val navController = Navigation.findNavController(requireActivity(), navHostFragmentId)
+        // Call your HelpScreen composable.
+        HelpScreen(data = helpScreenData, navController = navController)
+      }
     }
   }
 
+  // Each subclass is responsible for providing its own raw data.
+  protected open fun rawTitleDescriptionMap(): List<Pair<Int, Any>> = emptyList()
+
+  // The following properties are now optional – if no longer use an XML toolbar or title,
+  // we can remove or update these accordingly.
+  override val fragmentToolbar: Toolbar? by lazy {
+    // Already Applied ad TopAppBAr in scaffold in composable
+    null
+  }
+  override val fragmentTitle: String? by lazy { getString(R.string.menu_help) }
+
   override fun inject(baseActivity: BaseActivity) {
     (baseActivity as CoreMainActivity).cachedComponent.inject(this)
   }
 
+  // Remove or adjust onViewCreated if you no longer need to manipulate XML-based views.
   override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
     super.onViewCreated(view, savedInstanceState)
-    val activity = requireActivity() as AppCompatActivity
-    fragmentHelpBinding?.activityHelpDiagnosticImageView?.setOnClickListener {
-      sendDiagnosticReport()
-    }
-    fragmentHelpBinding?.activityHelpDiagnosticTextView?.setOnClickListener {
-      sendDiagnosticReport()
-    }
-    fragmentHelpBinding?.activityHelpRecyclerView?.addItemDecoration(
-      DividerItemDecoration(activity, DividerItemDecoration.VERTICAL)
-    )
-    fragmentHelpBinding?.activityHelpRecyclerView?.adapter = HelpAdapter(titleDescriptionMap)
+    // Any additional logic that is independent of the XML layout can be kept here.
   }
 
   override fun onCreateView(
     inflater: LayoutInflater,
     container: ViewGroup?,
     savedInstanceState: Bundle?
-  ): View? {
-    fragmentHelpBinding =
-      FragmentHelpBinding.inflate(inflater, container, false)
-    return fragmentHelpBinding?.root
-  }
+  ): View? = createFragmentView(inflater, container)
+}
 
-  private fun sendDiagnosticReport() {
-    requireActivity().start<DiagnosticReportActivity>()
-  }
-
-  override fun onDestroyView() {
-    super.onDestroyView()
-    fragmentHelpBinding?.root?.removeAllViews()
-    fragmentHelpBinding = null
+// Util function to modify the data accordingly
+fun transformToHelpScreenData(
+  context: Context,
+  rawTitleDescriptionMap: List<Pair<Int, Any>>
+): List<HelpScreenItemDataClass> {
+  return rawTitleDescriptionMap.map { (titleResId, description) ->
+    val title = context.getString(titleResId)
+    val descriptionValue = when (description) {
+      is String -> description
+      is Int -> context.resources.getStringArray(description).joinToString(separator = "\n")
+      else -> {
+        throw IllegalArgumentException("Invalid description resource type for title: $titleResId")
+      }
+    }
+    HelpScreenItemDataClass(title, descriptionValue)
   }
 }

core/src/main/java/org/kiwix/kiwixmobile/core/help/HelpScreen.kt

@@ -0,0 +1,152 @@
+/*
+ * 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.help
+
+import android.app.Activity
+import androidx.compose.foundation.Image
+import androidx.compose.foundation.clickable
+import androidx.compose.foundation.isSystemInDarkTheme
+import androidx.compose.foundation.layout.Arrangement
+import androidx.compose.foundation.layout.Column
+import androidx.compose.foundation.layout.Row
+import androidx.compose.foundation.layout.fillMaxSize
+import androidx.compose.foundation.layout.fillMaxWidth
+import androidx.compose.foundation.layout.padding
+import androidx.compose.foundation.lazy.LazyColumn
+import androidx.compose.foundation.lazy.itemsIndexed
+
+import androidx.compose.material.icons.Icons
+import androidx.compose.material.icons.filled.ArrowBack
+import androidx.compose.material3.ExperimentalMaterial3Api
+import androidx.compose.material3.HorizontalDivider
+import androidx.compose.material3.Icon
+import androidx.compose.material3.IconButton
+import androidx.compose.material3.Scaffold
+import androidx.compose.material3.Text
+import androidx.compose.material3.TopAppBar
+import androidx.compose.material3.TopAppBarDefaults
+import androidx.compose.runtime.Composable
+import androidx.compose.ui.Alignment
+
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.graphics.Color
+import androidx.compose.ui.platform.LocalContext
+import androidx.compose.ui.res.colorResource
+import androidx.compose.ui.res.painterResource
+import androidx.compose.ui.res.stringResource
+import androidx.compose.ui.unit.dp
+import androidx.compose.ui.unit.sp
+
+import androidx.navigation.NavController
+import org.kiwix.kiwixmobile.core.R
+import org.kiwix.kiwixmobile.core.error.DiagnosticReportActivity
+import org.kiwix.kiwixmobile.core.extensions.ActivityExtensions.start
+
+@OptIn(ExperimentalMaterial3Api::class)
+@Composable
+fun HelpScreen(
+  modifier: Modifier = Modifier,
+  data: List<HelpScreenItemDataClass>,
+  navController: NavController
+) {
+  val context = LocalContext.current
+
+  val isDarkTheme = isSystemInDarkTheme()
+
+  val backgroundColor =
+    if (isDarkTheme) colorResource(id = R.color.mine_shaft_gray900) else Color.White
+  val dividerColor =
+    if (isDarkTheme) colorResource(id = R.color.mine_shaft_gray600) else colorResource(
+      id = R.color.mine_shaft_gray350
+    )
+
+  Scaffold(
+    modifier = Modifier.fillMaxSize(),
+    topBar = {
+      TopAppBar(
+        title = {
+          Text(
+            modifier = modifier.padding(start = 16.dp),
+            text = stringResource(id = R.string.menu_help),
+            color = Color.White // Set title text color to white
+          )
+        },
+        navigationIcon = {
+          IconButton(onClick = navController::popBackStack) {
+            Icon(
+              imageVector = Icons.Filled.ArrowBack,
+              contentDescription = "Back",
+              tint = Color.White // Set navigation icon color to white
+            )
+          }
+        },
+        colors = TopAppBarDefaults.topAppBarColors(
+          containerColor = Color.Black // Set top app bar background color to black
+        )
+      )
+    },
+    containerColor = backgroundColor
+  ) {
+
+    Column(
+      modifier = Modifier
+        .padding(it)
+    ) {
+      Row(
+        modifier = Modifier
+          .fillMaxWidth()
+          .clickable {
+            (context as? Activity)?.start<DiagnosticReportActivity>()
+          },
+        verticalAlignment = Alignment.CenterVertically,
+        horizontalArrangement = Arrangement.Start
+      ) {
+        Image(
+          painter = painterResource(R.drawable.ic_feedback_orange_24dp),
+          contentDescription = "Feedback",
+          modifier = Modifier
+            .padding(16.dp)
+        )
+
+        Text(
+          text = stringResource(R.string.send_report),
+          color = if (isDarkTheme) Color.LightGray else Color.DarkGray,
+          fontSize = 18.sp
+        )
+      }
+
+      LazyColumn(
+        modifier = Modifier
+          .fillMaxWidth()
+      ) {
+        itemsIndexed(data, key = { _, item -> item.title }) { index, item ->
+          HorizontalDivider(
+            color = dividerColor
+          )
+          HelpScreenItem(data = item)
+        }
+        item {
+          HorizontalDivider(
+            color = dividerColor
+          )
+        }
+      }
+    }
+  }
+}

core/src/main/java/org/kiwix/kiwixmobile/core/help/HelpScreenItem.kt

@@ -0,0 +1,125 @@
+/*
+ * 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.help
+
+import androidx.compose.animation.AnimatedVisibility
+import androidx.compose.animation.core.animateFloatAsState
+import androidx.compose.animation.core.tween
+import androidx.compose.foundation.clickable
+import androidx.compose.foundation.interaction.MutableInteractionSource
+import androidx.compose.foundation.isSystemInDarkTheme
+import androidx.compose.foundation.layout.Arrangement
+import androidx.compose.foundation.layout.Box
+import androidx.compose.foundation.layout.Column
+import androidx.compose.foundation.layout.Row
+import androidx.compose.foundation.layout.Spacer
+import androidx.compose.foundation.layout.fillMaxWidth
+import androidx.compose.foundation.layout.height
+import androidx.compose.foundation.layout.padding
+import androidx.compose.foundation.layout.size
+import androidx.compose.material.icons.Icons
+import androidx.compose.material.icons.filled.KeyboardArrowDown
+import androidx.compose.material3.Icon
+import androidx.compose.material3.Text
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.getValue
+import androidx.compose.runtime.mutableStateOf
+import androidx.compose.runtime.remember
+import androidx.compose.runtime.setValue
+import androidx.compose.ui.Alignment
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.graphics.Color
+import androidx.compose.ui.graphics.graphicsLayer
+import androidx.compose.ui.text.font.FontWeight
+import androidx.compose.ui.text.style.TextAlign
+import androidx.compose.ui.unit.dp
+import androidx.compose.ui.unit.sp
+
+@Composable
+fun HelpScreenItem(
+  modifier: Modifier = Modifier,
+  data: HelpScreenItemDataClass,
+  initiallyOpened: Boolean = false
+) {
+  var isOpen by remember { mutableStateOf(initiallyOpened) }
+  val isDarkTheme = isSystemInDarkTheme()
+  val itemColor = if (isDarkTheme) Color.White else Color.Black
+  val arrowRotation by animateFloatAsState(
+    targetValue = if (isOpen) 180f else 0f,
+    animationSpec = tween(300),
+    label = "arrowRotation"
+  )
+
+  val interactionSource = remember(::MutableInteractionSource)
+
+  Column(
+    modifier = modifier
+      .fillMaxWidth()
+      .padding(top = 12.dp),
+    verticalArrangement = Arrangement.Center,
+    horizontalAlignment = Alignment.CenterHorizontally
+  ) {
+    Row(
+      horizontalArrangement = Arrangement.SpaceBetween,
+      verticalAlignment = Alignment.CenterVertically,
+      modifier = Modifier
+        .fillMaxWidth()
+        .clickable(interactionSource = interactionSource, indication = null, onClick = {
+          isOpen = !isOpen
+        })
+        .padding(horizontal = 16.dp)
+    ) {
+      Text(
+        text = data.title,
+        fontSize = 18.sp,
+        color = itemColor,
+        fontWeight = FontWeight.SemiBold
+      )
+      Icon(
+        imageVector = Icons.Default.KeyboardArrowDown,
+        contentDescription = "Open or Close DropDown",
+        modifier = Modifier
+          .graphicsLayer {
+            rotationZ = arrowRotation
+          }
+          .size(46.dp),
+        tint = itemColor
+      )
+    }
+
+    Spacer(modifier = Modifier.height(12.dp))
+
+    AnimatedVisibility(visible = isOpen) {
+      Box(
+        contentAlignment = Alignment.Center,
+        modifier = Modifier
+          .fillMaxWidth()
+          .padding(start = 16.dp, end = 16.dp)
+      ) {
+        Text(
+          text = data.description,
+          fontSize = 16.sp,
+          textAlign = TextAlign.Left,
+          color = itemColor,
+          modifier = Modifier.padding(bottom = 8.dp)
+        )
+      }
+    }
+  }
+}

core/src/main/java/org/kiwix/kiwixmobile/core/help/HelpScreenItemDataClass.kt

@@ -0,0 +1,22 @@
+/*
+ * 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.help
+
+//same as HelpItem data class in HelpAdapter.kt
+data class HelpScreenItemDataClass(val title: String, val description: String)