[ContributorsScreen] Display the total number of persons in ContributorsScreen

app-ios/Sources/ContributorFeature/ContributorsCountItem.swift

@@ -0,0 +1,49 @@
+import SwiftUI
+import Theme
+
+struct ContributorsCountItem: View {
+    let totalContributor: Int
+    let duration: Double = 1.0
+    @State private var tracker = 0
+
+    var body: some View {
+        VStack(alignment: .leading) {
+
+            Text(String(localized: "Total", bundle: .module))
+                .textStyle(.titleMedium)
+                .foregroundStyle(AssetColors.Surface.onSurfaceVariant.swiftUIColor)
+                .frame(maxWidth: .infinity, alignment: .leading)
+
+            HStack {
+                Text("\(tracker)")
+                    .textStyle(.headlineLarge)
+                    .foregroundStyle(AssetColors.Surface.onSurface.swiftUIColor)
+                    .onAppear() {
+                        animate()
+                    }
+
+                Text(String(localized: "Person", bundle: .module))
+                    .textStyle(.headlineSmall)
+                    .foregroundStyle(AssetColors.Surface.onSurface.swiftUIColor)
+            }
+
+            Spacer()
+                .frame(height: 16)
+            Divider()
+        }
+    }
+
+    func animate() {
+        let interval = duration / Double(totalContributor)
+        Timer.scheduledTimer(withTimeInterval: interval, repeats: true) { time in
+            tracker += 1
+            if tracker == totalContributor {
+                time.invalidate()
+            }
+        }
+    }
+}
+
+#Preview {
+    ContributorsCountItem(totalContributor: 112)
+}

app-ios/Sources/ContributorFeature/KmpPresenterContributorView.swift

@@ -27,6 +27,12 @@ struct KmpPresenterContributorView: View {
                 if let existsState = state as? Exists {
                     ScrollView {
                         LazyVStack(spacing: 0) {
+
+                            ContributorsCountItem(totalContributor: existsState.contributors.count)
+                                .frame(maxWidth: .infinity)
+                                .padding(.horizontal, 16)
+                                .padding(.vertical, 10)
+
                             ForEach(existsState.contributors, id: \.id) { value in
                                 let contributor = Model.Contributor(
                                     id: Int(value.id),

app-ios/Sources/ContributorFeature/Resources/Localizable.xcstrings

@@ -16,7 +16,39 @@
           }
         }
       }
+    },
+    "Person" : {
+      "localizations" : {
+        "en" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "persons"
+          }
+        },
+        "ja" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "人"
+          }
+        }
+      }
+    },
+    "Total" : {
+      "localizations" : {
+        "en" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "Total"
+          }
+        },
+        "ja" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "合計"
+          }
+        }
+      }
     }
   },
   "version" : "1.0"
-}
+}

app-ios/Sources/ContributorFeature/SwiftUIContributorView.swift

@@ -14,6 +14,12 @@ struct SwiftUIContributorView: View {
             if let contributors = store.contributors {
                 ScrollView {
                     LazyVStack(spacing: 0) {
+
+                        ContributorsCountItem(totalContributor: contributors.count)
+                            .frame(maxWidth: .infinity)
+                            .padding(.horizontal, 16)
+                            .padding(.vertical, 10)
+
                         ForEach(contributors, id: \.id) { contributor in
                             ContributorListItemView(contributor: contributor) { url in
                                 store.send(.view(.contributorButtonTapped(url)))

core/testing/src/main/java/io/github/droidkaigi/confsched/testing/robot/ContributorsScreenRobot.kt

@@ -5,10 +5,12 @@ import androidx.compose.ui.test.assertIsDisplayed
 import androidx.compose.ui.test.assertTextEquals
 import androidx.compose.ui.test.hasTestTag
 import androidx.compose.ui.test.hasText
+import androidx.compose.ui.test.isDisplayed
 import androidx.compose.ui.test.performScrollToIndex
 import io.github.droidkaigi.confsched.contributors.ContributorsItemTestTagPrefix
 import io.github.droidkaigi.confsched.contributors.ContributorsScreen
 import io.github.droidkaigi.confsched.contributors.ContributorsTestTag
+import io.github.droidkaigi.confsched.contributors.ContributorsTotalCountTestTag
 import io.github.droidkaigi.confsched.contributors.component.ContributorsItemImageTestTagPrefix
 import io.github.droidkaigi.confsched.contributors.component.ContributorsUserNameTextTestTagPrefix
 import io.github.droidkaigi.confsched.droidkaigiui.Inject
@@ -80,6 +82,14 @@ class ContributorsScreenRobot @Inject constructor(
             .assertCountAtLeast(2)
     }
 
+    fun checkContributorTotalCountDisplayed() {
+        // Check contributors total count is being displayed
+        composeTestRule
+            .onNode(hasTestTag(ContributorsTotalCountTestTag))
+            .assertExists()
+            .isDisplayed()
+    }
+
     fun checkDoesNotFirstContributorItemDisplayed() {
         val contributor = Contributor.fakes().first()
         composeTestRule

feature/contributors/src/androidUnitTest/kotlin/io/github/droidkaigi/confsched/contributors/ContributorsScreenTest.kt

@@ -50,6 +50,11 @@ class ContributorsScreenTest(private val testCase: DescribedBehavior<Contributor
                                 checkShowFirstAndSecondContributors()
                             }
                         }
+                        itShould("show contributors total count") {
+                            captureScreenWithChecks {
+                                checkContributorTotalCountDisplayed()
+                            }
+                        }
 
                         describe("when scroll to index 10") {
                             doIt {

feature/contributors/src/commonMain/composeResources/values-ja/strings.xml

@@ -1,4 +1,6 @@
 <?xml version="1.0" encoding="utf-8"?>
 <resources>
     <string name="contributor_title">コントリビューター</string>
+    <string name="contributor_total">合計</string>
+    <string name="contributor_person">人</string>
 </resources>

feature/contributors/src/commonMain/composeResources/values/strings.xml

@@ -1,4 +1,6 @@
 <?xml version="1.0" encoding="utf-8"?>
 <resources>
     <string name="contributor_title">Contributor</string>
+    <string name="contributor_total">Total</string>
+    <string name="contributor_person">persons</string>
 </resources>

feature/contributors/src/commonMain/kotlin/io/github/droidkaigi/confsched/contributors/ContributorsScreen.kt

@@ -24,6 +24,7 @@ import androidx.navigation.NavGraphBuilder
 import androidx.navigation.compose.composable
 import conference_app_2024.feature.contributors.generated.resources.contributor_title
 import io.github.droidkaigi.confsched.compose.rememberEventFlow
+import io.github.droidkaigi.confsched.contributors.component.ContributorsCountItem
 import io.github.droidkaigi.confsched.contributors.component.ContributorsItem
 import io.github.droidkaigi.confsched.droidkaigiui.SnackbarMessageEffect
 import io.github.droidkaigi.confsched.droidkaigiui.UserMessageStateHolder
@@ -36,6 +37,7 @@ const val contributorsScreenRoute = "contributors"
 const val ContributorsScreenTestTag = "ContributorsScreenTestTag"
 const val ContributorsTestTag = "ContributorsTestTag"
 const val ContributorsItemTestTagPrefix = "ContributorsItemTestTag:"
+const val ContributorsTotalCountTestTag = "ContributorsTotalCountTestTag"
 
 fun NavGraphBuilder.contributorsScreens(
     onNavigationIconClick: () -> Unit,
@@ -161,6 +163,14 @@ private fun Contributors(
         modifier = modifier.testTag(ContributorsTestTag),
         contentPadding = contentPadding,
     ) {
+        item {
+            ContributorsCountItem(
+                totalContributor = contributors.size,
+                modifier = Modifier
+                    .fillMaxWidth()
+                    .testTag(ContributorsTotalCountTestTag),
+            )
+        }
         items(contributors) {
             ContributorsItem(
                 contributor = it,

feature/contributors/src/commonMain/kotlin/io/github/droidkaigi/confsched/contributors/component/ContributorsCountItem.kt

@@ -0,0 +1,70 @@
+package io.github.droidkaigi.confsched.contributors.component
+
+import androidx.compose.animation.core.EaseOutQuart
+import androidx.compose.animation.core.animateIntAsState
+import androidx.compose.animation.core.tween
+import androidx.compose.foundation.layout.Arrangement
+import androidx.compose.foundation.layout.Column
+import androidx.compose.foundation.layout.Row
+import androidx.compose.foundation.layout.Spacer
+import androidx.compose.foundation.layout.height
+import androidx.compose.foundation.layout.padding
+import androidx.compose.material3.HorizontalDivider
+import androidx.compose.material3.MaterialTheme
+import androidx.compose.material3.Text
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.LaunchedEffect
+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.unit.dp
+import conference_app_2024.feature.contributors.generated.resources.contributor_person
+import conference_app_2024.feature.contributors.generated.resources.contributor_total
+import io.github.droidkaigi.confsched.contributors.ContributorsRes
+import org.jetbrains.compose.resources.stringResource
+
+@Composable
+internal fun ContributorsCountItem(
+    totalContributor: Int,
+    modifier: Modifier = Modifier,
+) {
+    var targetValue by remember { mutableStateOf(0) }
+    val animatedTotalContributor by animateIntAsState(
+        targetValue = targetValue,
+        animationSpec = tween(
+            delayMillis = 300,
+            durationMillis = 1000,
+            easing = EaseOutQuart,
+        ),
+    )
+    LaunchedEffect(totalContributor) {
+        targetValue = totalContributor
+    }
+    Column(
+        modifier = modifier
+            .padding(horizontal = 16.dp, vertical = 10.dp),
+    ) {
+        Text(
+            text = stringResource(ContributorsRes.string.contributor_total),
+            style = MaterialTheme.typography.titleMedium,
+        )
+        Row(
+            horizontalArrangement = Arrangement.spacedBy(6.dp),
+            verticalAlignment = Alignment.Bottom,
+        ) {
+            Text(
+                text = "$animatedTotalContributor",
+                style = MaterialTheme.typography.headlineLarge,
+            )
+            Text(
+                text = stringResource(ContributorsRes.string.contributor_person),
+                style = MaterialTheme.typography.headlineSmall,
+            )
+        }
+        Spacer(modifier = Modifier.height(16.dp))
+        HorizontalDivider()
+    }
+}