Component

Add:
- Contoh Flatlist untuk tampilan yang membutuhkan load data

# No Issue

app/(application)/coba/double-scroll.tsx

@@ -0,0 +1,258 @@
+// File: src/screens/EventDetailScreen.tsx
+
+import LeftButtonCustom from "@/components/Button/BackButton";
+import { MainColor } from "@/constants/color-palet";
+import React, { useState, useEffect } from "react";
+import {
+  FlatList,
+  View,
+  Text,
+  Image,
+  StyleSheet,
+  ActivityIndicator,
+} from "react-native";
+import { SafeAreaView } from "react-native-safe-area-context";
+
+// === TYPES ===
+type Participant = {
+  id: number;
+  name: string;
+  avatar: string;
+};
+
+type EventDetail = {
+  id: number;
+  title: string;
+  description: string;
+  date: string;
+  location: string;
+  organizer: string;
+};
+
+// === KOMPONEN UTAMA ===
+const EventDetailScreen: React.FC = () => {
+  const [participants, setParticipants] = useState<Participant[]>([]);
+  const [loading, setLoading] = useState<boolean>(true);
+  const [loadingMore, setLoadingMore] = useState<boolean>(false);
+
+  // Data event
+  const event: EventDetail = {
+    id: 1,
+    title: "Workshop React Native & Expo",
+    description:
+      "Pelatihan intensif pengembangan aplikasi mobile menggunakan React Native, Expo, dan TypeScript. Cocok untuk developer tingkat menengah.",
+    date: "Sabtu, 5 April 2025 | 09:00 - 16:00",
+    location: "Gedung Teknologi, Jakarta Selatan",
+    organizer: "DevCommunity Indonesia",
+  };
+
+  // Simulasi API: generate data dummy
+  const generateParticipants = (
+    startId: number,
+    count: number
+  ): Participant[] => {
+    return Array.from({ length: count }, (_, i) => {
+      const id = startId + i;
+      return {
+        id,
+        name: `Peserta ${id}`,
+        avatar: `https://i.pravatar.cc/150?img=${(id % 70) + 1}`, // 70 gambar unik
+      };
+    });
+  };
+
+  // Load data awal
+  useEffect(() => {
+    const loadInitial = () => {
+      setTimeout(() => {
+        const initialData = generateParticipants(1, 20); // 20 peserta pertama
+        setParticipants(initialData);
+        setLoading(false);
+      }, 800);
+    };
+
+    loadInitial();
+  }, []);
+
+  // Load lebih banyak peserta saat scroll ke bawah
+  const loadMore = () => {
+    if (loadingMore || participants.length >= 200) return; // Batas 200 peserta
+
+    setLoadingMore(true);
+    setTimeout(() => {
+      const nextId = participants.length + 1;
+      const newData = generateParticipants(nextId, 10); // Tambah 10 peserta
+      setParticipants((prev) => [...prev, ...newData]);
+      setLoadingMore(false);
+    }, 1000);
+  };
+
+  // Render footer: loading indicator
+  const renderFooter = () => {
+    if (!loadingMore) return null;
+    return (
+      <View style={styles.footer}>
+        <ActivityIndicator size="small" color="#007AFF" />
+        <Text style={styles.loadingText}> Memuat peserta berikutnya...</Text>
+      </View>
+    );
+  };
+
+  // Render header: detail event + info jumlah peserta
+  const renderHeader = () => (
+    <>
+      <View style={styles.headerContainer}>
+        <LeftButtonCustom path={"/"} />
+        <Text style={styles.title}>{event.title}</Text>
+        <Text style={styles.info}>📅 {event.date}</Text>
+        <Text style={styles.info}>📍 {event.location}</Text>
+        <Text style={styles.info}>👤 {event.organizer}</Text>
+        <Text style={styles.description}>{event.description}</Text>
+
+        <View style={styles.divider} />
+
+        <Text style={styles.sectionTitle}>
+          Daftar Peserta ({participants.length})
+        </Text>
+      </View>
+
+      {/* Sub-header tambahan jika perlu */}
+      {participants.length === 0 ? (
+        <Text style={styles.empty}>Belum ada peserta yang terdaftar.</Text>
+      ) : null}
+    </>
+  );
+
+  // Loading awal
+  if (loading) {
+    return (
+      <SafeAreaView style={styles.container}>
+        <ActivityIndicator size="large" color="#007AFF" style={styles.loader} />
+      </SafeAreaView>
+    );
+  }
+
+  return (
+    <>
+      <FlatList
+        data={participants}
+        keyExtractor={(item) => item.id.toString()}
+        ListHeaderComponent={renderHeader}
+        ListFooterComponent={renderFooter}
+        onEndReached={loadMore}
+        onEndReachedThreshold={0.5}
+        renderItem={({ item }) => (
+          <View style={styles.participantItem}>
+            <Image source={{ uri: item.avatar }} style={styles.avatar} />
+            <Text style={styles.participantName}>{item.name}</Text>
+          </View>
+        )}
+        initialNumToRender={10}
+        maxToRenderPerBatch={5}
+        windowSize={7}
+        showsVerticalScrollIndicator={false}
+        ListEmptyComponent={
+          <Text style={styles.empty}>Tidak ada peserta.</Text>
+        }
+      />
+
+      <SafeAreaView
+        edges={["bottom"]}
+        style={{ backgroundColor: MainColor.darkblue }}
+      />
+    </>
+  );
+};
+
+export default EventDetailScreen;
+
+// === STYLES ===
+const styles = StyleSheet.create({
+  container: {
+    flex: 1,
+    backgroundColor: "#f8f9fa",
+  },
+  loader: {
+    marginTop: 20,
+  },
+  headerContainer: {
+    padding: 16,
+    backgroundColor: "#ffffff",
+    borderBottomWidth: 1,
+    borderBottomColor: "#e0e0e0",
+  },
+  title: {
+    fontSize: 24,
+    fontWeight: "bold",
+    color: "#1d1d1d",
+    marginBottom: 8,
+  },
+  info: {
+    fontSize: 16,
+    color: "#444",
+    marginBottom: 4,
+  },
+  description: {
+    fontSize: 14,
+    color: "#666",
+    lineHeight: 20,
+    marginTop: 12,
+  },
+  divider: {
+    height: 1,
+    backgroundColor: "#e0e0e0",
+    marginVertical: 16,
+  },
+  sectionTitle: {
+    fontSize: 18,
+    fontWeight: "600",
+    color: "#1d1d1d",
+    marginBottom: 12,
+  },
+  participantItem: {
+    flexDirection: "row",
+    alignItems: "center",
+    paddingHorizontal: 16,
+    paddingVertical: 12,
+    backgroundColor: "#fff",
+    borderBottomWidth: 1,
+    borderBottomColor: "#f0f0f0",
+  },
+  avatar: {
+    width: 40,
+    height: 40,
+    borderRadius: 20,
+    marginRight: 12,
+  },
+  participantName: {
+    fontSize: 16,
+    color: "#333",
+  },
+  footer: {
+    flexDirection: "row",
+    justifyContent: "center",
+    alignItems: "center",
+    padding: 16,
+    backgroundColor: "#f8f9fa",
+  },
+  loadingText: {
+    color: "#555",
+    fontSize: 14,
+  },
+  empty: {
+    textAlign: "center",
+    color: "#999",
+    fontStyle: "italic",
+    padding: 16,
+    backgroundColor: "#fff",
+    fontSize: 14,
+  },
+  subHeader: {
+    paddingHorizontal: 16,
+    paddingVertical: 8,
+    backgroundColor: "#f1f1f1",
+    fontSize: 14,
+    color: "#666",
+    fontStyle: "italic",
+  },
+});

app/(application)/coba/index.tsx

@@ -8,7 +8,9 @@ import {
   ScrollView,
 } from "react-native";
 import { Ionicons } from "@expo/vector-icons";
-import { router } from "expo-router";
+import { router, Stack } from "expo-router";
+import EventDetailScreen from "./double-scroll";
+import LeftButtonCustom from "@/components/Button/BackButton";
 
 const { width } = Dimensions.get("window");
 
@@ -16,7 +18,9 @@ const { width } = Dimensions.get("window");
 const HomeScreen = () => (
   <View style={styles.screen}>
     <Text style={styles.screenTitle}>Selamat Datang!</Text>
-    <Text style={styles.screenText}>Ini adalah halaman utama aplikasi Anda</Text>
+    <Text style={styles.screenText}>
+      Ini adalah halaman utama aplikasi Anda
+    </Text>
   </View>
 );
 const SearchScreen = () => (
@@ -65,9 +69,7 @@ const CustomTab = ({ icon, label, isActive, onPress }: any) => (
 
 // Main Custom Tab Navigator
 const CustomTabNavigator = () => {
-  const [activeTab, setActiveTab] = React.useState(
+  const [activeTab, setActiveTab] = React.useState("home");
-    'home'
-  );
   const [showHome, setShowHome] = React.useState(true);
 
   const tabs = [
@@ -97,13 +99,12 @@ const CustomTabNavigator = () => {
     },
   ];
 
-  
   // Function untuk handle tab press
   const handleTabPress = (tabId: string) => {
     setActiveTab(tabId);
     setShowHome(false); // Hide home when any tab is pressed
   };
-  
+
   // Determine which component to show
   const getActiveComponent = () => {
     if (showHome || activeTab === "home") {
@@ -111,38 +112,46 @@ const CustomTabNavigator = () => {
     }
     // const selectedTab = tabs.find((tab) => tab.id === activeTab);
     // return selectedTab ? selectedTab.component : HomeScreen;
-    return HomeScreen
+    return HomeScreen;
   };
 
   const ActiveComponent = getActiveComponent();
 
   return (
-    <View style={styles.container}>
+    <>
-      {/* Content Area */}
+      <Stack.Screen
-      <ScrollView>
+        options={{
-        <View style={styles.content}>
+          title: "Custom Tab Navigator",
-          <ActiveComponent />
+        }}
-        </View>
+      />
-      </ScrollView>
+      <EventDetailScreen />
+    </>
+    // <View style={styles.container}>
+    //   {/* Content Area */}
+    //   <ScrollView>
+    //     <View style={styles.content}>
+    //       <ActiveComponent />
+    //     </View>
+    //   </ScrollView>
 
-      {/* Custom Tab Bar */}
+    //   {/* Custom Tab Bar */}
-      <View style={styles.tabBar}>
+    //   <View style={styles.tabBar}>
-        <View style={styles.tabContainer}>
+    //     <View style={styles.tabContainer}>
-          {tabs.map((e) => (
+    //       {tabs.map((e) => (
-            <CustomTab
+    //         <CustomTab
-              key={e.id}
+    //           key={e.id}
-              icon={activeTab === e.id ? e.activeIcon : e.icon}
+    //           icon={activeTab === e.id ? e.activeIcon : e.icon}
-              label={e.label}
+    //           label={e.label}
-              isActive={activeTab === e.id && !showHome}
+    //           isActive={activeTab === e.id && !showHome}
-              onPress={() => {
+    //           onPress={() => {
-                handleTabPress(e.id);
+    //             handleTabPress(e.id);
-                router.push(e.path as any);
+    //             router.push(e.path as any);
-              }}
+    //           }}
-            />
+    //         />
-          ))}
+    //       ))}
-        </View>
+    //     </View>
-      </View>
+    //   </View>
-    </View>
+    // </View>
   );
 };
 

screens/Authentication/LoginView.tsx

@@ -37,6 +37,7 @@ export default function LoginView() {
     // router.navigate(`/(application)/(user)/portofolio/${id}`)
     // router.navigate(`/(application)/(image)/preview-image/${id}`);
     // router.replace("/(application)/(user)/event/(tabs)");
+    // router.replace("/(application)/coba");
   }
 
   return (