deploy model Yolov5 to camera, tts, and bounding box

android/app/src/main/AndroidManifest.xml

@@ -1,10 +1,12 @@
 <manifest xmlns:android="http://schemas.android.com/apk/res/android">
+    <uses-permission android:name="android.permission.INTERNET"/>
     <uses-permission android:name="android.permission.CAMERA"/>
     <uses-permission android:name="android.permission.RECORD_AUDIO"/>
     <application
         android:label="@string/app_name"
         android:name="${applicationName}"
-        android:icon="@mipmap/ic_launcher">
+        android:icon="@mipmap/ic_launcher"
+        android:usesCleartextTraffic="true">
         <activity
             android:name=".MainActivity"
             android:exported="true"

lib/screens/camera_screen.dart

@@ -1,16 +1,36 @@
-import 'package:flutter/material.dart';
+import 'dart:async';
+import 'dart:io';
+import 'dart:typed_data';
+import 'dart:ui' as ui;
+
 import 'package:camera/camera.dart';
+import 'package:flutter/material.dart';
+
+import '../services/tts_service.dart';
+import '../services/yolo_detection_service.dart';
 
 class CameraScreen extends StatefulWidget {
+  const CameraScreen({super.key});
+
   @override
-  _CameraScreenState createState() => _CameraScreenState();
+  State<CameraScreen> createState() => _CameraScreenState();
 }
 
 class _CameraScreenState extends State<CameraScreen> {
   CameraController? controller;
   List<CameraDescription>? cameras;
 
+  final YoloDetectionService _detectionService = YoloDetectionService();
+  final TTSService _tts = TTSService();
+
   bool isRecording = false;
+  bool isDetecting = false;
+  String statusMessage = "Tekan tombol rekam untuk mulai deteksi";
+  List<YoloDetection> detectedObjects = const [];
+  Size? detectionFrameSize;
+  Timer? _detectionTimer;
+  String _lastSpokenMessage = "";
+  DateTime? _lastSpokenAt;
 
   @override
   void initState() {
@@ -19,49 +39,198 @@ class _CameraScreenState extends State<CameraScreen> {
   }
 
   Future<void> initCamera() async {
-    cameras = await availableCameras();
-    controller = CameraController(
-      cameras![0],
-      ResolutionPreset.high,
-    );
+    try {
+      cameras = await availableCameras();
 
-    await controller!.initialize();
-    setState(() {});
+      if (cameras == null || cameras!.isEmpty) {
+        setState(() {
+          statusMessage = "Kamera tidak ditemukan";
+        });
+        await _tts.speak(statusMessage);
+        return;
+      }
+
+      controller = CameraController(
+        cameras![0],
+        ResolutionPreset.high,
+        enableAudio: false,
+      );
+
+      await controller!.initialize();
+
+      if (!mounted) return;
+      setState(() {});
+    } catch (error) {
+      if (!mounted) return;
+      setState(() {
+        statusMessage = "Gagal membuka kamera: $error";
+      });
+      await _tts.speak("Gagal membuka kamera");
+    }
   }
 
-  // 🔴 START RECORD
   Future<void> startRecording() async {
-    if (!controller!.value.isRecordingVideo) {
-      await controller!.startVideoRecording();
+    final CameraController? cameraController = controller;
+    if (cameraController == null ||
+        !cameraController.value.isInitialized ||
+        isRecording) {
+      return;
+    }
+
+    setState(() {
+      isRecording = true;
+      statusMessage = "Deteksi dimulai";
+      detectedObjects = const [];
+      detectionFrameSize = null;
+    });
+    await _tts.speak("Deteksi dimulai");
+
+    await _detectCurrentFrame();
+    _detectionTimer = Timer.periodic(const Duration(seconds: 3), (_) {
+      if (mounted && isRecording && !isDetecting) {
+        _detectCurrentFrame();
+      }
+    });
+  }
+
+  Future<void> stopRecording() async {
+    _detectionTimer?.cancel();
+    _detectionTimer = null;
+
+    if (!mounted) return;
+    setState(() {
+      isRecording = false;
+      isDetecting = false;
+      statusMessage = "Deteksi dihentikan";
+      detectedObjects = const [];
+      detectionFrameSize = null;
+    });
+    await _tts.speak("Deteksi dihentikan");
+  }
+
+  Future<void> _detectCurrentFrame() async {
+    final CameraController? cameraController = controller;
+    if (cameraController == null ||
+        !cameraController.value.isInitialized ||
+        cameraController.value.isTakingPicture ||
+        isDetecting) {
+      return;
+    }
+
+    setState(() {
+      isDetecting = true;
+      statusMessage = "Mengambil frame kamera...";
+    });
+
+    File? capturedFile;
+
+    try {
+      final XFile frame = await cameraController.takePicture();
+      capturedFile = File(frame.path);
+      final Size capturedImageSize = await _readImageSize(capturedFile);
+
+      if (!mounted || !isRecording) return;
       setState(() {
-        isRecording = true;
+        statusMessage = "Mengirim frame ke YOLOv5...";
       });
+
+      final YoloDetectionResponse response =
+          await _detectionService.detectFrame(capturedFile);
+
+      if (!mounted || !isRecording) return;
+      setState(() {
+        detectedObjects = response.objects;
+        detectionFrameSize = capturedImageSize;
+        statusMessage = response.message;
+      });
+
+      await _announceDetection(response);
+    } catch (error) {
+      if (!mounted || !isRecording) return;
+      const String message = "Gagal memproses frame kamera";
+      setState(() {
+        statusMessage = "$message: $error";
+      });
+      await _speakOnce(message);
+    } finally {
+      if (capturedFile != null && await capturedFile.exists()) {
+        try {
+          await capturedFile.delete();
+        } catch (_) {
+          // File sementara bisa saja sudah dibersihkan oleh sistem.
+        }
+      }
+
+      if (mounted) {
+        setState(() {
+          isDetecting = false;
+        });
+      }
     }
   }
 
-  // ⏹ STOP RECORD
-  Future<void> stopRecording() async {
-    if (controller!.value.isRecordingVideo) {
-      await controller!.stopVideoRecording();
-      setState(() {
-        isRecording = false;
-      });
+  Future<Size> _readImageSize(File imageFile) async {
+    final Uint8List bytes = await imageFile.readAsBytes();
+    final ui.Codec codec = await ui.instantiateImageCodec(bytes);
+    final ui.FrameInfo frameInfo = await codec.getNextFrame();
+    return Size(
+      frameInfo.image.width.toDouble(),
+      frameInfo.image.height.toDouble(),
+    );
+  }
+
+  Future<void> _announceDetection(YoloDetectionResponse response) async {
+    if (!response.isSuccess) {
+      await _speakOnce(response.message);
+      return;
     }
+
+    if (response.objects.isEmpty) {
+      await _speakOnce("Tidak ada objek terdeteksi");
+      return;
+    }
+
+    final Map<String, int> objectCounts = {};
+    for (final YoloDetection object in response.objects) {
+      objectCounts[object.name] = (objectCounts[object.name] ?? 0) + 1;
+    }
+
+    final String objectSummary = objectCounts.entries
+        .map(
+          (entry) => entry.value > 1 ? "${entry.value} ${entry.key}" : entry.key,
+        )
+        .join(", ");
+
+    await _speakOnce("Terdeteksi $objectSummary");
+  }
+
+  Future<void> _speakOnce(String message) async {
+    final DateTime now = DateTime.now();
+    final bool canRepeat = _lastSpokenAt == null ||
+        now.difference(_lastSpokenAt!) > const Duration(seconds: 5);
+
+    if (message == _lastSpokenMessage && !canRepeat) {
+      return;
+    }
+
+    _lastSpokenMessage = message;
+    _lastSpokenAt = now;
+    await _tts.speak(message);
   }
 
   @override
   void dispose() {
+    _detectionTimer?.cancel();
     controller?.dispose();
     super.dispose();
   }
 
   Widget buildCameraPreview() {
-    final previewSize = controller?.value.previewSize;
+    final Size? previewSize = controller?.value.previewSize;
     if (previewSize == null) {
       return CameraPreview(controller!);
     }
 
-    // Kamera biasanya memberikan rasio landscape, ubah ke portrait 9:16
     final double previewAspectRatio = previewSize.height / previewSize.width;
 
     return Center(
@@ -88,19 +257,46 @@ class _CameraScreenState extends State<CameraScreen> {
   Widget build(BuildContext context) {
     if (controller == null || !controller!.value.isInitialized) {
       return Scaffold(
-        body: Center(child: CircularProgressIndicator()),
+        body: Center(
+          child: statusMessage == "Tekan tombol rekam untuk mulai deteksi"
+              ? const CircularProgressIndicator()
+              : Padding(
+                  padding: const EdgeInsets.all(24),
+                  child: Text(
+                    statusMessage,
+                    textAlign: TextAlign.center,
+                    style: const TextStyle(fontSize: 16),
+                  ),
+                ),
+        ),
       );
     }
 
     return Scaffold(
       body: Stack(
         children: [
-          // 📷 PREVIEW KAMERA (FULL SCREEN)
           Positioned.fill(
             child: buildCameraPreview(),
           ),
-
-          // 🔙 TOMBOL KEMBALI (KANAN BAWAH)
+          Positioned.fill(
+            child: IgnorePointer(
+              child: _BoundingBoxOverlay(
+                imageSize: detectionFrameSize,
+                objects: detectedObjects,
+              ),
+            ),
+          ),
+          Positioned(
+            top: 48,
+            left: 16,
+            right: 16,
+            child: _DetectionStatusPanel(
+              isRecording: isRecording,
+              isDetecting: isDetecting,
+              statusMessage: statusMessage,
+              objects: detectedObjects,
+            ),
+          ),
           Positioned(
             bottom: 40,
             right: 30,
@@ -112,12 +308,10 @@ class _CameraScreenState extends State<CameraScreen> {
                 onPressed: () {
                   Navigator.pop(context);
                 },
-                child: Icon(Icons.arrow_back),
+                child: const Icon(Icons.arrow_back),
               ),
             ),
           ),
-
-          // 🔘 TOMBOL RECORD (TENGAH BAWAH)
           Positioned(
             bottom: 30,
             left: MediaQuery.of(context).size.width / 2 - 35,
@@ -153,4 +347,243 @@ class _CameraScreenState extends State<CameraScreen> {
       ),
     );
   }
-}
+}
+
+class _BoundingBoxOverlay extends StatelessWidget {
+  const _BoundingBoxOverlay({
+    required this.imageSize,
+    required this.objects,
+  });
+
+  final Size? imageSize;
+  final List<YoloDetection> objects;
+
+  @override
+  Widget build(BuildContext context) {
+    if (imageSize == null || objects.isEmpty) {
+      return const SizedBox.shrink();
+    }
+
+    return CustomPaint(
+      painter: _BoundingBoxPainter(
+        imageSize: imageSize!,
+        objects: objects,
+      ),
+    );
+  }
+}
+
+class _BoundingBoxPainter extends CustomPainter {
+  _BoundingBoxPainter({
+    required this.imageSize,
+    required this.objects,
+  });
+
+  final Size imageSize;
+  final List<YoloDetection> objects;
+
+  static const double _previewAspectRatio = 9 / 16;
+  static const List<Color> _boxColors = [
+    Color(0xFF00E676),
+    Color(0xFFFFD600),
+    Color(0xFF40C4FF),
+    Color(0xFFFF4081),
+    Color(0xFFFF9100),
+  ];
+
+  @override
+  void paint(Canvas canvas, Size size) {
+    if (imageSize.width <= 0 || imageSize.height <= 0) {
+      return;
+    }
+
+    final Rect previewRect = _centeredAspectRect(size, _previewAspectRatio);
+    final double scale = _coverScale(imageSize, previewRect.size);
+    final Size scaledImageSize = Size(
+      imageSize.width * scale,
+      imageSize.height * scale,
+    );
+    final Offset imageOffset = Offset(
+      previewRect.left + (previewRect.width - scaledImageSize.width) / 2,
+      previewRect.top + (previewRect.height - scaledImageSize.height) / 2,
+    );
+
+    canvas.save();
+    canvas.clipRect(previewRect);
+
+    for (int index = 0; index < objects.length; index++) {
+      final YoloDetection object = objects[index];
+      final Color color = _boxColors[index % _boxColors.length];
+      final Rect box = Rect.fromLTRB(
+        imageOffset.dx + object.xmin * scale,
+        imageOffset.dy + object.ymin * scale,
+        imageOffset.dx + object.xmax * scale,
+        imageOffset.dy + object.ymax * scale,
+      );
+
+      if (box.width <= 0 || box.height <= 0) {
+        continue;
+      }
+
+      _drawBox(canvas, previewRect, box, color, object);
+    }
+
+    canvas.restore();
+  }
+
+  void _drawBox(
+    Canvas canvas,
+    Rect previewRect,
+    Rect box,
+    Color color,
+    YoloDetection object,
+  ) {
+    final Paint shadowPaint = Paint()
+      ..style = PaintingStyle.stroke
+      ..strokeWidth = 5
+      ..color = Colors.black.withOpacity(0.55);
+    final Paint boxPaint = Paint()
+      ..style = PaintingStyle.stroke
+      ..strokeWidth = 3
+      ..color = color;
+
+    canvas.drawRect(box, shadowPaint);
+    canvas.drawRect(box, boxPaint);
+
+    final String label = "${object.name} ${(object.confidence * 100).round()}%";
+    final TextPainter textPainter = TextPainter(
+      text: TextSpan(
+        text: label,
+        style: const TextStyle(
+          color: Colors.black,
+          fontSize: 13,
+          fontWeight: FontWeight.w700,
+        ),
+      ),
+      maxLines: 1,
+      textDirection: TextDirection.ltr,
+    )..layout(maxWidth: previewRect.width - 16);
+
+    final double labelWidth = textPainter.width + 12;
+    final double labelHeight = textPainter.height + 8;
+    double labelLeft = box.left;
+    double labelTop = box.top - labelHeight;
+
+    if (labelTop < previewRect.top) {
+      labelTop = box.top;
+    }
+    if (labelLeft + labelWidth > previewRect.right) {
+      labelLeft = previewRect.right - labelWidth;
+    }
+    labelLeft =
+        labelLeft.clamp(previewRect.left, previewRect.right - labelWidth).toDouble();
+
+    final RRect labelBackground = RRect.fromRectAndRadius(
+      Rect.fromLTWH(labelLeft, labelTop, labelWidth, labelHeight),
+      const Radius.circular(6),
+    );
+
+    canvas.drawRRect(
+      labelBackground,
+      Paint()..color = color.withOpacity(0.92),
+    );
+    textPainter.paint(
+      canvas,
+      Offset(labelLeft + 6, labelTop + 4),
+    );
+  }
+
+  Rect _centeredAspectRect(Size containerSize, double aspectRatio) {
+    final double containerRatio = containerSize.width / containerSize.height;
+
+    if (containerRatio > aspectRatio) {
+      final double width = containerSize.height * aspectRatio;
+      final double left = (containerSize.width - width) / 2;
+      return Rect.fromLTWH(left, 0, width, containerSize.height);
+    }
+
+    final double height = containerSize.width / aspectRatio;
+    final double top = (containerSize.height - height) / 2;
+    return Rect.fromLTWH(0, top, containerSize.width, height);
+  }
+
+  double _coverScale(Size source, Size destination) {
+    final double scaleX = destination.width / source.width;
+    final double scaleY = destination.height / source.height;
+    return scaleX > scaleY ? scaleX : scaleY;
+  }
+
+  @override
+  bool shouldRepaint(covariant _BoundingBoxPainter oldDelegate) {
+    return oldDelegate.imageSize != imageSize || oldDelegate.objects != objects;
+  }
+}
+
+class _DetectionStatusPanel extends StatelessWidget {
+  const _DetectionStatusPanel({
+    required this.isRecording,
+    required this.isDetecting,
+    required this.statusMessage,
+    required this.objects,
+  });
+
+  final bool isRecording;
+  final bool isDetecting;
+  final String statusMessage;
+  final List<YoloDetection> objects;
+
+  @override
+  Widget build(BuildContext context) {
+    final List<YoloDetection> visibleObjects = objects.take(4).toList();
+
+    return Container(
+      padding: const EdgeInsets.all(14),
+      decoration: BoxDecoration(
+        color: Colors.black.withOpacity(0.72),
+        borderRadius: BorderRadius.circular(8),
+      ),
+      child: Column(
+        mainAxisSize: MainAxisSize.min,
+        crossAxisAlignment: CrossAxisAlignment.start,
+        children: [
+          Row(
+            children: [
+              Icon(
+                isRecording ? Icons.radio_button_checked : Icons.videocam,
+                color: isRecording ? Colors.redAccent : Colors.white,
+                size: 20,
+              ),
+              const SizedBox(width: 8),
+              Expanded(
+                child: Text(
+                  isDetecting ? "YOLOv5 sedang berjalan..." : statusMessage,
+                  maxLines: 2,
+                  overflow: TextOverflow.ellipsis,
+                  style: const TextStyle(
+                    color: Colors.white,
+                    fontSize: 14,
+                    fontWeight: FontWeight.w600,
+                  ),
+                ),
+              ),
+            ],
+          ),
+          if (visibleObjects.isNotEmpty) ...[
+            const SizedBox(height: 10),
+            for (final YoloDetection object in visibleObjects)
+              Padding(
+                padding: const EdgeInsets.only(top: 4),
+                child: Text(
+                  "${object.name} - ${(object.confidence * 100).round()}%",
+                  style: const TextStyle(
+                    color: Colors.white,
+                    fontSize: 13,
+                  ),
+                ),
+              ),
+          ],
+        ],
+      ),
+    );
+  }
+}

lib/services/api_config.dart

@@ -5,7 +5,7 @@ class ApiConfig {
   static const bool useAndroidEmulator = false;
 
   // Ganti IP ini dengan IP laptop/PC Anda saat menggunakan HP fisik (ADB).
-  static const String deviceHost = "192.168.0.31:8000";
+  static const String deviceHost = "192.168.18.14:8000";
 
   static String get baseUrl {
     if (Platform.isAndroid && useAndroidEmulator) {

lib/services/yolo_detection_service.dart

@@ -0,0 +1,121 @@
+import 'dart:async';
+import 'dart:convert';
+import 'dart:io';
+
+import 'package:http/http.dart' as http;
+
+import 'api_config.dart';
+
+class YoloDetection {
+  const YoloDetection({
+    required this.name,
+    required this.confidence,
+    required this.xmin,
+    required this.ymin,
+    required this.xmax,
+    required this.ymax,
+  });
+
+  final String name;
+  final double confidence;
+  final int xmin;
+  final int ymin;
+  final int xmax;
+  final int ymax;
+
+  factory YoloDetection.fromJson(Map<String, dynamic> json) {
+    return YoloDetection(
+      name: json["name"]?.toString() ?? "unknown",
+      confidence: (json["confidence"] as num?)?.toDouble() ?? 0,
+      xmin: (json["xmin"] as num?)?.toInt() ?? 0,
+      ymin: (json["ymin"] as num?)?.toInt() ?? 0,
+      xmax: (json["xmax"] as num?)?.toInt() ?? 0,
+      ymax: (json["ymax"] as num?)?.toInt() ?? 0,
+    );
+  }
+}
+
+class YoloDetectionResponse {
+  const YoloDetectionResponse({
+    required this.status,
+    required this.message,
+    required this.objects,
+  });
+
+  final String status;
+  final String message;
+  final List<YoloDetection> objects;
+
+  bool get isSuccess => status == "success";
+
+  factory YoloDetectionResponse.fromJson(Map<String, dynamic> json) {
+    final Object? rawObjects = json["objects"];
+    final List<YoloDetection> objects = rawObjects is List
+        ? rawObjects
+            .whereType<Map>()
+            .map((object) => YoloDetection.fromJson(
+                  Map<String, dynamic>.from(object),
+                ))
+            .toList()
+        : const [];
+
+    return YoloDetectionResponse(
+      status: json["status"]?.toString() ?? "error",
+      message: json["message"]?.toString() ?? "Respons server tidak valid",
+      objects: objects,
+    );
+  }
+
+  factory YoloDetectionResponse.error(String message) {
+    return YoloDetectionResponse(
+      status: "error",
+      message: message,
+      objects: const [],
+    );
+  }
+}
+
+class YoloDetectionService {
+  static const Duration _timeout = Duration(seconds: 30);
+
+  Future<YoloDetectionResponse> detectFrame(File imageFile) async {
+    final Uri url = Uri.parse("${ApiConfig.baseUrl}/detect-frame");
+
+    try {
+      final http.MultipartRequest request = http.MultipartRequest("POST", url);
+      request.files.add(
+        await http.MultipartFile.fromPath("file", imageFile.path),
+      );
+
+      final http.StreamedResponse streamedResponse =
+          await request.send().timeout(_timeout);
+      final http.Response response =
+          await http.Response.fromStream(streamedResponse);
+
+      if (response.statusCode < 200 || response.statusCode >= 300) {
+        return YoloDetectionResponse.error(
+          "Server mengembalikan status ${response.statusCode}",
+        );
+      }
+
+      final Object? decoded = jsonDecode(response.body);
+      if (decoded is! Map<String, dynamic>) {
+        return YoloDetectionResponse.error("Format respons server tidak valid");
+      }
+
+      return YoloDetectionResponse.fromJson(decoded);
+    } on SocketException {
+      return YoloDetectionResponse.error(
+        "Gagal terhubung ke server. Pastikan API YOLOv5 sudah berjalan.",
+      );
+    } on TimeoutException {
+      return YoloDetectionResponse.error("Koneksi ke YOLOv5 terlalu lama");
+    } on FormatException {
+      return YoloDetectionResponse.error("Respons server bukan JSON valid");
+    } on http.ClientException {
+      return YoloDetectionResponse.error("Koneksi ke server terputus");
+    } catch (error) {
+      return YoloDetectionResponse.error("Gagal deteksi objek: $error");
+    }
+  }
+}