梳理对讲录音功能相关逻辑并优化

解决录音只有第一次生效，后面不能正常发送录音功能问题
新增对讲过程中的截屏功能

star_lock/lib/main/lockDetail/monitoring/monitoring/lockMonitoring_logic.dart

@@ -163,48 +163,77 @@ class LockMonitoringLogic extends BaseGetXController {
     Get.back();
   }
 
+//开始录音
   Future<void> startProcessing() async {
-    state.sendEnd.value = false;
+    state.isButtonDisabled.value = true;
-    frameListener(List<int> frame) async {
-      List<int> pcmBytes = listLinearToULaw(frame);
-      await Future.delayed(const Duration(milliseconds: 10));
-      sendRecordData({
-        "bytes": pcmBytes,
-        // "udpSendDataFrameNumber": 0,
-        "lockID": UDPManage().lockId,
-        "lockIP": UDPManage().host,
-        "userMobile": await state.userUid,
-        "userMobileIP": await state.userMobileIP,
-      });
-    }
-
-    errorListener(VoiceProcessorException error) {
-      print("VoiceProcessorException: $error");
-    }
-
-    state.voiceProcessor?.addFrameListener(frameListener);
-    state.voiceProcessor?.addErrorListener(errorListener);
 
+    state.voiceProcessor?.addFrameListener(_onFrame);
+    state.voiceProcessor?.addErrorListener(_onError);
     try {
       if (await state.voiceProcessor?.hasRecordAudioPermission() ?? false) {
-        await state.voiceProcessor?.start(320, 8000);
+        await state.voiceProcessor?.start(state.frameLength, state.sampleRate);
         bool? isRecording = await state.voiceProcessor?.isRecording();
-      } else {}
+        state.isProcessing.value = isRecording!;
+      } else {
+        state.errorMessage.value = "Recording permission not granted";
+      }
     } on PlatformException catch (ex) {
-      Get.log("PlatformException: $ex");
+      state.errorMessage.value = "Failed to start recorder: $ex";
-    } finally {}
+    } finally {
+      state.isButtonDisabled.value = false;
+    }
+  }
+
+  double _calculateVolumeLevel(List<int> frame) {
+    double rms = 0.0;
+    for (int sample in frame) {
+      rms += pow(sample, 2);
+    }
+    rms = sqrt(rms / frame.length);
+
+    double dbfs = 20 * log(rms / 32767.0) / log(10);
+    double normalizedValue = (dbfs + state.dbOffset) / state.dbOffset;
+    return normalizedValue.clamp(0.0, 1.0);
+  }
+
+  Future<void> _onFrame(List<int> frame) async {
+    double volumeLevel = _calculateVolumeLevel(frame);
+    if (state.volumeHistory.value.length == state.volumeHistoryCapacity) {
+      state.volumeHistory.value.removeAt(0);
+    }
+    state.volumeHistory.value.add(volumeLevel);
+
+    state.smoothedVolumeValue.value =
+        state.volumeHistory.value.reduce((a, b) => a + b) /
+            state.volumeHistory.value.length;
+
+    List<int> pcmBytes = listLinearToULaw(frame);
+    await Future.delayed(const Duration(milliseconds: 100));
+    sendRecordData({
+      "bytes": pcmBytes,
+      // "udpSendDataFrameNumber": 0,
+      "lockID": UDPManage().lockId,
+      "lockIP": UDPManage().host,
+      "userMobile": await state.userUid,
+      "userMobileIP": await state.userMobileIP,
+    });
+  }
+
+  void _onError(VoiceProcessorException error) {
+    state.errorMessage.value = error.message!;
   }
 
   Future<void> stopProcessing() async {
+    state.isButtonDisabled.value = true;
     try {
       await state.voiceProcessor?.stop();
     } on PlatformException catch (ex) {
-      Get.log("PlatformException: $ex");
+      state.errorMessage.value = "Failed to stop recorder: $ex";
-    } finally {}
+    } finally {
-  }
+      bool? isRecording = await state.voiceProcessor?.isRecording();
-
+      state.isProcessing.value = isRecording!;
-  void onError(Object e) {
+      state.isButtonDisabled.value = false;
-    print(e);
+    }
   }
 
   sendRecordData(Map<String, dynamic> args) async {

star_lock/lib/main/lockDetail/monitoring/monitoring/lockMonitoring_page.dart

@@ -1,9 +1,14 @@
 import 'dart:async';
+import 'dart:io';
+import 'dart:ui' as ui;
 
 import 'package:flutter/material.dart';
+import 'package:flutter/rendering.dart';
 import 'package:flutter/services.dart';
 import 'package:flutter_screenutil/flutter_screenutil.dart';
 import 'package:get/get.dart';
+import 'package:image_gallery_saver/image_gallery_saver.dart';
+import 'package:path_provider/path_provider.dart';
 import 'package:star_lock/talk/call/callTalk.dart';
 
 import '../../../../app_settings/app_colors.dart';
@@ -36,85 +41,88 @@ class _LockMonitoringPageState extends State<LockMonitoringPage> {
   Widget build(BuildContext context) {
     return PopScope(
         canPop: false,
-        child: Container(
+        child: RepaintBoundary(
-          width: 1.sw,
+          key: state.globalKey,
-          height: 1.sh,
+          child: Container(
-          color: Colors.white,
+            width: 1.sw,
-          child: Stack(
+            height: 1.sh,
-            children: [
+            color: Colors.white,
-              Obx(() {
+            child: Stack(
-                if (state.listPhotoData.value.isEmpty ||
+              children: [
-                    state.listPhotoData.value.length < 10) {
+                Obx(() {
-                  return Container(color: Colors.transparent);
+                  if (state.listPhotoData.value.isEmpty ||
-                } else {
+                      state.listPhotoData.value.length < 10) {
-                  return Image.memory(
+                    return Container(color: Colors.transparent);
-                    state.listPhotoData.value,
+                  } else {
-                    gaplessPlayback: true,
+                    return Image.memory(
-                    width: 1.sw,
+                      state.listPhotoData.value,
-                    height: 1.sh,
+                      gaplessPlayback: true,
-                    fit: BoxFit.cover,
+                      width: 1.sw,
-                    errorBuilder: (context, error, stackTrace) {
+                      height: 1.sh,
-                      return Container(color: Colors.transparent);
+                      fit: BoxFit.cover,
-                    },
+                      errorBuilder: (context, error, stackTrace) {
-                  );
+                        return Container(color: Colors.transparent);
-                }
+                      },
-              }),
+                    );
-              Positioned(
+                  }
-                top: ScreenUtil().statusBarHeight + 30.h,
-                width: 1.sw,
-                child: Obx(() {
-                  var sec = (state.oneMinuteTime.value % 60)
-                      .toString()
-                      .padLeft(2, '0');
-                  var min = (state.oneMinuteTime.value ~/ 60)
-                      .toString()
-                      .padLeft(2, '0');
-                  return Row(
-                      mainAxisAlignment: MainAxisAlignment.center,
-                      children: [
-                        Text("$min:$sec",
-                            style: TextStyle(
-                                fontSize: 26.sp, color: Colors.white)),
-                        // SizedBox(width: 30.w),
-                        // GestureDetector(
-                        //   onTap: () {
-                        //     Get.back();
-                        //   },
-                        //   child: Container(
-                        //     decoration: BoxDecoration(
-                        //         color: Colors.white,
-                        //         borderRadius: BorderRadius.circular(25.h)),
-                        //     padding: EdgeInsets.all(10.w),
-                        //     child: Image(
-                        //       width: 40.w,
-                        //       height: 40.w,
-                        //       image: const AssetImage("images/icon_left_black.png"),
-                        //     ),
-                        //   ),
-                        // ),
-                      ]);
                 }),
-              ),
+                Positioned(
-              Positioned(
+                  top: ScreenUtil().statusBarHeight + 30.h,
-                  bottom: 10.w,
+                  width: 1.sw,
-                  child: Container(
+                  child: Obx(() {
-                    width: 1.sw - 30.w * 2,
+                    var sec = (state.oneMinuteTime.value % 60)
-                    // height: 300.h,
+                        .toString()
-                    margin: EdgeInsets.all(30.w),
+                        .padLeft(2, '0');
-                    decoration: BoxDecoration(
+                    var min = (state.oneMinuteTime.value ~/ 60)
-                        color: const Color(0xC83C3F41),
+                        .toString()
-                        borderRadius: BorderRadius.circular(20.h)),
+                        .padLeft(2, '0');
-                    child: Column(
+                    return Row(
-                      children: [
+                        mainAxisAlignment: MainAxisAlignment.center,
-                        SizedBox(height: 20.h),
+                        children: [
-                        bottomTopBtnWidget(),
+                          Text("$min:$sec",
-                        SizedBox(height: 20.h),
+                              style: TextStyle(
-                        bottomBottomBtnWidget(),
+                                  fontSize: 26.sp, color: Colors.white)),
-                        SizedBox(height: 20.h),
+                          // SizedBox(width: 30.w),
-                      ],
+                          // GestureDetector(
-                    ),
+                          //   onTap: () {
-                  ))
+                          //     Get.back();
-            ],
+                          //   },
+                          //   child: Container(
+                          //     decoration: BoxDecoration(
+                          //         color: Colors.white,
+                          //         borderRadius: BorderRadius.circular(25.h)),
+                          //     padding: EdgeInsets.all(10.w),
+                          //     child: Image(
+                          //       width: 40.w,
+                          //       height: 40.w,
+                          //       image: const AssetImage("images/icon_left_black.png"),
+                          //     ),
+                          //   ),
+                          // ),
+                        ]);
+                  }),
+                ),
+                Positioned(
+                    bottom: 10.w,
+                    child: Container(
+                      width: 1.sw - 30.w * 2,
+                      // height: 300.h,
+                      margin: EdgeInsets.all(30.w),
+                      decoration: BoxDecoration(
+                          color: const Color(0xC83C3F41),
+                          borderRadius: BorderRadius.circular(20.h)),
+                      child: Column(
+                        children: [
+                          SizedBox(height: 20.h),
+                          bottomTopBtnWidget(),
+                          SizedBox(height: 20.h),
+                          bottomBottomBtnWidget(),
+                          SizedBox(height: 20.h),
+                        ],
+                      ),
+                    ))
+              ],
+            ),
           ),
         ));
   }
@@ -144,6 +152,7 @@ class _LockMonitoringPageState extends State<LockMonitoringPage> {
       // 截图
       GestureDetector(
         onTap: () {
+          captureAndSavePng();
           // Get.toNamed(Routers.monitoringRealTimeScreenPage);
         },
         child: Container(
@@ -198,13 +207,16 @@ class _LockMonitoringPageState extends State<LockMonitoringPage> {
               state.udpStatus.value = 9;
             }
             // logic.readG711Data();
-            logic.startProcessing();
+            if (state.isProcessing.value == false) {
+              logic.startProcessing();
+            }
           }, longPressUp: () async {
             // 长按结束
             print("onLongPressUp");
             if (state.udpStatus.value == 9) {
               state.udpStatus.value = 8;
             }
+            logic.stopProcessing();
           })),
       bottomBtnItemWidget(
           "images/main/icon_lockDetail_hangUp.png", "挂断", Colors.red, () async {
@@ -337,6 +349,41 @@ class _LockMonitoringPageState extends State<LockMonitoringPage> {
     });
   }
 
+  Future<void> captureAndSavePng() async {
+    try {
+      if (state.globalKey.currentContext == null) {
+        print('截图失败: 未找到当前上下文');
+        return;
+      }
+      RenderRepaintBoundary boundary = state.globalKey.currentContext!
+          .findRenderObject() as RenderRepaintBoundary;
+      ui.Image image = await boundary.toImage();
+      ByteData? byteData =
+          await image.toByteData(format: ui.ImageByteFormat.png);
+      if (byteData == null) {
+        print('截图失败: 图像数据为空');
+        return;
+      }
+      Uint8List pngBytes = byteData.buffer.asUint8List();
+
+      // 获取应用程序的文档目录
+      final directory = await getApplicationDocumentsDirectory();
+      final imagePath = '${directory.path}/screenshot.png';
+
+      // 将截图保存为文件
+      File imgFile = File(imagePath);
+      await imgFile.writeAsBytes(pngBytes);
+
+      // 将截图保存到相册
+      await ImageGallerySaver.saveFile(imagePath);
+
+      print('截图保存路径: $imagePath');
+      logic.showToast('截图已保存到相册');
+    } catch (e) {
+      print('截图失败: $e');
+    }
+  }
+
   @override
   void dispose() {
     super.dispose();

star_lock/lib/main/lockDetail/monitoring/monitoring/lockMonitoring_state.dart

@@ -23,9 +23,19 @@ class LockMonitoringState {
   var listPhotoData = Uint8List(0).obs; //得到的视频流字节数据
   var listAudioData = <int>[].obs; //得到的音频流字节数据
 
+//录音相关
   late final VoiceProcessor? voiceProcessor;
-  var sendEnd = false.obs; //发送完成
+  var isProcessing = false.obs; //是否正在处理音频数据
-  late StreamSubscription<List<int>> frameSubscription;
+  var isButtonDisabled = false.obs; //是否禁用按钮
+  final int frameLength = 320; //音视频帧长度为320
+  final int sampleRate = 8000; //音频采样率为8000
+  final int volumeHistoryCapacity = 5; //音量历史记录的容量
+  final double dbOffset = 50.0; //用于音量计算的偏移量
+  var volumeHistory = <double>[].obs; //用于存储音量历史记录的列表
+  var smoothedVolumeValue = 0.0.obs; //存储平滑后的音量值
+  var errorMessage = ''.obs;
+
+  GlobalKey globalKey = GlobalKey();
 
   late Timer oneMinuteTimeTimer =
       Timer(const Duration(seconds: 1), () {}); // 定时器超过60秒关闭当前界面