代码优化

lib/pages/view/widget/video_operation_view.dart

@@ -45,8 +45,8 @@ class _VideoOperationViewState extends State<VideoOperationView> {
   void initState() {
     super.initState();
     widget.controller._setCountController(_countController);
-    widget.controller._recordingState.addListener(_onUpdateRecordingState);
-    widget.controller._isCountingDown.addListener(_onUpdateIsCountingDown);
+    widget.controller.recordingState.addListener(_onUpdateRecordingState);
+    widget.controller.isCountingDown.addListener(_onUpdateIsCountingDown);
   }
 
   ///更新录像状态
@@ -71,7 +71,7 @@ class _VideoOperationViewState extends State<VideoOperationView> {
   ///更新倒计时状态
   void _onUpdateIsCountingDown() {
     setState(() {
-      _isCountingDown = widget.controller._isCountingDown.value;
+      _isCountingDown = widget.controller.isCounting;
     });
   }
 
@@ -79,8 +79,9 @@ class _VideoOperationViewState extends State<VideoOperationView> {
   void dispose() {
     super.dispose();
     _recordingTimer?.cancel();
-    widget.controller._recordingState.removeListener(_onUpdateRecordingState);
-    widget.controller._isCountingDown.removeListener(_onUpdateIsCountingDown);
+    _countController.dispose();
+    widget.controller.recordingState.removeListener(_onUpdateRecordingState);
+    widget.controller.isCountingDown.removeListener(_onUpdateIsCountingDown);
   }
 
   @override
@@ -180,9 +181,8 @@ class _VideoOperationViewState extends State<VideoOperationView> {
             width: 17.5.r,
             height: 17.5.r,
             decoration: BoxDecoration(
-                color: widget.controller._recordingState.value
-                    ? Colors.red
-                    : Colors.white,
+                color:
+                    widget.controller.isRecording ? Colors.red : Colors.white,
                 shape: BoxShape.circle),
           ));
 
@@ -229,7 +229,7 @@ class _VideoOperationViewState extends State<VideoOperationView> {
     int delay = await SpUtil.getDelayShotTime();
     _countController.startCount(isDelay ? delay : 0);
     if (isDelay) {
-      widget.controller._isCountingDown.value = true;
+      widget.controller.isCounting = true;
     }
   }
 
@@ -250,7 +250,7 @@ class _VideoOperationViewState extends State<VideoOperationView> {
   ///关闭视频
   void _stopVideo() {
     widget.onStopVideo();
-    widget.controller._isCountingDown.value = false;
+    widget.controller.isCounting = false;
   }
 
   ///拍照倒计时
@@ -259,16 +259,22 @@ class _VideoOperationViewState extends State<VideoOperationView> {
       return;
     }
     widget.onTakePhoto();
-    widget.controller._isCountingDown.value = false;
+    widget.controller.isCounting = false;
   }
 }
 
 class VideoOperationViewController {
   CountDownTextController? _countController;
 
-  final ValueNotifier<bool> _recordingState = ValueNotifier(false);
+  ValueNotifier<bool>? _recordingState;
 
-  final ValueNotifier<bool> _isCountingDown = ValueNotifier(false);
+  ValueNotifier<bool> get recordingState =>
+      _recordingState ??= ValueNotifier(false);
+
+  ValueNotifier<bool>? _isCountingDown;
+
+  ValueNotifier<bool> get isCountingDown =>
+      _isCountingDown ??= ValueNotifier(false);
 
   void _setCountController(CountDownTextController controller) {
     _countController = controller;
@@ -276,16 +282,22 @@ class VideoOperationViewController {
 
   void dispose() {
     _countController?.stopCount();
-    _recordingState.dispose();
-    _isCountingDown.dispose();
+    _recordingState?.dispose();
+    _recordingState = null;
+    _isCountingDown?.dispose();
+    _isCountingDown = null;
   }
 
   void updateRecordingState(bool isRecording) {
-    if (_recordingState.value == isRecording) {
+    if (recordingState.value == isRecording) {
       return;
     }
-    _recordingState.value = isRecording;
+    recordingState.value = isRecording;
   }
 
-  bool get isRecording => _recordingState.value;
+  bool get isRecording => recordingState.value;
+
+  bool get isCounting => isCountingDown.value;
+
+  set isCounting(bool bo) => isCountingDown.value = bo;
 }

lib/widget/count_down_text.dart

@@ -41,7 +41,9 @@ class _CountDownTextState extends State<CountDownText> {
 }
 
 class CountDownTextController {
-  ValueNotifier<String> countText = ValueNotifier("");
+  ValueNotifier<String>? _countText;
+
+  ValueNotifier<String> get countText => _countText ??= ValueNotifier("");
 
   void Function(int tick, bool complete)? onCount;
 
@@ -81,4 +83,9 @@ class CountDownTextController {
   void _timeUp() {
     stopCount();
   }
+
+  void dispose() {
+    _countText?.dispose();
+    _countText = null;
+  }
 }

lib/widget/webview_progress_bar.dart

@@ -1,3 +1,4 @@
+import 'package:eitc_erm_dental_flutter/funcs.dart';
 import 'package:flutter/material.dart';
 
 ///Webview进度条
@@ -30,9 +31,17 @@ class _WebviewProgressBarState extends State<WebviewProgressBar> {
   @override
   void initState() {
     super.initState();
-    widget.controller.progress.addListener(() {
-      setState(() {});
-    });
+    widget.controller.progress.addListener(_onUpdateProgress);
+  }
+
+  void _onUpdateProgress() {
+    setState(() {});
+  }
+
+  @override
+  void dispose() {
+    super.dispose();
+    widget.controller.progress.removeListener(_onUpdateProgress);
   }
 
   @override