🔖 3.5.0 (#117)

Author: AlexV525

CHANGELOG.md

@@ -4,19 +4,7 @@ that can be found in the LICENSE file. -->
 
 # Changelog
 
-## 3.5.0-dev.3
-
-### Improvements
-
-- Prevent switching cameras when taking picture or recording video. (#120)
-
-## 3.5.0-dev.2
-
-### Improvements
-
-- Re-export `CameraPicker`'s constructor. (#116)
-
-## 3.5.0-dev.1
+## 3.5.0
 
 ### New features
 
@@ -25,6 +13,9 @@ that can be found in the LICENSE file. -->
 ### Improvements
 
 - Expose multiple internal widgets. (#113)
+- Re-export `CameraPicker`'s constructor. (#116)
+- Avoid duplicate entity saving. (#117)
+- Prevent switching cameras when taking picture or recording video. (#120)
 
 ## 3.4.0
 

lib/src/internals/methods.dart

@@ -27,3 +27,5 @@ void handleErrorWithHandler(
   }
   throw e;
 }
+
+T? ambiguate<T>(T value) => value;

lib/src/states/camera_picker_state.dart

@@ -7,7 +7,6 @@ import 'dart:async';
 import 'dart:io';
 import 'dart:math' as math;
 
-import 'package:bindings_compatible/bindings_compatible.dart';
 import 'package:camera/camera.dart';
 import 'package:camera_platform_interface/camera_platform_interface.dart';
 import 'package:flutter/gestures.dart';
@@ -49,7 +48,9 @@ class CameraPickerState extends State<CameraPicker>
   /// 在开始录像前，最后一次在拍照按钮按下的位置
   Offset? lastShootingButtonPressedPosition;
 
-  final ValueNotifier<bool> isExposureModeDisplays = ValueNotifier<bool>(false);
+  /// Whether the focus point is displaying.
+  /// 是否正在展示当前的聚焦点
+  final ValueNotifier<bool> isFocusPointDisplays = ValueNotifier<bool>(false);
 
   /// The controller for the current camera.
   /// 当前相机实例的控制器
@@ -58,7 +59,7 @@ class CameraPickerState extends State<CameraPicker>
 
   /// Available cameras.
   /// 可用的相机实例
-  late List<CameraDescription> cameras;
+  late final List<CameraDescription> cameras;
 
   /// Current exposure offset.
   /// 当前曝光值
@@ -162,7 +163,7 @@ class CameraPickerState extends State<CameraPicker>
   @override
   void initState() {
     super.initState();
-    useWidgetsBinding().addObserver(this);
+    ambiguate(WidgetsBinding.instance)?.addObserver(this);
 
     // TODO(Alex): Currently hide status bar will cause the viewport shaking on Android.
     /// Hide system status bar automatically when the platform is not Android.
@@ -179,11 +180,11 @@ class CameraPickerState extends State<CameraPicker>
     if (!Platform.isAndroid) {
       SystemChrome.setEnabledSystemUIOverlays(SystemUiOverlay.values);
     }
-    useWidgetsBinding().removeObserver(this);
+    ambiguate(WidgetsBinding.instance)?.removeObserver(this);
     innerController?.dispose();
     currentExposureOffset.dispose();
     lastExposurePoint.dispose();
-    isExposureModeDisplays.dispose();
+    isFocusPointDisplays.dispose();
     exposurePointDisplayTimer?.cancel();
     exposureModeDisplayTimer?.cancel();
     recordDetectTimer?.cancel();
@@ -255,7 +256,7 @@ class CameraPickerState extends State<CameraPicker>
     });
     // **IMPORTANT**: Push methods into a post frame callback, which ensures the
     // controller has already unbind from widgets.
-    useWidgetsBinding().addPostFrameCallback((_) async {
+    ambiguate(WidgetsBinding.instance)?.addPostFrameCallback((_) async {
       // When the [cameraDescription] is null, which means this is the first
       // time initializing cameras, so available cameras should be fetched.
       if (cameraDescription == null) {
@@ -264,7 +265,7 @@ class CameraPickerState extends State<CameraPicker>
 
       // After cameras fetched, judge again with the list is empty or not to
       // ensure there is at least an available camera for use.
-      if (cameraDescription == null && (cameras.isEmpty)) {
+      if (cameraDescription == null && cameras.isEmpty) {
         handleErrorWithHandler(
           CameraException(
             'No CameraDescription found.',
@@ -440,7 +441,7 @@ class CameraPickerState extends State<CameraPicker>
   void restartDisplayModeDisplayTimer() {
     exposureModeDisplayTimer?.cancel();
     exposureModeDisplayTimer = Timer(const Duration(seconds: 2), () {
-      isExposureModeDisplays.value = false;
+      isFocusPointDisplays.value = false;
     });
   }
 
@@ -474,7 +475,7 @@ class CameraPickerState extends State<CameraPicker>
     Offset position,
     BoxConstraints constraints,
   ) async {
-    isExposureModeDisplays.value = false;
+    isFocusPointDisplays.value = false;
     // Ignore point update when the new point is less than 8% and higher than
     // 92% of the screen's height.
     if (position.dy < constraints.maxHeight / 12 ||
@@ -535,8 +536,8 @@ class CameraPickerState extends State<CameraPicker>
     } catch (e, s) {
       handleErrorWithHandler(e, pickerConfig.onError, s: s);
     }
-    if (!isExposureModeDisplays.value) {
-      isExposureModeDisplays.value = true;
+    if (!isFocusPointDisplays.value) {
+      isFocusPointDisplays.value = true;
     }
     restartDisplayModeDisplayTimer();
     restartExposurePointDisplayTimer();
@@ -1008,7 +1009,7 @@ class CameraPickerState extends State<CameraPicker>
     final bool isLocked = mode == ExposureMode.locked;
     final Color? color = isLocked ? _lockedColor : theme.iconTheme.color;
     final Widget lineWidget = ValueListenableBuilder<bool>(
-      valueListenable: isExposureModeDisplays,
+      valueListenable: isFocusPointDisplays,
       builder: (_, bool value, Widget? child) => AnimatedOpacity(
         duration: _kDuration,
         opacity: value ? 1 : 0,
@@ -1077,7 +1078,7 @@ class CameraPickerState extends State<CameraPicker>
       return Column(
         children: <Widget>[
           ValueListenableBuilder<bool>(
-            valueListenable: isExposureModeDisplays,
+            valueListenable: isFocusPointDisplays,
             builder: (_, bool value, Widget? child) => AnimatedOpacity(
               duration: _kDuration,
               opacity: value ? 1 : 0,

lib/src/states/camera_picker_viewer_state.dart

@@ -47,6 +47,9 @@ class CameraPickerViewerState extends State<CameraPickerViewer> {
   /// 初始化视频控制器时是否发生错误
   bool hasErrorWhenInitializing = false;
 
+  /// Whether the saving process is ongoing.
+  bool isSavingEntity = false;
+
   CameraErrorHandler? get onError => widget.pickerConfig.onError;
 
   @override
@@ -121,13 +124,23 @@ class CameraPickerViewerState extends State<CameraPickerViewer> {
   /// While the entity might returned null, there's no side effects if popping `null`
   /// because the parent picker will ignore it.
   Future<void> createAssetEntityAndPop() async {
+    if (isSavingEntity) {
+      return;
+    }
+    isSavingEntity = true;
     final CameraPickerViewType viewType = widget.viewType;
     if (widget.pickerConfig.onEntitySaving != null) {
-      await widget.pickerConfig.onEntitySaving!(
-        context,
-        widget.viewType,
-        File(widget.previewXFile.path),
-      );
+      try {
+        await widget.pickerConfig.onEntitySaving!(
+          context,
+          widget.viewType,
+          File(widget.previewXFile.path),
+        );
+      } catch (e, s) {
+        handleErrorWithHandler(e, widget.pickerConfig.onError, s: s);
+      } finally {
+        isSavingEntity = false;
+      }
       return;
     }
     AssetEntity? entity;
@@ -165,6 +178,7 @@ class CameraPickerViewerState extends State<CameraPickerViewer> {
       realDebugPrint('Saving entity failed: $e');
       handleErrorWithHandler(e, widget.pickerConfig.onError, s: s);
     } finally {
+      isSavingEntity = false;
       if (mounted) {
         Navigator.of(context).pop(entity);
       }

lib/src/widgets/camera_progress_button.dart

@@ -4,10 +4,10 @@
 
 import 'dart:math' as math;
 
-import 'package:bindings_compatible/bindings_compatible.dart';
 import 'package:flutter/material.dart';
 
 import '../constants/styles.dart';
+import '../internals/methods.dart';
 
 class CameraProgressButton extends StatefulWidget {
   const CameraProgressButton({
@@ -41,7 +41,7 @@ class _CircleProgressState extends State<CameraProgressButton>
   @override
   void initState() {
     super.initState();
-    useWidgetsBinding().addPostFrameCallback((Duration _) {
+    ambiguate(WidgetsBinding.instance)?.addPostFrameCallback((_) {
       progressController.forward();
     });
   }

pubspec.yaml

@@ -1,6 +1,6 @@
 name: wechat_camera_picker
 description: A camera picker which is an extension to wechat_assets_picker, but can be run separately.
-version: 3.5.0-dev.3
+version: 3.5.0
 homepage: https://github.com/fluttercandies/flutter_wechat_camera_picker
 
 environment:
@@ -11,9 +11,8 @@ dependencies:
   flutter:
     sdk: flutter
 
-  bindings_compatible: ^1.0.1
   camera: ^0.9.6
   camera_platform_interface: ^2.1.5
   path: ^1.8.0
-  photo_manager: ^2.1.0+2
+  photo_manager: ^2.2.0
   video_player: ^2.3.2