🌐 Allow text delegates to be obtained by Locale (#99)

Author: AlexV525

CHANGELOG.md

@@ -11,6 +11,7 @@ that can be found in the LICENSE file. -->
 - Allow the foreground builder to be used all the time (#97) .
   The signature of the `ForegroundBuilder` has changed
   but can be easily migrated.
+- Allow text delegates to be obtained by `Locale`. (#99)
 
 ## 3.2.0+1
 

example/pubspec.yaml

@@ -1,6 +1,6 @@
 name: wechat_camera_picker_demo
 description: A new Flutter project.
-version: 3.2.0+10
+version: 3.2.1+11
 publish_to: none
 
 environment:

lib/src/constants/constants.dart

@@ -9,5 +9,6 @@ export 'package:photo_manager/photo_manager.dart';
 class Constants {
   const Constants._();
 
-  static CameraPickerTextDelegate textDelegate = CameraPickerTextDelegate();
+  static CameraPickerTextDelegate textDelegate =
+      const CameraPickerTextDelegate();
 }

lib/src/delegates/camera_picker_text_delegate.dart

@@ -3,18 +3,56 @@
 // in the LICENSE file.
 
 import 'package:camera/camera.dart' show CameraLensDirection, FlashMode;
+import 'package:flutter/rendering.dart';
+
+/// All text delegates.
+const List<CameraPickerTextDelegate> cameraPickerTextDelegates =
+    <CameraPickerTextDelegate>[
+  CameraPickerTextDelegate(),
+  EnglishCameraPickerTextDelegate(),
+];
+
+/// Obtain the text delegate from the given locale.
+CameraPickerTextDelegate cameraPickerTextDelegateFromLocale(Locale? locale) {
+  if (locale == null) {
+    return const CameraPickerTextDelegate();
+  }
+  final String languageCode = locale.languageCode.toLowerCase();
+  for (final CameraPickerTextDelegate delegate in cameraPickerTextDelegates) {
+    if (delegate.languageCode == languageCode) {
+      return delegate;
+    }
+  }
+  return const CameraPickerTextDelegate();
+}
 
-/// Text delegate that controls text in widgets, implemented with Chinese.
-/// 控制部件中的文字实现，中文。
+/// Text delegate implemented with Chinese.
+/// 中文文字实现
 class CameraPickerTextDelegate {
+  const CameraPickerTextDelegate();
+
+  String get languageCode => 'zh';
+
   /// Confirm string for the confirm button.
   /// 确认按钮的字段
   String get confirm => '确认';
 
-  /// Tips string above the shooting button before shooting.
+  /// Tips above the shooting button before shooting.
   /// 拍摄前确认按钮上方的提示文字
   String get shootingTips => '轻触拍照';
 
+  /// Tips with recording above the shooting button before shooting.
+  /// 拍摄前确认按钮上方的提示文字（带录像）
+  String get shootingWithRecordingTips => '轻触拍照，长按摄像';
+
+  /// Tips with only recording above the shooting button before shooting.
+  /// 拍摄前确认按钮上方的提示文字（仅录像）
+  String get shootingOnlyRecordingTips => '长按摄像';
+
+  /// Tips with tap recording above the shooting button before shooting.
+  /// 拍摄前确认按钮上方的提示文字（点击录像）
+  String get shootingTapRecordingTips => '轻触摄像';
+
   /// Load failed string for item.
   /// 资源加载失败时的字段
   String get loadFailed => '加载失败';
@@ -77,37 +115,28 @@ class CameraPickerTextDelegate {
   }
 }
 
-/// Default text delegate including recording implements with Chinese.
-/// 中文文字实现（包括摄像）
-class CameraPickerTextDelegateWithRecording extends CameraPickerTextDelegate {
+/// Text delegate implements with English.
+class EnglishCameraPickerTextDelegate extends CameraPickerTextDelegate {
+  const EnglishCameraPickerTextDelegate();
+
   @override
-  String get shootingTips => '轻触拍照，长按摄像';
-}
+  String get languageCode => 'en';
 
-/// Default text delegate including only recording implements with Chinese.
-/// 中文文字实现（仅摄像）
-class CameraPickerTextDelegateWithOnlyRecording
-    extends CameraPickerTextDelegate {
   @override
-  String get shootingTips => '长按摄像';
-}
+  String get confirm => 'Confirm';
 
-/// Default text delegate including tap recording implements with Chinese.
-/// 中文文字实现（仅轻触摄像）
-class CameraPickerTextDelegateWithTapRecording
-    extends CameraPickerTextDelegate {
   @override
-  String get shootingTips => '轻触摄像';
-}
+  String get shootingTips => 'Tap to take photo.';
 
-/// Default text delegate implements with English.
-/// 英文文字实现
-class EnglishCameraPickerTextDelegate extends CameraPickerTextDelegate {
   @override
-  String get confirm => 'Confirm';
+  String get shootingWithRecordingTips =>
+      'Tap to take photo. Long press to record video.';
 
   @override
-  String get shootingTips => 'Tap to take photo.';
+  String get shootingOnlyRecordingTips => 'Long press to record video.';
+
+  @override
+  String get shootingTapRecordingTips => 'Tap to record video.';
 
   @override
   String get loadFailed => 'Load failed';
@@ -148,27 +177,3 @@ class EnglishCameraPickerTextDelegate extends CameraPickerTextDelegate {
   String sSwitchCameraLensDirectionLabel(CameraLensDirection value) =>
       'Switch to the ${sCameraLensDirectionLabel(value)} camera';
 }
-
-/// Default text delegate including recording implements with English.
-/// 英文文字实现（包括摄像）
-class EnglishCameraPickerTextDelegateWithRecording
-    extends EnglishCameraPickerTextDelegate {
-  @override
-  String get shootingTips => 'Tap to take photo. Long press to record video.';
-}
-
-/// Default text delegate including only recording implements with English.
-/// 英文文字实现（仅摄像）
-class EnglishCameraPickerTextDelegateWithOnlyRecording
-    extends EnglishCameraPickerTextDelegate {
-  @override
-  String get shootingTips => 'Long press to record video.';
-}
-
-/// Default text delegate including tap recording implements with English.
-/// 英文文字实现（仅轻触摄像）
-class EnglishCameraPickerTextDelegateWithTapRecording
-    extends EnglishCameraPickerTextDelegate {
-  @override
-  String get shootingTips => 'Tap to record video.';
-}

lib/src/widgets/camera_picker.dart

@@ -40,22 +40,10 @@ class CameraPicker extends StatefulWidget {
   CameraPicker({
     Key? key,
     this.pickerConfig = const CameraPickerConfig(),
+    Locale? locale,
   }) : super(key: key) {
-    // Set text delegate accordingly.
-    if (pickerConfig.textDelegate != null) {
-      Constants.textDelegate = pickerConfig.textDelegate!;
-    } else if (pickerConfig.enableRecording &&
-        pickerConfig.onlyEnableRecording &&
-        pickerConfig.enableTapRecording) {
-      Constants.textDelegate = CameraPickerTextDelegateWithTapRecording();
-    } else if (pickerConfig.enableRecording &&
-        pickerConfig.onlyEnableRecording) {
-      Constants.textDelegate = CameraPickerTextDelegateWithOnlyRecording();
-    } else if (pickerConfig.enableRecording) {
-      Constants.textDelegate = CameraPickerTextDelegateWithRecording();
-    } else {
-      Constants.textDelegate = CameraPickerTextDelegate();
-    }
+    Constants.textDelegate =
+        pickerConfig.textDelegate ?? cameraPickerTextDelegateFromLocale(locale);
   }
 
   final CameraPickerConfig pickerConfig;
@@ -67,8 +55,12 @@ class CameraPicker extends StatefulWidget {
     CameraPickerConfig pickerConfig = const CameraPickerConfig(),
     bool useRootNavigator = true,
     CameraPickerPageRouteBuilder<AssetEntity>? pageRouteBuilder,
+    Locale? locale,
   }) {
-    final Widget picker = CameraPicker(pickerConfig: pickerConfig);
+    final Widget picker = CameraPicker(
+      pickerConfig: pickerConfig,
+      locale: locale ?? Localizations.maybeLocaleOf(context),
+    );
     return Navigator.of(
       context,
       rootNavigator: useRootNavigator,
@@ -880,7 +872,7 @@ class CameraPickerState extends State<CameraPicker>
           return const SizedBox.shrink();
         }
         return Padding(
-          padding: const EdgeInsets.symmetric(horizontal: 12.0),
+          padding: const EdgeInsets.symmetric(horizontal: 12),
           child: Row(
             children: <Widget>[
               if (cameras.length > 1) switchCamerasButton,
@@ -936,15 +928,26 @@ class CameraPickerState extends State<CameraPicker>
   /// Text widget for shooting tips.
   /// 拍摄的提示文字
   Widget tipsTextWidget(CameraController? controller) {
+    final String tips;
+    if (config.enableRecording) {
+      if (config.onlyEnableRecording) {
+        if (config.enableTapRecording) {
+          tips = _textDelegate.shootingTapRecordingTips;
+        } else {
+          tips = _textDelegate.shootingOnlyRecordingTips;
+        }
+      } else {
+        tips = _textDelegate.shootingWithRecordingTips;
+      }
+    } else {
+      tips = _textDelegate.shootingTips;
+    }
     return AnimatedOpacity(
       duration: recordDetectDuration,
       opacity: controller?.value.isRecordingVideo ?? false ? 0 : 1,
       child: Padding(
-        padding: const EdgeInsets.symmetric(vertical: 20.0),
-        child: Text(
-          _textDelegate.shootingTips,
-          style: const TextStyle(fontSize: 15.0),
-        ),
+        padding: const EdgeInsets.all(20),
+        child: Text(tips, style: const TextStyle(fontSize: 15)),
       ),
     );
   }
@@ -1049,7 +1052,7 @@ class CameraPickerState extends State<CameraPicker>
                     duration: maximumRecordingDuration!,
                     outerRadius: outerSize.width,
                     ringsColor: theme.indicatorColor,
-                    ringsWidth: 2.0,
+                    ringsWidth: 2,
                   ),
                 ),
               ],
@@ -1351,7 +1354,7 @@ class CameraPickerState extends State<CameraPicker>
   Widget _contentBuilder(BoxConstraints constraints) {
     return SafeArea(
       child: Padding(
-        padding: const EdgeInsets.only(bottom: 20.0),
+        padding: const EdgeInsets.only(bottom: 20),
         child: Column(
           children: <Widget>[
             Semantics(