✨ Audio recorder

lib/widgets/post/compose_recorder.dart

@@ -0,0 +1,122 @@
+import 'dart:async';
+import 'dart:developer';
+
+import 'package:easy_localization/easy_localization.dart';
+import 'package:flutter/foundation.dart';
+import 'package:flutter/material.dart';
+import 'package:flutter_hooks/flutter_hooks.dart';
+import 'package:gap/gap.dart';
+import 'package:hooks_riverpod/hooks_riverpod.dart';
+import 'package:island/services/time.dart';
+import 'package:island/widgets/content/sheet.dart';
+import 'package:material_symbols_icons/symbols.dart';
+import 'package:path_provider/path_provider.dart';
+import 'package:record/record.dart' hide Amplitude;
+import 'package:styled_widget/styled_widget.dart';
+import 'package:uuid/uuid.dart';
+import 'package:waveform_flutter/waveform_flutter.dart';
+
+class ComposeRecorder extends HookConsumerWidget {
+  const ComposeRecorder({super.key});
+
+  @override
+  Widget build(BuildContext context, WidgetRef ref) {
+    final recording = useState(false);
+    final recordingStartAt = useState<DateTime?>(null);
+    final recordingDuration = useState<Duration>(Duration(seconds: 0));
+
+    StreamSubscription? originalAmplitude;
+    StreamController<Amplitude> amplitudeStream = StreamController();
+    var record = AudioRecorder();
+
+    final resultPath = useState<String?>(null);
+
+    Future<void> startRecord() async {
+      recording.value = true;
+
+      // Check and request permission if needed
+      final tempPath = !kIsWeb ? (await getTemporaryDirectory()).path : 'temp';
+      final uuid = const Uuid().v4().substring(0, 8);
+      if (!await record.hasPermission()) return;
+
+      const recordConfig = RecordConfig(
+        encoder: AudioEncoder.pcm16bits,
+        autoGain: true,
+        echoCancel: true,
+        noiseSuppress: true,
+      );
+      resultPath.value = '$tempPath/solar-network-record-$uuid.m4a';
+      await record.start(recordConfig, path: resultPath.value!);
+
+      recordingStartAt.value = DateTime.now();
+      originalAmplitude = record
+          .onAmplitudeChanged(const Duration(milliseconds: 100))
+          .listen((value) async {
+            amplitudeStream.add(
+              Amplitude(current: value.current, max: value.max),
+            );
+            recordingDuration.value = DateTime.now().difference(
+              recordingStartAt.value!,
+            );
+          });
+    }
+
+    useEffect(() {
+      return () {
+        // Called when widget is unmounted
+        log('[Recorder] Clean up!');
+        originalAmplitude?.cancel();
+        amplitudeStream.close();
+        record.dispose();
+      };
+    }, []);
+
+    Future<void> stopRecord() async {
+      recording.value = false;
+      await record.pause();
+      final newResult = await record.stop();
+      await record.cancel();
+      if (newResult != null) resultPath.value = newResult;
+
+      if (context.mounted) Navigator.of(context).pop(resultPath.value);
+    }
+
+    return SheetScaffold(
+      titleText: "recordAudio".tr(),
+      child: Column(
+        crossAxisAlignment: CrossAxisAlignment.center,
+        children: [
+          const Gap(32),
+          Text(
+            recordingDuration.value.formatDuration(),
+          ).fontSize(20).bold().padding(bottom: 8),
+          SizedBox(
+            height: 120,
+            child: Center(
+              child: ConstrainedBox(
+                constraints: const BoxConstraints(maxWidth: 480),
+                child: Card(
+                  color: Theme.of(context).colorScheme.surfaceContainer,
+                  child: AnimatedWaveList(stream: amplitudeStream.stream),
+                ),
+              ),
+            ),
+          ),
+          const Gap(12),
+          IconButton.filled(
+            onPressed: recording.value ? stopRecord : startRecord,
+            iconSize: 32,
+            icon:
+                recording.value
+                    ? const Icon(Symbols.stop, fill: 1, color: Colors.white)
+                    : const Icon(
+                      Symbols.play_arrow,
+                      fill: 1,
+                      color: Colors.white,
+                    ),
+          ),
+        ],
+      ),
+    );
+  }
+}

lib/widgets/post/compose_shared.dart

@@ -15,14 +15,14 @@ import 'package:island/services/file.dart';
 import 'package:island/services/compose_storage_db.dart';
 import 'package:island/widgets/alert.dart';
 import 'package:island/widgets/content/sheet.dart';
+import 'package:island/widgets/post/compose_recorder.dart';
 import 'package:material_symbols_icons/symbols.dart';
 import 'package:pasteboard/pasteboard.dart';
 import 'package:styled_widget/styled_widget.dart';
+import 'package:textfield_tags/textfield_tags.dart';
 import 'dart:async';
 import 'dart:developer';
 
-import 'package:textfield_tags/textfield_tags.dart';
-
 class ComposeState {
   final TextEditingController titleController;
   final TextEditingController descriptionController;
@@ -399,6 +399,26 @@ class ComposeLogic {
     ];
   }
 
+  static Future<void> recordAudioMedia(
+    WidgetRef ref,
+    ComposeState state,
+    BuildContext context,
+  ) async {
+    final audioPath = await showModalBottomSheet<String?>(
+      context: context,
+      builder: (context) => ComposeRecorder(),
+    );
+    if (audioPath == null) return;
+
+    state.attachments.value = [
+      ...state.attachments.value,
+      UniversalFile(
+        data: XFile(audioPath, mimeType: 'audio/m4a'),
+        type: UniversalFileType.audio,
+      ),
+    ];
+  }
+
   static Future<void> linkAttachment(
     WidgetRef ref,
     ComposeState state,

lib/widgets/post/compose_toolbar.dart

@@ -24,6 +24,10 @@ class ComposeToolbar extends HookConsumerWidget {
       ComposeLogic.pickVideoMedia(ref, state);
     }
 
+    void addYourVoice() {
+      ComposeLogic.recordAudioMedia(ref, state, context);
+    }
+
     void linkAttachment() {
       ComposeLogic.linkAttachment(ref, state, context);
     }
@@ -72,6 +76,12 @@ class ComposeToolbar extends HookConsumerWidget {
                 icon: const Icon(Symbols.videocam),
                 color: colorScheme.primary,
               ),
+              IconButton(
+                onPressed: addYourVoice,
+                tooltip: 'addYourVoice'.tr(),
+                icon: const Icon(Symbols.mic),
+                color: colorScheme.primary,
+              ),
               IconButton(
                 onPressed: linkAttachment,
                 icon: const Icon(Symbols.attach_file),