Solved seconds/milliseconds on iOS and added seekTo to navigate through the video stream

android/src/main/java/com/gianlucaparadise/flutter_cast_framework/PlatformBridgeApis.java

@@ -1572,6 +1572,8 @@ public class PlatformBridgeApis {
 
     void skipAd();
 
+    void seekTo(@NonNull Long position);
+
     void queueAppendItem(@NonNull MediaQueueItem item);
 
     void queueNextItem();
@@ -1839,6 +1841,33 @@ public class PlatformBridgeApis {
           channel.setMessageHandler(null);
         }
       }
+      {
+        BasicMessageChannel<Object> channel =
+            new BasicMessageChannel<>(
+                binaryMessenger, "dev.flutter.pigeon.CastHostApi.seekTo", getCodec());
+        if (api != null) {
+          channel.setMessageHandler(
+              (message, reply) -> {
+                ArrayList<Object> wrapped = new ArrayList<Object>();
+                try {
+                  ArrayList<Object> args = (ArrayList<Object>) message;
+                  assert args != null;
+                  Number positionArg = (Number) args.get(0);
+                  if (positionArg == null) {
+                    throw new NullPointerException("positionArg unexpectedly null.");
+                  }
+                  api.seekTo((positionArg == null) ? null : positionArg.longValue());
+                  wrapped.add(0, null);
+                } catch (Error | RuntimeException exception) {
+                  ArrayList<Object> wrappedError = wrapError(exception);
+                  wrapped = wrappedError;
+                }
+                reply.reply(wrapped);
+              });
+        } else {
+          channel.setMessageHandler(null);
+        }
+      }
       {
         BasicMessageChannel<Object> channel =
             new BasicMessageChannel<>(

android/src/main/kotlin/com/gianlucaparadise/flutter_cast_framework/FlutterCastFrameworkPlugin.kt

@@ -12,6 +12,8 @@ import com.gianlucaparadise.flutter_cast_framework.cast.CastDialogOpener
 import com.gianlucaparadise.flutter_cast_framework.cast.MessageCastingChannel
 import com.gianlucaparadise.flutter_cast_framework.media.*
 import com.google.android.gms.cast.MediaError
+import com.google.android.gms.cast.MediaSeekOptions
+import com.google.android.gms.cast.MediaSeekOptions.ResumeState
 import com.google.android.gms.cast.MediaStatus.*
 import com.google.android.gms.cast.framework.CastContext
 import com.google.android.gms.cast.framework.CastSession
@@ -394,6 +396,14 @@ class FlutterCastFrameworkPlugin : FlutterPlugin, MethodCallHandler, ActivityAwa
             remoteMediaClient.skipAd()
         }
 
+        override fun seekTo(position: Long) {
+            val remoteMediaClient: RemoteMediaClient = remoteMediaClient ?: return
+            remoteMediaClient.seek(MediaSeekOptions.Builder()
+                    .setPosition(position)
+                    .setResumeState(MediaSeekOptions.RESUME_STATE_UNCHANGED)
+                    .build());
+        }
+
         override fun queueAppendItem(item: PlatformBridgeApis.MediaQueueItem) {
             val remoteMediaClient: RemoteMediaClient = remoteMediaClient ?: return
 

ios/Classes/HostMediaLoadRequestDataHelper.swift

@@ -17,7 +17,7 @@ let kThumbnailHeight = 720
 func getMediaLoadRequest(request: MediaLoadRequestData) -> GCKMediaLoadRequestData {
     let mediaRequestBuilder = GCKMediaLoadRequestDataBuilder.init()
     mediaRequestBuilder.autoplay = request.shouldAutoplay
-    mediaRequestBuilder.startTime = request.currentTime?.doubleValue ?? 0
+    mediaRequestBuilder.startTime = (request.currentTime?.doubleValue ?? 0) / 1000
     
     mediaRequestBuilder.mediaInformation = getMediaInfo(mediaInfo: request.mediaInfo)
     

ios/Classes/PlatformBridgeApis.h

@@ -311,6 +311,7 @@ NSObject<FlutterMessageCodec> *CastHostApiGetCodec(void);
 - (void)stopWithError:(FlutterError *_Nullable *_Nonnull)error;
 - (void)showTracksChooserDialogWithError:(FlutterError *_Nullable *_Nonnull)error;
 - (void)skipAdWithError:(FlutterError *_Nullable *_Nonnull)error;
+- (void)seekToPosition:(NSNumber *)position error:(FlutterError *_Nullable *_Nonnull)error;
 - (void)queueAppendItemItem:(MediaQueueItem *)item error:(FlutterError *_Nullable *_Nonnull)error;
 - (void)queueNextItemWithError:(FlutterError *_Nullable *_Nonnull)error;
 - (void)queuePrevItemWithError:(FlutterError *_Nullable *_Nonnull)error;

ios/Classes/PlatformBridgeApis.m

@@ -747,6 +747,25 @@ void CastHostApiSetup(id<FlutterBinaryMessenger> binaryMessenger, NSObject<CastH
       [channel setMessageHandler:nil];
     }
   }
+  {
+    FlutterBasicMessageChannel *channel =
+      [[FlutterBasicMessageChannel alloc]
+        initWithName:@"dev.flutter.pigeon.CastHostApi.seekTo"
+        binaryMessenger:binaryMessenger
+        codec:CastHostApiGetCodec()];
+    if (api) {
+      NSCAssert([api respondsToSelector:@selector(seekToPosition:error:)], @"CastHostApi api (%@) doesn't respond to @selector(seekToPosition:error:)", api);
+      [channel setMessageHandler:^(id _Nullable message, FlutterReply callback) {
+        NSArray *args = message;
+        NSNumber *arg_position = GetNullableObjectAtIndex(args, 0);
+        FlutterError *error;
+        [api seekToPosition:arg_position error:&error];
+        callback(wrapResult(nil, error));
+      }];
+    } else {
+      [channel setMessageHandler:nil];
+    }
+  }
   {
     FlutterBasicMessageChannel *channel =
       [[FlutterBasicMessageChannel alloc]

ios/Classes/SwiftFlutterCastFrameworkPlugin.swift

@@ -3,6 +3,7 @@ import UIKit
 import GoogleCast
 
 public class SwiftFlutterCastFrameworkPlugin: NSObject, FlutterPlugin, GCKSessionManagerListener, CastHostApi, GCKRemoteMediaClientListener, GCKMediaQueueDelegate {
+    
     public static func register(with registrar: FlutterPluginRegistrar) {
         let messenger : FlutterBinaryMessenger = registrar.messenger()
         let flutterApi = CastFlutterApi.init(binaryMessenger: messenger)
@@ -302,6 +303,15 @@ public class SwiftFlutterCastFrameworkPlugin: NSObject, FlutterPlugin, GCKSessio
         castSession?.setDeviceMuted(isMuted)
     }
     
+    public func seek(toPosition position: NSNumber, error: AutoreleasingUnsafeMutablePointer<FlutterError?>) {
+        let options = GCKMediaSeekOptions()
+        options.interval = position.doubleValue / 1000
+        options.resumeState = .unchanged
+        
+        remoteMediaClient?.seek(with: options)
+    }
+    
+    
     public func getCastDeviceWithError(_ error: AutoreleasingUnsafeMutablePointer<FlutterError?>) -> CastDevice? {
         let castDevice = castSession?.device
         

lib/src/PlatformBridgeApis.dart

@@ -912,6 +912,28 @@ class CastHostApi {
     }
   }
 
+  Future<void> seekTo(int arg_progress) async {
+    final BasicMessageChannel<Object?> channel = BasicMessageChannel<Object?>(
+        'dev.flutter.pigeon.CastHostApi.seekTo', codec,
+        binaryMessenger: _binaryMessenger);
+    final List<Object?>? replyList =
+        await channel.send(<Object?>[arg_progress]) as List<Object?>?;
+    if (replyList == null) {
+      throw PlatformException(
+        code: 'channel-error',
+        message: 'Unable to establish connection on channel.',
+      );
+    } else if (replyList.length > 1) {
+      throw PlatformException(
+        code: replyList[0]! as String,
+        message: replyList[1] as String?,
+        details: replyList[2],
+      );
+    } else {
+      return;
+    }
+  }
+
   Future<void> queueAppendItem(MediaQueueItem arg_item) async {
     final BasicMessageChannel<Object?> channel = BasicMessageChannel<Object?>(
         'dev.flutter.pigeon.CastHostApi.queueAppendItem', codec,

lib/src/cast/RemoteMediaClient.dart

@@ -97,6 +97,11 @@ class RemoteMediaClient {
     _hostApi.stop();
   }
 
+  /// Seeks the playback to the position.
+  void seekTo(int position) {
+    _hostApi.seekTo(position);
+  }
+
   /// Returns the current media information
   Future<MediaInfo> getMediaInfo() async {
     // FIXME: can remove future? we could avoid to call host and rely on listener callbacks (maybe onMetadataUpdated)

lib/src/cast/widgets/mini_controller/MiniControllerProgress.dart

@@ -2,7 +2,7 @@ import 'package:flutter/material.dart';
 
 import '../../../../cast.dart';
 
-class MiniControllerProgress extends StatelessWidget {
+class MiniControllerProgress extends StatefulWidget {
   final FlutterCastFramework castFramework;
 
   const MiniControllerProgress({
@@ -10,10 +10,18 @@ class MiniControllerProgress extends StatelessWidget {
     required this.castFramework,
   }) : super(key: key);
 
+  @override
+  State<MiniControllerProgress> createState() => _MiniControllerProgressState();
+}
+
+class _MiniControllerProgressState extends State<MiniControllerProgress> {
+
+  double? _newValue;
+
   @override
   Widget build(BuildContext context) {
-    var remoteMediaClient =
+    final remoteMediaClient =
-        this.castFramework.castContext.sessionManager.remoteMediaClient;
+        this.widget.castFramework.castContext.sessionManager.remoteMediaClient;
 
     return StreamBuilder<ProgressInfo>(
       stream: remoteMediaClient.progressStream,
@@ -28,6 +36,18 @@ class MiniControllerProgress extends StatelessWidget {
           // this is the denominator, can't be 0
           final durationFix = duration == 0 ? 1 : duration;
           progressPercent = progress / durationFix;
+
+          return Padding(
+            padding: const EdgeInsets.symmetric(horizontal: 48.0),
+            child: Slider(
+              activeColor: Colors.red,
+              inactiveColor: Colors.white70,
+              value: _newValue ?? progressPercent,
+              onChangeStart: (value) => setState(() => _newValue = value),
+              onChangeEnd: (value) => _onChangeEnd(value, duration),
+              onChanged: (value) => setState(() => _newValue = value),
+            ),
+          );
         } else {
           progressPercent = 0;
         }
@@ -40,4 +60,13 @@ class MiniControllerProgress extends StatelessWidget {
       },
     );
   }
+
+  void _onChangeEnd(double value, int duration) {
+    final remoteMediaClient =
+        this.widget.castFramework.castContext.sessionManager.remoteMediaClient;
+
+    remoteMediaClient.seekTo((value * duration).toInt());
+
+    setState(() => _newValue = null);
+  }
 }

pigeon/PlatformBridgeApisDefinition.dart

@@ -294,6 +294,7 @@ abstract class CastHostApi {
   void stop();
   void showTracksChooserDialog();
   void skipAd();
+  void seekTo(int position);
   //endregion
 
   //region RemoteMediaClient Queue