Android + Time out Resume Logic so files can be requested again

lib/models/filedownloadprogress.dart

@@ -7,8 +7,10 @@ class FileDownloadProgress {
   String? downloadedTo;
   DateTime? timeStart;
   DateTime? timeEnd;
+  DateTime? requested;
 
   FileDownloadProgress(this.chunksTotal, this.timeStart);
+
   double progress() {
     return 1.0 * chunksDownloaded / chunksTotal;
   }

lib/models/profile.dart

@@ -291,12 +291,27 @@ class ProfileInfoState extends ChangeNotifier {
   }
 
   bool downloadInterrupted(String fileKey) {
-    return this._downloads.containsKey(fileKey) && this._downloads[fileKey]!.interrupted;
+    if (this._downloads.containsKey(fileKey)) {
+      if (this._downloads[fileKey]!.interrupted) {
+        return true;
+      }
+
+      if (this._downloads[fileKey]!.requested != null) {
+        if (DateTime.now().difference(this._downloads[fileKey]!.requested!) > Duration(minutes: 1)) {
+          this._downloads[fileKey]!.requested = null;
+          this._downloads[fileKey]!.interrupted = true;
+          return true;
+        }
+      }
+    }
+
+    return false;
   }
 
   void downloadMarkResumed(String fileKey) {
     if (this._downloads.containsKey(fileKey)) {
       this._downloads[fileKey]!.interrupted = false;
+      this._downloads[fileKey]!.requested = DateTime.now();
       notifyListeners();
     }
   }

lib/views/messageview.dart

@@ -99,8 +99,10 @@ class _MessageViewState extends State<MessageView> {
     var showFileSharing = Provider.of<Settings>(context).isExperimentEnabled(FileSharingExperiment);
     var appBarButtons = <Widget>[];
 
-    appBarButtons.add(
+    if (showFileSharing) {
-        IconButton(splashRadius: Material.defaultSplashRadius / 2, icon: Icon(Icons.folder_shared), tooltip: AppLocalizations.of(context)!.conversationSettings, onPressed: _pushFileSharingSettings));
+      appBarButtons.add(IconButton(
+          splashRadius: Material.defaultSplashRadius / 2, icon: Icon(Icons.folder_shared), tooltip: AppLocalizations.of(context)!.conversationSettings, onPressed: _pushFileSharingSettings));
+    }
 
     if (Provider.of<ContactInfoState>(context).isOnline()) {
       if (showFileSharing) {