Fixed grey screen while file downloading

lib/services/download_file.dart

@@ -79,7 +79,10 @@ Future<void> downloadFile(
                 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/75.0.3770.100 Safari/537.36'
           }),
           onReceiveProgress: (rcv, total) {
-            onProgress(rcv, total);
+            if (!(rcv.isNaN || rcv.isInfinite) &&
+                !(total.isNaN || total.isInfinite)) {
+              onProgress(rcv, total);
+            }
           },
           deleteOnError: true,
           cancelToken: cancelToken,
@@ -97,7 +100,7 @@ Future<void> downloadFile(
         onDownlaodFailed('downloaded Failed! try again...');
       }
     } else {
-      onDownlaodFailed('downloaded Failed! try again...');
+      onDownlaodFailed('No working mirrors available to download book!');
     }
   }
 }

lib/ui/book_info_page.dart

@@ -233,51 +233,47 @@ Future<void> downloadFileWidget(
         ref.read(downloadState.notifier).state = ProcessState.running;
       },
       onProgress: (int rcv, int total) async {
-        if (!rcv.isNaN && !total.isNaN) {
+        if (ref.read(totalFileSizeInBytes) != total) {
-          if (ref.read(totalFileSizeInBytes) != total) {
+          ref.read(totalFileSizeInBytes.notifier).state = total;
-            ref.read(totalFileSizeInBytes.notifier).state = total;
+        }
-          }
+        ref.read(downloadedFileSizeInBytes.notifier).state = rcv;
-          ref.read(downloadedFileSizeInBytes.notifier).state = rcv;
+        ref.read(downloadProgressProvider.notifier).state = rcv / total;
-          ref.read(downloadProgressProvider.notifier).state = rcv / total;
 
-          if (rcv / total == 1.0) {
+        if (rcv / total == 1.0) {
-            await ref.read(dbProvider).insert(MyBook(
+          await ref.read(dbProvider).insert(MyBook(
-                id: data.md5,
+              id: data.md5,
-                title: data.title,
+              title: data.title,
-                author: data.author,
+              author: data.author,
-                thumbnail: data.thumbnail,
+              thumbnail: data.thumbnail,
-                link: data.link,
+              link: data.link,
-                publisher: data.publisher,
+              publisher: data.publisher,
-                info: data.info,
+              info: data.info,
-                format: data.format,
+              format: data.format,
-                description: data.description));
+              description: data.description));
 
-            ref.read(downloadState.notifier).state = ProcessState.complete;
+          ref.read(downloadState.notifier).state = ProcessState.complete;
-            ref.read(checkSumState.notifier).state =
+          ref.read(checkSumState.notifier).state = CheckSumProcessState.running;
-                CheckSumProcessState.running;
 
-            try {
+          try {
-              final checkSum = await verifyFileCheckSum(
+            final checkSum = await verifyFileCheckSum(
-                  md5Hash: data.md5, format: data.format);
+                md5Hash: data.md5, format: data.format);
-              if (checkSum == true) {
+            if (checkSum == true) {
-                ref.read(checkSumState.notifier).state =
+              ref.read(checkSumState.notifier).state =
-                    CheckSumProcessState.success;
+                  CheckSumProcessState.success;
-              } else {
+            } else {
-                ref.read(checkSumState.notifier).state =
-                    CheckSumProcessState.failed;
-              }
-            } catch (_) {
               ref.read(checkSumState.notifier).state =
                   CheckSumProcessState.failed;
             }
-            // ignore: unused_result
+          } catch (_) {
-            ref.refresh(checkIdExists(data.md5));
+            ref.read(checkSumState.notifier).state =
-            // ignore: unused_result
+                CheckSumProcessState.failed;
-            ref.refresh(myLibraryProvider);
-            // ignore: use_build_context_synchronously
-            showSnackBar(
-                context: context, message: 'Book has been downloaded!');
           }
+          // ignore: unused_result
+          ref.refresh(checkIdExists(data.md5));
+          // ignore: unused_result
+          ref.refresh(myLibraryProvider);
+          // ignore: use_build_context_synchronously
+          showSnackBar(context: context, message: 'Book has been downloaded!');
         }
       },
       cancelDownlaod: (CancelToken downloadToken) {
@@ -309,7 +305,7 @@ class _ShowDialog extends ConsumerWidget {
     if (downloadProgress == 1.0 &&
         (checkSumVerifyState == CheckSumProcessState.failed ||
             checkSumVerifyState == CheckSumProcessState.success)) {
-      Future.delayed(const Duration(seconds: 2), () {
+      Future.delayed(const Duration(seconds: 1), () {
         Navigator.of(context).pop();
         if (checkSumVerifyState == CheckSumProcessState.failed) {
           _showWarningFileDialog(context);

pubspec.lock

@@ -37,26 +37,26 @@ packages:
     dependency: "direct main"
     description:
       name: cached_network_image
-      sha256: "28ea9690a8207179c319965c13cd8df184d5ee721ae2ce60f398ced1219cea1f"
+      sha256: f98972704692ba679db144261172a8e20feb145636c617af0eb4022132a6797f
       url: "https://pub.dev"
     source: hosted
-    version: "3.3.1"
+    version: "3.3.0"
   cached_network_image_platform_interface:
     dependency: transitive
     description:
       name: cached_network_image_platform_interface
-      sha256: "9e90e78ae72caa874a323d78fa6301b3fb8fa7ea76a8f96dc5b5bf79f283bf2f"
+      sha256: "56aa42a7a01e3c9db8456d9f3f999931f1e05535b5a424271e9a38cabf066613"
       url: "https://pub.dev"
     source: hosted
-    version: "4.0.0"
+    version: "3.0.0"
   cached_network_image_web:
     dependency: transitive
     description:
       name: cached_network_image_web
-      sha256: "42a835caa27c220d1294311ac409a43361088625a4f23c820b006dd9bffb3316"
+      sha256: "759b9a9f8f6ccbb66c185df805fac107f05730b1dab9c64626d1008cca532257"
       url: "https://pub.dev"
     source: hosted
-    version: "1.1.1"
+    version: "1.1.0"
   characters:
     dependency: transitive
     description:
@@ -73,14 +73,6 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "2.0.3"
-  chunked_downloader:
-    dependency: "direct main"
-    description:
-      name: chunked_downloader
-      sha256: "7fe3a37a0c7fb1d41f3f922c30937fdccae2647b6f6f71778bffcf4823048754"
-      url: "https://pub.dev"
-    source: hosted
-    version: "0.0.2"
   cli_util:
     dependency: transitive
     description:
@@ -258,10 +250,10 @@ packages:
     dependency: "direct main"
     description:
       name: flutter_riverpod
-      sha256: da9591d1f8d5881628ccd5c25c40e74fc3eef50ba45e40c3905a06e1712412d5
+      sha256: "4bce556b7ecbfea26109638d5237684538d4abc509d253e6c5c4c5733b360098"
       url: "https://pub.dev"
     source: hosted
-    version: "2.4.9"
+    version: "2.4.10"
   flutter_svg:
     dependency: "direct main"
     description:
@@ -292,10 +284,10 @@ packages:
     dependency: "direct main"
     description:
       name: google_fonts
-      sha256: "6b6f10f0ce3c42f6552d1c70d2c28d764cf22bb487f50f66cca31dcd5194f4d6"
+      sha256: f0b8d115a13ecf827013ec9fc883390ccc0e87a96ed5347a3114cac177ef18e8
       url: "https://pub.dev"
     source: hosted
-    version: "4.0.4"
+    version: "6.1.0"
   google_nav_bar:
     dependency: "direct main"
     description:
@@ -316,10 +308,10 @@ packages:
     dependency: transitive
     description:
       name: http
-      sha256: "5895291c13fa8a3bd82e76d5627f69e0d85ca6a30dcac95c4ea19a5d555879c2"
+      sha256: a2bbf9d017fcced29139daa8ed2bba4ece450ab222871df93ca9eec6f80c34ba
       url: "https://pub.dev"
     source: hosted
-    version: "0.13.6"
+    version: "1.2.0"
   http_parser:
     dependency: transitive
     description:
@@ -564,10 +556,10 @@ packages:
     dependency: transitive
     description:
       name: riverpod
-      sha256: "942999ee48b899f8a46a860f1e13cee36f2f77609eb54c5b7a669bb20d550b11"
+      sha256: "548e2192eb7aeb826eb89387f814edb76594f3363e2c0bb99dd733d795ba3589"
       url: "https://pub.dev"
     source: hosted
-    version: "2.4.9"
+    version: "2.5.0"
   rxdart:
     dependency: transitive
     description:

pubspec.yaml

@@ -51,10 +51,9 @@ dependencies:
   webview_cookie_manager: ^2.0.6
 
   flutter_svg: ^2.0.7
-  google_fonts: ^4.0.4
+  google_fonts: ^6.1.0
 
-  cached_network_image: ^3.3.1
+  cached_network_image: 3.3.0
-  chunked_downloader: ^0.0.2
 
   sqflite_common_ffi: ^2.3.0+2
   url_launcher: ^6.1.12