chore: Update Document Scanner to use latest dependency (#834)

Author: bensonarafat

README.md

@@ -18,7 +18,7 @@ Google's ML Kit for Flutter is a set of [Flutter plugins](https://flutter.io/pla
 | [Pose Detection (Beta)](https://developers.google.com/ml-kit/vision/pose-detection)             | [google_mlkit_pose_detection](https://pub.dev/packages/google_mlkit_pose_detection) [![Pub Version](https://img.shields.io/pub/v/google_mlkit_pose_detection)](https://pub.dev/packages/google_mlkit_pose_detection)                                     | [![GitHub](https://img.shields.io/badge/github-%23121011.svg?style=for-the-badge&logo=github&logoColor=white)](https://github.com/flutter-ml/google_ml_kit_flutter/tree/master/packages/google_mlkit_pose_detection)          | ✅      | ✅  |
 | [Selfie Segmentation (Beta)](https://developers.google.com/ml-kit/vision/selfie-segmentation)   | [google_mlkit_selfie_segmentation](https://pub.dev/packages/google_mlkit_selfie_segmentation) [![Pub Version](https://img.shields.io/pub/v/google_mlkit_selfie_segmentation)](https://pub.dev/packages/google_mlkit_selfie_segmentation)                 | [![GitHub](https://img.shields.io/badge/github-%23121011.svg?style=for-the-badge&logo=github&logoColor=white)](https://github.com/flutter-ml/google_ml_kit_flutter/tree/master/packages/google_mlkit_selfie_segmentation)     | ✅      | ✅  |
 | [Subject Segmentation (Beta)](https://developers.google.com/ml-kit/vision/subject-segmentation) | [google_mlkit_subject_segmentation](https://pub.dev/packages/google_mlkit_subject_segmentation) [![Pub Version](https://img.shields.io/pub/v/google_mlkit_subject_segmentation)](https://pub.dev/packages/google_mlkit_subject_segmentation)             | [![GitHub](https://img.shields.io/badge/github-%23121011.svg?style=for-the-badge&logo=github&logoColor=white)](https://github.com/flutter-ml/google_ml_kit_flutter/tree/master/packages/google_mlkit_subject_segmentation)    | ✅      | ❌  |
-| [Document Scanner (Beta)](https://developers.google.com/ml-kit/vision/doc-scanner)              | [google_mlkit_document_scanner](https://pub.dev/packages/google_mlkit_document_scanner) [![Pub Version](https://img.shields.io/pub/v/google_mlkit_document_scanner)](https://pub.dev/packages/google_mlkit_document_scanner)                             | [![GitHub](https://img.shields.io/badge/github-%23121011.svg?style=for-the-badge&logo=github&logoColor=white)](https://github.com/flutter-ml/google_ml_kit_flutter/tree/master/packages/google_mlkit_document_scanner)        | ✅      | ❌  |
+| [Document Scanner](https://developers.google.com/ml-kit/vision/doc-scanner)              | [google_mlkit_document_scanner](https://pub.dev/packages/google_mlkit_document_scanner) [![Pub Version](https://img.shields.io/pub/v/google_mlkit_document_scanner)](https://pub.dev/packages/google_mlkit_document_scanner)                             | [![GitHub](https://img.shields.io/badge/github-%23121011.svg?style=for-the-badge&logo=github&logoColor=white)](https://github.com/flutter-ml/google_ml_kit_flutter/tree/master/packages/google_mlkit_document_scanner)        | ✅      | ❌   |
 
 ### Natural Language APIs
 

packages/example/lib/vision_detector_views/document_scanner_view.dart

@@ -1,9 +1,13 @@
+import 'dart:collection';
 import 'dart:io';
 
 import 'package:flutter/material.dart';
 import 'package:flutter_pdfview/flutter_pdfview.dart';
 import 'package:google_mlkit_document_scanner/google_mlkit_document_scanner.dart';
 
+typedef MenuEntry = DropdownMenuEntry<String>;
+const List<String> list = <String>['Select option', 'pdf', 'jpeg', 'pdf-jpeg'];
+
 class DocumentScannerView extends StatefulWidget {
   @override
   State<DocumentScannerView> createState() => _DocumentScannerViewState();
@@ -12,7 +16,11 @@ class DocumentScannerView extends StatefulWidget {
 class _DocumentScannerViewState extends State<DocumentScannerView> {
   DocumentScanner? _documentScanner;
   DocumentScanningResult? _result;
-
+  static final List<MenuEntry> menuEntries = UnmodifiableListView<MenuEntry>(
+      list.map<MenuEntry>((String name) => MenuEntry(
+          value: name,
+          label:
+              name == 'Select option' ? name : 'Scan ${name.toUpperCase()}')));
   @override
   void dispose() {
     _documentScanner?.close();
@@ -27,103 +35,84 @@ class _DocumentScannerViewState extends State<DocumentScannerView> {
         centerTitle: true,
         elevation: 0,
       ),
-      body: Center(
-        child: Column(
-          mainAxisAlignment: MainAxisAlignment.start,
-          children: [
-            Row(
-              mainAxisAlignment: MainAxisAlignment.center,
-              children: [
-                Icon(
-                  Icons.document_scanner_outlined,
-                  size: 50,
-                ),
-                SizedBox(width: 8),
-                ElevatedButton(
-                  style: ButtonStyle(
-                    backgroundColor:
-                        WidgetStateProperty.all<Color>(Colors.black),
-                    shape: WidgetStateProperty.all(
-                      RoundedRectangleBorder(
-                        borderRadius: BorderRadius.circular(8),
-                      ),
-                    ),
-                  ),
-                  onPressed: () => startScan(DocumentFormat.pdf),
-                  child: Padding(
-                    padding: const EdgeInsets.symmetric(vertical: 4),
-                    child: const Text(
-                      'Scan PDF',
-                      style: TextStyle(color: Colors.white),
-                    ),
+      body: SingleChildScrollView(
+        child: Center(
+          child: Column(
+            mainAxisAlignment: MainAxisAlignment.start,
+            children: [
+              Row(
+                mainAxisAlignment: MainAxisAlignment.center,
+                children: [
+                  Icon(
+                    Icons.document_scanner_outlined,
+                    size: 50,
                   ),
+                  SizedBox(width: 8),
+                  DropdownMenu<String>(
+                      initialSelection: list.first,
+                      onSelected: (String? value) {
+                        if (value != null) {
+                          if (value == 'pdf') {
+                            startScan({DocumentFormat.pdf});
+                          }
+                          if (value == 'jpeg') {
+                            startScan({DocumentFormat.jpeg});
+                          }
+                          if (value == 'pdf-jpeg') {
+                            startScan(
+                                {DocumentFormat.pdf, DocumentFormat.jpeg});
+                          }
+                        }
+                      },
+                      dropdownMenuEntries: menuEntries),
+                ],
+              ),
+              if (_result?.pdf != null) ...[
+                Padding(
+                  padding: const EdgeInsets.only(
+                      top: 16, bottom: 8, right: 8, left: 8),
+                  child: Align(
+                      alignment: Alignment.centerLeft,
+                      child: Text('PDF Document:')),
                 ),
-                SizedBox(width: 8),
-                ElevatedButton(
-                  style: ButtonStyle(
-                    backgroundColor:
-                        WidgetStateProperty.all<Color>(Colors.black),
-                    shape: WidgetStateProperty.all(
-                      RoundedRectangleBorder(
-                        borderRadius: BorderRadius.circular(8),
-                      ),
-                    ),
-                  ),
-                  onPressed: () => startScan(DocumentFormat.jpeg),
-                  child: Padding(
-                    padding: const EdgeInsets.symmetric(vertical: 4),
-                    child: const Text(
-                      'Scan JPEG',
-                      style: TextStyle(color: Colors.white),
-                    ),
+                SizedBox(
+                  height: 300,
+                  child: PDFView(
+                    filePath: _result!.pdf!.uri,
+                    enableSwipe: true,
+                    swipeHorizontal: true,
+                    autoSpacing: false,
+                    pageFling: false,
                   ),
                 ),
               ],
-            ),
-            if (_result?.pdf != null) ...[
-              Padding(
-                padding: const EdgeInsets.only(
-                    top: 16, bottom: 8, right: 8, left: 8),
-                child: Align(
-                    alignment: Alignment.centerLeft,
-                    child: Text('PDF Document:')),
-              ),
-              SizedBox(
-                height: 300,
-                child: PDFView(
-                  filePath: _result!.pdf!.uri,
-                  enableSwipe: true,
-                  swipeHorizontal: true,
-                  autoSpacing: false,
-                  pageFling: false,
+              if (_result?.images?.isNotEmpty == true) ...[
+                Padding(
+                  padding: const EdgeInsets.only(
+                      top: 16, bottom: 8, right: 8, left: 8),
+                  child: Align(
+                      alignment: Alignment.centerLeft,
+                      child: Text('Images [0]:')),
                 ),
-              ),
-            ],
-            if (_result?.images.isNotEmpty == true) ...[
-              Padding(
-                padding: const EdgeInsets.only(
-                    top: 16, bottom: 8, right: 8, left: 8),
-                child: Align(
-                    alignment: Alignment.centerLeft,
-                    child: Text('Images [0]:')),
-              ),
-              SizedBox(
-                  height: 400, child: Image.file(File(_result!.images.first))),
+                SizedBox(
+                    height: 400,
+                    child: Image.file(File(_result!.images!.first))),
+              ],
             ],
-          ],
+          ),
         ),
       ),
     );
   }
 
-  void startScan(DocumentFormat format) async {
+  void startScan(Set<DocumentFormat> formats) async {
     try {
       _result = null;
       setState(() {});
       _documentScanner?.close();
       _documentScanner = DocumentScanner(
         options: DocumentScannerOptions(
-          documentFormat: format,
+          documentFormats: formats,
           mode: ScannerMode.full,
           isGalleryImport: false,
           pageLimit: 1,

packages/google_mlkit_document_scanner/README.md

@@ -55,7 +55,7 @@ The document scanner API provides a high-quality fully fledged UI flow that is c
 
 ### iOS
 
-This feature is still in Beta, and it is only available for Android. Stay tune for updates in [Google's website](https://developers.google.com/ml-kit/vision/doc-scanner) and request the feature [here](https://github.com/googlesamples/mlkit/issues).
+This feature is only available for Android. Stay tune for updates in [Google's website](https://developers.google.com/ml-kit/vision/doc-scanner) and request the feature [here](https://github.com/googlesamples/mlkit/issues).
 
 ### Android
 
@@ -70,8 +70,13 @@ This feature is still in Beta, and it is only available for Android. Stay tune f
 #### Create an instance of `DocumentScannerOptions`
 
 ```dart
+// set output document formats
+const Set<DocumentFormat> documentFormats = {
+    DocumentFormat.jpeg,
+    DocumentFormat.pdf
+};
 DocumentScannerOptions documentOptions = DocumentScannerOptions(
-  documentFormat: DocumentFormat.jpeg, // set output document format
+  documentFormats: documentFormats, 
   mode: ScannerMode.filter, // to control what features are enabled
   pageLimit: 1, // setting a limit to the number of pages scanned
   isGalleryImport: true, // importing from the photo gallery

packages/google_mlkit_document_scanner/android/build.gradle

@@ -36,6 +36,6 @@ android {
     }
 
     dependencies {
-        implementation("com.google.android.gms:play-services-mlkit-document-scanner:16.0.0-beta1")
+        implementation("com.google.android.gms:play-services-mlkit-document-scanner:16.0.0")
     }
 }

packages/google_mlkit_document_scanner/android/gradle/wrapper/gradle-wrapper.properties

@@ -0,0 +1,7 @@
+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-9.0-milestone-1-bin.zip
+networkTimeout=10000
+validateDistributionUrl=true
+zipStoreBase=GRADLE_USER_HOME
+zipStorePath=wrapper/dists

packages/google_mlkit_document_scanner/android/src/main/java/com/google_mlkit_document_scanner/DocumentScanner.java

@@ -95,17 +95,21 @@ public void onFailure(@NonNull Exception e) {
     private GmsDocumentScannerOptions parseOptions(Map<String, Object> options) {
         boolean isGalleryImportAllowed = (boolean) options.get("isGalleryImport");
         int pageLimit = (int) options.get("pageLimit");
-        int format;
-        switch ((String) Objects.requireNonNull(options.get("format"))) {
-            case "pdf":
-                format = GmsDocumentScannerOptions.RESULT_FORMAT_PDF;
-                break;
-            case "jpeg":
-                format = GmsDocumentScannerOptions.RESULT_FORMAT_JPEG;
-                break;
-            default:
-                throw new IllegalArgumentException("Not a format:" + options.get("format"));
+        List<String> formatStrings = (List<String>) options.get("formats");
+        List<Integer> formatConstants = new ArrayList<>();
+        for (String format: formatStrings) {
+            switch (format) {
+                case "pdf":
+                    formatConstants.add(GmsDocumentScannerOptions.RESULT_FORMAT_PDF);
+                    break;
+                case "jpeg":
+                    formatConstants.add(GmsDocumentScannerOptions.RESULT_FORMAT_JPEG);
+                    break;
+                default:
+                    throw new IllegalArgumentException("Not a format:" + options.get("format"));
+            }
         }
+
         int mode;
         switch ((String) options.get("mode")) {
             case "base":
@@ -120,7 +124,21 @@ private GmsDocumentScannerOptions parseOptions(Map<String, Object> options) {
             default:
                 throw new IllegalArgumentException("Not a mode:" + options.get("mode"));
         }
-        GmsDocumentScannerOptions.Builder builder = new GmsDocumentScannerOptions.Builder().setGalleryImportAllowed(isGalleryImportAllowed).setPageLimit(pageLimit).setResultFormats(format).setScannerMode(mode);
+        GmsDocumentScannerOptions.Builder builder = new GmsDocumentScannerOptions
+                .Builder()
+                .setGalleryImportAllowed(isGalleryImportAllowed)
+                .setPageLimit(pageLimit)
+                .setScannerMode(mode);
+
+        // Set formats
+        if (!formatConstants.isEmpty()) {
+            if(formatConstants.size() > 1) {
+                builder.setResultFormats(formatConstants.get(0), formatConstants.get(1));
+            } else {
+                builder.setResultFormats(formatConstants.get(0));
+            }
+
+        }
         return builder.build();
     }
 

packages/google_mlkit_document_scanner/lib/src/document_scanner.dart

@@ -35,7 +35,7 @@ class DocumentScanner {
 class DocumentScannerOptions {
   /// Constructor for [DocumentScannerOptions].
   DocumentScannerOptions({
-    this.documentFormat = DocumentFormat.jpeg,
+    this.documentFormats = const {DocumentFormat.jpeg},
     this.pageLimit = 1,
     this.mode = ScannerMode.full,
     this.isGalleryImport = false,
@@ -46,7 +46,7 @@ class DocumentScannerOptions {
 
   /// Sets scanner result formats.
   /// Available formats: PDF, JPG and default format is JPG.
-  final DocumentFormat documentFormat;
+  final Set<DocumentFormat> documentFormats;
 
   /// Sets the scanner mode which determines what features are enabled. default = ScannerModel.full.
   final ScannerMode mode;
@@ -57,7 +57,7 @@ class DocumentScannerOptions {
   /// Returns a json representation of an instance of [DocumentScannerOptions].
   Map<String, dynamic> toJson() => {
         'pageLimit': pageLimit,
-        'format': documentFormat.name,
+        'formats': documentFormats.map((f) => f.name).toList(),
         'mode': mode.name,
         'isGalleryImport': isGalleryImport,
       };
@@ -82,7 +82,7 @@ class DocumentScanningResult {
   final DocumentScanningResultPdf? pdf;
 
   /// Returns the scanned images or null if `DocumentFormat.jpeg` was not specified when creating the scanner options.
-  final List<String> images;
+  final List<String>? images;
 
   /// Constructor to create an instance of [DocumentScanningResult].
   DocumentScanningResult({required this.pdf, required this.images});