updated add_to_app sample to pigeon 1.0 (#894)

add_to_app/books/android_books/app/src/main/java/dev/flutter/example/books/Api.java

@@ -1,16 +1,23 @@
-// Autogenerated from Pigeon (v0.1.17), do not edit directly.
+// Autogenerated from Pigeon (v1.0.1), do not edit directly.
 // See also: https://pub.dev/packages/pigeon
 
 package dev.flutter.example.books;
 
 import io.flutter.plugin.common.BasicMessageChannel;
 import io.flutter.plugin.common.BinaryMessenger;
+import io.flutter.plugin.common.MessageCodec;
 import io.flutter.plugin.common.StandardMessageCodec;
+import java.io.ByteArrayOutputStream;
+import java.nio.ByteBuffer;
 import java.util.ArrayList;
+import java.util.Arrays;
 import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
 
 /** Generated class from Pigeon. */
-@SuppressWarnings("unused")
+@SuppressWarnings(
+    {"unused", "unchecked", "CodeBlock2Expr", "RedundantSuppression"})
 public class Api {
 
   /** Generated class from Pigeon that represents data sent in messages. */
@@ -33,23 +40,33 @@ public class Api {
 
     private String publishDate;
     public String getPublishDate() { return publishDate; }
-    public void setPublishDate(String setterArg) { this.publishDate = setterArg; }
+    public void setPublishDate(String setterArg) {
+      this.publishDate = setterArg;
+    }
 
     private Long pageCount;
     public Long getPageCount() { return pageCount; }
     public void setPageCount(Long setterArg) { this.pageCount = setterArg; }
 
-    HashMap toMap() {
+    private Thumbnail thumbnail;
-      HashMap<String, Object> toMapResult = new HashMap<>();
+    public Thumbnail getThumbnail() { return thumbnail; }
+    public void setThumbnail(Thumbnail setterArg) {
+      this.thumbnail = setterArg;
+    }
+
+    Map<String, Object> toMap() {
+      Map<String, Object> toMapResult = new HashMap<>();
       toMapResult.put("title", title);
       toMapResult.put("subtitle", subtitle);
       toMapResult.put("author", author);
       toMapResult.put("summary", summary);
       toMapResult.put("publishDate", publishDate);
       toMapResult.put("pageCount", pageCount);
+      toMapResult.put("thumbnail",
+                      (thumbnail == null) ? null : thumbnail.toMap());
       return toMapResult;
     }
-    static Book fromMap(HashMap map) {
+    static Book fromMap(Map<String, Object> map) {
       Book fromMapResult = new Book();
       Object title = map.get("title");
       fromMapResult.title = (String)title;
@@ -62,12 +79,64 @@ public class Api {
       Object publishDate = map.get("publishDate");
       fromMapResult.publishDate = (String)publishDate;
       Object pageCount = map.get("pageCount");
-      fromMapResult.pageCount = (pageCount == null) ? null : ((pageCount instanceof Integer) ? (Integer)pageCount : (Long)pageCount);
+      fromMapResult.pageCount =
+          (pageCount == null)
+              ? null
+              : ((pageCount instanceof Integer) ? (Integer)pageCount
+                                                : (Long)pageCount);
+      Object thumbnail = map.get("thumbnail");
+      fromMapResult.thumbnail = Thumbnail.fromMap((Map)thumbnail);
       return fromMapResult;
     }
   }
 
-  /** Generated class from Pigeon that represents Flutter messages that can be called from Java.*/
+  /** Generated class from Pigeon that represents data sent in messages. */
+  public static class Thumbnail {
+    private String url;
+    public String getUrl() { return url; }
+    public void setUrl(String setterArg) { this.url = setterArg; }
+
+    Map<String, Object> toMap() {
+      Map<String, Object> toMapResult = new HashMap<>();
+      toMapResult.put("url", url);
+      return toMapResult;
+    }
+    static Thumbnail fromMap(Map<String, Object> map) {
+      Thumbnail fromMapResult = new Thumbnail();
+      Object url = map.get("url");
+      fromMapResult.url = (String)url;
+      return fromMapResult;
+    }
+  }
+  private static class FlutterBookApiCodec extends StandardMessageCodec {
+    public static final FlutterBookApiCodec INSTANCE =
+        new FlutterBookApiCodec();
+    private FlutterBookApiCodec() {}
+    @Override
+    protected Object readValueOfType(byte type, ByteBuffer buffer) {
+      switch (type) {
+      case (byte)128:
+        return Book.fromMap((Map<String, Object>)readValue(buffer));
+
+      default:
+        return super.readValueOfType(type, buffer);
+      }
+    }
+    @Override
+    protected void writeValue(ByteArrayOutputStream stream, Object value) {
+      if (value instanceof Book) {
+        stream.write(128);
+        writeValue(stream, ((Book)value).toMap());
+      } else {
+        super.writeValue(stream, value);
+      }
+    }
+  }
+
+  /**
+   * Generated class from Pigeon that represents Flutter messages that can be
+   * called from Java.
+   */
   public static class FlutterBookApi {
     private final BinaryMessenger binaryMessenger;
     public FlutterBookApi(BinaryMessenger argBinaryMessenger) {
@@ -76,34 +145,69 @@ public class Api {
     public interface Reply<T> {
       void reply(T reply);
     }
-    public void displayBookDetails(Book argInput, Reply<Void> callback) {
+    static MessageCodec<Object> getCodec() {
-      BasicMessageChannel<Object> channel =
+      return FlutterBookApiCodec.INSTANCE;
-          new BasicMessageChannel<>(binaryMessenger, "dev.flutter.pigeon.FlutterBookApi.displayBookDetails", new StandardMessageCodec());
+    }
-      HashMap inputMap = argInput.toMap();
+
-      channel.send(inputMap, channelReply -> {
+    public void displayBookDetails(Book bookArg, Reply<Void> callback) {
-        callback.reply(null);
+      BasicMessageChannel<Object> channel = new BasicMessageChannel<>(
-      });
+          binaryMessenger,
+          "dev.flutter.pigeon.FlutterBookApi.displayBookDetails", getCodec());
+      channel.send(new ArrayList<Object>(Arrays.asList(bookArg)),
+                   channelReply -> { callback.reply(null); });
+    }
+  }
+  private static class HostBookApiCodec extends StandardMessageCodec {
+    public static final HostBookApiCodec INSTANCE = new HostBookApiCodec();
+    private HostBookApiCodec() {}
+    @Override
+    protected Object readValueOfType(byte type, ByteBuffer buffer) {
+      switch (type) {
+      case (byte)128:
+        return Book.fromMap((Map<String, Object>)readValue(buffer));
+
+      default:
+        return super.readValueOfType(type, buffer);
+      }
+    }
+    @Override
+    protected void writeValue(ByteArrayOutputStream stream, Object value) {
+      if (value instanceof Book) {
+        stream.write(128);
+        writeValue(stream, ((Book)value).toMap());
+      } else {
+        super.writeValue(stream, value);
+      }
     }
   }
 
-  /** Generated interface from Pigeon that represents a handler of messages from Flutter.*/
+  /**
+   * Generated interface from Pigeon that represents a handler of messages from
+   * Flutter.
+   */
   public interface HostBookApi {
     void cancel();
-    void finishEditingBook(Book arg);
+    void finishEditingBook(Book book);
+
+    /** The codec used by HostBookApi. */
+    static MessageCodec<Object> getCodec() { return HostBookApiCodec.INSTANCE; }
 
-    /** Sets up an instance of `HostBookApi` to handle messages through the `binaryMessenger` */
+    /**
+     * Sets up an instance of `HostBookApi` to handle messages through the
+     * `binaryMessenger`.
+     */
     static void setup(BinaryMessenger binaryMessenger, HostBookApi api) {
       {
-        BasicMessageChannel<Object> channel =
+        BasicMessageChannel<Object> channel = new BasicMessageChannel<>(
-            new BasicMessageChannel<>(binaryMessenger, "dev.flutter.pigeon.HostBookApi.cancel", new StandardMessageCodec());
+            binaryMessenger, "dev.flutter.pigeon.HostBookApi.cancel",
+            getCodec());
         if (api != null) {
           channel.setMessageHandler((message, reply) -> {
-            HashMap<String, HashMap> wrapped = new HashMap<>();
+            Map<String, Object> wrapped = new HashMap<>();
             try {
               api.cancel();
               wrapped.put("result", null);
-            }
+            } catch (Error | RuntimeException exception) {
-            catch (Exception exception) {
               wrapped.put("error", wrapError(exception));
             }
             reply.reply(wrapped);
@@ -113,18 +217,21 @@ public class Api {
         }
       }
       {
-        BasicMessageChannel<Object> channel =
+        BasicMessageChannel<Object> channel = new BasicMessageChannel<>(
-            new BasicMessageChannel<>(binaryMessenger, "dev.flutter.pigeon.HostBookApi.finishEditingBook", new StandardMessageCodec());
+            binaryMessenger, "dev.flutter.pigeon.HostBookApi.finishEditingBook",
+            getCodec());
         if (api != null) {
           channel.setMessageHandler((message, reply) -> {
-            HashMap<String, HashMap> wrapped = new HashMap<>();
+            Map<String, Object> wrapped = new HashMap<>();
             try {
-              @SuppressWarnings("ConstantConditions")
+              ArrayList<Object> args = (ArrayList<Object>)message;
-              Book input = Book.fromMap((HashMap)message);
+              Book bookArg = (Book)args.get(0);
-              api.finishEditingBook(input);
+              if (bookArg == null) {
-              wrapped.put("result", null);
+                throw new NullPointerException("bookArg unexpectedly null.");
               }
-            catch (Exception exception) {
+              api.finishEditingBook(bookArg);
+              wrapped.put("result", null);
+            } catch (Error | RuntimeException exception) {
               wrapped.put("error", wrapError(exception));
             }
             reply.reply(wrapped);
@@ -135,8 +242,8 @@ public class Api {
       }
     }
   }
-  private static HashMap wrapError(Exception exception) {
+  private static Map<String, Object> wrapError(Throwable exception) {
-    HashMap<String, Object> errorMap = new HashMap<>();
+    Map<String, Object> errorMap = new HashMap<>();
     errorMap.put("message", exception.toString());
     errorMap.put("code", exception.getClass().getSimpleName());
     errorMap.put("details", null);

add_to_app/books/android_books/app/src/main/java/dev/flutter/example/books/FlutterBookActivity.kt

@@ -43,7 +43,7 @@ class FlutterBookActivity: FlutterActivity() {
                     // TODO(gaaclarke): the Pigeon generated data class should just implement
                     // Serializable so we won't need 'toMap()' here
                     // https://github.com/flutter/flutter/issues/58909
-                    book.toMap()
+                    HashMap(book.toMap())
                 )
         }
 
@@ -54,7 +54,7 @@ class FlutterBookActivity: FlutterActivity() {
          *                     activity's {@code onActivityResult}.
          */
         fun getBookFromResultIntent(resultIntent: Intent): Api.Book {
-            return Api.Book.fromMap(resultIntent.getSerializableExtra(FlutterBookActivity.EXTRA_BOOK) as HashMap<*, *>);
+            return Api.Book.fromMap((resultIntent.getSerializableExtra(FlutterBookActivity.EXTRA_BOOK) as HashMap<String, Any>));
         }
     }
 
@@ -68,7 +68,7 @@ class FlutterBookActivity: FlutterActivity() {
 
         // The book to give to Flutter is passed in from the MainActivity via this activity's
         // source intent getter. The intent contains the book serialized as on extra.
-        val bookToShow = Api.Book.fromMap(intent.getSerializableExtra(EXTRA_BOOK) as HashMap<*, *>)
+        val bookToShow = Api.Book.fromMap(intent.getSerializableExtra(EXTRA_BOOK) as HashMap<String, Any>)
 
         // Register the HostBookApiHandler callback class to get results from Flutter.
         Api.HostBookApi.setup(flutterEngine.dartExecutor, HostBookApiHandler())
@@ -94,7 +94,7 @@ class FlutterBookActivity: FlutterActivity() {
             }
             // Flutter returned an edited book instance. Return it to the MainActivity via the
             // standard Android Activity set result mechanism.
-            setResult(Activity.RESULT_OK, Intent().putExtra(EXTRA_BOOK, book.toMap()))
+            setResult(Activity.RESULT_OK, Intent().putExtra(EXTRA_BOOK, HashMap(book.toMap())))
             finish()
         }
     }

add_to_app/books/flutter_module_books/lib/api.dart

@@ -1,61 +1,107 @@
-// Autogenerated from Pigeon (v0.1.17), do not edit directly.
+// Autogenerated from Pigeon (v1.0.1), do not edit directly.
 // See also: https://pub.dev/packages/pigeon
-// ignore_for_file: public_member_api_docs, non_constant_identifier_names, avoid_as, unused_import
+// ignore_for_file: public_member_api_docs, non_constant_identifier_names, avoid_as, unused_import, unnecessary_parenthesis, prefer_null_aware_operators, omit_local_variable_types, unused_shown_name
-// @dart = 2.8
+// @dart = 2.12
 import 'dart:async';
 import 'dart:typed_data' show Uint8List, Int32List, Int64List, Float64List;
 
+import 'package:flutter/foundation.dart' show WriteBuffer, ReadBuffer;
 import 'package:flutter/services.dart';
 
 class Book {
-  String title;
+  String? title;
-  String subtitle;
+  String? subtitle;
-  String author;
+  String? author;
-  String summary;
+  String? summary;
-  String publishDate;
+  String? publishDate;
-  int pageCount;
+  int? pageCount;
-
+  Thumbnail? thumbnail;
-  // ignore: unused_element
+
   Object encode() {
-    final Map<Object, Object> pigeonMap = <Object, Object>{};
+    final Map<Object?, Object?> pigeonMap = <Object?, Object?>{};
     pigeonMap['title'] = title;
     pigeonMap['subtitle'] = subtitle;
     pigeonMap['author'] = author;
     pigeonMap['summary'] = summary;
     pigeonMap['publishDate'] = publishDate;
     pigeonMap['pageCount'] = pageCount;
+    pigeonMap['thumbnail'] = thumbnail == null ? null : thumbnail!.encode();
     return pigeonMap;
   }
 
-  // ignore: unused_element
   static Book decode(Object message) {
-    final Map<Object, Object> pigeonMap = message as Map<Object, Object>;
+    final Map<Object?, Object?> pigeonMap = message as Map<Object?, Object?>;
     return Book()
-      ..title = pigeonMap['title'] as String
+      ..title = pigeonMap['title'] as String?
-      ..subtitle = pigeonMap['subtitle'] as String
+      ..subtitle = pigeonMap['subtitle'] as String?
-      ..author = pigeonMap['author'] as String
+      ..author = pigeonMap['author'] as String?
-      ..summary = pigeonMap['summary'] as String
+      ..summary = pigeonMap['summary'] as String?
-      ..publishDate = pigeonMap['publishDate'] as String
+      ..publishDate = pigeonMap['publishDate'] as String?
-      ..pageCount = pigeonMap['pageCount'] as int;
+      ..pageCount = pigeonMap['pageCount'] as int?
+      ..thumbnail = pigeonMap['thumbnail'] != null
+          ? Thumbnail.decode(pigeonMap['thumbnail']!)
+          : null;
+  }
+}
+
+class Thumbnail {
+  String? url;
+
+  Object encode() {
+    final Map<Object?, Object?> pigeonMap = <Object?, Object?>{};
+    pigeonMap['url'] = url;
+    return pigeonMap;
+  }
+
+  static Thumbnail decode(Object message) {
+    final Map<Object?, Object?> pigeonMap = message as Map<Object?, Object?>;
+    return Thumbnail()..url = pigeonMap['url'] as String?;
+  }
+}
+
+class _FlutterBookApiCodec extends StandardMessageCodec {
+  const _FlutterBookApiCodec();
+  @override
+  void writeValue(WriteBuffer buffer, Object? value) {
+    if (value is Book) {
+      buffer.putUint8(128);
+      writeValue(buffer, value.encode());
+    } else {
+      super.writeValue(buffer, value);
+    }
+  }
+
+  @override
+  Object? readValueOfType(int type, ReadBuffer buffer) {
+    switch (type) {
+      case 128:
+        return Book.decode(readValue(buffer)!);
+
+      default:
+        return super.readValueOfType(type, buffer);
+    }
   }
 }
 
 abstract class FlutterBookApi {
+  static const MessageCodec<Object?> codec = _FlutterBookApiCodec();
+
   void displayBookDetails(Book book);
-  static void setup(FlutterBookApi api) {
+  static void setup(FlutterBookApi? api) {
     {
-      const BasicMessageChannel<Object> channel = BasicMessageChannel<Object>(
+      const BasicMessageChannel<Object?> channel = BasicMessageChannel<Object?>(
-          'dev.flutter.pigeon.FlutterBookApi.displayBookDetails',
+          'dev.flutter.pigeon.FlutterBookApi.displayBookDetails', codec);
-          StandardMessageCodec());
       if (api == null) {
         channel.setMessageHandler(null);
       } else {
-        channel.setMessageHandler((message) async {
+        channel.setMessageHandler((Object? message) async {
-          if (message == null) {
+          assert(message != null,
-            return;
+              'Argument for dev.flutter.pigeon.FlutterBookApi.displayBookDetails was null.');
-          }
+          final List<Object?> args = (message as List<Object?>?)!;
-          final Book input = Book.decode(message);
+          final Book? arg_book = args[0] as Book?;
-          api.displayBookDetails(input);
+          assert(arg_book != null,
+              'Argument for dev.flutter.pigeon.FlutterBookApi.displayBookDetails was null, expected non-null Book.');
+          api.displayBookDetails(arg_book!);
           return;
         });
       }
@@ -63,12 +109,47 @@ abstract class FlutterBookApi {
   }
 }
 
+class _HostBookApiCodec extends StandardMessageCodec {
+  const _HostBookApiCodec();
+  @override
+  void writeValue(WriteBuffer buffer, Object? value) {
+    if (value is Book) {
+      buffer.putUint8(128);
+      writeValue(buffer, value.encode());
+    } else {
+      super.writeValue(buffer, value);
+    }
+  }
+
+  @override
+  Object? readValueOfType(int type, ReadBuffer buffer) {
+    switch (type) {
+      case 128:
+        return Book.decode(readValue(buffer)!);
+
+      default:
+        return super.readValueOfType(type, buffer);
+    }
+  }
+}
+
 class HostBookApi {
+  /// Constructor for [HostBookApi].  The [binaryMessenger] named argument is
+  /// available for dependency injection.  If it is left null, the default
+  /// BinaryMessenger will be used which routes to the host platform.
+  HostBookApi({BinaryMessenger? binaryMessenger})
+      : _binaryMessenger = binaryMessenger;
+
+  final BinaryMessenger? _binaryMessenger;
+
+  static const MessageCodec<Object?> codec = _HostBookApiCodec();
+
   Future<void> cancel() async {
-    const BasicMessageChannel<Object> channel = BasicMessageChannel<Object>(
+    final BasicMessageChannel<Object?> channel = BasicMessageChannel<Object?>(
-        'dev.flutter.pigeon.HostBookApi.cancel', StandardMessageCodec());
+        'dev.flutter.pigeon.HostBookApi.cancel', codec,
-    final Map<Object, Object> replyMap =
+        binaryMessenger: _binaryMessenger);
-        await channel.send(null) as Map<Object, Object>;
+    final Map<Object?, Object?>? replyMap =
+        await channel.send(null) as Map<Object?, Object?>?;
     if (replyMap == null) {
       throw PlatformException(
         code: 'channel-error',
@@ -76,25 +157,24 @@ class HostBookApi {
         details: null,
       );
     } else if (replyMap['error'] != null) {
-      final Map<Object, Object> error =
+      final Map<Object?, Object?> error =
-          replyMap['error'] as Map<Object, Object>;
+          (replyMap['error'] as Map<Object?, Object?>?)!;
       throw PlatformException(
-        code: error['code'] as String,
+        code: (error['code'] as String?)!,
-        message: error['message'] as String,
+        message: error['message'] as String?,
         details: error['details'],
       );
     } else {
-      // noop
+      return;
     }
   }
 
-  Future<void> finishEditingBook(Book arg) async {
+  Future<void> finishEditingBook(Book arg_book) async {
-    final Object encoded = arg.encode();
+    final BasicMessageChannel<Object?> channel = BasicMessageChannel<Object?>(
-    const BasicMessageChannel<Object> channel = BasicMessageChannel<Object>(
+        'dev.flutter.pigeon.HostBookApi.finishEditingBook', codec,
-        'dev.flutter.pigeon.HostBookApi.finishEditingBook',
+        binaryMessenger: _binaryMessenger);
-        StandardMessageCodec());
+    final Map<Object?, Object?>? replyMap =
-    final Map<Object, Object> replyMap =
+        await channel.send(<Object>[arg_book]) as Map<Object?, Object?>?;
-        await channel.send(encoded) as Map<Object, Object>;
     if (replyMap == null) {
       throw PlatformException(
         code: 'channel-error',
@@ -102,15 +182,15 @@ class HostBookApi {
         details: null,
       );
     } else if (replyMap['error'] != null) {
-      final Map<Object, Object> error =
+      final Map<Object?, Object?> error =
-          replyMap['error'] as Map<Object, Object>;
+          (replyMap['error'] as Map<Object?, Object?>?)!;
       throw PlatformException(
-        code: error['code'] as String,
+        code: (error['code'] as String?)!,
-        message: error['message'] as String,
+        message: error['message'] as String?,
         details: error['details'],
       );
     } else {
-      // noop
+      return;
     }
   }
 }

add_to_app/books/flutter_module_books/pigeon/schema.dart

@@ -11,14 +11,12 @@ class Book {
   String summary;
   String publishDate;
   int pageCount;
-  // Thumbnail thumbnail;
+  Thumbnail thumbnail;
 }
 
-// TODO(gaaclarke): add this back when the https://github.com/flutter/flutter/issues/58896
+class Thumbnail {
-// crash is resolved.
+  String url;
-// class Thumbnail {
+}
-//   String url;
-// }
 
 @FlutterApi()
 abstract class FlutterBookApi {

add_to_app/books/flutter_module_books/pubspec.lock

@@ -1,20 +1,34 @@
 # Generated by pub
 # See https://dart.dev/tools/pub/glossary#lockfile
 packages:
+  _fe_analyzer_shared:
+    dependency: transitive
+    description:
+      name: _fe_analyzer_shared
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "22.0.0"
+  analyzer:
+    dependency: transitive
+    description:
+      name: analyzer
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.7.2"
   args:
     dependency: transitive
     description:
       name: args
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.6.0"
+    version: "2.2.0"
   async:
     dependency: transitive
     description:
       name: async
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.6.1"
+    version: "2.8.2"
   boolean_selector:
     dependency: transitive
     description:
@@ -22,6 +36,27 @@ packages:
       url: "https://pub.dartlang.org"
     source: hosted
     version: "2.1.0"
+  build:
+    dependency: transitive
+    description:
+      name: build
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "2.1.0"
+  built_collection:
+    dependency: transitive
+    description:
+      name: built_collection
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "5.1.1"
+  built_value:
+    dependency: transitive
+    description:
+      name: built_value
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "8.1.2"
   characters:
     dependency: transitive
     description:
@@ -35,7 +70,14 @@ packages:
       name: charcode
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.2.0"
+    version: "1.3.1"
+  cli_util:
+    dependency: transitive
+    description:
+      name: cli_util
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.3.3"
   clock:
     dependency: transitive
     description:
@@ -43,6 +85,13 @@ packages:
       url: "https://pub.dartlang.org"
     source: hosted
     version: "1.1.0"
+  code_builder:
+    dependency: transitive
+    description:
+      name: code_builder
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "4.1.0"
   collection:
     dependency: transitive
     description:
@@ -50,6 +99,27 @@ packages:
       url: "https://pub.dartlang.org"
     source: hosted
     version: "1.15.0"
+  convert:
+    dependency: transitive
+    description:
+      name: convert
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "3.0.1"
+  crypto:
+    dependency: transitive
+    description:
+      name: crypto
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "3.0.1"
+  dart_style:
+    dependency: transitive
+    description:
+      name: dart_style
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "2.0.3"
   fake_async:
     dependency: transitive
     description:
@@ -57,6 +127,20 @@ packages:
       url: "https://pub.dartlang.org"
     source: hosted
     version: "1.2.0"
+  file:
+    dependency: transitive
+    description:
+      name: file
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "6.1.2"
+  fixnum:
+    dependency: transitive
+    description:
+      name: fixnum
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.0.0"
   flutter:
     dependency: "direct main"
     description: flutter
@@ -74,6 +158,13 @@ packages:
     description: flutter
     source: sdk
     version: "0.0.0"
+  glob:
+    dependency: transitive
+    description:
+      name: glob
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "2.0.1"
   lints:
     dependency: transitive
     description:
@@ -81,27 +172,41 @@ packages:
       url: "https://pub.dartlang.org"
     source: hosted
     version: "1.0.1"
+  logging:
+    dependency: transitive
+    description:
+      name: logging
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.0.1"
   matcher:
     dependency: transitive
     description:
       name: matcher
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "0.12.10"
+    version: "0.12.11"
   meta:
     dependency: transitive
     description:
       name: meta
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.3.0"
+    version: "1.7.0"
   mockito:
     dependency: "direct dev"
     description:
       name: mockito
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "4.1.1+1"
+    version: "5.0.15"
+  package_config:
+    dependency: transitive
+    description:
+      name: package_config
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "2.0.0"
   path:
     dependency: transitive
     description:
@@ -109,18 +214,39 @@ packages:
       url: "https://pub.dartlang.org"
     source: hosted
     version: "1.8.0"
+  pedantic:
+    dependency: transitive
+    description:
+      name: pedantic
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.11.1"
   pigeon:
     dependency: "direct dev"
     description:
       name: pigeon
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "0.1.23"
+    version: "1.0.1"
+  pub_semver:
+    dependency: transitive
+    description:
+      name: pub_semver
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "2.0.0"
   sky_engine:
     dependency: transitive
     description: flutter
     source: sdk
     version: "0.0.99"
+  source_gen:
+    dependency: transitive
+    description:
+      name: source_gen
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.0.3"
   source_span:
     dependency: transitive
     description:
@@ -162,7 +288,7 @@ packages:
       name: test_api
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "0.3.0"
+    version: "0.4.3"
   typed_data:
     dependency: transitive
     description:
@@ -177,5 +303,19 @@ packages:
       url: "https://pub.dartlang.org"
     source: hosted
     version: "2.1.0"
+  watcher:
+    dependency: transitive
+    description:
+      name: watcher
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.0.0"
+  yaml:
+    dependency: transitive
+    description:
+      name: yaml
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "3.1.0"
 sdks:
   dart: ">=2.12.0 <3.0.0"

add_to_app/books/flutter_module_books/pubspec.yaml

@@ -13,8 +13,8 @@ dependencies:
     sdk: flutter
 
 dev_dependencies:
-  pigeon: ^0.1.0
+  pigeon: ^1.0.0
-  mockito: ^4.1.1
+  mockito: ^5.0.0
   flutter_test:
     sdk: flutter
   flutter_lints: ^1.0.0

add_to_app/books/ios_books/IosBooks/ViewController.swift

@@ -103,7 +103,7 @@ class ViewController: UITableViewController, BKHostBookApi {
     let flutterViewController = FlutterViewController.init(
       engine: appDelegate.engine, nibName: nil, bundle: nil)
     self.editingIndex = index
-    api.displayBookDetails(self.books[index]) { (error) in
+    api.displayBookDetailsBook(self.books[index]) { (error) in
       if let error = error {
         print(error)
       }
@@ -114,7 +114,7 @@ class ViewController: UITableViewController, BKHostBookApi {
   /**
    Called by Pigeon when the FlutterViewController is dismissed without accepting any edits.
    */
-  func cancel(_ error: AutoreleasingUnsafeMutablePointer<FlutterError?>) {
+  func cancelWithError(_ error: AutoreleasingUnsafeMutablePointer<FlutterError?>) {
     self.editingIndex = -1
     self.dismiss(animated: true, completion: nil)
   }
@@ -122,7 +122,7 @@ class ViewController: UITableViewController, BKHostBookApi {
   /**
    Called by Pigeon when edits to the book are accepted in the FlutterViewController.
    */
-  func finishEditing(_ input: BKBook, error: AutoreleasingUnsafeMutablePointer<FlutterError?>) {
+  func finishEditingBook(_ input: BKBook, error: AutoreleasingUnsafeMutablePointer<FlutterError?>) {
     self.books[editingIndex] = input
     self.tableView.reloadData()
     self.editingIndex = -1

add_to_app/books/ios_books/IosBooks/api.h

@@ -1,13 +1,15 @@
-// Autogenerated from Pigeon (v0.1.17), do not edit directly.
+// Autogenerated from Pigeon (v1.0.1), do not edit directly.
 // See also: https://pub.dev/packages/pigeon
 #import <Foundation/Foundation.h>
 @protocol FlutterBinaryMessenger;
+@protocol FlutterMessageCodec;
 @class FlutterError;
 @class FlutterStandardTypedData;
 
 NS_ASSUME_NONNULL_BEGIN
 
 @class BKBook;
+@class BKThumbnail;
 
 @interface BKBook : NSObject
 @property(nonatomic, copy, nullable) NSString *title;
@@ -16,17 +18,32 @@ NS_ASSUME_NONNULL_BEGIN
 @property(nonatomic, copy, nullable) NSString *summary;
 @property(nonatomic, copy, nullable) NSString *publishDate;
 @property(nonatomic, strong, nullable) NSNumber *pageCount;
+@property(nonatomic, strong, nullable) BKThumbnail *thumbnail;
 @end
 
+@interface BKThumbnail : NSObject
+@property(nonatomic, copy, nullable) NSString *url;
+@end
+
+/// The codec used by BKFlutterBookApi.
+NSObject<FlutterMessageCodec> *BKFlutterBookApiGetCodec(void);
+
 @interface BKFlutterBookApi : NSObject
-- (instancetype)initWithBinaryMessenger:(id<FlutterBinaryMessenger>)binaryMessenger;
+- (instancetype)initWithBinaryMessenger:
-- (void)displayBookDetails:(BKBook*)input completion:(void(^)(NSError* _Nullable))completion;
+    (id<FlutterBinaryMessenger>)binaryMessenger;
+- (void)displayBookDetailsBook:(BKBook *)book
+                    completion:(void (^)(NSError *_Nullable))completion;
 @end
+/// The codec used by BKHostBookApi.
+NSObject<FlutterMessageCodec> *BKHostBookApiGetCodec(void);
+
 @protocol BKHostBookApi
--(void)cancel:(FlutterError *_Nullable *_Nonnull)error;
+- (void)cancelWithError:(FlutterError *_Nullable *_Nonnull)error;
--(void)finishEditingBook:(BKBook*)input error:(FlutterError *_Nullable *_Nonnull)error;
+- (void)finishEditingBookBook:(BKBook *)book
+                        error:(FlutterError *_Nullable *_Nonnull)error;
 @end
 
-extern void BKHostBookApiSetup(id<FlutterBinaryMessenger> binaryMessenger, id<BKHostBookApi> _Nullable api);
+extern void BKHostBookApiSetup(id<FlutterBinaryMessenger> binaryMessenger,
+                               NSObject<BKHostBookApi> *_Nullable api);
 
 NS_ASSUME_NONNULL_END

add_to_app/books/ios_books/IosBooks/api.m

@@ -1,4 +1,4 @@
-// Autogenerated from Pigeon (v0.1.17), do not edit directly.
+// Autogenerated from Pigeon (v1.0.1), do not edit directly.
 // See also: https://pub.dev/packages/pigeon
 #import "api.h"
 #import <Flutter/Flutter.h>
@@ -7,25 +7,30 @@
 #error File requires ARC to be enabled.
 #endif
 
-static NSDictionary* wrapResult(NSDictionary *result, FlutterError *error) {
+static NSDictionary<NSString *, id> *wrapResult(id result,
+                                                FlutterError *error) {
   NSDictionary *errorDict = (NSDictionary *)[NSNull null];
   if (error) {
-    errorDict = [NSDictionary dictionaryWithObjectsAndKeys:
+    errorDict = @{
-        (error.code ? error.code : [NSNull null]), @"code",
+      @"code" : (error.code ? error.code : [NSNull null]),
-        (error.message ? error.message : [NSNull null]), @"message",
+      @"message" : (error.message ? error.message : [NSNull null]),
-        (error.details ? error.details : [NSNull null]), @"details",
+      @"details" : (error.details ? error.details : [NSNull null]),
-        nil];
+    };
   }
-  return [NSDictionary dictionaryWithObjectsAndKeys:
+  return @{
-      (result ? result : [NSNull null]), @"result",
+    @"result" : (result ? result : [NSNull null]),
-      errorDict, @"error",
+    @"error" : errorDict,
-      nil];
+  };
 }
 
 @interface BKBook ()
 + (BKBook *)fromMap:(NSDictionary *)dict;
 - (NSDictionary *)toMap;
 @end
+@interface BKThumbnail ()
++ (BKThumbnail *)fromMap:(NSDictionary *)dict;
+- (NSDictionary *)toMap;
+@end
 
 @implementation BKBook
 + (BKBook *)fromMap:(NSDictionary *)dict {
@@ -54,68 +59,210 @@ static NSDictionary* wrapResult(NSDictionary *result, FlutterError *error) {
   if ((NSNull *)result.pageCount == [NSNull null]) {
     result.pageCount = nil;
   }
+  result.thumbnail = [BKThumbnail fromMap:dict[@"thumbnail"]];
+  if ((NSNull *)result.thumbnail == [NSNull null]) {
+    result.thumbnail = nil;
+  }
+  return result;
+}
+- (NSDictionary *)toMap {
+  return [NSDictionary
+      dictionaryWithObjectsAndKeys:
+          (self.title ? self.title : [NSNull null]), @"title",
+          (self.subtitle ? self.subtitle : [NSNull null]), @"subtitle",
+          (self.author ? self.author : [NSNull null]), @"author",
+          (self.summary ? self.summary : [NSNull null]), @"summary",
+          (self.publishDate ? self.publishDate : [NSNull null]), @"publishDate",
+          (self.pageCount ? self.pageCount : [NSNull null]), @"pageCount",
+          (self.thumbnail ? [self.thumbnail toMap] : [NSNull null]),
+          @"thumbnail", nil];
+}
+@end
+
+@implementation BKThumbnail
++ (BKThumbnail *)fromMap:(NSDictionary *)dict {
+  BKThumbnail *result = [[BKThumbnail alloc] init];
+  result.url = dict[@"url"];
+  if ((NSNull *)result.url == [NSNull null]) {
+    result.url = nil;
+  }
   return result;
 }
 - (NSDictionary *)toMap {
-  return [NSDictionary dictionaryWithObjectsAndKeys:(self.title ? self.title : [NSNull null]), @"title", (self.subtitle ? self.subtitle : [NSNull null]), @"subtitle", (self.author ? self.author : [NSNull null]), @"author", (self.summary ? self.summary : [NSNull null]), @"summary", (self.publishDate ? self.publishDate : [NSNull null]), @"publishDate", (self.pageCount ? self.pageCount : [NSNull null]), @"pageCount", nil];
+  return [NSDictionary
+      dictionaryWithObjectsAndKeys:(self.url ? self.url : [NSNull null]),
+                                   @"url", nil];
+}
+@end
+
+@interface BKFlutterBookApiCodecReader : FlutterStandardReader
+@end
+@implementation BKFlutterBookApiCodecReader
+- (nullable id)readValueOfType:(UInt8)type {
+  switch (type) {
+  case 128:
+    return [BKBook fromMap:[self readValue]];
+
+  default:
+    return [super readValueOfType:type];
+  }
+}
+@end
+
+@interface BKFlutterBookApiCodecWriter : FlutterStandardWriter
+@end
+@implementation BKFlutterBookApiCodecWriter
+- (void)writeValue:(id)value {
+  if ([value isKindOfClass:[BKBook class]]) {
+    [self writeByte:128];
+    [self writeValue:[value toMap]];
+  } else {
+    [super writeValue:value];
+  }
+}
+@end
+
+@interface BKFlutterBookApiCodecReaderWriter : FlutterStandardReaderWriter
+@end
+@implementation BKFlutterBookApiCodecReaderWriter
+- (FlutterStandardWriter *)writerWithData:(NSMutableData *)data {
+  return [[BKFlutterBookApiCodecWriter alloc] initWithData:data];
+}
+- (FlutterStandardReader *)readerWithData:(NSData *)data {
+  return [[BKFlutterBookApiCodecReader alloc] initWithData:data];
 }
 @end
 
+NSObject<FlutterMessageCodec> *BKFlutterBookApiGetCodec() {
+  static dispatch_once_t s_pred = 0;
+  static FlutterStandardMessageCodec *s_sharedObject = nil;
+  dispatch_once(&s_pred, ^{
+    BKFlutterBookApiCodecReaderWriter *readerWriter =
+        [[BKFlutterBookApiCodecReaderWriter alloc] init];
+    s_sharedObject =
+        [FlutterStandardMessageCodec codecWithReaderWriter:readerWriter];
+  });
+  return s_sharedObject;
+}
+
 @interface BKFlutterBookApi ()
 @property(nonatomic, strong) NSObject<FlutterBinaryMessenger> *binaryMessenger;
 @end
 
 @implementation BKFlutterBookApi
-- (instancetype)initWithBinaryMessenger:(NSObject<FlutterBinaryMessenger>*)binaryMessenger {
+- (instancetype)initWithBinaryMessenger:
+    (NSObject<FlutterBinaryMessenger> *)binaryMessenger {
   self = [super init];
   if (self) {
-    self.binaryMessenger = binaryMessenger;
+    _binaryMessenger = binaryMessenger;
   }
   return self;
 }
 
-- (void)displayBookDetails:(BKBook*)input completion:(void(^)(NSError* _Nullable))completion {
+- (void)displayBookDetailsBook:(BKBook *)arg_book
-  FlutterBasicMessageChannel *channel =
+                    completion:(void (^)(NSError *_Nullable))completion {
-    [FlutterBasicMessageChannel
+  FlutterBasicMessageChannel *channel = [FlutterBasicMessageChannel
-      messageChannelWithName:@"dev.flutter.pigeon.FlutterBookApi.displayBookDetails"
+      messageChannelWithName:
-      binaryMessenger:self.binaryMessenger];
+          @"dev.flutter.pigeon.FlutterBookApi.displayBookDetails"
-  NSDictionary* inputMap = [input toMap];
+             binaryMessenger:self.binaryMessenger
-  [channel sendMessage:inputMap reply:^(id reply) {
+                       codec:BKFlutterBookApiGetCodec()];
+  [channel sendMessage:@[ arg_book ]
+                 reply:^(id reply) {
                    completion(nil);
                  }];
 }
 @end
-void BKHostBookApiSetup(id<FlutterBinaryMessenger> binaryMessenger, id<BKHostBookApi> api) {
+@interface BKHostBookApiCodecReader : FlutterStandardReader
+@end
+@implementation BKHostBookApiCodecReader
+- (nullable id)readValueOfType:(UInt8)type {
+  switch (type) {
+  case 128:
+    return [BKBook fromMap:[self readValue]];
+
+  default:
+    return [super readValueOfType:type];
+  }
+}
+@end
+
+@interface BKHostBookApiCodecWriter : FlutterStandardWriter
+@end
+@implementation BKHostBookApiCodecWriter
+- (void)writeValue:(id)value {
+  if ([value isKindOfClass:[BKBook class]]) {
+    [self writeByte:128];
+    [self writeValue:[value toMap]];
+  } else {
+    [super writeValue:value];
+  }
+}
+@end
+
+@interface BKHostBookApiCodecReaderWriter : FlutterStandardReaderWriter
+@end
+@implementation BKHostBookApiCodecReaderWriter
+- (FlutterStandardWriter *)writerWithData:(NSMutableData *)data {
+  return [[BKHostBookApiCodecWriter alloc] initWithData:data];
+}
+- (FlutterStandardReader *)readerWithData:(NSData *)data {
+  return [[BKHostBookApiCodecReader alloc] initWithData:data];
+}
+@end
+
+NSObject<FlutterMessageCodec> *BKHostBookApiGetCodec() {
+  static dispatch_once_t s_pred = 0;
+  static FlutterStandardMessageCodec *s_sharedObject = nil;
+  dispatch_once(&s_pred, ^{
+    BKHostBookApiCodecReaderWriter *readerWriter =
+        [[BKHostBookApiCodecReaderWriter alloc] init];
+    s_sharedObject =
+        [FlutterStandardMessageCodec codecWithReaderWriter:readerWriter];
+  });
+  return s_sharedObject;
+}
+
+void BKHostBookApiSetup(id<FlutterBinaryMessenger> binaryMessenger,
+                        NSObject<BKHostBookApi> *api) {
   {
-    FlutterBasicMessageChannel *channel =
+    FlutterBasicMessageChannel *channel = [FlutterBasicMessageChannel
-      [FlutterBasicMessageChannel
         messageChannelWithName:@"dev.flutter.pigeon.HostBookApi.cancel"
-        binaryMessenger:binaryMessenger];
+               binaryMessenger:binaryMessenger
+                         codec:BKHostBookApiGetCodec()];
     if (api) {
-      [channel setMessageHandler:^(id _Nullable message, FlutterReply callback) {
+      NSCAssert(
+          [api respondsToSelector:@selector(cancelWithError:)],
+          @"BKHostBookApi api doesn't respond to @selector(cancelWithError:)");
+      [channel
+          setMessageHandler:^(id _Nullable message, FlutterReply callback) {
             FlutterError *error;
-        [api cancel:&error];
+            [api cancelWithError:&error];
             callback(wrapResult(nil, error));
           }];
-    }
+    } else {
-    else {
       [channel setMessageHandler:nil];
     }
   }
   {
-    FlutterBasicMessageChannel *channel =
+    FlutterBasicMessageChannel *channel = [FlutterBasicMessageChannel
-      [FlutterBasicMessageChannel
+        messageChannelWithName:
-        messageChannelWithName:@"dev.flutter.pigeon.HostBookApi.finishEditingBook"
+            @"dev.flutter.pigeon.HostBookApi.finishEditingBook"
-        binaryMessenger:binaryMessenger];
+               binaryMessenger:binaryMessenger
+                         codec:BKHostBookApiGetCodec()];
     if (api) {
-      [channel setMessageHandler:^(id _Nullable message, FlutterReply callback) {
+      NSCAssert([api respondsToSelector:@selector(finishEditingBookBook:
+                                                                  error:)],
+                @"BKHostBookApi api doesn't respond to "
+                @"@selector(finishEditingBookBook:error:)");
+      [channel
+          setMessageHandler:^(id _Nullable message, FlutterReply callback) {
+            NSArray *args = message;
+            BKBook *arg_book = args[0];
             FlutterError *error;
-        BKBook *input = [BKBook fromMap:message];
+            [api finishEditingBookBook:arg_book error:&error];
-        [api finishEditingBook:input error:&error];
             callback(wrapResult(nil, error));
           }];
-    }
+    } else {
-    else {
       [channel setMessageHandler:nil];
     }
   }

add_to_app/books/ios_books/Podfile.lock

@@ -19,7 +19,7 @@ EXTERNAL SOURCES:
     :path: "../flutter_module_books/.ios/Flutter/FlutterPluginRegistrant"
 
 SPEC CHECKSUMS:
-  Flutter: ac41d61a47ae5bf8195a5598d2d63754888ec0d5
+  Flutter: bdfa2e8fe0e2880a2c6a58a0b1a8675c262a07af
   flutter_module_books: 537fdde264c187fc97299f730dd35974055cac20
   FlutterPluginRegistrant: 2afd5ea46d3a949472c9b7da6462d8fbf7d8b16e