Getting started with platform adapters

import 'package:nutrient_flutter_android/src/android_platform_adapter.dart';
import 'package:nutrient_flutter_android/src/bindings/nutrient_android_sdk_bindings.dart'
    as android;

class MyAndroidAdapter extends AndroidAdapter {
  @override
  Future<void> configureFragment(
    NutrientViewHandle handle,
    android.PdfUiFragmentBuilder builder,
    android.Context context,
  ) async {
    await super.configureFragment(handle, builder, context);

    final config =
        android.PdfActivityConfiguration$Builder(context)
            .layoutMode(android.PageLayoutMode.SINGLE)
            .scrollDirection(
                android.PageScrollDirection.VERTICAL)
            .fitMode(android.PageFitMode.FIT_TO_WIDTH)
            .searchEnabled(true)
            .annotationEditingEnabled(true)
            .build();

    builder.configuration(config);
  }

  @override
  Future<void> onFragmentAttached(
    android.PdfUiFragment fragment,
    android.Context context,
  ) async {}

  @override
  Future<void> onPdfFragmentReady(
      android.PdfFragment pdfFragment) async {}

  @override
  Future<void> onFragmentDetached() async {}
}

import 'package:nutrient_flutter_ios/src/ios_platform_adapter.dart';
import 'package:nutrient_flutter_ios/src/bindings/nutrient_ios_bindings.dart'
    as ios;

class MyIOSAdapter extends IOSAdapter {
  @override
  void configureView(
    NutrientViewHandle handle,
    ios.PSPDFConfigurationBuilder builder,
  ) {
    super.configureView(handle, builder);

    builder.pageMode =
        ios.PSPDFPageMode.PSPDFPageModeSingle;
    builder.scrollDirection = ios.PSPDFScrollDirection
        .PSPDFScrollDirectionVertical;
    builder.pageTransition = ios.PSPDFPageTransition
        .PSPDFPageTransitionScrollContinuous;
  }

  @override
  Future<void> onViewControllerReady(
      ios.PSPDFViewController viewController) async {}

  @override
  Future<void> onViewControllerDetached() async {}
}

import 'package:nutrient_flutter_web/nutrient_flutter_web.dart';

class MyWebAdapter extends NutrientWebAdapter {
  @override
  Future<void> configureLoad(
    NutrientViewHandle handle,
    Map<String, dynamic> config,
  ) async {
    await super.configureLoad(handle, config);

    config['layoutMode'] = 'SINGLE';
    config['scrollMode'] = 'CONTINUOUS';
    config['spreadFitting'] = 'FIT_TO_VIEWPORT';
    config['theme'] = 'AUTO';
    config['toolbarPlacement'] = 'TOP';
  }

  @override
  Future<void> onInstanceLoaded(
      NutrientWebInstance instance) async {
    await super.onInstanceLoaded(instance);
  }

  @override
  Future<void> dispose() async {
    await super.dispose();
  }
}