dart_gov_fbi 0.1.0

This SDK provides easy access to the FBI's public APIs. This allows you to easily access the FBI's data on wanted criminals, missing persons, and more, with Dart.

example/lib/main.dart

import 'dart:math';

import 'package:dart_gov_fbi/dart_gov_fbi.dart';

import 'package:flutter/material.dart';

void main() {
  runApp(const MyApp());
}

class MyApp extends StatelessWidget {
  const MyApp({super.key});

  @override
  Widget build(BuildContext context) {
    return const MaterialApp(
      home: MyHomePage(),
    );
  }
}

class MyHomePage extends StatefulWidget {
  const MyHomePage({super.key});

  @override
  State<MyHomePage> createState() => _MyHomePageState();
}

class _MyHomePageState extends State<MyHomePage> {
  /// The future that fetches the wanted persons.
  final Future wantedPersonsFuture = fetchWantedPersons(
    page: Random().nextInt(10) + 1,
  );

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: const Text('DartGov FBI Demo'),
        backgroundColor: Colors.black,
        actions: [
          IconButton(
            icon: const Icon(Icons.refresh),
            onPressed: () {
              setState(() {});
            },
          ),
        ],
      ),
      body: FutureBuilder(
        future: wantedPersonsFuture,
        builder: (context, snapshot) {
          if (snapshot.hasData) {
            if (snapshot.data != null &&
                snapshot.data is WantedPersonResultSet) {
              // Get the values of the future.
              final WantedPersonResultSet results =
                  snapshot.data as WantedPersonResultSet;

              if (results.wantedPersons != null &&
                  results.wantedPersons!.isNotEmpty) {
                final int max = results.wantedPersons!.length - 1;
                final int index = Random().nextInt(max + 1);

                // Get a random wanted person.
                final WantedPerson person = results.wantedPersons![index];

                return _wantedPoster(context, person);
              }
            }

            return const Text('Error!');
          } else if (snapshot.hasError) {
            return const Text('Error!');
          }
          return const CircularProgressIndicator();
        },
      ),
    );
  }

  /// The randomly generated wanted poster.
  Widget _wantedPoster(BuildContext context, WantedPerson person) {
    return SingleChildScrollView(
      child: Column(
        crossAxisAlignment: CrossAxisAlignment.center,
        children: [
          // HEADER
          _header(context),

          const SizedBox(height: 15),

          // NAME
          Text(
            person.title ?? '',
            style: Theme.of(context).textTheme.headlineSmall?.copyWith(
                  color: Colors.red,
                ),
            textAlign: TextAlign.center,
          ),

          const SizedBox(height: 15),

          // DESCRIPTION
          Text(
            person.description ?? '',
            style: Theme.of(context).textTheme.titleMedium?.copyWith(
                  color: Colors.red,
                ),
            textAlign: TextAlign.center,
          ),

          const SizedBox(height: 15),

          // IMAGE
          _image(context, person.images),

          // TABLE
          _infoBlock('DESCRIPTION', _table(context, person)),

          // REWARD
          _infoBlock('REWARD', person.rewardText),

          // REMARKS
          _infoBlock('REMARKS', person.remarks),

          // CAUTION
          _infoBlock('CAUTION', person.caution),

          // DETAILS
          _infoBlock('DETAILS', person.details),
        ],
      ),
    );
  }

  /// The red header with the FBI logo and title.
  Widget _header(BuildContext context) {
    return Container(
      color: Colors.red,
      padding: const EdgeInsets.symmetric(horizontal: 20, vertical: 10),
      child: Row(
        children: [
          // LOGO
          Image.asset(
            'assets/images/fbi_logo.png',
            height: 75,
          ),

          const SizedBox(width: 10),

          // TITLE
          Flexible(
            child: Column(
              crossAxisAlignment: CrossAxisAlignment.start,
              children: [
                Text(
                  'WANTED',
                  style: Theme.of(context).textTheme.headlineMedium?.copyWith(
                        color: Colors.white,
                      ),
                ),
                Text(
                  'BY THE FBI',
                  style: Theme.of(context).textTheme.headlineMedium?.copyWith(
                        color: Colors.white,
                      ),
                ),
              ],
            ),
          ),
        ],
      ),
    );
  }

  /// The image(s) of the wanted person.
  Widget _image(BuildContext context, List<FbiImage>? images) {
    if (images == null || images.isEmpty) {
      return const SizedBox();
    }

    List<Image> imageWidgets = [];

    for (int i = 0; i < min(3, images.length); i++) {
      imageWidgets.add(Image.network(
        images[i].thumbUrl ?? '',
        height: 125,
      ));
    }

    return Padding(
      padding: const EdgeInsets.symmetric(horizontal: 20),
      child: Row(
        mainAxisAlignment: MainAxisAlignment.spaceEvenly,
        crossAxisAlignment: CrossAxisAlignment.center,
        children: imageWidgets,
      ),
    );
  }

  /// Each information block with a title and information.
  Widget _infoBlock(String title, dynamic value) {
    Widget valueWidget;

    if (value is Widget) {
      valueWidget = value;
    } else if (value is String) {
      valueWidget = _infoBlockText(value);
    } else if (value is List<String>) {
      valueWidget = _infoBlockText(value.join(', '));
    } else {
      return const SizedBox();
    }

    return Padding(
      padding: const EdgeInsets.symmetric(horizontal: 10),
      child: Column(
        children: [
          const SizedBox(height: 5),
          Text(
            title,
            style: Theme.of(context).textTheme.titleMedium?.copyWith(
                  color: Colors.red,
                ),
          ),
          const SizedBox(height: 5),
          valueWidget,
        ],
      ),
    );
  }

  /// A helper method for [_infoBlock] to create a text widget.
  Widget _infoBlockText(String text) {
    return Text(
      text,
      style: Theme.of(context).textTheme.bodySmall,
    );
  }

  /// The table that contains information about the wanted person.
  Widget _table(BuildContext context, WantedPerson person) {
    return Column(
      crossAxisAlignment: CrossAxisAlignment.start,
      children: [
        // ALIASES
        _tableCell(
          context,
          'Aliases',
          person.aliases?.join(', ') ?? '',
        ),

        // BIRTH DATE
        _tableCell(
          context,
          'Date(s) of Birth Used',
          person.datesOfBirthUsed?.join(', ') ?? '',
          false,
        ),

        // BIRTH PLACE
        _tableCell(
          context,
          'Place of Birth',
          person.placeOfBirth ?? '',
        ),

        // HAIR
        _tableCell(
          context,
          'Hair',
          person.hairColor ?? '',
          false,
        ),

        // EYES
        _tableCell(
          context,
          'Eyes',
          person.eyeColor ?? '',
        ),

        // HEIGHT
        _tableCell(
          context,
          'Height',
          person.heightFeetText ?? '',
          false,
        ),

        // WEIGHT
        _tableCell(
          context,
          'Weight',
          person.weightLbsText ?? '',
        ),

        // SEX
        _tableCell(
          context,
          'Sex',
          person.sex ?? '',
          false,
        ),

        // RACE
        _tableCell(
          context,
          'Race',
          person.race ?? '',
        ),

        // NATIONALITY
        _tableCell(
          context,
          'Nationality',
          person.nationality ?? '',
          false,
        ),

        // SCARS AND MARKS
        _tableCell(
          context,
          'Scars and Marks',
          person.scarsAndMarks ?? '',
        ),
      ],
    );
  }

  /// A helper method for [_table] to create a table cell.
  Widget _tableCell(BuildContext context, String title, String value,
      [bool isGrey = true]) {
    return Container(
      color: isGrey ? Colors.grey[300] : null,
      padding: const EdgeInsets.symmetric(horizontal: 5, vertical: 2),
      child: Row(
        crossAxisAlignment: CrossAxisAlignment.start,
        children: [
          // TITLE
          Text(
            '$title: ',
            style: Theme.of(context).textTheme.bodySmall?.copyWith(
                  fontWeight: FontWeight.bold,
                ),
          ),

          // VALUE
          Flexible(
            child: Text(
              value,
              softWrap: true,
              style: Theme.of(context).textTheme.bodySmall,
            ),
          ),
        ],
      ),
    );
  }
}