multi_image_picker 2.1.22

Flutter plugin that allows you to display multi image picker on iOS and Android.

example/lib/main.dart

import 'package:flutter/material.dart';
import 'dart:async';

import 'package:flutter/services.dart';
import 'package:multi_image_picker/asset.dart';
import 'package:multi_image_picker/multi_image_picker.dart';
import 'asset_view.dart';

void main() => runApp(new MyApp());

class MyApp extends StatefulWidget {
  @override
  _MyAppState createState() => new _MyAppState();
}

class _MyAppState extends State<MyApp> {
  List<Asset> images = List<Asset>();
  String _error;

  @override
  void initState() {
    super.initState();
  }

  Widget buildGridView() {
    return GridView.count(
      crossAxisCount: 3,
      children: List.generate(images.length, (index) {
        return AssetView(index, images[index]);
      }),
    );
  }

  Future<void> loadAssets() async {
    setState(() {
      images = List<Asset>();
    });

    List resultList;
    String error;

    try {
      resultList = await MultiImagePicker.pickImages(
        maxImages: 300,
      );
    } on PlatformException catch (e) {
      error = e.message;
    }

    // If the widget was removed from the tree while the asynchronous platform
    // message was in flight, we want to discard the reply rather than calling
    // setState to update our non-existent appearance.
    if (!mounted) return;

    setState(() {
      images = resultList;
      if (error == null) _error = 'No Error Dectected';
    });
  }

  @override
  Widget build(BuildContext context) {
    return new MaterialApp(
      home: new Scaffold(
        appBar: new AppBar(
          title: const Text('Plugin example app'),
        ),
        body: Column(
          children: <Widget>[
            Center(child: Text('Error: $_error')),
            RaisedButton(
              child: Text("Pick images"),
              onPressed: loadAssets,
            ),
            Expanded(
              child: buildGridView(),
            )
          ],
        ),
      ),
    );
  }
}