cloudsolutions-atoms/lib/views/widgets/images/multi_image_picker.dart

import 'dart:io';

import 'package:file_picker/file_picker.dart';
import 'package:flutter/cupertino.dart';
import 'package:flutter/material.dart';
import 'package:fluttertoast/fluttertoast.dart';
import 'package:image_picker/image_picker.dart';
import 'package:test_sa/extensions/context_extension.dart';
import 'package:test_sa/extensions/int_extensions.dart';

import '../../../new_views/common_widgets/app_dashed_button.dart';
import 'multi_image_picker_item.dart';

class MultiFilesPicker extends StatefulWidget {
  final String label;
  final bool error;
  final List<File> files;
  final bool enabled, onlyImages;

  const MultiFilesPicker({Key key, this.files, this.label, this.error = false, this.enabled = true, this.onlyImages = false}) : super(key: key);

  @override
  State<MultiFilesPicker> createState() => _MultiFilesPickerState();
}

class _MultiFilesPickerState extends State<MultiFilesPicker> {
  @override
  Widget build(BuildContext context) {
    return Column(
      crossAxisAlignment: CrossAxisAlignment.start,
      children: [
        AppDashedButton(title: widget.label, onPressed: (widget.enabled == false) ? () {} : onFilePicker),
        16.height,
        if (widget.files?.isNotEmpty ?? false)
          Wrap(
            spacing: 8.toScreenWidth,
            children: List.generate(
              widget.files.length,
              (index) {
                File image = widget.files[index];
                return MultiFilesPickerItem(
                  file: image,
                  enabled: widget.enabled,
                  onRemoveTap: (image) {
                    if (!widget.enabled) {
                      return;
                    }
                    widget.files.remove(image);
                    setState(() {});
                  },
                );
              },
            ),
          ),
      ],
    );
  }

  fromFilePicker() async {
    FilePickerResult result = await FilePicker.platform.pickFiles(
      type: FileType.custom,
      allowMultiple: true,
      allowedExtensions: widget.onlyImages ? ['jpg', 'jpeg', 'png'] : ['jpg', 'jpeg', 'png', 'pdf', 'doc', 'docx', 'xlsx', 'pptx'],
    );
    if (result != null) {
      for (var path in result.paths) {
        widget.files.add(File(path));
      }
      setState(() {});
    }
  }

  onFilePicker() async {
    if (widget.files.length >= 5) {
      Fluttertoast.showToast(msg: context.translation.maxImagesNumberIs5);
      return;
    }
    ImageSource source = await showDialog(
      context: context,
      builder: (dialogContext) => CupertinoAlertDialog(
        actions: <Widget>[
          TextButton(
            child: Text(context.translation.pickFromCamera),
            onPressed: () {
              Navigator.of(dialogContext).pop(ImageSource.camera);
            },
          ),
          TextButton(
            child: Text(context.translation.pickFromGallery),
            onPressed: () {
              Navigator.of(dialogContext).pop(ImageSource.gallery);
            },
          ),
          TextButton(
            child: Text(context.translation.pickFromFiles),
            onPressed: () async {
              await fromFilePicker();
              Navigator.pop(context);
            },
          ),
        ],
      ),
    );
    if (source == null) return;

    final pickedFile = await ImagePicker().pickImage(source: source, imageQuality: 70, maxWidth: 800, maxHeight: 800);

    if (pickedFile != null) {
      File fileImage = File(pickedFile.path);
      if (fileImage != null) {
        widget.files.add(fileImage);
        setState(() {});
      }
    }

    setState(() {});
  }
}