share_plus 6.1.0

Flutter plugin for sharing content via the platform share UI, using the ACTION_SEND intent on Android and UIActivityViewController on iOS.

example/lib/main.dart

// Copyright 2019 The Flutter Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

// ignore_for_file: public_member_api_docs

import 'dart:io';

import 'package:file_selector/file_selector.dart'
    hide XFile; // hides to test if share_plus exports XFile
import 'package:flutter/material.dart';
import 'package:flutter/services.dart';
import 'package:image_picker/image_picker.dart'
    hide XFile; // hides to test if share_plus exports XFile
import 'package:share_plus/share_plus.dart';

import 'image_previews.dart';

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

class DemoApp extends StatefulWidget {
  const DemoApp({Key? key}) : super(key: key);

  @override
  DemoAppState createState() => DemoAppState();
}

class DemoAppState extends State<DemoApp> {
  String text = '';
  String subject = '';
  List<String> imageNames = [];
  List<String> imagePaths = [];

  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'Share Plus Plugin Demo',
      home: Scaffold(
          appBar: AppBar(
            title: const Text('Share Plus Plugin Demo'),
          ),
          body: SingleChildScrollView(
            child: Padding(
              padding: const EdgeInsets.all(24.0),
              child: Column(
                crossAxisAlignment: CrossAxisAlignment.start,
                children: <Widget>[
                  TextField(
                    decoration: const InputDecoration(
                      labelText: 'Share text:',
                      hintText: 'Enter some text and/or link to share',
                    ),
                    maxLines: 2,
                    onChanged: (String value) => setState(() {
                      text = value;
                    }),
                  ),
                  TextField(
                    decoration: const InputDecoration(
                      labelText: 'Share subject:',
                      hintText: 'Enter subject to share (optional)',
                    ),
                    maxLines: 2,
                    onChanged: (String value) => setState(() {
                      subject = value;
                    }),
                  ),
                  const Padding(padding: EdgeInsets.only(top: 12.0)),
                  ImagePreviews(imagePaths, onDelete: _onDeleteImage),
                  ListTile(
                    leading: const Icon(Icons.add),
                    title: const Text('Add image'),
                    onTap: () async {
                      // Using `package:image_picker` to get image from gallery.
                      if (Platform.isMacOS ||
                          Platform.isLinux ||
                          Platform.isWindows) {
                        // Using `package:file_selector` on windows, macos & Linux, since `package:image_picker` is not supported.
                        const XTypeGroup typeGroup = XTypeGroup(
                          label: 'images',
                          extensions: <String>['jpg', 'jpeg', 'png', 'gif'],
                        );
                        final file = await openFile(
                            acceptedTypeGroups: <XTypeGroup>[typeGroup]);
                        if (file != null) {
                          setState(() {
                            imagePaths.add(file.path);
                            imageNames.add(file.name);
                          });
                        }
                      } else {
                        final imagePicker = ImagePicker();
                        final pickedFile = await imagePicker.pickImage(
                          source: ImageSource.gallery,
                        );
                        if (pickedFile != null) {
                          setState(() {
                            imagePaths.add(pickedFile.path);
                            imageNames.add(pickedFile.name);
                          });
                        }
                      }
                    },
                  ),
                  const Padding(padding: EdgeInsets.only(top: 12.0)),
                  Builder(
                    builder: (BuildContext context) {
                      return ElevatedButton(
                        onPressed: text.isEmpty && imagePaths.isEmpty
                            ? null
                            : () => _onShare(context),
                        child: const Text('Share'),
                      );
                    },
                  ),
                  const Padding(padding: EdgeInsets.only(top: 12.0)),
                  Builder(
                    builder: (BuildContext context) {
                      return ElevatedButton(
                        onPressed: text.isEmpty && imagePaths.isEmpty
                            ? null
                            : () => _onShareWithResult(context),
                        child: const Text('Share With Result'),
                      );
                    },
                  ),
                  const Padding(padding: EdgeInsets.only(top: 12.0)),
                  Builder(
                    builder: (BuildContext context) {
                      return ElevatedButton(
                        onPressed: () {
                          _onShareXFileFromAssets(context);
                        },
                        child: const Text('Share XFile from Assets'),
                      );
                    },
                  ),
                ],
              ),
            ),
          )),
    );
  }

  void _onDeleteImage(int position) {
    setState(() {
      imagePaths.removeAt(position);
      imageNames.removeAt(position);
    });
  }

  void _onShare(BuildContext context) async {
    // A builder is used to retrieve the context immediately
    // surrounding the ElevatedButton.
    //
    // The context's `findRenderObject` returns the first
    // RenderObject in its descendent tree when it's not
    // a RenderObjectWidget. The ElevatedButton's RenderObject
    // has its position and size after it's built.
    final box = context.findRenderObject() as RenderBox?;

    if (imagePaths.isNotEmpty) {
      final files = <XFile>[];
      for (var i = 0; i < imagePaths.length; i++) {
        files.add(XFile(imagePaths[i], name: imageNames[i]));
      }
      await Share.shareXFiles(files,
          text: text,
          subject: subject,
          sharePositionOrigin: box!.localToGlobal(Offset.zero) & box.size);
    } else {
      await Share.share(text,
          subject: subject,
          sharePositionOrigin: box!.localToGlobal(Offset.zero) & box.size);
    }
  }

  void _onShareWithResult(BuildContext context) async {
    final box = context.findRenderObject() as RenderBox?;
    final scaffoldMessenger = ScaffoldMessenger.of(context);
    ShareResult result;
    if (imagePaths.isNotEmpty) {
      final files = <XFile>[];
      for (var i = 0; i < imagePaths.length; i++) {
        files.add(XFile(imagePaths[i], name: imageNames[i]));
      }
      result = await Share.shareXFiles(files,
          text: text,
          subject: subject,
          sharePositionOrigin: box!.localToGlobal(Offset.zero) & box.size);
    } else {
      result = await Share.shareWithResult(text,
          subject: subject,
          sharePositionOrigin: box!.localToGlobal(Offset.zero) & box.size);
    }
    scaffoldMessenger.showSnackBar(SnackBar(
      content: Text("Share result: ${result.status}"),
    ));
  }

  void _onShareXFileFromAssets(BuildContext context) async {
    final box = context.findRenderObject() as RenderBox?;
    final scaffoldMessenger = ScaffoldMessenger.of(context);
    final data = await rootBundle.load('assets/flutter_logo.png');
    final buffer = data.buffer;
    final result = await Share.shareXFiles(
      [
        XFile.fromData(
            buffer.asUint8List(data.offsetInBytes, data.lengthInBytes),
            name: 'flutter_logo.png',
            mimeType: 'image/png'),
      ],
      sharePositionOrigin: box!.localToGlobal(Offset.zero) & box.size,
    );

    scaffoldMessenger.showSnackBar(SnackBar(
      content: Text("Share result: ${result.status}"),
    ));
  }
}