Can I receive a share intent without opening my Flutter app? - flutter

Question

I'm creating an app in Flutter to store any type of media, imagem, video, pdfs, etc. And I want to be able to receive share intents from other apps in the easiest way possible for the user.
So, my idea is to be able to simply receive the media without needing to open the app for the user to input something, they should simply select my app to receive the media and continue using the "source" app. Is that possible in flutter?

Answer 1

this should work very well based on your requirement, receive_sharing_intent, just following the setup for android & ios and try the example:
import 'package:flutter/material.dart';
import 'dart:async';
import 'package:receive_sharing_intent/receive_sharing_intent.dart';
void main() => runApp(MyApp());
class MyApp extends StatefulWidget {
#override
_MyAppState createState() => _MyAppState();
}
class _MyAppState extends State<MyApp> {
StreamSubscription _intentDataStreamSubscription;
List<SharedMediaFile> _sharedFiles;
String _sharedText;
#override
void initState() {
super.initState();
// For sharing images coming from outside the app while the app is in the memory
_intentDataStreamSubscription =
ReceiveSharingIntent.getMediaStream().listen((List<SharedMediaFile> value) {
setState(() {
print("Shared:" + (_sharedFiles?.map((f)=> f.path)?.join(",") ?? ""));
_sharedFiles = value;
});
}, onError: (err) {
print("getIntentDataStream error: $err");
});
// For sharing images coming from outside the app while the app is closed
ReceiveSharingIntent.getInitialMedia().then((List<SharedMediaFile> value) {
setState(() {
_sharedFiles = value;
});
});
// For sharing or opening urls/text coming from outside the app while the app is in the memory
_intentDataStreamSubscription =
ReceiveSharingIntent.getTextStream().listen((String value) {
setState(() {
_sharedText = value;
});
}, onError: (err) {
print("getLinkStream error: $err");
});
// For sharing or opening urls/text coming from outside the app while the app is closed
ReceiveSharingIntent.getInitialText().then((String value) {
setState(() {
_sharedText = value;
});
});
}
#override
void dispose() {
_intentDataStreamSubscription.cancel();
super.dispose();
}
#override
Widget build(BuildContext context) {
const textStyleBold = const TextStyle(fontWeight: FontWeight.bold);
return MaterialApp(
home: Scaffold(
appBar: AppBar(
title: const Text('Plugin example app'),
),
body: Center(
child: Column(
children: <Widget>[
Text("Shared files:", style: textStyleBold),
Text(_sharedFiles?.map((f)=> f.path)?.join(",") ?? ""),
SizedBox(height: 100),
Text("Shared urls/text:", style: textStyleBold),
Text(_sharedText ?? "")
],
),
),
),
);
}
}

Answer 2

Using Receive Sharing intent package, you can receive text & media files in closed as well as opened application.
Below code snippet to receive intent in closed application,
// For sharing images coming from outside the app while the app is closed
ReceiveSharingIntent.getInitialMedia().then((List<SharedMediaFile> value) {
setState(() {
_sharedFiles = value;
});
});
You can go through this link for further understanding on how to receive intent in already opened & closed application.