Flutter: How to Upload Video in back4app

 Assalamualaikum ! I hope you are well. Now i’ll show you how to upload image in back4app.

So Lets Start !!

Step 1: At first we login back4app and will go Dashboard. If not then we must need signup. after completing login then we need “ keyApplicationId” and “keyClientKey”. And we will collect from Dashboard>App Settings>Security & Keys. There has “keyApplicationId” and “keyClientKey”. Then we will copy from these.

Step 2: Now we will write this code,

final keyApplicationId = 'i0enIS8nNDpJDT1a5BuePyUd4lNAmI1xgvsJEEJF';
final keyClientKey = 'djsvsZTGx2h8wjlqpCIDHAL49fBEFfnGhddqWWLE';
final keyParseServerUrl = 'https://parseapi.back4app.com';

Step 3: For Uploading video We will pick the video from gallery. So we will call GestureDetector().In GestureDetector we declare File pick permission,Videoplayer widget and submit button.

GestureDetector(
child: pickedFile != null
? Container(
width: 250,
height: 250,
decoration:
BoxDecoration(border: Border.all(color: Colors.deepOrange)),
child: AspectRatio(
aspectRatio: 16 / 9,
child: VideoPlayer(
VideoPlayerController.file(File(pickedFile!.path)),
),
),
)
: Container(
width: 250,
height: 250,
decoration:
BoxDecoration(border: Border.all(color: Colors.deepOrangeAccent)),
child: Center(
child: Text('Click here to pick a video from Gallery'),
),
),
onTap: () async {
final pickedVideo = await ImagePicker().getVideo(source: ImageSource.gallery);

if (pickedVideo != null) {
setState(() {
pickedFile = PickedFile(pickedVideo.path);
});
}
},
),

Step 4: Full Code here

import 'dart:io';

import 'package:flutter/material.dart';
import 'package:image_picker/image_picker.dart';
import 'package:parse_server_sdk/parse_server_sdk.dart';
import 'package:video_player/video_player.dart';

void main() async {
WidgetsFlutterBinding.ensureInitialized();

final keyApplicationId = 'i0enIS8nNDpJDT1a5BuePyUd4lNAmI1xgvsJEEJF';
final keyClientKey = 'djsvsZTGx2h8wjlqpCIDHAL49fBEFfnGhddqWWLE';

final keyParseServerUrl = 'https://parseapi.back4app.com';

await Parse().initialize(keyApplicationId, keyParseServerUrl,
clientKey: keyClientKey, debug: true);

runApp(MaterialApp(
title: 'Flutter - Storage File',
debugShowCheckedModeBanner: false,
home: SavePage(),
));
}

class SavePage extends StatefulWidget {
@override
_SavePageState createState() => _SavePageState();
}

class _SavePageState extends State<SavePage> {
PickedFile? pickedFile;
bool isLoading = false;

@override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(
title: Text('Upload Video'),
),
body: Padding(
padding: const EdgeInsets.all(12.0),
child: Column(
crossAxisAlignment: CrossAxisAlignment.stretch,
children: [
SizedBox(height: 16),
GestureDetector(
child: pickedFile != null
? Container(
width: 250,
height: 250,
decoration:
BoxDecoration(border: Border.all(color: Colors.deepOrange)),
child: AspectRatio(
aspectRatio: 16 / 9,
child: VideoPlayer(
VideoPlayerController.file(File(pickedFile!.path)),
),
),
)
: Container(
width: 250,
height: 250,
decoration:
BoxDecoration(border: Border.all(color: Colors.deepOrangeAccent)),
child: Center(
child: Text('Click here to pick a video from Gallery'),
),
),
onTap: () async {
final pickedVideo = await ImagePicker().getVideo(source: ImageSource.gallery);

if (pickedVideo != null) {
setState(() {
pickedFile = PickedFile(pickedVideo.path);
});
}
},
),
SizedBox(height: 16),
Container(
height: 50,
child: ElevatedButton(
child: Text('Upload Video'),
style: ElevatedButton.styleFrom(primary: Colors.green),
onPressed: isLoading || pickedFile == null
? null
: () async {
setState(() {
isLoading = true;
});

final parseFile = ParseFile(File(pickedFile!.path));
await parseFile.save();

final videoObject = ParseObject('Video')
..set('file', parseFile);
await videoObject.save();

setState(() {
isLoading = false;
pickedFile = null;
});

ScaffoldMessenger.of(context)
..removeCurrentSnackBar()
..showSnackBar(SnackBar(
content: Text(
'Video uploaded successfully!',
style: TextStyle(
color: Colors.white,
),
),
duration: Duration(seconds: 3),
backgroundColor: Colors.orange,
));
},
))
],
),
),
);
}
}

Step 5: Finally Output is to noted below —

N.B: This Post Copy from medium and this contents owner Riad Rayhan.

#flutter #app