flutter image picker not working and crashing app without error on debug

Question

I'm currently using these versions: flutter : 2.16.0 image_picker : ^0.8.4+7

The image picker is not working. After running the app, when I click on the button to activate the pickImage function, running suddenly stops and the app crashes and stops. On debug, the only message I get is:

Lost connection to device.

Here's the code:

import 'dart:io';
import 'dart:math';

import 'package:flutter/material.dart';
import 'package:cloud_firestore/cloud_firestore.dart';
import 'package:hipocampus_editors/widgets/textformfield_widget.dart';
import 'package:image_picker/image_picker.dart';

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

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

class _AddSystemPageState extends State<AddSystemPage> {
  final _formKey = GlobalKey<FormState>();
File? image1;

  Future pickImage() async{
    
final image = await ImagePicker().pickImage(source: ImageSource.gallery);
if (image == null)  return;
final imageTemporary = File(image.path);
setState(() {
  image1 = imageTemporary;
});

    } 
  @override
  Widget build(BuildContext context) {
    return GestureDetector(
      onTap: () => FocusManager.instance.primaryFocus?.unfocus(),
      child: Scaffold(
        appBar: AppBar(title: const Text('System',),),
        
        body: SafeArea(
          child: Padding(
            padding: const EdgeInsets.symmetric(horizontal: 5),
            child: Form(
              key: _formKey,
              child: Container(
                width: MediaQuery.of(context).size.width,
                padding: const EdgeInsets.symmetric(horizontal: 10),
                child: SingleChildScrollView(
                    child: Column(
                  children: [
                    
                    ElevatedButton(onPressed: (){
                      pickImage();
                                          }, child: Text('Select image'))
                    
                  ],
                )),
              ),
            ),
          ),
        ),
      ),
    );
    }
    }

are you added "android:requestLegacyExternalStorage="true" " in manifest.xml?? — Rohit Chaurasiya
– Rohit Chaurasiya, Commented Feb 10, 2022 at 5:10
@RohitChaurasiya Have you resolved this issue I'm also having this issue in android 12 — Sumit Kumawat
– Sumit Kumawat, Commented Nov 25, 2022 at 13:51

Mateus Neves · Accepted Answer · 2022-02-10 11:48:09Z

18

Add this to iOS>runner>Info.plist

<key>NSPhotoLibraryUsageDescription</key>
<string>Allow access to photo library</string>

answered Feb 10, 2022 at 11:48

Mateus Neves

7622 gold badges7 silver badges21 bronze badges

Sign up to request clarification or add additional context in comments.

1 Comment

Macdonald Over a year ago

I also added this <key>NSCameraUsageDescription</key> <string>Need to access camera in order to get image.</string>

liam spiegel · Accepted Answer · 2022-02-10 13:30:22Z

4

Please check if you have registered the ImagePicker Correctly.

and if you have registered ImagePicker correctly then put a try and catch blog in the pick Image Function to get more debug information:

Future pickImage() async{
    
  try{
    final image = await ImagePicker().pickImage(source: ImageSource.gallery);
    if (image == null)  return;
    final imageTemporary = File(image.path);
    setState(() {
      image1 = imageTemporary;
    });
  } catch(error) {
    print("error: $error");
  }

}

answered Feb 10, 2022 at 13:30

liam spiegel

5486 silver badges21 bronze badges

Comments

Akanksha Singh · Accepted Answer · 2022-03-12 06:20:03Z

1

This happened when I was trying with iOS simulator. You need to add these keys in /ios/Runner/Info.plist:

NSPhotoLibraryUsageDescription NSCameraUsageDescription

Also try to test your app in physical device. And if you working for Android version then no configuration changes are required and you can refer to this video: https://youtu.be/s0YqbEJcRtE

answered Mar 12, 2022 at 6:20

Akanksha Singh

111 bronze badge

1 Comment

Vishwajeet Singh Shekhawat Over a year ago

you can use camera: ^0.9.5 its a better option

STEPHY MATHEW · Accepted Answer · 2025-06-19 07:04:23Z

0

he image_picker package causes the app to crash when using the camera, but picking from the gallery works fine. So, I want to use the camera package for capturing photos and use image_picker only for selecting images from the gallery

answered Jun 19 at 7:04

STEPHY MATHEW

1

3 Comments

Community Jun 19 at 7:14

As it’s currently written, your answer is unclear. Please edit to add additional details that will help others understand how this addresses the question asked. You can find more information on how to write good answers in the help center.

Nanigashi Jun 19 at 7:49

Is this answer a new question? If you can write a clear question, there is no reputation requirement to ask it.

Ben Jun 19 at 10:24

If you have a new question, please ask it by clicking the Ask Question button. Include a link to this question if it helps provide context. - From Review

Torsten Becker · Accepted Answer · 2022-07-04 20:56:26Z

-2

For developing on apple silicon (M1), I needed to remove the google_maps plugin. This plugin moves the simulator to Rosetta and this has some issues with image handling in the simulator.

answered Jul 4, 2022 at 20:56

Torsten Becker

454 bronze badges

Collectives™ on Stack Overflow

flutter image picker not working and crashing app without error on debug

5 Answers 5

1 Comment

Comments

1 Comment

3 Comments

Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

5 Answers 5

1 Comment

Comments

1 Comment

3 Comments

Comments

Your Answer

Sign up or log in

Post as a guest

Related