Flutter Image_Picker doesn't pick image from gallery and return to app

 File _image;
 String _image1 = "";

 Future getImage() async {

    final pickedFile = await picker.getImage(source: ImageSource.gallery);
    setState(() {
      if (pickedFile != null) {
        _image1 = pickedFile.path;
        _image = File(pickedFile.path);
        print(json.encode(_image1));
        print("file path...");
      } else {
        print('No image selected.');
      }
    });
  }

For the iOS, as stated in the documentation, you'll need some config in the native side relating to permission:

Add the following keys to your Info.plist file, located in /ios/Runner/Info.plist:

• NSPhotoLibraryUsageDescription - describe why your app needs permission for the photo library. This is called Privacy - Photo Library Usage Description in the visual editor.
• NSCameraUsageDescription - describe why your app needs access to the camera. This is called Privacy - Camera Usage Description in the visual editor.
• NSMicrophoneUsageDescription - describe why your app needs access to the microphone, if you intend to record videos. This is called Privacy - Microphone Usage Description in the visual editor.

Other than that, it should work perfectly fine with your code. The image should be fit within a Flexible like this, or maybe a SizedBox to avoid overflowing:

import 'dart:io';

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

void main() {
  runApp(MaterialApp(
    home: SampleScreen(),
  ));
}

class SampleScreen extends StatefulWidget {
  @override
  _SampleScreenState createState() => _SampleScreenState();
}

class _SampleScreenState extends State<SampleScreen> {
  File _image;
  final picker = ImagePicker();

  Future getImage() async {
    final pickedFile = await picker.getImage(source: ImageSource.gallery);

    setState(() {
      if (pickedFile != null) {
        _image = File(pickedFile.path);
      } else {
        print('No image selected.');
      }
    });
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      body: Center(
        child: Column(
          mainAxisAlignment: MainAxisAlignment.center,
          children: [
            FlatButton(onPressed: () => getImage(), child: Text('Press me')),
            Flexible(child: _image != null ? Image.file(_image) : Text('no Image')),
          ],
        ),
      ),
    );
  }
}

In my case, I update my Image picker library from 0.6.3 to 0.8.4 hope this helps anyone.

You need to add the user permissions(key) and add the purpose(values) of these in info.plist file in iOS module.

Add the following keys to your Info.plist file, located in /ios/Runner/Info.plist:

NSPhotoLibraryUsageDescription - describe why your app needs permission for the photo library. This is called Privacy - Photo Library Usage Description in the visual editor.

NSCameraUsageDescription - describe why your app needs access to the camera. This is called Privacy - Camera Usage Description in the visual editor.

dependencies: image_picker: ^0.8.4+4

import 'package:image_picker/image_picker.dart';

  final picker = ImagePicker();

Future pickImage() async {
setState(() {
  picselected1 = false;
});
ImagePicker picker = ImagePicker();
PickedFile pickedFile;
pickedFile = await picker.getImage(
  source: ImageSource.gallery,
);

setState(() {
  if (pickedFile != null) {
    picselected1 = true;
    // _images.add(File(pickedFile.path));
    _image = File(pickedFile.path); // Use if you only need a single picture
  } else {
    print('No image selected.');
  }
});
}