- Shows photo gallery similar to as in whatsapp, folders segregated.
- Would work perfect on Scoped storage android 10 and above.
- Is meant for image picking use in flutter, adding instructions provided below.
Instructions to add in flutter project for image-picking alternative
- Copy paste all 5 files from this project into your flutter android module at app/src/main/java in a package 'ImageHelperFiles'
- Don't forget to copy paste required resource files, drawables and layouts.
- Register activities in manifest as follows.
<activity
android:name=".ImageHelperFiles.GalleryImages"
android:theme="@style/Theme.AppCompat.NoActionBar" />
<activity
android:name=".ImageHelperFiles.PhotoGallery"
android:theme="@style/Theme.AppCompat.NoActionBar" />
- In your flutter android module at app/src/main/java in MainActivity.java class, paste the following code to register the method call.
private MethodChannel.Result mResult;
private final int IMAGE_PICKER = 100;
@Override
public void configureFlutterEngine(@NonNull FlutterEngine flutterEngine) {
super.configureFlutterEngine(flutterEngine);
String CHANNEL = "METHOD-CHANNEL-NAME";
new MethodChannel(flutterEngine.getDartExecutor().getBinaryMessenger(), CHANNEL)
.setMethodCallHandler((call, result) -> {
switch (call.method) {
case "pick_image" :
mResult = result;
pickFromGallery();
break;
default:
result.notImplemented();
}
});
}
void pickFromGallery() {
Intent galleryIntent = new Intent(this, GalleryImages.class);
startActivityForResult(galleryIntent, IMAGE_PICKER);
}
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
if(requestCode==IMAGE_PICKER) {
switch(resultCode) {
case RESULT_OK:
ArrayList<String> selectedImages = data.getStringArrayListExtra("selected_images");
mResult.success(selectedImages);
break;
case RESULT_CANCELED:
selectedImages = new ArrayList<>();
mResult.success(selectedImages);
break;
default:
mResult.error("Unknown Error", "Unhandled error occurred!", null);
}
}
}
- Place this file in lib folder of your flutter project.
import 'dart:convert';
import 'dart:io';
import 'package:flutter/material.dart';
import 'package:flutter/services.dart';
class ImagePicker {
final MethodChannel channel;
LeimoImagePicker({@required this.channel});
Future<List> chooseImages() async {
return await channel.invokeMethod("pick_image");
}
}
- Handle onClick function on OK Button in GalleryImages.java file to setup logic for sending back selected images. Suggested way is shown below.
Intent intent = getIntent();
intent.putStringArrayListExtra("selected_images", selectedImages);
setResult(RESULT_OK, intent);
finish();
- You can also handle onBackPressed method as follows.
Intent intent = getIntent();
setResult(RESULT_CANCELED, intent);
finish();
- To trigger the method for image picking, add the following code in your flutter project.
ImagePicker imagePicker = ImagePicker(
channel: const MethodChannel("METHOD-CHANNEL-NAME"));
var _images = await imagePicker.chooseImages();
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