staging for opening file from context menu

android/app/src/main/kotlin/com/example/mdeditor/MainActivity.kt

@@ -1,5 +1,38 @@
 package com.deathblade666.mdeditor
 
-import io.flutter.embedding.android.FlutterActivity
+//import io.flutter.embedding.android.FlutterActivity
+
+//class MainActivity: FlutterActivity()
+
+import android.content.Intent;
+import android.net.Uri;
+import android.os.Bundle;
+import io.flutter.embedding.android.FlutterActivity;
+import io.flutter.plugin.common.MethodChannel;
+
+public class MainActivity extends FlutterActivity {
+    private static final String CHANNEL = "markdown editor";
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+
+        new MethodChannel(getFlutterEngine().getDartExecutor().getBinaryMessenger(), CHANNEL)
+            .setMethodCallHandler((call, result) -> {
+                if (call.method.equals("getFileUri")) {
+                    Intent intent = getIntent();
+                    String action = intent.getAction();
+                    Uri data = intent.getData();
+
+                    if (Intent.ACTION_VIEW.equals(action) && data != null) {
+                        result.success(data.toString());
+                    } else {
+                        result.error("UNAVAILABLE", "File URI not available.", null);
+                    }
+                } else {
+                    result.notImplemented();
+                }
+            });
+    }
+}
 
-class MainActivity: FlutterActivity()

lib/pages/split_edit.dart

@@ -1,5 +1,6 @@
 import 'dart:core';
 import 'package:flutter/material.dart';
+import 'package:flutter/services.dart';
 import 'package:linked_scroll_controller/linked_scroll_controller.dart';
 import 'package:markdown_toolbar/markdown_toolbar.dart';
 import 'package:mdeditor/pages/menu.dart';
@@ -31,7 +32,7 @@ class editorState extends State<Editor> {
   ScrollController scrollRenderController = ScrollController();
   ScrollController userInputController = ScrollController();
   bool toolBarToggle = enableToolBar;
-
+  static const platform = MethodChannel("markdown editor");
 @override
   void initState() {
     onStart();