Pratik Butani pratikbutani

Target Android API 36 (Android 16) Upgrade — Engineering Prompt

By Pratik Butani

Context

Google Play requires app updates to target API level 36 (Android 16) by August 31, 2026 (an extension to Nov 1, 2026 is requestable). This applies identically to native Android and Flutter apps — Flutter builds through the same Android Gradle project under android/.

	import 'dart:async';
	import 'dart:math' as math;

	import 'package:flutter/material.dart';

	void main() {
	runApp(const MyApp());
	}

	class MyApp extends StatelessWidget {

	<html>
	<head>
	<meta charset="UTF-8">
	<title>Dart + HTML + CSS Example</title>
	<link rel="stylesheet" type="text/css" href="styles.css">
	</head>
	<body>
	<h1>Click the button to change the color of the text!</h1>
	<br><br>
	<button id="colorButton">Change color</button>

	import 'dart:isolate';

	void main() async {
	final receivePort = ReceivePort();
	final isolate = await Isolate.spawn(doHeavyWork, receivePort.sendPort);
	receivePort.listen((data) => print('Result: $data'));
	}

	void doHeavyWork(SendPort sendPort) {
	// Perform some CPU-intensive work here

	import 'package:flutter/material.dart';

	void main() {
	runApp(MyApp());
	}

	class MyApp extends StatelessWidget {
	@override
	Widget build(BuildContext context) {
	return MaterialApp(

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

	void main() {
	runApp(const MyApp());
	}

	class MyApp extends StatelessWidget {
	const MyApp({Key? key}) : super(key: key);

	import 'package:flutter/material.dart';

	void main() => runApp(const MyApp());

	class MyApp extends StatelessWidget {
	const MyApp({super.key});

	static const String _title = 'Flutter Code Sample';

	@override

	import 'package:flutter/material.dart';

	const Color darkBlue = Color.fromARGB(255, 18, 32, 47);

	void main() {
	runApp(MyApp());
	}

	class MyApp extends StatelessWidget {
	@override