memory_info 0.1.0

Flutter package to get device memory info(ram&rom) at android/ios devices

example/lib/main.dart

import 'dart:async';
import 'dart:convert';

import 'package:flutter/material.dart';
import 'package:flutter/services.dart';
import 'package:memory_info/memory_info.dart';

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

class MyApp extends StatefulWidget {
  @override
  _MyAppState createState() => _MyAppState();
}

class _MyAppState extends State<MyApp> {
  Memory? _memory;
  DiskSpace? _diskSpace;
  final List<String> _pressureEvents = [];
  StreamSubscription<MemoryPressureEvent>? _pressureSubscription;

  @override
  void initState() {
    super.initState();
    getMemoryInfo();
    _pressureSubscription = MemoryInfoPlugin().onMemoryPressure.listen((event) {
      setState(() {
        _pressureEvents.insert(
          0,
          '${DateTime.now().toIso8601String().substring(11, 19)} '
          '${event.level.name}'
          '${event.androidTrimLevel != null ? ' (trim ${event.androidTrimLevel})' : ''}',
        );
      });
      getMemoryInfo();
    });
  }

  @override
  void dispose() {
    _pressureSubscription?.cancel();
    super.dispose();
  }

  Future<void> getMemoryInfo() async {
    Memory? memory;
    DiskSpace? diskSpace;
    try {
      memory = await MemoryInfoPlugin().memoryInfo;
      diskSpace = await MemoryInfoPlugin().diskSpace;
    } on PlatformException catch (e) {
      debugPrint('error $e');
    }

    if (!mounted) return;

    setState(() {
      _memory = memory;
      _diskSpace = diskSpace;
    });
  }

  @override
  Widget build(BuildContext context) {
    final encoder = JsonEncoder.withIndent('  ');
    final memInfo = encoder.convert(_memory?.toMap());
    final diskInfo = encoder.convert(
      _diskSpace == null
          ? null
          : {..._diskSpace!.toMap(), 'diskUsedSpace': _diskSpace!.usedSpace},
    );
    return MaterialApp(
      home: Scaffold(
        floatingActionButton: FloatingActionButton(
          onPressed: getMemoryInfo,
          child: Icon(Icons.update),
        ),
        appBar: AppBar(
          title: const Text('Plugin example app'),
        ),
        body: ListView(
          padding: const EdgeInsets.all(8.0),
          children: [
            Text('MemInfo:\n', style: TextStyle(fontWeight: FontWeight.w800)),
            Text(memInfo),
            Text('\n--------------------------------------------\n'),
            Text('DiskInfo:\n', style: TextStyle(fontWeight: FontWeight.w800)),
            Text(diskInfo),
            Text('\n--------------------------------------------\n'),
            Text('Memory pressure:\n',
                style: TextStyle(fontWeight: FontWeight.w800)),
            Text(_pressureEvents.isEmpty
                ? 'No events'
                : _pressureEvents.join('\n')),
          ],
        ),
      ),
    );
  }
}