logcat_monitor 0.0.5 logcat_monitor: ^0.0.5 copied to clipboard
Flutter plugin to monitor the stream of system messages, stack traces etc using logcat command-line tool.
import 'package:flutter/material.dart';
import 'dart:async';
import 'package:flutter/services.dart';
import 'package:logcat_monitor/logcat_monitor.dart';
void main() {
runApp(MyApp());
}
class MyApp extends StatefulWidget {
@override
_MyAppState createState() => _MyAppState();
}
class _MyAppState extends State<MyApp> {
StringBuffer _logBuffer = StringBuffer();
int _groupValue = 0;
@override
void initState() {
super.initState();
initPlatformState();
}
Future<void> initPlatformState() async {
try {
LogcatMonitor.addListen(_listenStream);
} on PlatformException {
debugPrint('Failed to listen Stream of log.');
}
await LogcatMonitor.startMonitor("*.*");
}
void _listenStream(dynamic value) {
if (value is String) {
if (mounted) {
setState(() {
_logBuffer.writeln(value);
});
} else {
_logBuffer.writeln(value);
}
}
}
@override
Widget build(BuildContext context) {
return MaterialApp(
home: Scaffold(
appBar: AppBar(
title: const Text('Logcat Monitor example app'),
),
body: Column(
children: [
Text("Logcat log:"),
logboxBuild(context),
Column(
children: [
RadioListTile(
title: Text("logcat filter: *.*"),
value: 0,
groupValue: _groupValue,
onChanged: (value) async {
setState(() {
_groupValue = value;
_logBuffer.clear();
});
await LogcatMonitor.startMonitor("*.*");
},
),
RadioListTile(
title: Text("logcat filter: flutter,LogcatMonPlugin,S:*"),
value: 1,
groupValue: _groupValue,
onChanged: (value) async {
setState(() {
_groupValue = value;
_logBuffer.clear();
});
await LogcatMonitor.startMonitor(
"flutter:*,LogcatMonPlugin:*,*:S");
},
),
],
),
TextButton(
child: Text("call debugPrint on flutter"),
onPressed: () async {
debugPrint("called debugPrint from flutter!");
},
style: TextButton.styleFrom(
elevation: 2, backgroundColor: Colors.amber[100]),
),
TextButton(
child: Text("Clear"),
onPressed: () async {
clearLog();
},
style: TextButton.styleFrom(
elevation: 2, backgroundColor: Colors.amber[100]),
),
],
),
),
);
}
Widget logboxBuild(BuildContext context) {
return Expanded(
child: Center(
child: Container(
decoration: BoxDecoration(
color: Colors.black,
border: Border.all(
color: Colors.blueAccent,
width: 1.0,
),
),
child: Scrollbar(
thickness: 10,
radius: Radius.circular(20),
child: SingleChildScrollView(
reverse: true,
scrollDirection: Axis.vertical,
child: Text(
_logBuffer.toString(),
style: TextStyle(
color: Colors.white,
fontSize: 14.0,
),
),
),
),
),
),
);
}
void clearLog() async {
LogcatMonitor.clearLogcat;
await Future.delayed(const Duration(milliseconds: 100));
setState(() {
_logBuffer.clear();
_logBuffer.writeln("log buffer cleared");
});
}
}