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Description:

volume watcher

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volume_watcher #

Support ios and android real-time return system volume value, maximum volume, initial volume, support set volume.

Getting Started #
dependencies:
volume_watcher: ^1.3.0
Support Methods #
VolumeWatcher.platformVersion
VolumeWatcher.getMaxVolume
VolumeWatcher.getCurrentVolume
VolumeWatcher.setVolume(0.0)
//Only valid on iOS
VolumeWatcher.hideVolumeView = true;
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Support Listener： #
VolumeWatcher(
onVolumeChangeListener: (double volume) {
///do sth.
},
)
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Super simple to use #
import 'package:flutter/material.dart';
import 'dart:async';

import 'package:flutter/services.dart';
import 'package:volume_watcher/volume_watcher.dart';

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

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

class _MyAppState extends State<MyApp> {
String _platformVersion = 'Unknown';
double currentVolume = 0;
double initVolume = 0;
double maxVolume = 0;

@override
void initState() {
super.initState();
initPlatformState();
}

// Platform messages are asynchronous, so we initialize in an async method.
Future<void> initPlatformState() async {
String platformVersion;

// Platform messages may fail, so we use a try/catch PlatformException.
try {
VolumeWatcher.hideVolumeView = true;
platformVersion = await VolumeWatcher.platformVersion;
} on PlatformException {
platformVersion = 'Failed to get platform version.';
}

double initVolume;
double maxVolume;
try {
initVolume = await VolumeWatcher.getCurrentVolume;
maxVolume = await VolumeWatcher.getMaxVolume;
} on PlatformException {
platformVersion = 'Failed to get volume.';
}

// If the widget was removed from the tree while the asynchronous platform
// message was in flight, we want to discard the reply rather than calling
// setState to update our non-existent appearance.
if (!mounted) return;

setState(() {
_platformVersion = platformVersion;
this.initVolume = initVolume;
this.maxVolume = maxVolume;
});
}

@override
Widget build(BuildContext context) {
return MaterialApp(
home: Scaffold(
appBar: AppBar(
title: const Text('Plugin example app'),
),
body: Center(
child: Column(
mainAxisAlignment: MainAxisAlignment.center,
children: <Widget>[
VolumeWatcher(
onVolumeChangeListener: (double volume) {
setState(() {
currentVolume = volume;
});
},
),
Text("platformVersion=${_platformVersion}"),
Text("maxVolume=${maxVolume}"),
Text("initVolume=${initVolume}"),
Text("currentVolume=${currentVolume}"),
RaisedButton(
onPressed: (){
VolumeWatcher.setVolume(maxVolume*0.5);
},
child: Text("setVolume:${maxVolume*0.5}"),
),
RaisedButton(
onPressed: (){
VolumeWatcher.setVolume(maxVolume*0.0);
},
child: Text("setVolume:${maxVolume*0.0}"),
)
]),
),
),
);
}
}
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