电话会议就像放大颤动

问题描述

我想在我的应用程序中进行视频电话会议，任何人都知道如何做到这一点，除了agora，因为我已经知道了，但它是付费的。那么还有其他解决方案吗？

还有一件事在颤振中支持缩放吗？

解决方法

是的，您可以为此使用 jitsi_meet 包：示例如下：

import 'dart:io';

import 'package:flutter/cupertino.dart';
import 'package:flutter/material.dart';
import 'package:jitsi_meet/feature_flag/feature_flag.dart';
import 'package:jitsi_meet/jitsi_meet.dart';
import 'package:jitsi_meet/jitsi_meeting_listener.dart';
import 'package:jitsi_meet/room_name_constraint.dart';
import 'package:jitsi_meet/room_name_constraint_type.dart';

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

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

class _MyAppState extends State<MyApp> {
  final serverText = TextEditingController();
  final roomText = TextEditingController(text: "plugintestroom");
  final subjectText = TextEditingController(text: "My Plugin Test Meeting");
  final nameText = TextEditingController(text: "Plugin Test User");
  final emailText = TextEditingController(text: "[e-mail]");
  var isAudioOnly = true;
  var isAudioMuted = true;
  var isVideoMuted = true;

  @override
  void initState() {
    super.initState();
    JitsiMeet.addListener(JitsiMeetingListener(
        onConferenceWillJoin: _onConferenceWillJoin,onConferenceJoined: _onConferenceJoined,onConferenceTerminated: _onConferenceTerminated,onPictureInPictureWillEnter: _onPictureInPictureWillEnter,onPictureInPictureTerminated: _onPictureInPictureTerminated,onError: _onError));
  }

  @override
  void dispose() {
    super.dispose();
    JitsiMeet.removeAllListeners();
  }

  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      home: Scaffold(
        appBar: AppBar(
          title: const Text('Plugin example app'),),body: Container(
          padding: const EdgeInsets.symmetric(
            horizontal: 16.0,child: SingleChildScrollView(
            child: Column(
              children: <Widget>[
                SizedBox(
                  height: 24.0,TextField(
                  controller: serverText,decoration: InputDecoration(
                      border: OutlineInputBorder(),labelText: "Server URL",hintText: "Hint: Leave empty for meet.jitsi.si"),SizedBox(
                  height: 16.0,TextField(
                  controller: roomText,decoration: InputDecoration(
                    border: OutlineInputBorder(),labelText: "Room",TextField(
                  controller: subjectText,labelText: "Subject",TextField(
                  controller: nameText,labelText: "Display Name",TextField(
                  controller: emailText,labelText: "Email",CheckboxListTile(
                  title: Text("Audio Only"),value: isAudioOnly,onChanged: _onAudioOnlyChanged,CheckboxListTile(
                  title: Text("Audio Muted"),value: isAudioMuted,onChanged: _onAudioMutedChanged,CheckboxListTile(
                  title: Text("Video Muted"),value: isVideoMuted,onChanged: _onVideoMutedChanged,Divider(
                  height: 48.0,thickness: 2.0,SizedBox(
                  height: 64.0,width: double.maxFinite,child: RaisedButton(
                    onPressed: () {
                      _joinMeeting();
                    },child: Text(
                      "Join Meeting",style: TextStyle(color: Colors.white),color: Colors.blue,SizedBox(
                  height: 48.0,],);
  }

  _onAudioOnlyChanged(bool value) {
    setState(() {
      isAudioOnly = value;
    });
  }

  _onAudioMutedChanged(bool value) {
    setState(() {
      isAudioMuted = value;
    });
  }

  _onVideoMutedChanged(bool value) {
    setState(() {
      isVideoMuted = value;
    });
  }

  _joinMeeting() async {
    String serverUrl =
        serverText.text?.trim()?.isEmpty ?? "" ? null : serverText.text;

    try {
      // Enable or disable any feature flag here
      // If feature flag are not provided,default values will be used
      // Full list of feature flags (and defaults) available in the README
      FeatureFlag featureFlag = FeatureFlag();
      featureFlag.welcomePageEnabled = false;
      // Here is an example,disabling features for each platform
      if (Platform.isAndroid) {
        // Disable ConnectionService usage on Android to avoid issues (see README)
        featureFlag.callIntegrationEnabled = false;
      } else if (Platform.isIOS) {
        // Disable PIP on iOS as it looks weird
        featureFlag.pipEnabled = false;
      }

      //uncomment to modify video resolution
      //featureFlag.resolution = FeatureFlagVideoResolution.MD_RESOLUTION;

      // Define meetings options here
      var options = JitsiMeetingOptions()
        ..room = roomText.text
        ..serverURL = serverUrl
        ..subject = subjectText.text
        ..userDisplayName = nameText.text
        ..userEmail = emailText.text
        ..audioOnly = isAudioOnly
        ..audioMuted = isAudioMuted
        ..videoMuted = isVideoMuted
        ..featureFlag = featureFlag;

      debugPrint("JitsiMeetingOptions: $options");
      await JitsiMeet.joinMeeting(
        options,listener: JitsiMeetingListener(onConferenceWillJoin: ({message}) {
          debugPrint("${options.room} will join with message: $message");
        },onConferenceJoined: ({message}) {
          debugPrint("${options.room} joined with message: $message");
        },onConferenceTerminated: ({message}) {
          debugPrint("${options.room} terminated with message: $message");
        },onPictureInPictureWillEnter: ({message}) {
          debugPrint("${options.room} entered PIP mode with message: $message");
        },onPictureInPictureTerminated: ({message}) {
          debugPrint("${options.room} exited PIP mode with message: $message");
        }),// by default,plugin default constraints are used
        //roomNameConstraints: new Map(),// to disable all constraints
        //roomNameConstraints: customContraints,// to use your own constraint(s)
      );
    } catch (error) {
      debugPrint("error: $error");
    }
  }

  static final Map<RoomNameConstraintType,RoomNameConstraint>
      customContraints = {
    RoomNameConstraintType.MAX_LENGTH: new RoomNameConstraint((value) {
      return value.trim().length <= 50;
    },"Maximum room name length should be 30."),RoomNameConstraintType.FORBIDDEN_CHARS: new RoomNameConstraint((value) {
      return RegExp(r"[$€£]+",caseSensitive: false,multiLine: false)
              .hasMatch(value) ==
          false;
    },"Currencies characters aren't allowed in room names."),};

  void _onConferenceWillJoin({message}) {
    debugPrint("_onConferenceWillJoin broadcasted with message: $message");
  }

  void _onConferenceJoined({message}) {
    debugPrint("_onConferenceJoined broadcasted with message: $message");
  }

  void _onConferenceTerminated({message}) {
    debugPrint("_onConferenceTerminated broadcasted with message: $message");
  }

  void _onPictureInPictureWillEnter({message}) {
    debugPrint("_onPictureInPictureWillEnter broadcasted with message: $message");
  }

  void _onPictureInPictureTerminated({message}) {
    debugPrint("_onPictureInPictureTerminated broadcasted with message: $message");
  }

  _onError(error) {
    debugPrint("_onError broadcasted: $error");
  }
}