Mulai cepat: Menambahkan panggilan suara ke aplikasi Anda

Mulai menggunakan Azure Communication Services dengan menggunakan SDK Panggilan untuk menambahkan panggilan suara dan video ke aplikasi Anda.

Dalam mulai cepat ini, Anda mempelajari cara memulai panggilan menggunakan Azure Communication Services Calling SDK untuk Windows.

Anda dapat mengunduh aplikasi sampel dari GitHub.

Prasyarat

Untuk menyelesaikan tutorial ini, Anda memerlukan prasyarat berikut:

Menyiapkan

Membuat proyek

Di Visual Studio, buat proyek baru dengan templat Blank App (Universal Windows) untuk menyiapkan aplikasi Universal Windows Platform (UWP) satu halaman.

Screenshot showing the New UWP Project window within Visual Studio.

Pasang paket

Pilih kanan proyek Anda dan buka Manage Nuget Packages untuk menginstal Azure.Communication.Calling.WindowsClient1.4.0 atau lebih unggul. Pastikan Include Prerelease dicentang jika Anda ingin melihat versi untuk pratinjau publik.

Meminta akses

Package.appxmanifest Buka dan pilih Capabilities. Periksa Internet (Client) dan Internet (Client & Server) untuk mendapatkan akses masuk dan keluar ke Internet. Periksa Microphone untuk mengakses umpan audio mikrofon, dan Webcam untuk mengakses umpan video kamera.

Screenshot showing requesting access to Internet and Microphone in Visual Studio.

Menyiapkan kerangka kerja aplikasi

Kita perlu mengonfigurasi tata letak dasar untuk melampirkan logika. Untuk melakukan panggilan keluar, kita perlu TextBox memberikan ID Pengguna dari penerima panggilan. Kita juga butuh tombol Start/Join call dan tombol Hang up. Mute Kotak centang dan BackgroundBlur juga disertakan dalam sampel ini untuk menunjukkan fitur mengubah status audio dan efek video.

Buka MainPage.xaml proyek Anda dan tambahkan node Grid ke Page:

<Page
    x:Class="CallingQuickstart.MainPage"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    xmlns:local="using:CallingQuickstart"
    xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
    xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
    mc:Ignorable="d"
    Background="{ThemeResource ApplicationPageBackgroundThemeBrush}" Width="800" Height="600">

        <!-- Don't forget to replace ‘CallingQuickstart’ with your project’s name -->


    <Grid>
        <Grid.RowDefinitions>
            <RowDefinition Height="16*"/>
            <RowDefinition Height="30*"/>
            <RowDefinition Height="200*"/>
            <RowDefinition Height="60*"/>
            <RowDefinition Height="16*"/>
        </Grid.RowDefinitions>
        <TextBox Grid.Row="1" x:Name="CalleeTextBox" PlaceholderText="Who would you like to call?" TextWrapping="Wrap" VerticalAlignment="Center" Height="30" Margin="10,10,10,10" />

        <Grid x:Name="AppTitleBar" Background="LightSeaGreen">
            <TextBlock x:Name="QuickstartTitle" Text="Calling Quickstart sample title bar" Style="{StaticResource CaptionTextBlockStyle}" Padding="7,7,0,0"/>
        </Grid>

        <Grid Grid.Row="2">
            <Grid.RowDefinitions>
                <RowDefinition/>
            </Grid.RowDefinitions>
            <Grid.ColumnDefinitions>
                <ColumnDefinition Width="*"/>
                <ColumnDefinition Width="*"/>
            </Grid.ColumnDefinitions>
            <MediaPlayerElement x:Name="LocalVideo" HorizontalAlignment="Center" Stretch="UniformToFill" Grid.Column="0" VerticalAlignment="Center" AutoPlay="True" />
            <MediaPlayerElement x:Name="RemoteVideo" HorizontalAlignment="Center" Stretch="UniformToFill" Grid.Column="1" VerticalAlignment="Center" AutoPlay="True" />
        </Grid>
        <StackPanel Grid.Row="3" Orientation="Vertical" Grid.RowSpan="2">
            <StackPanel Orientation="Horizontal">
                <Button x:Name="CallButton" Content="Start/Join call" Click="CallButton_Click" VerticalAlignment="Center" Margin="10,0,0,0" Height="40" Width="123"/>
                <Button x:Name="HangupButton" Content="Hang up" Click="HangupButton_Click" VerticalAlignment="Center" Margin="10,0,0,0" Height="40" Width="123"/>
                <CheckBox x:Name="MuteLocal" Content="Mute" Margin="10,0,0,0" Click="MuteLocal_Click" Width="74"/>
            </StackPanel>
        </StackPanel>
        <TextBox Grid.Row="5" x:Name="Stats" Text="" TextWrapping="Wrap" VerticalAlignment="Center" Height="30" Margin="0,2,0,0" BorderThickness="2" IsReadOnly="True" Foreground="LightSlateGray" />
    </Grid>
</Page>

Buka MainPage.xaml.cs dan ganti konten dengan implementasi berikut:

using Azure.Communication.Calling.WindowsClient;
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Linq;
using System.Threading.Tasks;
using Windows.ApplicationModel;
using Windows.ApplicationModel.Core;
using Windows.Media.Core;
using Windows.Networking.PushNotifications;
using Windows.UI;
using Windows.UI.ViewManagement;
using Windows.UI.Xaml;
using Windows.UI.Xaml.Controls;
using Windows.UI.Xaml.Media;
using Windows.UI.Xaml.Navigation;

namespace CallingQuickstart
{
    public sealed partial class MainPage : Page
    {
        private const string authToken = "<AUTHENTICATION_TOKEN>";

        private CallClient callClient;
        private CallTokenRefreshOptions callTokenRefreshOptions = new CallTokenRefreshOptions(false);
        private CallAgent callAgent;
        private CommunicationCall call;

        private LocalOutgoingAudioStream micStream;

        #region Page initialization
        public MainPage()
        {
            this.InitializeComponent();
            // Additional UI customization code goes here
        }

        protected override async void OnNavigatedTo(NavigationEventArgs e)
        {
            await InitCallAgentAndDeviceManagerAsync();

            base.OnNavigatedTo(e);
        }
        #endregion

        #region UI event handlers
        private async void CallButton_Click(object sender, RoutedEventArgs e)
        {
            // Start a call
        }

        private async void HangupButton_Click(object sender, RoutedEventArgs e)
        {
            // Hang up a call
        }

        private async void MuteLocal_Click(object sender, RoutedEventArgs e)
        {
            // Toggle mute/unmute audio state of a call
        }
        #endregion

        #region API event handlers
        private async void OnIncomingCallAsync(object sender, IncomingCallReceivedEventArgs args)
        {
            // Handle incoming call event
        }

        private async void OnStateChangedAsync(object sender, PropertyChangedEventArgs args)
        {
            // Handle connected and disconnected state change of a call
        }
        #endregion

        #region Helper methods

        private async Task InitCallAgentAndDeviceManagerAsync()
        {
            //Initialize the call agent and search for devices
        }


        private async Task<CommunicationCall> StartCallAsync(string acsCallee)
        {
            // Start a call to an Azure Communication Services user using the CallAgent and the callee id
        }

        #endregion
    }
}

Model objek

Tabel berikutnya mencantumkan kelas dan antarmuka menangani beberapa fitur utama SDK Panggilan Azure Communication Services:

Nama Deskripsi
CallClient CallClient adalah titik masuk utama ke SDK Panggilan.
CallAgent CallAgent digunakan untuk memulai dan mengelola panggilan.
CommunicationCall CommunicationCall digunakan untuk mengelola panggilan yang sedang berlangsung.
CallTokenCredential CallTokenCredential digunakan sebagai kredensial token untuk membuat instans CallAgent.
CallIdentifier CallIdentifier digunakan untuk mewakili identitas pengguna, yang dapat menjadi salah satu opsi berikut: UserCallIdentifier, PhoneNumberCallIdentifier dll.

Mengautentikasi klien

Menginisialisasi CallAgent instans dengan Token Akses Pengguna yang memungkinkan kami melakukan dan menerima panggilan, dan secara opsional mendapatkan instans DeviceManager untuk mengkueri konfigurasi perangkat klien.

Dalam kode, ganti <AUTHENTICATION_TOKEN> dengan Token Akses Pengguna. Lihat dokumentasi token akses pengguna jika Anda belum memiliki token yang tersedia.

Tambahkan InitCallAgentAndDeviceManagerAsync fungsi, yang mem-bootstrap SDK. Pembantu ini dapat disesuaikan untuk memenuhi persyaratan aplikasi Anda.

        private async Task InitCallAgentAndDeviceManagerAsync()
        {
            this.callClient = new CallClient(new CallClientOptions() {
                Diagnostics = new CallDiagnosticsOptions() { 
                    
                    // make sure to put your project AppName
                    AppName = "CallingQuickstart",

                    AppVersion="1.0",

                    Tags = new[] { "Calling", "ACS", "Windows" }
                    }

                });

            // Set up local audio stream using the first mic enumerated
            var deviceManager = await this.callClient.GetDeviceManagerAsync();
            var mic = deviceManager?.Microphones?.FirstOrDefault();

            micStream = new LocalOutgoingAudioStream();

            var tokenCredential = new CallTokenCredential(authToken, callTokenRefreshOptions);

            var callAgentOptions = new CallAgentOptions()
            {
                DisplayName = $"{Environment.MachineName}/{Environment.UserName}",
            };

            this.callAgent = await this.callClient.CreateCallAgentAsync(tokenCredential, callAgentOptions);

            this.callAgent.IncomingCallReceived += OnIncomingCallAsync;
        }

Memulai panggilan

StartCallOptions Setelah objek diperoleh, CallAgent dapat digunakan untuk memulai panggilan Azure Communication Services:

        private async Task<CommunicationCall> StartCallAsync(string acsCallee)
        {
            var options = new StartCallOptions();
            var call = await this.callAgent.StartCallAsync( new [] { new UserCallIdentifier(acsCallee) }, options);
            return call;
        }

Mengakhiri panggilan

Akhiri panggilan saat ini ketika tombol Hang up diklik. Tambahkan implementasi ke HangupButton_Click untuk mengakhiri panggilan, dan hentikan pratinjau dan streaming video.

        private async void HangupButton_Click(object sender, RoutedEventArgs e)
        {
            var call = this.callAgent?.Calls?.FirstOrDefault();
            if (call != null)
            {
                await call.HangUpAsync(new HangUpOptions() { ForEveryone = false });
            }
        }

Matikan suara/nyalakan suara pada audio

Matikan suara audio keluar saat tombol Mute diklik. Tambahkan implementasi ke MuteLocal_Click untuk mematikan suara panggilan.

        private async void MuteLocal_Click(object sender, RoutedEventArgs e)
        {
            var muteCheckbox = sender as CheckBox;

            if (muteCheckbox != null)
            {
                var call = this.callAgent?.Calls?.FirstOrDefault();

                if (call != null)
                {
                    if ((bool)muteCheckbox.IsChecked)
                    {
                        await call.MuteOutgoingAudioAsync();
                    }
                    else
                    {
                        await call.UnmuteOutgoingAudioAsync();
                    }
                }

                // Update the UI to reflect the state
            }
        }

Menerima panggilan masuk

IncomingCallReceived sink peristiwa disiapkan di pembantu bootstrap InitCallAgentAndDeviceManagerAsyncSDK .

    this.callAgent.IncomingCallReceived += OnIncomingCallAsync;

Aplikasi memiliki kesempatan untuk mengonfigurasi bagaimana panggilan masuk harus diterima, seperti jenis streaming video dan audio.

        private async void OnIncomingCallAsync(object sender, IncomingCallReceivedEventArgs args)
        {
            var incomingCall = args.IncomingCall;

            var acceptCallOptions = new AcceptCallOptions() { };

            call = await incomingCall.AcceptAsync(acceptCallOptions);
            call.StateChanged += OnStateChangedAsync;
        }

Memantau dan merespons peristiwa perubahan status panggilan

StateChanged peristiwa pada CommunicationCall objek diaktifkan ketika transaksi panggilan yang sedang berlangsung dari satu status ke status lainnya. Aplikasi ditawarkan peluang untuk mencerminkan perubahan status pada UI atau menyisipkan logika bisnis.

        private async void OnStateChangedAsync(object sender, PropertyChangedEventArgs args)
        {
            var call = sender as CommunicationCall;

            if (call != null)
            {
                var state = call.State;

                // Update the UI

                switch (state)
                {
                    case CallState.Connected:
                        {
                            await call.StartAudioAsync(micStream);

                            break;
                        }
                    case CallState.Disconnected:
                        {
                            call.StateChanged -= OnStateChangedAsync;

                            call.Dispose();

                            break;
                        }
                    default: break;
                }
            }
        }

Membuat tombol panggilan berfungsi

Callee ID Setelah tidak null atau kosong, Anda dapat memulai panggilan.

Status panggilan harus diubah menggunakan OnStateChangedAsync tindakan .


    private async void CallButton_Click(object sender, RoutedEventArgs e)
    {
        var callString = CalleeTextBox.Text.Trim();

        if (!string.IsNullOrEmpty(callString))
        {
            call = await StartCallAsync(callString);

            call.StateChanged += OnStateChangedAsync;
        }
    
        
    }

Menjalankan kode

Anda dapat membangun dan menjalankan kode di Visual Studio. Untuk platform solusi, kami mendukung ARM64, x64, dan x86.

Anda dapat melakukan panggilan keluar dengan memberikan ID pengguna di bidang teks dan mengklik tombol Start Call/Join. Memanggil 8:echo123 menghubungkan Anda dengan bot echo, fitur ini bagus untuk memulai dan memverifikasi perangkat audio Anda berfungsi.

Screenshot showing running the UWP quickstart app

Dalam mulai cepat ini, Anda mempelajari cara memulai panggilan menggunakan SDK Panggilan Azure Communication Services untuk JavaScript.

Kode Sampel

Anda dapat mengunduh aplikasi sampel dari GitHub.

Catatan

Panggilan keluar ke pengguna Azure Communication Services dapat diakses menggunakan Pustaka Antarmuka Pengguna Azure Communication Services. Pustaka UI memungkinkan pengembang untuk menambahkan klien panggilan yang diaktifkan VoIP ke dalam aplikasi mereka hanya dengan beberapa baris kode.

Prasyarat

Menyiapkan

Membuat aplikasi Node.js baru

Buka terminal atau jendela perintah buat direktori baru untuk aplikasi Anda, dan navigasikan ke sana.

mkdir calling-quickstart
cd calling-quickstart

Jalankan npm init -y untuk membuat file package.json dengan pengaturan default.

npm init -y

Pasang paket

Gunakan perintah npm install untuk memasang Azure Communication Services Calling SDK untuk JavaScript.

npm install @azure/communication-common --save
npm install @azure/communication-calling --save

Opsi --save mencantumkan pustaka sebagai dependensi di file package.json Anda.

Menyiapkan kerangka kerja aplikasi

Mulai cepat ini menggunakan Webpack untuk memaketkan aset aplikasi. Jalankan perintah berikut untuk menginstal paket npm webpack, webpack-cli, dan webpack-dev-server, serta cantumkan sebagai dependensi pengembangan di package.json Anda:

npm install copy-webpack-plugin@^11.0.0 webpack@^5.88.2 webpack-cli@^5.1.4 webpack-dev-server@^4.15.1 --save-dev

Berikut adalah html, yang perlu kita tambahkan ke index.html file yang kita buat:

<!DOCTYPE html>
<html>
  <head>
    <title>Communication Client - Calling Sample</title>
  </head>
  <body>
    <h4>Azure Communication Services</h4>
    <h1>Calling Quickstart</h1>
    <input 
      id="token-input"
      type="text"
      placeholder="User access token"
      style="margin-bottom:1em; width: 200px;"
    />
    </div>
    <button id="token-submit" type="button">
        Submit
    </button>
    <input 
      id="callee-id-input"
      type="text"
      placeholder="Who would you like to call?"
      style="margin-bottom:1em; width: 200px; display: block;"
    />
    <div>
      <button id="call-button" type="button" disabled="true">
        Start Call
      </button>
      &nbsp;
      <button id="accept-call-button" type="button" disabled="true">
        Accept Call
      </button>
      &nbsp;
      <button id="hang-up-button" type="button" disabled="true">
        Hang Up
      </button>
    </div>
    <script src="./main.js"></script>
  </body>
</html>

Buat file di direktori akar proyek Anda yang disebut index.js untuk berisi logika aplikasi untuk mulai cepat ini. Tambahkan kode berikut untuk mengimpor klien panggilan dan mendapatkan referensi ke elemen DOM sehingga kami dapat melampirkan logika bisnis kami.

import { CallClient } from "@azure/communication-calling";
import { AzureCommunicationTokenCredential } from '@azure/communication-common';

let call;
let incomingCall;
let callAgent;
let deviceManager;
let tokenCredential;
const userToken = document.getElementById("token-input"); 
const calleeInput = document.getElementById("callee-id-input");
const submitToken = document.getElementById("token-submit");
const callButton = document.getElementById("call-button");
const hangUpButton = document.getElementById("hang-up-button");
const acceptCallButton = document.getElementById('accept-call-button');

Model objek

Kelas dan antarmuka berikut menghandel beberapa fitur utama Azure Communication Services Calling SDK:

Nama Deskripsi
CallClient CallClient adalah titik masuk utama ke SDK Panggilan.
CallAgent CallAgent digunakan untuk memulai dan mengelola panggilan.
AzureCommunicationTokenCredential Kelas AzureCommunicationTokenCredential mengimplementasikan CommunicationTokenCredential antarmuka, yang digunakan untuk membuat instans CallAgent.

Mengautentikasi klien

Anda perlu memasukkan token akses pengguna yang valid untuk sumber daya Anda ke bidang teks dan klik 'Kirim'. Lihat dokumentasi token akses pengguna jika Anda belum memiliki token yang tersedia. CallClientMenggunakan , inisialisasi CallAgent instans dengan CommunicationTokenCredential yang memungkinkan untuk melakukan dan menerima panggilan.

Tambahkan kode berikut ke app.js:

submitToken.addEventListener("click", async () => {
  const callClient = new CallClient();
  const userTokenCredential = userToken.value;
    try {
      tokenCredential = new AzureCommunicationTokenCredential(userTokenCredential);
      callAgent = await callClient.createCallAgent(tokenCredential);
      deviceManager = await callClient.getDeviceManager();
      await deviceManager.askDevicePermission({ audio: true });
      callButton.disabled = false;
      submitToken.disabled = true;
      // Listen for an incoming call to accept.
      callAgent.on('incomingCall', async (args) => {
        try {
          incomingCall = args.incomingCall;
          acceptCallButton.disabled = false;
          callButton.disabled = true;
        } catch (error) {
          console.error(error);
        }
      });
    } catch(error) {
      window.alert("Please submit a valid token!");
    }
})

Memulai panggilan

Tambahkan penanganan kejadian untuk memulai panggilan saat callButton diklik:

callButton.addEventListener("click", () => {
  // start a call
  const userToCall = calleeInput.value;
  call = callAgent.startCall(
      [{ id: userToCall }],
      {}
  );
  // toggle button states
  hangUpButton.disabled = false;
  callButton.disabled = true;
});

Mengakhiri panggilan

Tambahkan pendengar peristiwa untuk mengakhiri panggilan saat ini ketika hangUpButton diklik:

hangUpButton.addEventListener("click", () => {
  // end the current call
  // The `forEveryone` property ends the call for all call participants.
  call.hangUp({ forEveryone: true });

  // toggle button states
  hangUpButton.disabled = true;
  callButton.disabled = false;
  submitToken.disabled = false;
  acceptCallButton.disabled = true;
});

Menerima panggilan masuk

Menambahkan pendengar peristiwa untuk menerima panggilan masuk ke acceptCallButton

acceptCallButton.onclick = async () => {
  try {
    call = await incomingCall.accept();
    acceptCallButton.disabled = true;
    hangUpButton.disabled = false;
  } catch (error) {
    console.error(error);
  }
}

Menambahkan kode server lokal webpack

Buat file di direktori akar proyek Anda yang disebut webpack.config.js untuk memuat logika server lokal untuk mulai cepat ini. Tambahkan kode berikut ke webpack.config.js:

const path = require('path');
const CopyPlugin = require("copy-webpack-plugin");

module.exports = {
    mode: 'development',
    entry: './index.js',
    output: {
        filename: 'main.js',
        path: path.resolve(__dirname, 'dist'),
    },
    devServer: {
        static: {
            directory: path.join(__dirname, './')
        },
    },
    plugins: [
        new CopyPlugin({
            patterns: [
                './index.html'
            ]
        }),
    ]
};

Menjalankan kode

Gunakan perintah npx webpack serve --config webpack.config.js untuk menjalankan aplikasi Anda.

Buka browser Anda dan navigasi ke http://localhost:8080/. Anda kemudian akan melihat layar berikut:

Screenshot of the completed JavaScript Application.

Anda dapat melakukan panggilan VOIP keluar dengan memberikan token akses pengguna dan ID pengguna yang sesuai di bidang teks terkait dan mengklik tombol Mulai Panggilan.

Panggilan 8:echo123 menghubungkan Anda dengan bot echo, yang bagus untuk memulai dan memverifikasi perangkat audio Anda berfungsi. Teruskan {id: '8:echo123'} ke API CallAgent.startCall() untuk memanggil bot echo. Untuk memanggil pengguna komunikasi Azure Communication Services, teruskan {communicationUserId: 'ACS_USER_ID'} ke CallAgent.startCall() API.

Dalam mulai cepat ini, Anda mempelajari cara memulai panggilan menggunakan Azure Communication Services Calling SDK untuk Android.

Kode Sampel

Anda dapat mengunduh aplikasi sampel dari GitHub.

Prasyarat

Menyiapkan

Membuat aplikasi Android dengan aktivitas kosong

Dari Android Studio, pilih Mulai proyek Android Studio baru.

Screenshot showing the 'Start a new Android Studio Project' button selected in Android Studio.

Pilih templat proyek "Aktivitas Tampilan Kosong" di bawah "Telepon dan Tablet".

Screenshot showing the 'Empty Activity' option selected in the Project Template Screen.

Pilih SDK Minimum "API 26: Android 8.0 (Oreo)" atau yang lebih tinggi.

Screenshot showing the 'Empty Activity' option selected in the Project Template Screen 2.

Pasang paket

Temukan proyek settings.gradle.kts Anda dan pastikan untuk melihat mavenCentral() daftar repositori di bawah pluginManagement dan dependencyResolutionManagement

pluginManagement {
    repositories {
    ...
        mavenCentral()
    ...
    }
}

dependencyResolutionManagement {
    repositoriesMode.set(RepositoriesMode.FAIL_ON_PROJECT_REPOS)
    repositories {
    ...
        mavenCentral()
    }
}

Kemudian, di build.gradle tingkat modul Anda, tambahkan baris berikut ke dependensi dan bagian android

android {
    ...
    
    compileOptions {
        sourceCompatibility JavaVersion.VERSION_1_8
        targetCompatibility JavaVersion.VERSION_1_8
    }
}

dependencies {
    ...
    implementation ("com.azure.android:azure-communication-calling:2.6.0")
    ...
}

Menambahkan izin ke manifes aplikasi

Untuk meminta izin yang diperlukan untuk melakukan panggilan, mereka harus dideklarasikan dalam Manifes Aplikasi (app/src/main/AndroidManifest.xml). Ganti konten file dengan kode berikut:

    <?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.contoso.acsquickstart">

    <uses-permission android:name="android.permission.INTERNET" />
    <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
    <uses-permission android:name="android.permission.ACCESS_WIFI_STATE" />
    <uses-permission android:name="android.permission.RECORD_AUDIO" />
    <uses-permission android:name="android.permission.CAMERA" />
    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
    <uses-permission android:name="android.permission.READ_PHONE_STATE" />

    <application
        android:allowBackup="true"
        android:icon="@mipmap/ic_launcher"
        android:label="@string/app_name"
        android:roundIcon="@mipmap/ic_launcher_round"
        android:supportsRtl="true"
        android:theme="@style/AppTheme">
        <!--Our Calling SDK depends on the Apache HTTP SDK.
When targeting Android SDK 28+, this library needs to be explicitly referenced.
See https://developer.android.com/about/versions/pie/android-9.0-changes-28#apache-p-->
        <uses-library android:name="org.apache.http.legacy" android:required="false"/>
        <activity android:name=".MainActivity">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
    </application>

</manifest>
    

Menyiapkan tata letak untuk aplikasi

Dua input diperlukan: input teks untuk ID penerima panggilan, dan tombol untuk melakukan panggilan. Input ini dapat ditambahkan melalui perancang atau dengan mengedit xml tata letak. Buat tombol dengan ID call_button dan input teks callee_id. Navigasi ke (app/src/main/res/layout/activity_main.xml) dan ganti konten file dengan kode berikut:

<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context=".MainActivity">

    <Button
        android:id="@+id/call_button"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginBottom="16dp"
        android:text="Call"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent" />

    <EditText
        android:id="@+id/callee_id"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:ems="10"
        android:hint="Callee Id"
        android:inputType="textPersonName"
        android:minHeight="48dp"
        app:layout_constraintBottom_toTopOf="@+id/call_button"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toTopOf="parent" />
</androidx.constraintlayout.widget.ConstraintLayout>

Membuat perancah dan pengikatan aktivitas utama

Dengan tata letak yang sudah dibuat, pengikatan beserta perancah dasar aktivitas dapat ditambahkan. Aktivitas menangani permintaan izin runtime, membuat agen panggilan, dan menempatkan panggilan saat tombol ditekan. Masing-masing tercakup dalam bagiannya sendiri. Metode onCreate ini ditimpa untuk memanggil getAllPermissions dan createAgent dan menambahkan pengikatan untuk tombol panggilan. Peristiwa ini hanya terjadi sekali ketika aktivitas dibuat. Untuk informasi selengkapnya, pada onCreate, lihat panduan Memahami Siklus Hidup Aktivitas.

Buka MainActivity.java dan ganti konten dengan kode berikut:

package com.contoso.acsquickstart;

import androidx.appcompat.app.AppCompatActivity;
import androidx.core.app.ActivityCompat;
import android.media.AudioManager;
import android.Manifest;
import android.content.pm.PackageManager;

import android.os.Bundle;
import android.widget.Button;
import android.widget.EditText;
import android.widget.Toast;

import com.azure.android.communication.common.CommunicationUserIdentifier;
import com.azure.android.communication.common.CommunicationTokenCredential;
import com.azure.android.communication.calling.CallAgent;
import com.azure.android.communication.calling.CallClient;
import com.azure.android.communication.calling.StartCallOptions;


import java.util.ArrayList;
import java.util.Arrays;

public class MainActivity extends AppCompatActivity {
    
    private CallAgent callAgent;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        getAllPermissions();
        createAgent();
        
        // Bind call button to call `startCall`
        Button callButton = findViewById(R.id.call_button);
        callButton.setOnClickListener(l -> startCall());
        
        setVolumeControlStream(AudioManager.STREAM_VOICE_CALL);
    }

    /**
     * Request each required permission if the app doesn't already have it.
     */
    private void getAllPermissions() {
        // See section on requesting permissions
    }

    /**
      * Create the call agent for placing calls
      */
    private void createAgent() {
        // See section on creating the call agent
    }

    /**
     * Place a call to the callee id provided in `callee_id` text input.
     */
    private void startCall() {
        // See section on starting the call
    }
}

Meminta izin saat runtime

Untuk Android 6.0 dan yang lebih tinggi (API level 23) dan targetSdkVersion 23 atau yang lebih tinggi, izin diberikan saat runtime, bukan saat aplikasi diinstal. Untuk mendukungnya, getAllPermissions dapat diimplementasikan untuk memanggil ActivityCompat.checkSelfPermission dan ActivityCompat.requestPermissions untuk setiap izin yang diperlukan.

/**
 * Request each required permission if the app doesn't already have it.
 */
private void getAllPermissions() {
    String[] requiredPermissions = new String[]{android.Manifest.permission.RECORD_AUDIO, android.Manifest.permission.CAMERA, android.Manifest.permission.WRITE_EXTERNAL_STORAGE, Manifest.permission.READ_PHONE_STATE};

    ArrayList<String> permissionsToAskFor = new ArrayList<>();

    for (String permission : requiredPermissions) {
        if (ActivityCompat.checkSelfPermission(this, permission) != PackageManager.PERMISSION_GRANTED) {
            permissionsToAskFor.add(permission);
        }
    }

    if (!permissionsToAskFor.isEmpty()) {
        ActivityCompat.requestPermissions(this, permissionsToAskFor.toArray(new String[0]), 1);
    }
}

Catatan

Saat merancang aplikasi Anda, pertimbangkan kapan izin ini harus diminta. Izin harus diminta saat dibutuhkan, bukan sebelumnya. Untuk informasi selengkapnya, lihat, Panduan Izin Android.

Model objek

Kelas dan antarmuka berikut menghandel beberapa fitur utama Azure Communication Services Calling SDK:

Nama Deskripsi
allClient CallClient adalah titik masuk utama ke SDK Panggilan.
CallAgent CallAgent digunakan untuk memulai dan mengelola panggilan.
CommunicationTokenCredential CommunicationTokenCredential digunakan sebagai kredensial token untuk membuat instans CallAgent.
CommunicationIdentifier CommunicationIdentifier digunakan sebagai jenis peserta yang berbeda yang dapat menjadi bagian dari panggilan.

Membuat agen dari token akses pengguna

Dengan token pengguna, agen panggilan terautentikasi dapat diinstansiasi. Umumnya token ini dihasilkan dari layanan dengan autentikasi khusus untuk aplikasi. Untuk informasi selengkapnya tentang token akses pengguna, periksa panduan Token Akses Pengguna.

Untuk mulai cepat, ganti <User_Access_Token> dengan token akses pengguna yang dihasilkan untuk sumber daya Azure Communication Service Anda.


/**
 * Create the call agent for placing calls
 */
private void createAgent() {
    String userToken = "<User_Access_Token>";

    try {
            CommunicationTokenCredential credential = new CommunicationTokenCredential(userToken);
            callAgent = new CallClient().createCallAgent(getApplicationContext(), credential).get();
    } catch (Exception ex) {
        Toast.makeText(getApplicationContext(), "Failed to create call agent.", Toast.LENGTH_SHORT).show();
    }
}

Memulai panggilan menggunakan agen panggilan

Panggilan dapat dilakukan melalui agen panggilan dan Anda hanya perlu memberikan daftar ID penerima panggilan dan opsi panggilan. Untuk mulai cepat, opsi panggilan default tanpa video dan SATU ID penerima panggilan dari input teks digunakan.

/**
 * Place a call to the callee id provided in `callee_id` text input.
 */
private void startCall() {
    EditText calleeIdView = findViewById(R.id.callee_id);
    
    String calleeId = calleeIdView.getText().toString();

    StartCallOptions options = new StartCallOptions();

    callAgent.startCall(
            getApplicationContext(),
            Arrays.asList(new CommunicationUserIdentifier[]{new CommunicationUserIdentifier(calleeId)}),
            options);
}

Meluncurkan aplikasi dan memanggil bot echo

Aplikasi kini dapat diluncurkan menggunakan tombol "Jalankan Aplikasi" pada toolbar (Shift+F10). Verifikasi bahwa Anda dapat melakukan panggilan dengan memanggil 8:echo123. Pesan yang direkam sebelumnya diputar lalu ulangi pesan Anda kembali kepada Anda.

Screenshot showing the completed application.

Dalam mulai cepat ini, Anda mempelajari cara memulai panggilan menggunakan Azure Communication Services Calling SDK untuk iOS.

Kode Sampel

Anda dapat mengunduh aplikasi sampel dari GitHub.

Prasyarat

Untuk menyelesaikan tutorial ini, Anda memerlukan prasyarat berikut:

Menyiapkan

Membuat proyek Xcode

Di Xcode, buat proyek iOS baru dan pilih templat Aplikasi. Tutorial ini menggunakan kerangka kerja SwiftUI, jadi Anda harus mengatur Bahasa ke Swift dan Antarmuka Pengguna ke SwiftUI. Anda tidak akan membuat tes selama mulai cepat ini. Jangan ragu untuk menghapus centang Sertakan Pengujian.

Screenshot showing the New Project window within Xcode.

Memasang paket dan dependensi dengan CocoaPods

  1. Untuk membuat Podfile untuk aplikasi Anda, buka terminal dan navigasikan ke folder proyek dan jalankan:

    pod init

  2. Tambahkan kode berikut ke Podfile dan simpan (pastikan "target" cocok dengan nama proyek Anda):

    platform :ios, '13.0'
    use_frameworks!
    
    target 'AzureCommunicationCallingSample' do
      pod 'AzureCommunicationCalling', '~> 1.0.0'
    end
    
  3. Jalankan pod install.

  4. Buka .xcworkspace dengan Xcode.

Minta akses ke mikrofon

Untuk mengakses mikrofon perangkat, Anda perlu memperbarui Daftar Properti Informasi aplikasi Anda dengan NSMicrophoneUsageDescription. Anda mengatur nilai terkait ke string yang disertakan dalam dialog yang digunakan sistem untuk meminta akses dari pengguna.

Klik kanan Info.plist entri pohon proyek dan pilih Buka Sebagai>Kode Sumber. Tambahkan baris berikut ke bagian <dict> tingkat atas, lalu simpan file.

<key>NSMicrophoneUsageDescription</key>
<string>Need microphone access for VOIP calling.</string>

Menyiapkan kerangka kerja aplikasi

Buka file ContentView.swift proyek Anda dan tambahkan deklarasi import ke bagian atas file untuk mengimpor AzureCommunicationCalling library. Selain itu, impor AVFoundation, kita memerlukan kode ini untuk permintaan izin audio dalam kode.

import AzureCommunicationCalling
import AVFoundation

Ganti implementasi struct ContentView dengan beberapa kontrol antarmuka pengguna sederhana yang memungkinkan pengguna memulai dan mengakhiri panggilan. Kami melampirkan logika bisnis ke kontrol ini dalam mulai cepat ini.

struct ContentView: View {
    @State var callee: String = ""
    @State var callClient: CallClient?
    @State var callAgent: CallAgent?
    @State var call: Call?

    var body: some View {
        NavigationView {
            Form {
                Section {
                    TextField("Who would you like to call?", text: $callee)
                    Button(action: startCall) {
                        Text("Start Call")
                    }.disabled(callAgent == nil)
                    Button(action: endCall) {
                        Text("End Call")
                    }.disabled(call == nil)
                }
            }
            .navigationBarTitle("Calling Quickstart")
        }.onAppear {
            // Initialize call agent
        }
    }

    func startCall() {
        // Ask permissions
        AVAudioSession.sharedInstance().requestRecordPermission { (granted) in
            if granted {
                // Add start call logic
            }
        }
    }

    func endCall() {
        // Add end call logic
    }
}

Model objek

Kelas dan antarmuka berikut menghandel beberapa fitur utama Azure Communication Services Calling SDK:

Nama Deskripsi
CallClient CallClient adalah titik masuk utama ke SDK Panggilan.
CallAgent CallAgent digunakan untuk memulai dan mengelola panggilan.
CommunicationTokenCredential CommunicationTokenCredential digunakan sebagai kredensial token untuk membuat instans CallAgent.
CommunicationUserIdentifier CommunicationUserIdentifier digunakan untuk mewakili identitas pengguna, yang dapat menjadi salah satu opsi berikut: CommunicationUserIdentifier,PhoneNumberIdentifier atauCallingApplication.

Mengautentikasi klien

Menginisialisasi CallAgent instans dengan Token Akses Pengguna, yang memungkinkan kami melakukan dan menerima panggilan.

Dalam kode berikut, Anda perlu mengganti <USER ACCESS TOKEN> dengan token akses pengguna yang valid untuk sumber daya Anda. Lihat dokumentasi token akses pengguna jika Anda belum memiliki token yang tersedia.

Tambahkan kode berikut ke panggilan balik onAppear di ContentView.swift:

var userCredential: CommunicationTokenCredential?
do {
    userCredential = try CommunicationTokenCredential(token: "<USER ACCESS TOKEN>")
} catch {
    print("ERROR: It was not possible to create user credential.")
    return
}

self.callClient = CallClient()

// Creates the call agent
self.callClient?.createCallAgent(userCredential: userCredential!) { (agent, error) in
    if error != nil {
        print("ERROR: It was not possible to create a call agent.")
        return
    }
    else {
        self.callAgent = agent
        print("Call agent successfully created.")
    }
}

Memulai panggilan

Metode startCall ini diatur sebagai tindakan yang dilakukan saat tombol Mulai Panggilan diketuk. Perbarui implementasi untuk memulai panggilan dengan ASACallAgent:

func startCall()
{
    // Ask permissions
    AVAudioSession.sharedInstance().requestRecordPermission { (granted) in
        if granted {
            // start call logic
            let callees:[CommunicationIdentifier] = [CommunicationUserIdentifier(self.callee)]
            self.callAgent?.startCall(participants: callees, options: StartCallOptions()) { (call, error) in
                if (error == nil) {
                    self.call = call
                } else {
                    print("Failed to get call object")
                }
            }
        }
    }
}

Anda juga dapat menggunakan properti di StartCallOptions untuk mengatur opsi awal untuk panggilan (yaitu, memungkinkan memulai panggilan dengan mikrofon dibisukan).

Mengakhiri panggilan

Terapkan metode endCall untuk mengakhiri panggilan saat ini saat tombol Akhiri Panggilan diketuk.

func endCall()
{    
    self.call!.hangUp(options: HangUpOptions()) { (error) in
        if (error != nil) {
            print("ERROR: It was not possible to hangup the call.")
        }
    }
}

Menjalankan kode

Anda dapat membuat dan menjalankan aplikasi di simulator iOS dengan memilih Eksekusi Produk>atau dengan menggunakan pintasan keyboard (⌘-R).

Final look and feel of the quick start app

Anda dapat melakukan panggilan VOIP keluar dengan memberikan ID pengguna di bidang teks dan mengetuk tombol Mulai Panggilan. Memanggil 8:echo123 menghubungkan Anda dengan bot echo, fitur ini bagus untuk memulai dan memverifikasi perangkat audio Anda berfungsi.

Catatan

Saat Anda melakukan panggilan untuk pertama kalinya, sistem akan meminta akses ke mikrofon kepada Anda. Dalam aplikasi produksi, Anda harus menggunakan API AVAudioSession untuk memeriksa status izin dan memperbarui perilaku aplikasi dengan baik saat izin tidak diberikan.

Dalam mulai cepat ini, Anda mempelajari cara memulai panggilan menggunakan SDK Panggilan Azure Communication Services untuk Unity.

Anda dapat mengunduh aplikasi sampel dari GitHub.

Prasyarat

Untuk menyelesaikan tutorial ini, Anda memerlukan prasyarat berikut:

Menyiapkan

Membuat proyek

Di Unity Hub, buat proyek baru dengan templat 2D Core untuk menyiapkan proyek unity.

Screenshot showing the New Unity Project window within Unity Editor.

Pasang paket

Ada dua cara untuk menginstal Azure Communication Calling SDK untuk Unity.

  1. Unduh SDK dari umpan npm publik dan impor di manajer paket Editor Unity, yang ditemukan di bawah tab Windows.

  2. Unduh Mixed Reality Feature Tool dari Microsoft dan instal melalui pengelola alat realitas campuran.

Menyiapkan kerangka kerja aplikasi

Kita perlu mengonfigurasi tata letak dasar untuk melampirkan logika. Untuk melakukan panggilan keluar, kita perlu TextBox memberikan ID Pengguna dari penerima panggilan. Kita juga butuh tombol Start/Join call dan tombol Hang up.

Buat adegan baru yang disebut Main dalam proyek Anda.

Main.unity Buka file dan ganti konten dengan implementasi berikut:

Kode Main.Unity

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Buat skrip yang disebut AppManager.cs dan tautkan ke objek AppManager di Editor Unity. Ganti konten dengan implementasi berikut:

using Azure.Communication.Calling.UnityClient;
using System.Runtime.InteropServices.ComTypes;
using System;
using UnityEngine;
using System.Linq;
using UnityEngine.UI;
using UnityEngine.Video;
using TMPro;

/// <summary>
/// A singleton which hosts an Azure Communication calling client. This calling client 
/// is then shared across the application.
/// </summary>

public class AppManager : MonoBehaviour
{
    private CallClient callClient;
    private CallAgent callAgent;
    private DeviceManager deviceManager;
    private Call call;
    private LocalOutgoingAudioStream micStream;

    public string CalleeIdentity { get; set; }

    public TMP_Text callStatus;

    public static AppManager Instance;

    private void Awake()
    {
        // start of new code
        if (Instance != null)
        {
            Destroy(gameObject);
            return;
        }
        // end of new code

        callClient = new CallClient();

        Instance = this;
        DontDestroyOnLoad(gameObject);

        InitCallAgentAndDeviceManagerAsync();
    }

    public async void CallButton_Click()
    {
        // Start a call
    }

    public async void HangupButton_Click()
    {
        // Hang up a call
    }

    private async void OnIncomingCallAsync(object sender, IncomingCallReceivedEventArgs args)
    {
        // Handle incoming call event
    }

    private void OnStateChangedAsync(object sender, PropertyChangedEventArgs args)
    {
        // Handle connected and disconnected state change of a call
    }

    //Used For Updating the UI
    private void Update()
    {
        if (call != null)
        {
            switch (call.State)
            {
                case CallState.Connected:
                    if (callStatus.text != "Connected")
                        callStatus.text = "Connected";
                    break;
                case CallState.Disconnected:
                    if (callStatus.text != "Disconnected")
                        callStatus.text = "Disconnected";
                    break;
            }
        }
    }
}

Di GameObject yang disebut AppManager, seret skrip yang baru dibuat ke dalam komponen skripnya. Selain itu, seret objek teks Status ke bidang teks Status Panggilan untuk mengaktifkan pembaruan UI status Panggilan.

Model objek

Tabel berikutnya mencantumkan kelas dan antarmuka menangani beberapa fitur utama SDK Panggilan Azure Communication Services:

Nama Deskripsi
CallClient CallClient adalah titik masuk utama ke SDK Panggilan.
CallAgent CallAgent digunakan untuk memulai dan mengelola panggilan.
Call CommunicationCall digunakan untuk mengelola panggilan yang sedang berlangsung.
CallTokenCredential CallTokenCredential digunakan sebagai kredensial token untuk membuat instans CallAgent.
CallIdentifier CallIdentifier digunakan untuk mewakili identitas pengguna, yang dapat menjadi salah satu opsi berikut: UserCallIdentifier, PhoneNumberCallIdentifier dll.

Mengautentikasi klien

Menginisialisasi CallAgent instans dengan Token Akses Pengguna yang memungkinkan kami melakukan dan menerima panggilan, dan secara opsional mendapatkan instans DeviceManager untuk mengkueri konfigurasi perangkat klien.

Dalam kode, ganti <AUTHENTICATION_TOKEN> dengan Token Akses Pengguna. Lihat dokumentasi token akses pengguna jika Anda belum memiliki token yang tersedia.

Tambahkan InitCallAgentAndDeviceManagerAsync fungsi, yang mem-bootstrap SDK. Pembantu ini dapat disesuaikan untuk memenuhi persyaratan aplikasi Anda.

private async void InitCallAgentAndDeviceManagerAsync()
{

    deviceManager = await callClient.GetDeviceManager();

    var tokenCredential = new CallTokenCredential(<AUTHENTICATION_TOKEN>);

    var callAgentOptions = new CallAgentOptions()
    {
        DisplayName = $"{Environment.MachineName}/{Environment.UserName}",
    };

    callAgent = await callClient.CreateCallAgent(tokenCredential, callAgentOptions);
    callAgent.IncomingCallReceived += OnIncomingCallAsync;
}

Memulai panggilan

StartCallOptions Setelah objek diperoleh, CallAgent dapat digunakan untuk memulai panggilan Azure Communication Services:

public async void CallButton_Click()
{
    var startCallOptions = new StartCallOptions();
    startCallOptions = new StartCallOptions();

    var callee = new UserCallIdentifier(CalleeIdentity);

    call = await callAgent.StartCallAsync(new CallIdentifier[] { callee }, startCallOptions);
    // Set up handler for call StateChanged event
    call.StateChanged += OnStateChangedAsync;
}

Mengakhiri panggilan

Akhiri panggilan saat ini ketika tombol Hang up diklik. Tambahkan implementasi ke HangupButton_Click untuk mengakhiri panggilan, dan hentikan pratinjau dan streaming video.

public async void HangupButton_Click()
{
    if (call != null)
    {
        try
        {
            await call.HangUpAsync(new HangUpOptions() { ForEveryone = false });
        }
        catch (Exception ex)
        {
        }
    }
}

Menerima panggilan masuk

IncomingCallReceived sink peristiwa disiapkan di pembantu bootstrap InitCallAgentAndDeviceManagerAsyncSDK .

callAgent.IncomingCallReceived += OnIncomingCallAsync;

Aplikasi memiliki kesempatan untuk mengonfigurasi bagaimana panggilan masuk harus diterima, seperti jenis streaming video dan audio.

private async void OnIncomingCallAsync(object sender, IncomingCallReceivedEventArgs args)
{
    var incomingCall = args.IncomingCall;

    var acceptCallOptions = new AcceptCallOptions()
    {
        IncomingVideoOptions = new IncomingVideoOptions()
        {
            StreamKind = VideoStreamKind.RemoteIncoming
        }
    };

    call = await incomingCall.AcceptAsync(acceptCallOptions);
    // Set up handler for incoming call StateChanged event
    call.StateChanged += OnStateChangedAsync;
}

Memantau dan merespons peristiwa perubahan status panggilan

StateChanged peristiwa pada Call objek diaktifkan ketika transaksi panggilan yang sedang berlangsung dari satu status ke status lainnya. Aplikasi ditawarkan peluang untuk mencerminkan perubahan status pada UI atau menyisipkan logika bisnis.

private async void OnStateChangedAsync(object sender, PropertyChangedEventArgs args)
{
    var call = sender as Call;

    if (call != null)
    {
        var state = call.State;
        switch (state)
        {
            case CallState.Connected:
                {
                    await call.StartAudioAsync(micStream);

                    break;
                }
            case CallState.Disconnected:
                {
                    call.StateChanged -= OnStateChangedAsync;

                    call.Dispose();

                    break;
                }
            default: break;
        }
    }
}

Menjalankan kode

Anda dapat membangun dan menjalankan kode di Editor Unity atau perangkat yang menggunakan Unity.

Anda dapat melakukan panggilan keluar dengan memberikan ID pengguna di bidang teks dan mengklik tombol Start Call/Join. Memanggil 8:echo123 menghubungkan Anda dengan bot echo, fitur ini bagus untuk memulai dan memverifikasi perangkat audio Anda berfungsi.

Screenshot showing running the Unity quickstart app.

Membersihkan sumber daya

Jika ingin membersihkan dan menghapus langganan Azure Communication Services, Anda bisa menghapus sumber daya atau grup sumber daya. Menghapus grup sumber daya juga menghapus sumber daya apa pun yang terkait dengannya. Pelajari selengkapnya tentang membersihkan sumber daya.

Langkah berikutnya

Untuk informasi lebih lanjut, baca artikel berikut: