编辑：

Question

无论应用程序当前是否正在运行，我都需要能够接收传入的Twilio调用。

用户启动应用程序并登录我们的服务器后，我将启动下面显示的服务。

服务以粘性方式启动，并且在任何时候都没有调用stopService或stopSelf等，因此应用程序关闭后服务仍应运行。

当应用程序运行时，IncomingCallActivity启动正常以响应Twilio调用。
如果应用程序在后台，IncomingCallActivity仍然可以正常响应Twilio通话。
如果应用已关闭，IncomingCallActivity将不再启动以响应Twilio通话。

如果应用已关闭，为什么没有IncomingCallActivity启动？

public class CallService extends Service implements Twilio.InitListener, DeviceListener, ConnectionListener {

    private Device mDevice;
    private Connection mConnection;

    @Override
    public void onCreate() {
        super.onCreate();

        registerBroadcastReceiver();
    }

    @Override
    public int onStartCommand(Intent intent, int flags, int startId) {

        // Initialize the Twilio SDK if required
        if (!Twilio.isInitialized()) {
            Twilio.initialize(getApplicationContext(), this);
        } else {
            getCapabilityToken("CallService", getUser());
        }

        ...

        return START_STICKY;
    }

    @Nullable
    @Override
    public IBinder onBind(Intent intent) {
        return null;
    }

    @Override
    public void onDestroy() {

        // Unregister broadcast receiver
        final LocalBroadcastManager localBroadcastManager = LocalBroadcastManager.getInstance(this);
        localBroadcastManager.unregisterReceiver(mBroadcastReceiver);

        super.onDestroy();
    }

    @Override
    public void onInitialized() {
        getCapabilityToken("CallService", getUser());
    }

    @Override
    public void onError(Exception e) {

    }

    private void getCapabilityToken(String string, User user) {
        // Request the capability token from the server.
        ...
    }

    protected void setCapabilityToken() {

        // Create device using the capability token
        mDevice = Twilio.createDevice(getUser().capabilityToken, this);

        // Set pending intent for Twilio device    
        Intent intent = new Intent(this, IncomingCallActivity.class);
        intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
        PendingIntent pendingIntent = PendingIntent.getActivity(this, 0, intent, PendingIntent.FLAG_UPDATE_CURRENT);
        mDevice.setIncomingIntent(pendingIntent);

        // Broadcast that CallService is ready, to any registered receivers
        Intent broadcastIntent = new Intent(App.ACTION__TWILIO_SERVICE_READY);
        LocalBroadcastManager.getInstance(this).sendBroadcast(broadcastIntent);
    }

    public void connect() {
        mConnection = mDevice.connect(null /* parameters */, null /* ConnectionListener */);
        if (mConnection == null) {
            ...
        } else {
            ...
        }
    }

    private void answerCall(Device device, Connection connection) {

        if (mConnection != null) {
            mConnection.disconnect();
        }

        mConnection = connection;
        mConnection.accept();
    }

    /**
     * BroadcastReceiver
     */
    private BroadcastReceiver mBroadcastReceiver = new BroadcastReceiver() {

        @Override
        public void onReceive(Context context, Intent intent) {

            final String action = intent.getAction();

            switch (action) {

                case App.ACTION__CAPABILITY_TOKEN_OBTAINED:
                    setCapabilityToken();
                    break;

                case App.ACTION__CONNECT:
                    connect();
                    break;

            }
        }
    };

    @Override
    public void onStartListening(Device device) {

    }

    @Override
    public void onStopListening(Device device) {

    }

    @Override
    public void onStopListening(Device device, int i, String s) {

    }

    @Override
    public boolean receivePresenceEvents(Device device) {
        return false;
    }

    @Override
    public void onPresenceChanged(Device device, PresenceEvent presenceEvent) {

    }

    @Override
    public void onConnecting(Connection connection) {

    }

    @Override
    public void onConnected(Connection connection) {

    }

    @Override
    public void onDisconnected(Connection connection) {

    }

    @Override
    public void onDisconnected(Connection connection, int i, String s) {

    }
}

编辑：

为了澄清我如何宣布我的服务等，这是我的AndroidManifest：

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

    <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.READ_CONTACTS" />
    <uses-permission android:name="android.permission.MODIFY_AUDIO_SETTINGS"/>
    <uses-permission android:name="android.permission.RECORD_AUDIO" />
    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />


    <application
        android:name=".App"
        android:allowBackup="true"
        android:icon="@mipmap/ic_launcher"
        android:label="@string/app_name"
        android:supportsRtl="true"
        android:theme="@style/AppTheme">

        <activity
            android:name=".MainActivity"
            android:screenOrientation="portrait">

            <intent-filter>
                <action android:name="android.intent.action.MAIN"/>
                <category android:name="android.intent.category.LAUNCHER"/>
            </intent-filter>

        </activity>

        <activity
            android:name=".IncomingCallActivity"
            android:screenOrientation="portrait"/>

        <service android:name=".services.CallService"/>
        <service android:name=".services.DownloadService"/>

        <service
            android:name="com.twilio.client.TwilioClientService"
            android:exported="false"
            android:stopWithTask="false" />

        <meta-data
            ... />

        ...

    </application>

</manifest>

Answer 1

如果您使用twilio演示而不是需要在Androidmenifest中提供服务

<service android:name="com.twilio.client.TwilioClientService" android:exported="false" android:stopWithTask="true"/>

它为我工作。

twilio provide他们自己的服务。所以你需要在menifest上声明它。所以不需要创建新的服务。

jusr删除此服务并将其放在android menifest.it将在app关闭后自动启动。

Answer 2

它对我的工作无需额外服务

<service android:name="com.twilio.client.TwilioClientService" android:exported="false" android:stopWithTask="false"/>

但如果令牌已过期，我们如何处理？那时IncomingCallActivity不再开始

如果应用已关闭，则粘性服务中定义的Twilio设备无法启动活动

编辑：

2 个答案: