Android Twilio 视频通话，唤醒应用程序并带到前台

我正在尝试使用 Twilio Video Call 提供本机视频通话体验。这是场景：

1. 人 AAA 称人 BBB。
2. BBB 没有打开应用程序，在后台或前台，应用程序处于终止状态，手机甚至可能被锁定。
3. 当来自 AAA 的电话到达时，应用程序将打开，并显示带有接听按钮的视频用户界面。就像 WhatsApp、Google Duo、Skype 一样...

我们已部署 FCM，并且正在收到推送通知。尝试在来电时打开视频通话接听按钮，而不单击通知，就像在 Whatsapp、Google Duo 中一样...（在 Android 手机中）

我们尝试让一个服务在后台运行，并在其中打开一个套接字。套接字将侦听传入呼叫，并在传入呼叫事件发送到套接字时打开 VideoCallActivity。

这是我们最好的选择，但到目前为止还没有成功。您将如何实现此功能？

因此，我们已经找到了这个解决方案（当通知到达时，将应用程序带到前台），尽管已经有一段时间了，但我还是将其发布：

1. FCM通知（firebase云消息通知）只需要发送通知中的“数据”。所以通知的JSON结构中没有Notification对象，只有数据。这样，通知将由应用的 FirebaseMessagingService.java 类处理。请详细阅读以下内容，了解如何处理 2 种 FCM 通知类型。https://firebase.google.com/docs/cloud-messaging/android/receive https://firebase.google.com/docs/cloud-messaging/android/receive https://firebase.google.com/docs/cloud-messaging/concept-options#notifications_and_data_messages https://firebase.google.com/docs/cloud-messaging/concept-options#notifications_and_data_messages

2. 在 FirebaseMessagingService.java 类中，使用 Intent 启动 VideoCall 活动。不要忘记将此服务添加到 Manifest.xml 中

            Intent intent = new Intent(this, VideoCallActivity.class);
            intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
            intent.addFlags(Intent.FLAG_ACTIVITY_SINGLE_TOP);
            getApplicationContext().startActivity(intent);
   

3. 在 VideoCall 活动中，确保 onCreate() 开头有以下代码：

    // These flags ensure that the activity can be launched when the screen is locked.
    Window window = getWindow();
    window.addFlags(WindowManager.LayoutParams.FLAG_SHOW_WHEN_LOCKED
            | WindowManager.LayoutParams.FLAG_TURN_SCREEN_ON
            | WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON);
   
    // to wake up the screen
    PowerManager pm = (PowerManager) getApplicationContext().getSystemService(Context.POWER_SERVICE);
    PowerManager.WakeLock wakeLock = pm.newWakeLock((PowerManager.SCREEN_BRIGHT_WAKE_LOCK | PowerManager.FULL_WAKE_LOCK | PowerManager.ACQUIRE_CAUSES_WAKEUP), "TAG");
    wakeLock.acquire();
   
    // to release the screen lock
    KeyguardManager keyguardManager = (KeyguardManager) getApplicationContext().getSystemService(Context.KEYGUARD_SERVICE);
    KeyguardManager.KeyguardLock keyguardLock = keyguardManager.newKeyguardLock("TAG");
    keyguardLock.disableKeyguard();
   

4. 使用适当的意图过滤器将 VideoCallActivity 添加到 Manifest.xml：

   <!-- Video Call -->
   <activity
       android:name=".ui.activities.video_call.VideoCallActivity"
       android:launchMode="singleTop"
       android:screenOrientation="portrait"
       android:theme="@style/AppTheme.NoActionBar">
       <intent-filter>
           <!-- Note: these actions are notification actions -->
           <action android:name="VIDEO_CALLING" />
           <category android:name="android.intent.category.DEFAULT" />
       </intent-filter>
   </activity>
   
   

选修的： 使手机响铃和振动：

// For Incoming Call
// 1. declare
private MediaPlayer incomingCallMediaPlayer;
// .2 in onCreate, if I'm the person that's calling, ring the phone 
incomingCallMediaPlayer = MediaPlayer.create(this, R.raw.incoming);
incomingCallMediaPlayer.setLooping(true);
incomingCallMediaPlayer.start();
// 3. when I pick up, stop the player
incomingCallMediaPlayer.stop();

// I play R.raw.incoming if I'm being called.
// I play R.raw.outgoing when I'm calling.
// I understand if I'm the one calling from the number of participants in the "room" (this is a video call terminology) and bypassing in a variable through the intent

// For Outgoing Call
// 1. declare
private MediaPlayer callingMediaPlayer;

// 2. in onCreate, if I'm being called, ring the phone
callingMediaPlayer = MediaPlayer.create(this, R.raw.outgoing);
callingMediaPlayer.setLooping(true);
callingMediaPlayer.start();

// 3. when another "participant" (this is a video call terminology) joins the "room" I stop playing the sound
callingMediaPlayer.stop();

// to Vibrate, add the code with the media players and stop vibrate with media players
//https://stackoverflow.com/questions/13950338/how-to-make-an-android-device-vibrate