所以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),即使已经有一段时间了,我也会发布它:
FCM 通知(firebase 云消息通知)只需要在通知中发送“数据”即可。所以通知的 JSON 结构中没有 Notification 对象,只有数据。这样,通知由您应用的 FirebaseMessagingService.java 类处理。请详细阅读以下内容以了解如何处理 2 种 FCM 通知类型。
https://firebase.google.com/docs/cloud-messaging/android/receive
https://firebase.google.com/docs/cloud-messaging/concept-options#notifications_and_data_messages
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
Intent intent = new Intent(this, VideoCallActivity.class);
intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
intent.addFlags(Intent.FLAG_ACTIVITY_SINGLE_TOP);
getApplicationContext().startActivity(intent);
在 VideoCall 活动中,确保在 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();
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>
可选:要使电话响铃和振动:
// 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