我已在Android应用中实施了FCM推送通知。 我在数据有效负载中获得了所有通知JSON。我在api上“没有添加”'通知'标签。因此，在所有州（前景/后台/被杀）中，我仅在数据有效负载中获得通知。
在非定制的OS手机上运行正常，例如Moto，Google等，在所有状态下，当应用程序是前景/背景/杀死时。但问题是当我在自定义的OS手机上进行测试时，例如 Oppo ， Vivo 或 MIUI ，只有当应用程序位于Foreground时才会收到通知或背景（应用程序在内存中），当App被“杀死”（不在内存中）时未到达/出现。
我该怎么办？
无论如何，谢谢你的时间。
public class MyFirebaseMessagingService extends FirebaseMessagingService{
private static final String TAG = "MyFirebaseMsgService";
/**
* Called when message is received.
*
* @param remoteMessage Object representing the message received from Firebase Cloud Messaging.
*/
// [START receive_message]
@Override
public void onMessageReceived(RemoteMessage remoteMessage) {
// [START_EXCLUDE]
// There are two types of messages data messages and notification messages. Data messages are handled
// here in onMessageReceived whether the app is in the foreground or background. Data messages are the type
// traditionally used with GCM. Notification messages are only received here in onMessageReceived when the app
// is in the foreground. When the app is in the background an automatically generated notification is displayed.
// When the user taps on the notification they are returned to the app. Messages containing both notification
// and data payloads are treated as notification messages. The Firebase console always sends notification
// [END_EXCLUDE]
// TODO(developer): Handle FCM messages here.
Log.e(TAG, "From: " + remoteMessage.getFrom());
// Check if message contains a data payload.
if (remoteMessage.getData().size() > 0)
{
Log.d(TAG, "Message data payload: " + remoteMessage.getData());
if (/* Check if data needs to be processed by long running job */ true) {
// For long-running tasks (10 seconds or more) use Firebase Job Dispatcher.
scheduleJob();
} else {
// Handle message within 10 seconds
handleNow();
}
if (remoteMessage.getNotification()!=null)
sendNotification(remoteMessage.getNotification().getBody());
else
sendNotification("Body");
}
// Check if message contains a notification payload.
if (remoteMessage.getNotification() != null)
{
Log.d(TAG, "Message Notification Body: " + remoteMessage.getNotification().getBody());
if (remoteMessage.getNotification()!=null)
sendNotification(remoteMessage.getNotification().getBody());
else
sendNotification("Body");
}
// Also if you intend on generating your own notifications as a result of a received FCM
// message, here is where that should be initiated. See sendNotification method below.
}
// [END receive_message]
/**
* Schedule a job using FirebaseJobDispatcher.
*/
private void scheduleJob() {
// [START dispatch_job]
FirebaseJobDispatcher dispatcher = new FirebaseJobDispatcher(new GooglePlayDriver(this));
Job myJob = dispatcher.newJobBuilder()
.setService(MyJobService.class)
.setTag("my-job-tag")
.build();
dispatcher.schedule(myJob);
// [END dispatch_job]
}
/**
* Handle time allotted to BroadcastReceivers.
*/
private void handleNow() {
Log.d(TAG, "Short lived task is done.");
}
/**
* Create and show a simple notification containing the received FCM message.
*
* @param messageBody FCM message body received.
*/
private void sendNotification(String messageBody)
{
Intent intent = new Intent(this, MainActivity.class);
intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
PendingIntent pendingIntent = PendingIntent.getActivity(this, 0 /* Request code */, intent,
PendingIntent.FLAG_ONE_SHOT);
String channelId = getString(R.string.default_notification_channel_id);
Uri defaultSoundUri= RingtoneManager.getDefaultUri(RingtoneManager.TYPE_NOTIFICATION);
NotificationCompat.Builder notificationBuilder =
new NotificationCompat.Builder(this, channelId)
.setSmallIcon(R.drawable.ic_launcher_background)
.setContentTitle("FCM Message")
.setContentText(messageBody)
.setAutoCancel(true)
.setSound(defaultSoundUri)
.setContentIntent(pendingIntent);
NotificationManager notificationManager =
(NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
// Since android Oreo notification channel is needed.
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
NotificationChannel channel = new NotificationChannel(channelId,
"Channel human readable title",
NotificationManager.IMPORTANCE_DEFAULT);
if (notificationManager != null) {
notificationManager.createNotificationChannel(channel);
}
}
if (notificationManager != null) {
notificationManager.notify(0 /* ID of notification */, notificationBuilder.build());
}
}
}
我的AndroidManifest.xml文件如下：
<!-- [START firebase_iid_service] -->
<service
android:name=".Firebase.FirebaseId">
<intent-filter>
<action android:name="com.google.firebase.INSTANCE_ID_EVENT" />
</intent-filter>
</service>
<service
android:name="Firebase.MyFirebaseMessagingService"
android:stopWithTask="false">
<intent-filter>
<action android:name="com.google.firebase.MESSAGING_EVENT" />
</intent-filter>
</service>
<!-- [END firebase_iid_service] -->
<!--
Set custom default icon. This is used when no icon is set for incoming notification messages.
-->
<meta-data
android:name="com.google.firebase.messaging.default_notification_icon"
android:resource="@drawable/ic_launcher_background" />
<!--
Set color used with incoming notification messages. This is used when no color is set for the incoming
notification message.
-->
<meta-data
android:name="com.google.firebase.messaging.default_notification_color"
android:resource="@color/colorAccent" />
<!-- [START fcm_default_channel] -->
<meta-data
android:name="com.google.firebase.messaging.default_notification_channel_id"
android:value="@string/default_notification_channel_id" />
<!-- [END fcm_default_channel] -->
答案 0 :(得分：1)
我找到了解决这个问题的方法。为您的应用程序编写一个自定义服务，该服务在后台持续运行，并写入一个广播接收器，以便在服务终止后重新启动服务。这对我来说很好。我在Vivo，Oppo，Redmi手机上测试了这个。它正在运作！
我的服务代码如下 -
public class MyService extends Service
{
private static final String TAG = "MyService";
@Override
public void onStart(Intent intent, int startId)
{
// TODO Auto-generated method stub
super.onStart(intent, startId);
}
@Override
public boolean onUnbind(Intent intent) {
return super.onUnbind(intent);
}
@Override
public void onCreate()
{
super.onCreate();
}
@Override
public int onStartCommand(Intent intent, int flags, int startId)
{
//call to onTaskRemoved
onTaskRemoved(intent);
//return super.onStartCommand(intent, flags, startId);
Toast.makeText(this, "Service Started!", Toast.LENGTH_SHORT).show();
return START_NOT_STICKY;
}
@Nullable
@Override
public IBinder onBind(Intent intent)
{
return null;
}
@Override
public void onDestroy()
{
Toast.makeText(this, "Service Destroyed!", Toast.LENGTH_SHORT).show();
Intent intent = new Intent("com.myapp.startservice");
//Intent intent = new Intent("android.intent.action.BOOT_COMPLETED");
intent.putExtra("yourvalue", "torestore");
sendBroadcast(intent);
super.onDestroy();
}
@Override public void onTaskRemoved(Intent rootIntent)
{
Log.e("onTaskRemoved", "Called!");
//thread = new Thread(this);
//startThread();
/*Intent alarm = new Intent(this.getApplicationContext(), MyBroadCastReceiver.class);
boolean alarmRunning = (PendingIntent.getBroadcast(this.getApplicationContext(), 0, alarm, PendingIntent.FLAG_NO_CREATE) != null);
//if(!alarmRunning)
{
PendingIntent pendingIntent = PendingIntent.getBroadcast(this.getApplicationContext(), 0, alarm, 0);
AlarmManager alarmManager = (AlarmManager) getSystemService(Context.ALARM_SERVICE);
if (alarmManager != null) {
alarmManager.setRepeating(AlarmManager.ELAPSED_REALTIME_WAKEUP, SystemClock.elapsedRealtime(), 10000, pendingIntent);
}
}*/
//send broadcast to your BroadcastReciever
Intent intent = new Intent("com.myapp.startservice"); //unique String to uniquely identify your broadcastreceiver
//Intent intent = new Intent("android.intent.action.BOOT_COMPLETED");
intent.putExtra("yourvalue", "torestore");
sendBroadcast(intent);
//intent to restart your service.
Intent restartServiceIntent = new Intent(getApplicationContext(), this.getClass());
restartServiceIntent.setPackage(getPackageName());
PendingIntent restartServicePendingIntent = PendingIntent.getService(getApplicationContext(), 1, restartServiceIntent, PendingIntent.FLAG_ONE_SHOT);
AlarmManager alarmService = (AlarmManager) getApplicationContext().getSystemService(Context.ALARM_SERVICE);
if (alarmService != null) {
alarmService.set(
AlarmManager.ELAPSED_REALTIME,
SystemClock.elapsedRealtime() + 1000,
restartServicePendingIntent);
}
super.onTaskRemoved(rootIntent);
}}
我的BroadcastReceiver如下 -
public class MyBroadCastReceiver extends BroadcastReceiver
{
@Override
public void onReceive(Context context, Intent intent)
{
Log.e("MyBroadCastReceiver", "onReceive");
//if ("android.intent.action.BOOT_COMPLETED".equals(intent.getAction()))
{
Intent service = new Intent(context, MyService.class);
context.startService(service);
Log.e("BootCompleteReceiver", " __________BootCompleteReceiver _________");
}
}}
我的AndroidManifest.xml文件如下 -
<!-- My Service -->
<service
android:name=".Service.MyService"
android:exported="false"
android:stopWithTask="false" />
<!-- My Broadcast Receiver -->
<receiver
android:name=".Service.MyBroadCastReceiver"
android:enabled="true"
android:exported="false">
<intent-filter>
<action android:name="com.myapp.startservice" />
<action android:name="android.intent.action.BOOT_COMPLETED"/>
<action android:name="android.intent.action.ACTION_EXTERNAL_APPLICATIONS_AVAILABLE"/>
<category android:name="android.intent.category.DEFAULT"/>
</intent-filter>
</receiver>
我的MainActivity.java文件代码启动服务---
public class MainActivity extends AppCompatActivity
{
Button btnStopService;
@Override
protected void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
btnStopService = findViewById(R.id.btnStopService);
//get FirebaseToken
getToken();
//start Service
startService();
btnStopService.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
Intent intent = new Intent(MainActivity.this, MyService.class);
stopService(intent);
}
});
}
private void getToken()
{
FirebaseId firebaseId=new FirebaseId();
String token_firebase=firebaseId.getFireBaseToken();
}
private void startService()
{
Intent myIntent = new Intent(this, MyService.class);
PendingIntent pendingIntent = PendingIntent.getService(this, 0, myIntent, 0);
Log.e("TAG", "++++++++++222222++++++++");
AlarmManager alarmManager = (AlarmManager)getSystemService(ALARM_SERVICE);
Calendar calendar = Calendar.getInstance();
// calendar.setTimeInMillis(System.currentTimeMillis());
//calendar.add(Calendar.SECOND, 10);
if (alarmManager != null) {
alarmManager.set(AlarmManager.RTC_WAKEUP, calendar.getTimeInMillis(), pendingIntent);
}
Toast.makeText(this, "Start Alarm", Toast.LENGTH_LONG).show();
}
private void s()
{
Intent intent = new Intent(this, MyService.class);
startService(intent);
}}
答案 1 :(得分：0)
这是一个古老的故事，有MIUI，Vivo等自定义操作系统提供商
他们对电池优化政策非常严格，因此，当应用关闭时，他们甚至不允许重新启动粘性服务，这是您遇到此问题的主要原因。
虽然您的代码中没有任何内容可以帮助您的用户，但您可以将他们带到Security Center并要求他们启用auto-start功能。
要做到这一点，你必须添加这段代码：
try {
Intent intent = new Intent();
String manufacturer = android.os.Build.MANUFACTURER;
if ("xiaomi".equalsIgnoreCase(manufacturer)) {
intent.setComponent(new ComponentName("com.miui.securitycenter", "com.miui.permcenter.autostart.AutoStartManagementActivity"));
} else if ("oppo".equalsIgnoreCase(manufacturer)) {
intent.setComponent(new ComponentName("com.coloros.safecenter", "com.coloros.safecenter.permission.startup.StartupAppListActivity"));
} else if ("vivo".equalsIgnoreCase(manufacturer)) {
intent.setComponent(new ComponentName("com.vivo.permissionmanager", "com.vivo.permissionmanager.activity.BgStartUpManagerActivity"));
} else if("oneplus".equalsIgnoreCase(manufacturer)) {
intent.setComponent(new ComponentName("com.oneplus.security", "com.oneplus.security.chainlaunch.view.ChainLaunchAppListActivity")); }
List<ResolveInfo> list = context.getPackageManager().queryIntentActivities(intent, PackageManager.MATCH_DEFAULT_ONLY);
if (list.size() > 0) {
context.startActivity(intent);
}
} catch (Exception e) {
Crashlytics.logException(e);
}
此应用会将用户带到安全中心，您必须要求他们为您的应用启用自动启动功能。 现在像whatsapp和Instagram这样的应用程序没有这样的问题，但我不清楚这个问题的原因，正如我在我的设备上看到的那样，默认情况下会为这些应用程序启用自动启动。