Android，FireBase云消息传递，（FCM）

Question

我正在使用FCM进行数据消息传递，并且可以处理前景和后台通知，但在手机重新启动或应用程序被终止时无法接收它们（任务通过刷新在任务管理器中）。

Answer 1

清单：

<?xml version="1.0" encoding="utf-8"?> 
    <manifest xmlns:android="http://schemas.android.com/apk/res/android" 
     package="com.example.tadad.firebasetestDOUBLE"> 
     <uses-permission android:name="android.permission.INTERNET"/> 
     <uses-permission android:name="android.permission.READ_PHONE_STATE" /> 
     <uses-permission android:name="com.google.android.c2dm.permission.RECEIVE" /> 
     <uses-permission android:name="android.permission.WAKE_LOCK" /> 

     <uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED" /> 

     <application 
      android:name="com.example.tadad.firebasetestDOUBLE.AndroidApplication" 
      android:allowBackup="true" 
      android:icon="@mipmap/ic_launcher" 
      android:label="@string/app_name" 
      android:supportsRtl="true" 
      android:theme="@style/AppTheme"> 
      <activity 
       android:name="com.example.tadad.firebasetestDOUBLE.MainActivity" 
       android:label="@string/app_name" 
       android:theme="@style/AppTheme.NoActionBar"> 
       <intent-filter> 
        <action android:name="android.intent.action.MAIN" /> 

        <category android:name="android.intent.category.LAUNCHER" /> 
       </intent-filter> 
      </activity> 
      <!-- Notification --> 
      <service 
       android:name="com.example.tadad.firebasetestDOUBLE.notification.SomeInstanceIDListenerService"> 
       <intent-filter> 
        <action android:name="com.google.firebase.INSTANCE_ID_EVENT" /> 
       </intent-filter> 
      </service> 
      <service 
       android:name="com.example.tadad.firebasetestDOUBLE.notification.SomeFirebaseMessagingService"> 
       <intent-filter> 
        <action android:name="com.google.firebase.MESSAGING_EVENT" /> 
       </intent-filter> 
      </service> 
     </application> 

    </manifest> 

代码：

public class SomeFirebaseMessagingService extends FirebaseMessagingService { 

    @Override 
    public void onMessageReceived(RemoteMessage remoteMessage) { 
     int a = 4; 

     sendNotification("Smth", "Receive please!"); 

    } 
} 
public class SomeInstanceIDListenerService extends FirebaseInstanceIdService { 

    @Override 
    public void onTokenRefresh() { 
     String refreshedToken = FirebaseInstanceId.getInstance().getToken(); 
     sendRegistrationToServer(refreshedToken); 
    } 

    private void sendRegistrationToServer(String token) { 
     // TODO: Implement this method to send token to your app server. 
    } 
}