【发布时间】：2018-07-18 13:55:08
【问题描述】：
我已从服务器向用户发送 FCM 通知。它工作正常（直到 api 25）但在 Oreo 中，当应用程序没有在后台（服务已关闭）（或）完全关闭时。在这种情况下我没有收到任何 FCM 通知，但在 Whatsapp 中工作正常。 这里我附上了FCM代码
清单.xml
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.fcm">
<application
android:allowBackup="true"
android:icon="@mipmap/ic_launcher"
android:label="@string/app_name"
android:roundIcon="@mipmap/ic_launcher_round"
android:supportsRtl="true"
android:theme="@style/AppTheme">
<activity android:name=".MainActivity">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<service
android:name=".MyFirebaseMessagingService">
<intent-filter>
<action android:name="com.google.firebase.MESSAGING_EVENT"/>
</intent-filter>
<intent-filter>
<action android:name="com.google.firebase.INSTANCE_ID_EVENT"/>
</intent-filter>
</service>
<meta-data
android:name="com.google.firebase.messaging.default_notification_icon"
android:resource="@drawable/ic_stat_ic_notification" />
<meta-data
android:name="com.google.firebase.messaging.default_notification_color"
android:resource="@color/colorAccent" />
<meta-data
android:name="com.google.firebase.messaging.default_notification_channel_id"
android:value="fcm"/>
<meta-data android:name="firebase_messaging_auto_init_enabled"
android:value="false" />
<meta-data android:name="firebase_analytics_collection_enabled"
android:value="false" />
</application>
</manifest>
应用程序/gradle
apply plugin: 'com.android.application'
android {
compileSdkVersion 28
defaultConfig {
applicationId "com.fcm"
minSdkVersion 16
targetSdkVersion 28
versionCode 1
versionName "1.0"
testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
}
buildTypes {
release {
minifyEnabled false
proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
}
}
}
dependencies {
implementation fileTree(dir: 'libs', include: ['*.jar'])
implementation 'com.android.support.constraint:constraint-layout:1.1.2'
testImplementation 'junit:junit:4.12'
androidTestImplementation 'com.android.support.test:runner:1.0.2'
androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.2'
implementation 'com.google.firebase:firebase-messaging:17.1.0'
}
apply plugin: 'com.google.gms.google-services'
MyFirebaseMessagingService.java
package com.fcm;
import android.app.Service;
import android.util.Log;
import com.google.firebase.messaging.FirebaseMessagingService;
import com.google.firebase.messaging.RemoteMessage;
public class MyFirebaseMessagingService extends FirebaseMessagingService
{
@Override
public void onNewToken(String s)
{
super.onNewToken(s);
}
@Override
public void onMessageReceived(RemoteMessage remoteMessage) {
super.onMessageReceived(remoteMessage);
Log.e("FCM Message Received","You Have FCM Message");
}
}
MainActivity.java
package com.nexge.fcm;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.util.Log;
import com.google.android.gms.tasks.OnSuccessListener;
import com.google.firebase.iid.FirebaseInstanceId;
import com.google.firebase.iid.InstanceIdResult;
public class MainActivity extends AppCompatActivity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
FirebaseInstanceId.getInstance().getInstanceId().addOnSuccessListener( this, new OnSuccessListener<InstanceIdResult>() {
@Override
public void onSuccess(InstanceIdResult instanceIdResult) {
String newToken = instanceIdResult.getToken();
Log.e("newToken",newToken);
}
});
}
}
【问题讨论】：
-
你能发布你的 json fcm 有效载荷吗？
-
Android O（及以上）需要使用Notification Channels
-
您的服务器是否以高优先级发送 FCM？
-
@maheryhaja 我的样本有效载荷 { to : TOKEN_ID , priority : HIGH , data : My_MESSAGE } .
-
通知和推送通知是不同的。这里我面临 FCM 没有收到消息@Yousefkhan
标签： android firebase firebase-cloud-messaging