Firebase messaging-使用kotlin处理后台消息

import com.google.firebase.messaging.FirebaseMessagingService
import com.google.firebase.messaging.RemoteMessage

class MyFirebaseMessagingService : FirebaseMessagingService() {

    override fun onMessageReceived(remoteMessage: RemoteMessage) {
        super.onMessageReceived(remoteMessage)

        // 检查是否有通知数据
        remoteMessage.notification?.let {
            sendNotification(it.title, it.body)
        }

        // 检查是否有数据消息
        remoteMessage.data.isNotEmpty().let {
            // 处理数据消息
            handleDataMessage(remoteMessage.data)
        }
    }

    private fun sendNotification(title: String?, messageBody: String?) {
        // 实现发送通知的逻辑
        // 可以使用 NotificationCompat.Builder 来创建通知
    }

    private fun handleDataMessage(data: Map<String, String>) {
        // 处理数据消息的逻辑
        // 例如，更新UI或执行后台任务
    }
}

<service
    android:name=".MyFirebaseMessagingService"
    android:exported="false">
    <intent-filter>
        <action android:name="com.google.firebase.MESSAGING_EVENT" />
    </intent-filter>
</service>

dependencies {
    implementation 'com.google.firebase:firebase-messaging-ktx:23.0.0'
}

apply plugin: 'com.google.gms.google-services'