从服务器端向安卓设备发送 FCM 消息

Send FCM messages from server side to android device(从服务器端向安卓设备发送 FCM 消息)

问题描述

随着新的更新，现在将使用 FCM.

With the new update, FCM is now going to be used.

我尝试了 git 中的示例应用程序，它运行良好.我可以从控制台发送通知.

I tried the sample app from git and it's working all fine. I can send notifications from the console.

但我想在某个事件触发后从服务器发送通知.我采用了与 GCM 中相同的方法，但它不起作用.

But I want to send the notification from the server after a certain event is triggered. I followed the same approach like in GCM but it's not working.

05-20 20:40:58.941 30132-30919/com.google.firebase.quickstart.fcm E/AndroidRuntime: FATAL EXCEPTION: pool-1-thread-1
                                                                                    Process: com.google.firebase.quickstart.fcm, PID: 30132
                                                                                    java.lang.NullPointerException: Attempt to invoke virtual method 'java.lang.String com.google.firebase.messaging.RemoteMessage$Notification.getBody()' on a null object reference
                                                                                        at com.google.firebase.quickstart.fcm.MyFirebaseMessagingService.onMessageReceived(MyFirebaseMessagingService.java:53)
                                                                                        at com.google.firebase.messaging.FirebaseMessagingService.zzo(Unknown Source)
                                                                                        at com.google.firebase.messaging.FirebaseMessagingService.zzn(Unknown Source)
                                                                                        at com.google.firebase.messaging.FirebaseMessagingService.zzm(Unknown Source)
                                                                                        at com.google.firebase.iid.zzb$2.run(Unknown Source)
                                                                                        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1113)
                                                                                        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:588)
                                                                                        at java.lang.Thread.run(Thread.java:818)
05-20 20:40:59.118 30132-30279/com.google.firebase.quickstart.fcm E/Surface: getSlotFromBufferLocked: unknown buffer: 0xb9e83390

我正在关注这个 PHP 脚本 来发送通知.如果我尝试执行脚本，我会得到以下结果.

Am following this PHP Script to send the notification. If I try to execute the script, I get the following result.

{"multicast_id":4679427854122301046,"success":1,"failure":0,"canonical_ids":0,"results":[{"message_id":"0:1463757518309261%31bd1c96f9fd7ecd"}]}

注意:我浏览了他们的 docs 并将代码修改为只有正文和标题.即使那样它也不起作用.

NOTE : I went through their docs and modified the code is gist to have only body and title. Even then it's not working.

推荐答案

你可以使用这个完整的代码

You can use this complete code

<?php

function sendFCM($mess,$id) {
$url = 'https://fcm.googleapis.com/fcm/send';
$fields = array (
        'to' => $id,
        'notification' => array (
                "body" => $mess,
                "title" => "Title",
                "icon" => "myicon"
        )
);
$fields = json_encode ( $fields );
$headers = array (
        'Authorization: key=' . "AIzaSyA9vpL9OuX6moOYw-4n3YTSXpoSGQVGnyM",
        'Content-Type: application/json'
);

$ch = curl_init ();
curl_setopt ( $ch, CURLOPT_URL, $url );
curl_setopt ( $ch, CURLOPT_POST, true );
curl_setopt ( $ch, CURLOPT_HTTPHEADER, $headers );
curl_setopt ( $ch, CURLOPT_RETURNTRANSFER, true );
curl_setopt ( $ch, CURLOPT_POSTFIELDS, $fields );

$result = curl_exec ( $ch );
curl_close ( $ch );
}

?>

将消息和令牌 ID 作为参数传递给 sendFCM($mess,$id) 调用.

Pass message and token id as a parameter to the sendFCM($mess,$id) call.

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