我正在构建一个接收推送通知的Android应用程序。我已经设置了Firebase云消息传递功能并且几乎可以正常工作，因此我可以将以下有效负载发送到有效的令牌，并收到通知和数据。
使用网址https://fcm.googleapis.com/fcm/send
{
"to":"<valid-token>",
"notification":{"body":"BODY TEXT","title":"TITLE TEXT","sound":"default"},
"data":{"message":"This is some data"}
}
我的应用正确接收它并可以处理它。
唯一轻微的皱纹是我在调试中抛出以下异常：
Error while parsing timestamp in GCM event
java.lang.NumberFormatException: Invalid int: "null"
at java.lang.Integer.invalidInt(Integer.java:138)
...
它不会使应用程序崩溃，只是看起来不整洁。
我尝试将timestamp项添加到主要有效负载、通知、数据中，也尝试了诸如time之类的变体，但似乎无法摆脱异常(和谷歌，我可能，我找不到答案(。
如何传递时间戳以使其停止抱怨？
编辑：这是我onMessageReceived方法，但我认为异常在到达这里之前就被抛出了
@Override
public void onMessageReceived(RemoteMessage remoteMessage) {
Log.d(TAG, "From: " + remoteMessage.getFrom());
// Check if message contains a data payload.
if (remoteMessage.getData().size() > 0) {
Log.d(TAG, "Message data payload: " + remoteMessage.getData());
//TODO Handle the data
}
// Check if message contains a notification payload.
if (remoteMessage.getNotification() != null) {
Log.d(TAG, "Message Notification Body: " + remoteMessage.getNotification().getBody());
}
}
提前感谢， 克里斯
尽管notification显然是一个受支持的元素(根据 Firebase 网络文档(，但我摆脱异常的唯一方法是完全删除它，并仅使用data部分，然后在我的应用程序中创建通知(而不是让 Firebase 执行通知(。
我使用这个网站来研究如何发出通知：https://www.androidhive.info/2012/10/android-push-notifications-using-google-cloud-messaging-gcm-php-and-mysql/
我的通知现在如下所示：
$fields = array("to" => "<valid-token>",
"data" => array("data"=>
array(
"message"=>"This is some data",
"title"=>"This is the title",
"is_background"=>false,
"payload"=>array("my-data-item"=>"my-data-value"),
"timestamp"=>date('Y-m-d G:i:s')
)
)
);
...
<curl stuff here>
...
curl_setopt($ch, CURLOPT_POSTFIELDS, json_encode($fields));
我的onMessageReceived如下所示：
@Override
public void onMessageReceived(RemoteMessage remoteMessage) {
Log.d(TAG, "From: " + remoteMessage.getFrom());
// Check if message contains a data payload.
if (remoteMessage.getData().size() > 0) {
Log.e(TAG, "Data Payload: " + remoteMessage.getData().toString());
try {
JSONObject json = new JSONObject(remoteMessage.getData().toString());
handleDataMessage(json);
} catch (Exception e) {
Log.e(TAG, "Exception: " + e.getMessage());
}
}
}
它调用handleDataMessage看起来像这样：
private void handleDataMessage(JSONObject json) {
Log.e(TAG, "push json: " + json.toString());
try {
JSONObject data = json.getJSONObject("data");
String title = data.getString("title");
String message = data.getString("message");
boolean isBackground = data.getBoolean("is_background");
String timestamp = data.getString("timestamp");
JSONObject payload = data.getJSONObject("payload");
// play notification sound
NotificationUtils notificationUtils = new NotificationUtils(getApplicationContext());
notificationUtils.playNotificationSound();
if (!NotificationUtils.isBackgroundRunning(getApplicationContext())) {
// app is in foreground, broadcast the push message
Intent pushNotification = new Intent(ntcAppManager.PUSH_NOTIFICATION);
pushNotification.putExtra("message", message);
LocalBroadcastManager.getInstance(this).sendBroadcast(pushNotification);
} else {
// app is in background, show the notification in notification tray
Intent resultIntent = new Intent(getApplicationContext(), MainActivity.class);
resultIntent.putExtra("message", message);
showNotificationMessage(getApplicationContext(), title, message, timestamp, resultIntent);
}
} catch (JSONException e) {
Log.e(TAG, "Json Exception: " + e.getMessage());
} catch (Exception e) {
Log.e(TAG, "Exception: " + e.getMessage());
}
}
然后调用showNotificationMessage
/**
* Showing notification with text only
*/
private void showNotificationMessage(Context context, String title, String message, String timeStamp, Intent intent) {
notificationUtils = new NotificationUtils(context);
intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK | Intent.FLAG_ACTIVITY_CLEAR_TASK);
notificationUtils.showNotificationMessage(title, message, timeStamp, intent);
}
随后notificationUtils.showNotificationMessage
public void showNotificationMessage(String title, String message, String timeStamp, Intent intent) {
showNotificationMessage(title, message, timeStamp, intent, null);
}
public void showNotificationMessage(final String title, final String message, final String timeStamp, Intent intent, String imageUrl) {
// Check for empty push message
if (TextUtils.isEmpty(message))
return;
// notification icon
final int icon = R.mipmap.ic_launcher;
intent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP | Intent.FLAG_ACTIVITY_SINGLE_TOP);
final PendingIntent resultPendingIntent =
PendingIntent.getActivity(
mContext,
0,
intent,
PendingIntent.FLAG_CANCEL_CURRENT
);
final NotificationCompat.Builder mBuilder = new NotificationCompat.Builder(
mContext);
final Uri alarmSound = Uri.parse(ContentResolver.SCHEME_ANDROID_RESOURCE
+ "://" + mContext.getPackageName() + "/raw/notification");
showSmallNotification(mBuilder, icon, title, message, timeStamp, resultPendingIntent, alarmSound);
playNotificationSound();
}
private void showSmallNotification(NotificationCompat.Builder mBuilder, int icon, String title, String message, String timeStamp, PendingIntent resultPendingIntent, Uri alarmSound) {
NotificationCompat.InboxStyle inboxStyle = new NotificationCompat.InboxStyle();
inboxStyle.addLine(message);
Notification notification;
notification = mBuilder.setSmallIcon(icon).setTicker(title).setWhen(0)
.setAutoCancel(true)
.setContentTitle(title)
.setContentIntent(resultPendingIntent)
.setSound(alarmSound)
.setStyle(inboxStyle)
.setWhen(getTimeMilliSec(timeStamp))
.setSmallIcon(R.mipmap.ic_launcher)
.setLargeIcon(BitmapFactory.decodeResource(mContext.getResources(), icon))
.setContentText(message)
.build();
NotificationManager notificationManager = (NotificationManager) mContext.getSystemService(Context.NOTIFICATION_SERVICE);
notificationManager.notify(ntcAppManager.NOTIFICATION_ID, notification);
}
上面的链接中有更多详细信息，它有很多处理，但至少异常消失了，我可以控制通知。
我已经将com.google.firebase：firebase-messaging 更新到17.3.4，问题消失了。
我遇到了同样的错误，我通过向有效负载添加一个ttl值来解决。
{
"to":"<valid-token>",
"notification":{"body":"BODY TEXT","title":"TITLE TEXT","sound":"default"},
"data":{"message":"This is some data"},
"ttl": 3600
}
我遇到了同样的问题，我刚刚在通知中设置了"body"参数并消失了错误。
什么对我有用：
不仅firebase-messaging，而且将所有Firebase库升级到最新版本。在android/app/build.gradle：
dependencies {
implementation "com.google.firebase:firebase-core:16.0.0" // upgraded
implementation "com.google.firebase:firebase-analytics:16.0.0" // upgraded
implementation 'com.google.firebase:firebase-messaging:17.3.4' // upgraded
// ...
implementation "com.google.firebase:firebase-invites:16.0.0" // upgraded
// ...
}
并非所有版本都是 17.x 版
下面的格式(没有通知正文，也没有任何数组(为我修复了时间戳异常：
{
"to": "eeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee",
"data": {
"message": "message",
"title": "hello",
}
}
经 http://pushtry.com/测试良好
我包括长"eeee..."的唯一原因这就是我的令牌的确切大小。
替换
"notification" : {
"title" : "title !",
"body" : "body !",
"sound" : "default"
},
"condition" : "'xxx' in topics",
"priority" : "high",
"data" : {
....
通过(删除通知(：
{
"condition" : "'xxxx' in topics",
"priority" : "high",
"data" : {
"title" : "title ! ",
"body" : "BODY",
......
}
在你的代码上： 取代：
@Override
public void onMessageReceived(RemoteMessage remoteMessage) {
remoteMessage.getNotification().getTitle();
remoteMessage.getNotification().getBody();
}
由
@Override
public void onMessageReceived(RemoteMessage remoteMessage) {
remoteMessage.getData().get("title");
remoteMessage.getData().get("body");
}
就我而言，我的错误是"AndrodManifest.xml">
我错过了一项服务(实际上Android工作室的Firebase助手缺少我的许可:)。
源语言
<service android:name=".fcm.MyFirebaseInstanceIDService">
<intent-filter>
<action android:name="com.google.firebase.INSTANCE_ID_EVENT" />
</intent-filter>
</service>
</application>
溶液
<service android:name=".fcm.MyFirebaseInstanceIDService">
<intent-filter>
<action android:name="com.google.firebase.INSTANCE_ID_EVENT" />
</intent-filter>
</service>
<service android:name=".fcm.MyFirebaseMessagingService">
<intent-filter>
<action android:name="com.google.firebase.MESSAGING_EVENT" />
</intent-filter>
</service>
</application>