在Android中取消推送通知时如何发送请求 [英] How to send a request when push notification is cancelled in Android
问题描述
当应用程序从 FCM 收到 push通知时，它将调用 onMessageReceived .(请参见 1 ， 3 .)
When an application receives push notification from FCM, it calls onMessageReceived. (See 1, 2 or 3.)
当用户点击通知时，它会启动应用程序，然后向服务器发送一个请求，要求用户已阅读该通知.
When a user taps the notification, it launches the applications, then it sends a request to a server that the user has read the notification.
我想知道设备何时收到推送通知，但用户刷了它(或清除了所有通知).我想向服务器发送请求，要求用户只需取消通知.
I want to know when a device received a push notification, but the user swiped it (or cleared all notifications). I want to send a request to the server that the user simply cancelled the notification.
我尝试发送 BroadcastReceiver 并显示日志(请参阅 4 或 5 )，但当应用程序通知发送时已打开.我想那
I tried to send BroadcastReceiver and show logs (see 4 or 5), but it works when the application was opened when the notification delivered. I suppose, that
MyFirebaseMessagingService:
MyFirebaseMessagingService:
override fun onMessageReceived(remoteMessage: RemoteMessage) {
...
// An event when a user swipes a notification.
val intent = Intent(this, NotificationBroadcastReceiver::class.java)
intent.action = "notification_cancelled"
val deleteIntent = PendingIntent.getBroadcast(this, 0, intent, PendingIntent.FLAG_CANCEL_CURRENT)
notificationBuilder.setDeleteIntent(deleteIntent)
// Navigation to an activity when a user taps the notification.
// It doesn't matter to this question.
val intent2 = Intent(this, MainActivity::class.java)
val navigateIntent = PendingIntent.getActivity(this, notificationId, intent2,
PendingIntent.FLAG_UPDATE_CURRENT)
notificationBuilder.setContentIntent(navigateIntent)
...
}
NotificationBroadcastReceiver:
NotificationBroadcastReceiver:
class NotificationBroadcastReceiver : BroadcastReceiver() {
override fun onReceive(context: Context, intent: Intent) {
Timber.d("NotificationBroadcastReceiver onReceive")
Toast.makeText(context, "Notification dismissed", Toast.LENGTH_LONG).show()
// Send a request to the server.
}
}
AndroidManifest:
AndroidManifest:
<uses-permission android:name="com.uremont.NOTIFICATION_PERMISSION" />
<receiver
android:name=".receiver.NotificationBroadcastReceiver"
android:exported="true"
android:permission="NOTIFICATION_PERMISSION"
>
<intent-filter>
<action android:name="notification_cancelled" />
</intent-filter>
</receiver>
仅在打开应用程序时有效.但是，当应用程序在后台或被杀死时，它不会对滑动做出反应.也许我们不应该使用 BroadcastReceiver ，例如，使用 PendingIntent.getService 或 PendingIntent.getForegroundService .
works only when the application is opened. But when the application is in background or killed, it doesn't react to swipe. Probably we shouldn't use BroadcastReceiver, for instance, use PendingIntent.getService or PendingIntent.getForegroundService.
我们可以向服务器发送请求吗?
Can we send a request to the server?
推荐答案
短时间后，它正常工作了(尽管我几乎没有做太大改变).经过大量研究，我提出了此解决方案.在从API 19到API 30的多个Android模拟器和设备上进行了测试.
After a short time it worked right (though I hardly changed much). After a lot of research I made this solution. Tested on several Android emulators and devices from API 19 to API 30.
因为使用 BroadcastReceiver 是不安全，在AndroidManifest中添加:
Because using BroadcastReceiver is not safe, add in AndroidManifest:
<receiver
android:name=".NotificationBroadcastReceiver"
android:exported="false"
/>
NotificationBroadcastReceiver:
NotificationBroadcastReceiver:
class NotificationBroadcastReceiver : BroadcastReceiver() {
override fun onReceive(context: Context, intent: Intent) {
Timber.d("NotificationBroadcastReceiver onReceive")
if (intent.extras != null) {
// Receive parameters of a cancelled notification.
val authToken = intent.getStringExtra(EXTRA_TOKEN)
val code = intent.getStringExtra(EXTRA_CODE)
Timber.d("token = $authToken, code = $code")
// We can access context even if the application was removed from the recent list.
Toast.makeText(context, "Notification $code was cancelled", Toast.LENGTH_SHORT).show()
// Send data to a server.
}
}
companion object {
const val EXTRA_TOKEN = "EXTRA_TOKEN"
const val EXTRA_CODE = "EXTRA_CODE"
}
}
MyFirebaseMessagingService:
MyFirebaseMessagingService:
override fun onMessageReceived(remoteMessage: RemoteMessage) {
...
// Get notification code from data.
val code = remoteMessage.data["code"]
val notificationBuilder = NotificationCompat.Builder(this,
...
val notificationId = Random.nextInt()
val intent = Intent(this, NotificationBroadcastReceiver::class.java).apply {
putExtra(EXTRA_TOKEN, authToken)
putExtra(EXTRA_CODE, code)
}
val deleteIntent = PendingIntent.getBroadcast(this, notificationId, intent,
PendingIntent.FLAG_CANCEL_CURRENT)
notificationBuilder.setDeleteIntent(deleteIntent)
val notification = notificationBuilder.build()
notificationManager.notify(notificationId, notification)
}
使用推送令牌将推送消息发送到Android设备，例如:
Send a push message to Android device with it's push token, for instance:
{
"to": "ddSOGiz4QzmY.....:APA91bHgoincFw.......",
"data": {
"title": "Test",
"message": "Test",
"code": "ABCDEF"
}
}
您可以在此处中看到不同的传递推送消息的方案.如果用户按下强行停止"，则在屏幕上显示强制停止".在应用程序上，它赢得了没有收到推送消息("AliExpress"除外，哈哈).
You can see different schemes of delivering push messages here. If a user presses "Force stop" at the application, it won't receive push messages (except "AliExpress", ha-ha).
当用户关闭推送通知时，将调用 NotificationBroadcastReceiver :: onReceive().应用程序获取推送消息的参数.然后，我们可以看到一条敬酒消息并将这些参数发送到服务器.
When the user dismisses push notification, NotificationBroadcastReceiver::onReceive() is called. An application gets parameters of the push message. Then we can see a toast message and send these parameters to the server.
当用户按下全部清除"时，通知，将触发所有撤消事件.因此，您将看到一系列的敬酒.服务器将同时接收几个请求(例如，检查它是否可以在0.01秒内处理10个请求).
When the user presses "Clear all" notifications, all dismiss events are fired. So, you will see a sequence of toasts. The server will receive several requests simultaneously (check that it can handle, for instance, 10 requests in 0.01 second).
这篇关于在Android中取消推送通知时如何发送请求的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
