英文:
How to trigger an action once the push notification is received
问题
我想使用Java构建一个Android应用程序。我将使用GCM来发送推送通知。然而，我不确定是否可以将推送通知用作触发器。因此，我想要做类似于这样的事情：
如果收到来自另一个设备的推送通知，
将一个布尔值设置为true，
使用这个布尔值并触发一个操作。
我只是想找出是否有可能。我还没有开始编码。谢谢。
英文:
I want to build an android app using java. I will use GCM to send push notifications. However, I am not sure if is it possible that we can use push notifications as a trigger. So I want to do something like this:
If a push notification is received from another device,
Make a boolean true,
Use this boolean and trigger an action.
I just want to find out if it is possible. I haven't start to code yet. Thank you.
答案1
得分: -1
是的，您应该使用 FCM，因为Google 已经弃用了 GCM。
通过使用 FCM，您可以接收通知并在设备上触发操作。
您需要在清单文件中注册一个服务：
<service
android:name=".MyFirebaseMessagingService"
android:exported="false">
<intent-filter>
<action android:name="com.google.firebase.MESSAGING_EVENT"/>
</intent-filter>
</service>
然后创建一个扩展了 FirebaseMessagingService 并重写了 onMessageReceived 方法的 MyFirebaseMessagingService 类：
@Override
public void onMessageReceived(RemoteMessage remoteMessage) {
Log.d(TAG, "From: " + remoteMessage.getFrom());
// 检查消息是否包含数据有效负载。
if (remoteMessage.getData().size() > 0) {
Log.d(TAG, "Message data payload: " + remoteMessage.getData());
}
// 检查消息是否包含通知有效负载。
if (remoteMessage.getNotification() != null) {
Log.d(TAG, "Message Notification Body: " + remoteMessage.getNotification().getBody());
}
// 触发您想要的任何操作。
}
有关更多信息，请查阅官方文档。
英文:
Yes, you should use FCM as Google deprecated GCM.
Using FCM you can receive the notification and trigger an action in your device.
You'll need to register a service in your manifest:
<service
android:name=".MyFirebaseMessagingService"
android:exported="false">
<intent-filter>
<action android:name="com.google.firebase.MESSAGING_EVENT"/>
</intent-filter>
</service>
And then create the class MyFirebaseMessagingService that extends FirebaseMessagingService and override the onMessageReceived method:
@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());
}
// Check if message contains a notification payload.
if (remoteMessage.getNotification() != null) {
Log.d(TAG, "Message Notification Body: " + remoteMessage.getNotification().getBody());
}
// Trigger any actions that you want.
}
For more information, please check the official documentation.
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