问题描述
我试图在Android系统收到Firebase Cloud消息通知时运行Android BroadcastReceiver。
I am trying to get the Android BroadcastReceiver to run when a Firebase Cloud message notification is received by the Android system.
public class MyBroadcastReceiver extends BroadcastReceiver {
private static final String TAG = "MyBroadcastReceiver";
@Override
public void onReceive(final Context context, Intent intent) {
Toast.makeText(context, "EVENT OCCURED", Toast.LENGTH_LONG).show();
}
}
在AndroidManifest中需要指定接收方标签，例如：
It is required in the AndroidManifest to specify receiver tags as such:
<receiver
android:name=".MyBroadcastReceiver" android:exported="true">
<intent-filter>
<action android:name="android.intent.action.ACTION_POWER_CONNECTED"/>
<action android:name="com.google.firebase.MESSAGING_EVENT" />
</intent-filter>
</receiver>
正如您在上面的清单中所见，我已经添加：
As you can see in the Manifest above I've added:
<action android:name="android.intent.action.ACTION_POWER_CONNECTED"/>
确保当我将电缆插入Android设备时可以触发BroadcastReceiver。
to make sure the BroadcastReceiver fires when I plug cable to Android device. It works fine.
因此，问题在于：
<action android:name="com.google.firebase.MESSAGING_EVENT" />
此Intent-filter操作是否未被BroadcastReceiver识别？
BroadcastReceiver使用的Firebase消息是否还有另一个意图过滤器动作？
Is this intent-filter action not recognized by the BroadcastReceiver?Is there another intent-filter action for Firebase messaging the BroadcastReceiver uses?
推荐答案
Android意图消息传递系统处理意图在三个渠道中：活动，服务和广播接收器。 的方法表示渠道类型： startActivity（）， startService（）和 sendBroadcast（）。用 startService（）发布的意图仅与服务的意图过滤器匹配。
The Android Intent messaging system processes Intents in three "channels": Activities, Services and BroadcastReceivers. The methods for publishing an Intent indicate the channel type: startActivity(), startService() and sendBroadcast(). An intent published with startService() will only match the intent filter of a Service. It is not tested against Activities and BroadcastReceivers.
因为操作 com.google.firebase.MESSAGING_EVENT 通常被接收，因此未针对活动和广播接收器进行测试。如果服务是从 FirebaseMessagingService 派生的，则必须在操作通道中发布操作。您将无法使用BroadcastReceiver接收它。
Because action com.google.firebase.MESSAGING_EVENT is normally received by a Service derived from FirebaseMessagingService, it must be the case that the action is published in the Service channel. You will not be able to receive it with a BroadcastReceiver.
这篇关于什么用于BroadcastReceiver的Firebase云消息传递Intent过滤器？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！