android - 接收从 Google Cloud Messaging 发送的消息 - Android

Question

我在接收 GCM 发送的消息时遇到了很多麻烦。我的 WakefulBroadcastReceiver 永远不会被解雇。我四处寻找了很多帮助，但没有用。在这方面的任何帮助将不胜感激!

WakefulBroadcastReceiver

public class GCMBroadcastReceiver extends WakefulBroadcastReceiver {
    @Override
    public void onReceive(Context context, Intent intent) {
        Log.e("TAG", "in BroadcastReceiver");
        ComponentName componentName = new ComponentName(context.getPackageName(), MyGcmListenerService.class.getName());
        intent.setComponent(componentName);
        startWakefulService(context, intent);
        setResultCode(Activity.RESULT_OK);
    }
}

Intent 服务

public class MyGcmListenerService extends IntentService {

    public static final String TAG = MyGcmListenerService.class.getSimpleName();

    public MyGcmListenerService() {
        super(TAG);
    }

    @Override
    protected void onHandleIntent(Intent intent) {
        Log.e("TAG", "in HandleIntent");
        Bundle extras = intent.getExtras();
        GoogleCloudMessaging gcm = GoogleCloudMessaging.getInstance(this);
        String messageType = gcm.getMessageType(intent);

        if (!extras.isEmpty()) {
            if (GoogleCloudMessaging.MESSAGE_TYPE_SEND_ERROR
                    .equals(messageType)) {
                Log.e("Send error: ", extras.toString());
            } else if (GoogleCloudMessaging.MESSAGE_TYPE_DELETED
                    .equals(messageType)) {
                Log.e("Deleted messages: ",
                        extras.toString());
            } else if (GoogleCloudMessaging.MESSAGE_TYPE_MESSAGE
                    .equals(messageType)) {
                for (int i=0; i<5; i++) {
                    Log.i(TAG, "Working... " + (i+1)
                            + "/5 @ " + SystemClock.elapsedRealtime());
                    try {
                        Thread.sleep(500);
                    } catch (InterruptedException e) {
                        e.printStackTrace();
                    }
                }
                Log.i(TAG, "Completed work @ " + SystemClock.elapsedRealtime());
                String msg = extras.getString("message");
                String urlImg = extras.getString("image");
                String title = extras.getString("title");
                Log.e("GCM Mesage: ", "msg: " + msg + " title: " + title);
                Toast.makeText(MyGcmListenerService.this, "msg: " + msg + " title: " + title, Toast.LENGTH_LONG).show();
            }
        }
        GCMBroadcastReceiver.completeWakefulIntent(intent);
    }
}

list

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="org.purepush.chatdemo">


    <uses-permission android:name="android.permission.WAKE_LOCK" />
    <permission
        android:name="org.purepush.chatdemo.permission.C2D_MESSAGE"
        android:protectionLevel="signature" />

    <uses-permission android:name="org.purepush.chatdemo.permission.C2D_MESSAGE" />
    <uses-permission android:name="com.google.android.c2dm.permission.RECEIVE" />
    <uses-permission android:name="android.permission.INTERNET" />

    <application
        android:allowBackup="true"
        android:icon="@mipmap/ic_launcher"
        android:label="@string/app_name"
        android:supportsRtl="true"
        android:theme="@style/AppTheme">


        <meta-data
            android:name="com.google.android.gms.version"
            android:value="@integer/google_play_services_version" />

        <activity
            android:name=".MainActivity"
            android:label="@string/app_name"
            android:theme="@style/AppTheme.NoActionBar">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
        <activity android:name=".ChatActivity" />

        <receiver
            android:name=".service.GCMBroadcastReceiver"
            android:permission="com.google.android.c2dm.permission.SEND" >
            <intent-filter>
                <action android:name="com.google.android.c2dm.intent.RECEIVE" />
                <action android:name="com.google.android.c2dm.intent.REGISTRATION" />

                <category android:name="org.purepush.chatdemo" />
            </intent-filter>
        </receiver>

        <service
            android:name=".service.MyGcmListenerService"/>
        <service
            android:name=".service.MyInstanceIDListenerService"
            android:exported="false">
            <intent-filter>
                <action android:name="com.google.android.gms.iid.InstanceID" />
            </intent-filter>
        </service>
        <service android:name=".service.RegistrationIntentService" />
    </application>

</manifest>

Answer 1

好的.. 所以这里有几件事需要解决。首先是扩展 GcmListenerService(它实际上继承自 IntentService，但会为您完成其余工作)，然后使用 Intent 过滤器声明它

<action android:name="com.google.android.c2dm.intent.RECEIVE" />

此外，如果可能，尽量坚持使用 Google 提供的 GcmReceiver，我认为它继承自 WakefulBroadcastReceiver ( https://developers.google.com/android/reference/com/google/android/gms/gcm/GcmReceiver)。

您可以在 https://github.com/ucsunil/android-gcm-practice/tree/master/android-gcm-chat 找到我正在处理的一个非常简单的示例- 一个聊天应用程序(非常类似于我相信你正在尝试做但后来停止了它。我记得查看日志并且我记得它会正确接收消息并且你可以用它作为例子。我使用了 Gcm提供的服务和接收器。

`