Question

我正在编写一个支持GCM的Android 4.0.3程序。应用程序注册正常，从服务器发送消息似乎也有效（从Google获得“成功”并带有消息ID），但我的BroadcastReceiver上的onReceive方法由于某种原因不会被解雇。

这是清单：

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.jlieberman.nightwatch"
    android:versionCode="1"
    android:versionName="1.0" >

    <uses-sdk
        android:minSdkVersion="11"
        android:targetSdkVersion="18" />

    <uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
    <uses-permission android:name="android.permission.INTERNET" />
    <uses-permission android:name="android.permission.GET_ACCOUNTS" />
    <uses-permission android:name="android.permission.WAKE_LOCK" />
    <uses-permission android:name="com.jlieberman.nightwatch.permission.C2D_MESSAGE" />
    <uses-permission android:name="com.google.android.c2dm.permission.RECEIVE" />

    <application
        android:allowBackup="true"
        android:icon="@drawable/ic_launcher"
        android:label="@string/app_name"
        android:theme="@style/AppTheme" >
        <activity
            android:name="com.jlieberman.nightwatch.NightWatch"
            android:label="@string/app_name" >
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

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

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

                <category android:name="com.jlieberman.nightwatch" />
            </intent-filter>
        </receiver>

        <service android:name=".GcmIntentService" />
    </application>

</manifest>

这是BroadcastReceiver：

package com.jlieberman.nightwatch;

import android.app.Activity;
import android.content.ComponentName;
import android.content.Context;
import android.content.Intent;
import android.support.v4.content.WakefulBroadcastReceiver;

public class GcmBroadcastReceiver extends WakefulBroadcastReceiver {

    @Override
    public void onReceive(Context context, Intent intent) {
        // Explicitly specify that GcmIntentService will handle the intent.
        ComponentName comp = new ComponentName(context.getPackageName(),
                GcmIntentService.class.getName());
        // Start the service, keeping the device awake while it is launching.
        startWakefulService(context, (intent.setComponent(comp)));
        setResultCode(Activity.RESULT_OK);
    }

}

知道造成这个问题的原因是什么吗？谢谢！

Answer 1

您的清单中有<uses-permission android:name="com.jlieberman.nightwatch.permission.C2D_MESSAGE" />，但我看不到您在何处定义此权限。

你应该添加：

<permission android:name="com.jlieberman.nightwatch.permission.C2D_MESSAGE" android:protectionLevel="signature" />

Answer 2

好请试试这个

   import com.google.android.gms.gcm.GoogleCloudMessaging;
    import android.app.Activity;
    import android.app.NotificationManager;
    import android.app.PendingIntent;
    import android.content.BroadcastReceiver;
    import android.content.Context;
    import android.content.Intent;
    import android.support.v4.app.NotificationCompat;
    import android.util.Log;

    public class MyBroadcastReceiver extends BroadcastReceiver {
        static final String TAG = "pushnotification";
        public static final int NOTIFICATION_ID = 1;
        private NotificationManager mNotificationManager;
        NotificationCompat.Builder builder;
        Context ctx;
        @Override
        public void onReceive(Context context, Intent intent) {
            GoogleCloudMessaging gcm = GoogleCloudMessaging.getInstance(context);
            ctx = context;
            WakeLocker.acquire(ctx);
            String messageType = gcm.getMessageType(intent);
            if (GoogleCloudMessaging.MESSAGE_TYPE_SEND_ERROR.equals(messageType)) {
                sendNotification("Send error: " + intent.getExtras().toString());
            } else if (GoogleCloudMessaging.MESSAGE_TYPE_DELETED.equals(messageType)) {
                sendNotification("Deleted messages on server: " +
                        intent.getExtras().toString());
            } else {
                sendNotification("Received: " + intent.getExtras().toString());
            }
            setResultCode(Activity.RESULT_OK);
            WakeLocker.release();
        }
}

对于wakelocker，我写了一堂课，就在这里，

WakeLocker.java

import android.content.Context;
import android.os.PowerManager;

public abstract class WakeLocker {
    private static PowerManager.WakeLock wakeLock;

    public static void acquire(Context context) {
        if (wakeLock != null) wakeLock.release();

        PowerManager pm = (PowerManager) context.getSystemService(Context.POWER_SERVICE);
        wakeLock = pm.newWakeLock(PowerManager.FULL_WAKE_LOCK |
                PowerManager.ACQUIRE_CAUSES_WAKEUP |
                PowerManager.ON_AFTER_RELEASE, "WakeLock");
        wakeLock.acquire();
    }

    public static void release() {
        if (wakeLock != null) wakeLock.release(); wakeLock = null;
    }
}

尝试这个，如果它不起作用，请在这里帮助!!!!

Answer 3

我最近遇到了同样的问题，并发现它是权限中的包名称错误。需要严格遵循本指南，使用主要包裹的名称，谷歌的例子适用于儒家思想。

将以下内容添加到您的应用程序的清单中：

The com.google.android.c2dm.permission.RECEIVE
The android.permission.INTERNET
The android.permission.GET_ACCOUNTS
The android.permission.WAKE_LOCK
An applicationPackage + ".permission.C2D_MESSAGE"

并在过滤器名称中：

A receiver for com.google.android.c2dm.intent.RECEIVE

在Android 4.0.3上没有触发GcmBroadcastReceiver onReceive方法

3 个答案: