收到 GCM 消息但未显示 - 广播接收器结果=取消 - 服务强制停止

GCM message received but not displayed - Broadcast receiver result=CANCELLED - Service force stop

我已经在我的应用程序和服务器上实现了 GCM 消息传递,一切正常,但不是每个 phone!

主要问题是:

我做了很多研究,我认为原因可能是华为 P8(主要测试设备)在您从 "recent activities" 选项卡上滑动时自动强行关闭所有应用程序。但如果是这种情况,其他应用程序如 "Facebook"、"Viber" 等将不会向我发送推送通知。

Manifest.xml

<receiver
        android:name="com.happyhour.gcm.GcmBroadcastReceiver"
        android:permission="com.google.android.c2dm.permission.SEND">
        <intent-filter>
            <action android:name="android.intent.action.BOOT_COMPLETED"/>
            <action android:name="android.intent.action.REBOOT"/>
            <action android:name="android.intent.action.PACKAGE_REPLACED"/>
            <action android:name="android.intent.action.BATTERY_CHANGED"/>
            <action android:name="android.intent.action.USER_PRESENT"/>
            <action android:name="com.google.android.c2dm.intent.RECEIVE" />                
            <action android:name="com.google.android.c2dm.intent.REGISTRATION" />
            <category android:name="com.happyhour.main" />
        </intent-filter>
    </receiver>
    <service
        android:name="com.happyhour.gcm.GcmIntentService" >
    </service>

    <receiver android:name="com.happyhour.gcm.UpdateReceiver">
        <intent-filter>
            <action android:name="android.intent.action.PACKAGE_REPLACED" />
            <action android:name="android.intent.action.PACKAGE_INSTALL"/>
            <data android:path="com.happyhour.main"
                 android:scheme="package" />
        </intent-filter>
    </receiver>

GCMBroadCastReceiver

public class GcmBroadcastReceiver extends WakefulBroadcastReceiver {



@Override
public void onReceive(Context context, Intent intent) {
    // TODO Auto-generated method stub

    Log.i("GcmBroadcast",intent.getExtras().toString());


    SharedPreferences settings = context.getSharedPreferences("MyPrefsFile", 0);



        if (settings.getBoolean("my_first_time", true)) {
            //the app is being launched for first time, do something        

                  //do nothing

            // record the fact that the app has been started at least once
            settings.edit().putBoolean("my_first_time", false).commit(); 
        }else{
            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);
        }

    }
}

GCMIntentService

public class GcmIntentService extends IntentService {

private String TAG = "GcmIntent";
public static final int NOTIFICATION_ID = 1;
private NotificationManager mNotificationManager;
NotificationCompat.Builder builder;

public GcmIntentService() {
    super("GcmIntentService");
}

@Override
public void onCreate(){
    super.onCreate();
}


@Override
public int onStartCommand(Intent intent, int flags, int startId) {
    onHandleIntent(intent);
    return START_STICKY;
}



@Override
protected void onHandleIntent(Intent intent) {
    Bundle extras = intent.getExtras();
    GoogleCloudMessaging gcm = GoogleCloudMessaging.getInstance(this);
    // The getMessageType() intent parameter must be the intent you received
    // in your BroadcastReceiver.
    Log.i(TAG, "Received: " + extras.toString());
    String messageType = gcm.getMessageType(intent);

    Log.i(TAG, "Message type:" + messageType);
    if (!extras.isEmpty()) {  // has effect of unparcelling Bundle
        /*
         * Filter messages based on message type. Since it is likely that GCM
         * will be extended in the future with new message types, just ignore
         * any message types you're not interested in, or that you don't
         * recognize.
         */
         if (GoogleCloudMessaging.
                MESSAGE_TYPE_MESSAGE.equals(messageType)) {
            Log.i(TAG, "Completed work @ " + SystemClock.elapsedRealtime());
            // Post notification of received message.

             sendNotification(extras.getString("message"), extras.getString("title"));

             Log.i(TAG, "Received: " + extras.toString());
        }
    }
    // Release the wake lock provided by the WakefulBroadcastReceiver.
    GcmBroadcastReceiver.completeWakefulIntent(intent);
}

// Put the message into a notification and post it.
// This is just one simple example of what you might choose to do with
// a GCM message.
private void sendNotification(String msg, String title) {
    mNotificationManager = (NotificationManager)
            this.getSystemService(Context.NOTIFICATION_SERVICE);
    if(title.isEmpty()){
        title="Happy Hour plus";
    }

    PendingIntent contentIntent = PendingIntent.getActivity(this, 0,
            new Intent(this, SplashScreen.class), 0);

    NotificationCompat.Builder mBuilder =
            new NotificationCompat.Builder(this)
    .setSmallIcon(R.drawable.ic_stat_notification)
    .setContentTitle(title)
    .setStyle(new NotificationCompat.BigTextStyle()
    .bigText(msg))
    .setContentText(msg)
    .setSound(RingtoneManager.getDefaultUri(RingtoneManager.TYPE_NOTIFICATION))
    .setVibrate(new long[] {250,250,250,250})
    .setAutoCancel(true);


    mBuilder.setContentIntent(contentIntent);
    mNotificationManager.notify(NOTIFICATION_ID, mBuilder.build());

}

public boolean checkApp(){
    ActivityManager am = (ActivityManager) this.getSystemService(ACTIVITY_SERVICE);

    // get the info from the currently running task
    List<ActivityManager.RunningTaskInfo> taskInfo = am.getRunningTasks(1);

    ComponentName componentInfo = taskInfo.get(0).topActivity;
    if (componentInfo.getPackageName().equalsIgnoreCase("com.happyhour.main")) {
        return true;
        } else {
            return false;
        }
    }
}

我很困惑!我找不到原因。

提前致谢。

您使用的是非常旧的库。考虑切换到最新的官方 GCM 库。让您的侦听器扩展 GcmListenerService。查找相同的官方文档。而且它更容易维护。

确保正确完成下面提到的所有 TODO:

  1. 在GoogleDeveloper Console中注册项目,使用唯一的项目名称和包名称,您的应用包名称和应用项目名称必须与控制台中的相匹配。
  2. 将google_services.json配置文件放在app/目录下。打开它并验证文件中的 API_KEY 是否与 Google 开发人员控制台中配置中显示的匹配,您的包名称是否匹配。同时检查 google 云消息的状态必须是 2.
  3. 按照 Set up a GCM Client App on Android 中的详细步骤进行操作。必须正确实施所有侦听器。
  4. 一旦您的应用 运行,记录生成的 GCM 注册令牌,将其发送到您的服务器并交叉检查在 adb 控制台中登录的令牌与在服务器上收到的令牌,两者必须匹配。
  5. 如果仍然无效,请使用 this 示例应用作为参考。您可以复制侦听器、RegistrationIntentService.java 文件和清单,但不要忘记将包名称更改为您的包名称(在 AndroidManifest.xml 包名称引用中也是如此,专门针对侦听器)

看来华为的 EMUI 界面(在我的例子中是 P8)有一种特殊的处理方式。

安装每个应用程序后,它会提示一个切换按钮,询问您是否允许该特定应用程序在后台运行。

  • 因此,如果应用直接来自 Google Play 商店,它不会提示您这个 "Run in background" 允许按钮,因为它是一个 "trusted source"。

  • 如果您只是从 Android Studio 导出您的 .apk 并将其直接安装到您的 phone 它会提示如上所示的按钮,因为直接安装在您的 phone属于"untrusted source".

  • 的情况
  • 最后,如果您使用 USB 调试器选项在 phone 上安装 .apk,它永远不会提示该按钮,它总是像您按下 "off".每次关闭应用程序时,它都会强制关闭其所有任务。

所以,我所做的是将我的 Android-Studio 生成的 .apk 转移到我的 phone 中并手动安装。当它提示按钮时,我将其切换为 "ON" 就是这样。我终于可以在应用关闭时收到 GCM 消息了![=​​11=]

我认为这是 EMUI bug/special-app-handling 的问题。

特别感谢@TeChNo_DeViL的帮助。