Android意图->活动交互

Question

我有按书完成的gcm服务接收器。 这是主要部分

        //Magick. Create Intent that will show alert.
    mNotificationManager = (NotificationManager) this.getSystemService(Context.NOTIFICATION_SERVICE);
    Intent ma = new Intent(this, Home.class);
    Bundle b = ma.getExtras();
    if (b != null && b.containsKey("Alert_call"))
    {ma.removeExtra("Alert_call");}
    if (b != null && b.containsKey("Alert_poi"))
    {ma.removeExtra("Alert_poi");}

    ma.putExtra("Alert_call", true);
    ma.putExtra("Alert_poi", msg);
    PendingIntent contentIntent = PendingIntent.getActivity(this, 0,ma, 0);

    //Make the notification itself.
    NotificationCompat.Builder mBuilder =
            new NotificationCompat.Builder(this)
    .setSmallIcon(p.GetAlertIconFromType())
    .setContentTitle(p.GetAlertHeaderFromType())
    .setStyle(new NotificationCompat.BigTextStyle()
    .bigText(p.coordsAdress + "\n" + p.ShortDesc))
    .setSound(RingtoneManager.getDefaultUri(RingtoneManager.TYPE_NOTIFICATION))//Do the ring
    .setDefaults(Notification.DEFAULT_VIBRATE)//Do the vibe
    .setDefaults(Notification.DEFAULT_LIGHTS)//Do the Lights blink
    .setContentText(p.coordsAdress + "\n" + p.ShortDesc);

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

现在，在活动方面，我正在捕获此意图的捆绑包，并查看是否具有这些“ Alert_call”参数。 如果是这样-使用这些ti显示一些特定信息。

        //Magick. Create Intent that will show alert.
    mNotificationManager = (NotificationManager) this.getSystemService(Context.NOTIFICATION_SERVICE);
    Intent ma = new Intent(this, Home.class);
    Bundle b = ma.getExtras();
    if (b != null && b.containsKey("Alert_call"))
    {ma.removeExtra("Alert_call");}
    if (b != null && b.containsKey("Alert_poi"))
    {ma.removeExtra("Alert_poi");}

    ma.putExtra("Alert_call", true);
    ma.putExtra("Alert_poi", msg);
    PendingIntent contentIntent = PendingIntent.getActivity(this, 0,ma, 0);

    //Make the notification itself.
    NotificationCompat.Builder mBuilder =
            new NotificationCompat.Builder(this)
    .setSmallIcon(p.GetAlertIconFromType())
    .setContentTitle(p.GetAlertHeaderFromType())
    .setStyle(new NotificationCompat.BigTextStyle()
    .bigText(p.coordsAdress + "\n" + p.ShortDesc))
    .setSound(RingtoneManager.getDefaultUri(RingtoneManager.TYPE_NOTIFICATION))//Do the ring
    .setDefaults(Notification.DEFAULT_VIBRATE)//Do the vibe
    .setDefaults(Notification.DEFAULT_LIGHTS)//Do the Lights blink
    .setContentText(p.coordsAdress + "\n" + p.ShortDesc);

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

-> DisplayView的一部分

        //Magick. Create Intent that will show alert.
    mNotificationManager = (NotificationManager) this.getSystemService(Context.NOTIFICATION_SERVICE);
    Intent ma = new Intent(this, Home.class);
    Bundle b = ma.getExtras();
    if (b != null && b.containsKey("Alert_call"))
    {ma.removeExtra("Alert_call");}
    if (b != null && b.containsKey("Alert_poi"))
    {ma.removeExtra("Alert_poi");}

    ma.putExtra("Alert_call", true);
    ma.putExtra("Alert_poi", msg);
    PendingIntent contentIntent = PendingIntent.getActivity(this, 0,ma, 0);

    //Make the notification itself.
    NotificationCompat.Builder mBuilder =
            new NotificationCompat.Builder(this)
    .setSmallIcon(p.GetAlertIconFromType())
    .setContentTitle(p.GetAlertHeaderFromType())
    .setStyle(new NotificationCompat.BigTextStyle()
    .bigText(p.coordsAdress + "\n" + p.ShortDesc))
    .setSound(RingtoneManager.getDefaultUri(RingtoneManager.TYPE_NOTIFICATION))//Do the ring
    .setDefaults(Notification.DEFAULT_VIBRATE)//Do the vibe
    .setDefaults(Notification.DEFAULT_LIGHTS)//Do the Lights blink
    .setContentText(p.coordsAdress + "\n" + p.ShortDesc);

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

现在，我面临的问题是：

如果我从此警报启动活动-一切正常。 但是，如果我已经准备好打开此活动（例如，睡着了），然后按下此警报-我收到的空值是INtent中的参数，或者是旧参数（用于启动活动的参数）。

因此，问题是：

看来我需要了解此运行的活动意图，并在按Alert时在其中添加新数据。

那是对的吗？ 如果是这样-范，您可以指导我在哪里阅读？

Answer 1

解决方案很简单...

    PendingIntent contentIntent = PendingIntent.getActivity(this, 0,ma, PendingIntent.FLAG_UPDATE_CURRENT);