Question

我有一个App extends Application类，它具有onCreate()函数，该函数在Android应用程序的开头执行

当用户打开应用程序时，以及收到推送通知时，会触发此操作。推送通知代码如下，并遵循此处的标准做法（http://developer.android.com/guide/topics/ui/notifiers/notifications.html）

如何检查App.onCreate（）内部是否在推送通知收据（通过下面的IntentService）或其他方式（即通过用户通过按下应用程序图标实际打开应用程序）调用该函数？

推送通知代码

public class GCMNotificationIntentService extends IntentService {

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

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

    public static final String TAG = "GCMNotificationIntentService";

    @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.
        String messageType = gcm.getMessageType(intent);

        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_SEND_ERROR.equals(messageType)) {
//                sendNotification("Send error: " + extras.toString());
            } else if (GoogleCloudMessaging.MESSAGE_TYPE_DELETED.equals(messageType)) {
//                sendNotification("Deleted messages on server: " + extras.toString());
            }
            // If it's a regular GCM message, process it
            else if (GoogleCloudMessaging.MESSAGE_TYPE_MESSAGE.equals(messageType)) {

                // if this is a normal message from Earthmiles backend
                if (extras.containsKey(EXTRA_MESSAGE)){
                    sendNotification("" + extras.get(EXTRA_MESSAGE));
                    Log.i(TAG, "Received Server Push Notif: " + extras.toString());
                } else if(extras.containsKey("mp_message")) {
                    String mp_message = intent.getExtras().getString("mp_message");
                    sendNotification(mp_message);
                    Log.i(TAG, "Received Mixpanel Push Notif: " + mp_message);
                }
            }

        }
        GcmBroadcastReceiver.completeWakefulIntent(intent);
    }

    private void sendNotification(String msg) {
        Log.d(TAG, "Preparing to send notification...: " + msg);
        mNotificationManager = (NotificationManager) this.getSystemService(Context.NOTIFICATION_SERVICE);

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

        NotificationCompat.Builder mBuilder = new NotificationCompat.Builder(
                this).setSmallIcon(R.drawable.earthmiles_logo_green)
                .setContentTitle("Earthmiles")
                .setSmallIcon(R.drawable.earthmiles_logo_green)
                .setStyle(new NotificationCompat.BigTextStyle().bigText(msg))
                .setContentText(msg);

        mBuilder.setContentIntent(contentIntent);
        mBuilder.getNotification().flags |= Notification.FLAG_AUTO_CANCEL;
        mBuilder.setAutoCancel(true);
        mNotificationManager.notify(NOTIFICATION_ID, mBuilder.build());
        Log.d(TAG, "Notification sent successfully.");
        App.getAnalytics().track(Emanalytics.RECIEVED_PUSH_NOTIF, new Properties()
                        .putValue("Message Text", msg)
        );

    }
}

Answer 1

即使这是可能的，也不应该这样做。

当上一个活动结束时，Android可能会也可能不会保留VM。如果它没有杀死VM，那么下次启动应用程序时（无论采用何种方式），Android将（或至少可以）重用相同的_id:"gExyMfiivpb4ZtQTb"实例，而无需再调用Application。因此，如果您根据调用onCreate()时确定的某些条件更改应用的行为，则下次启动时可能会出错。

Answer 2

你可以在你已经传递的未决意图的意图上添加额外内容，并且如果它们存在或者不存在，可以在你的主要活动上检查相同的.....如果没有你发送的任何内容，那么就按照捆绑数据进行检查用户启动app不推送通知希望通过推送通知帮助其他。

如何检查App.onCreate（）是通过推送通知还是在用户打开应用程序期间调用的

推送通知代码

2 个答案: