我有一个监听云消息的广播接收器，我可以很好地显示通知，但是当用户单击通知时，我想将他们路由到带有 intent extras 的正确 Activity 。额外的总是空的。

我可以验证传递给挂起 Intent 的 Intent 在调试时确实有额外的东西。

我尝试了解 Activity onCreate() 方法中的 Intent

***编辑添加工作代码，有几点需要注意，如果任务已经开始，你不能指望调用 oncreate() 方法，所以看起来最好的地方是获得额外的东西onresume 方法。我需要在 Intent 和未决 Intent 上设置标志

@EReceiver
public class MyBroadcastReceiver extends BroadcastReceiver {

private static final String TAG = "googlecloudmessage";
private static final int NOTIFICATION_ID = 1;
private NotificationManager mNotificationManager;
private NotificationCompat.Builder builder;
private Context ctx;

@Pref
public MyPrefs_ myPrefs;

@Override
public void onReceive(Context context, Intent intent) {

    Log.d(TAG, "received gcm message");

    GoogleCloudMessaging gcm = GoogleCloudMessaging.getInstance(context);
    this.ctx = context;

    String messageType = gcm.getMessageType(intent);

    if (messageType != null) {

        if (GoogleCloudMessaging.MESSAGE_TYPE_SEND_ERROR.equals(messageType)) {

        }
        else if (GoogleCloudMessaging.MESSAGE_TYPE_DELETED.equals(messageType)) {

        }
        else if (messageType.equalsIgnoreCase("gcm")) {
            myPrefs.notification().put(true);
            handleNotification(intent);
        }
    }
    setResultCode(Activity.RESULT_OK);
}

private void handleNotification(Intent intent) {

    Bundle bundle = intent.getExtras();

    String typeString = bundle.getString("type");
    String icon = bundle.getString("icon");

    String title = null;
    String body = null;
    Class<?> intentClass = null;
    Integer intentExtraId = null;

    if (typeString == null)
        return;

    int type = Integer.parseInt(typeString);

    switch (type) {

    case 1:

        intentClass = FriendsActivity_.class;

        title = bundle.getString("username");

        break;

    case 2:

        intentClass = UserProfileActivity_.class;

        title = bundle.getString("username");

        intentExtraId = Integer.parseInt(bundle.getString("user_id"));

        break;




    }


    mNotificationManager = (NotificationManager) ctx.getSystemService(Context.NOTIFICATION_SERVICE);


Intent i = new Intent();
    i.setClass(ctx, intentClass);
    i.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK | Intent.FLAG_ACTIVITY_SINGLE_TOP     | Intent.FLAG_ACTIVITY_CLEAR_TOP);
    i.putExtra("gcm", true);
    if (intentExtraId != null) {

        i.putExtra("id", intentExtraId);
    }

    int requestID = (int) System.currentTimeMillis();

    PendingIntent pendingIntent = PendingIntent.getActivity(ctx, requestID, i,     PendingIntent.FLAG_UPDATE_CURRENT);

    NotificationCompat.Builder mBuilder = new NotificationCompat.Builder(ctx);

    mBuilder.setSmallIcon(R.drawable.ic_stat_u);

    Bitmap bmp = null;

    try {
        bmp = Ion.with(ctx, ctx.getResources().getString(R.string.image_container) + icon).asBitmap().get();
    }
    catch (InterruptedException e) {

        e.printStackTrace();
    }
    catch (ExecutionException e) {

        e.printStackTrace();
    }

    if (icon != null) {
        mBuilder.setLargeIcon(bmp);
    }

    mBuilder.setContentTitle(title).setStyle(new NotificationCompat.BigTextStyle().bigText(body))
            .setContentText(body);

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

}

Activity

 @Override
protected void onNewIntent(Intent intent) {
    super.onNewIntent(intent);
    setIntent(intent);
}

@Override
protected void onResume() {

    super.onResume();

    Integer newId = getIntent().getExtras().getInt("id");

    id = newId;


}

最佳答案

这是您用来获取 PendingIntent 的调用:

PendingIntent contentIntent = PendingIntent.getActivity(ctx, 0, i, 0);

如果系统中已经有一个匹配的PendingIntent，这个调用将只返回那个。它可能包含也可能不包含您想要的额外内容。为确保您的附加功能得到使用，您必须确保更新任何当前的 PendingIntent，如下所示:

PendingIntent contentIntent = PendingIntent.getActivity(ctx, 0, i, PendingIntent.FLAG_UPDATE_CURRENT);

关于android - 将 intent extras 从谷歌云消息接收器传递到 Activity 是空的，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/20562898/