Question

我是android新手。我正在学习android中的gcm集成部分，我遇到了这个问题，我无法调用未在清单中标记为启动器的活动。我能够收到gcm通知和所有数据，但无法调用该活动。为什么会这样？只有当应用程序从后台删除时，我才会遇到此问题。当应用程序未运行或从后台删除时，有没有办法存储和检索应用程序上下文？

public class NotificationsListenerService extends GcmListenerService {

    public static final int MESSAGE_NOTIFICATION_ID = 435345;
    private static final String TAG = "MyGcmListenerService";

    @Override
    public void onMessageReceived(String from, Bundle data) {
        //String message = data.getString("message");
        String message = data.getBundle("notification").getString("body");
        Log.d(TAG, "From: " + from);
        Log.d(TAG, "Message: " + message);
        Log.d(TAG, "GCM DATA: " + data);

        try{
            String CODE=data.getString("code");
            if(CODE!=null){
                switch (CODE){
                    case "666":
                        String id=data.getString("id");
                        Code666(id);
                        break;
                }
            }
        }catch (Exception e){
            e.printStackTrace();
        }
    }

    private void Code666(String _id) {
        Context context = getBaseContext();
        Intent intent = new Intent(this, SecondActivity.class);
        intent.putExtra("_id",_id);
        intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
        PendingIntent pendingIntent = PendingIntent.getActivity(this, 0 /* Request code */, intent,
                PendingIntent.FLAG_ONE_SHOT);
        NotificationCompat.Builder mBuilder = new NotificationCompat.Builder(context)
                .setSmallIcon(R.drawable.floatinglogo)
                .setContentTitle("Horn OK")
                .setContentText("HelpNeeded!")
                .setAutoCancel(true)
                .setContentIntent(pendingIntent);
        NotificationManager mNotificationManager = (NotificationManager) context
                .getSystemService(Context.NOTIFICATION_SERVICE);
        mNotificationManager.notify(MESSAGE_NOTIFICATION_ID, mBuilder.build());
    }
}

提前致谢！ Sidharth

Answer 1

在意图

中添加这两行

 intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK | Intent.FLAG_ACTIVITY_SINGLE_TOP);
 intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);

我正在使用此方法，它工作正常，HomeActivity不是我的启动器活动

private void sendNotification() {
    Intent intent = new Intent(this, HomeActivity.class);
    intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK | Intent.FLAG_ACTIVITY_SINGLE_TOP);
    intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
    PendingIntent pendingIntent = PendingIntent.getActivity(this, 0 /* Request code */, intent,
            PendingIntent.FLAG_UPDATE_CURRENT);

    Uri defaultSoundUri = RingtoneManager.getDefaultUri(RingtoneManager.TYPE_NOTIFICATION);
    NotificationCompat.Builder notificationBuilder = (NotificationCompat.Builder) new NotificationCompat.Builder(this)
            .setSmallIcon(R.drawable.ic_launcher)
            .setContentTitle(getString(R.string.app_name))
            .setContentText(messageBody)
            .setAutoCancel(true)
            .setSound(defaultSoundUri)
            .setContentIntent(pendingIntent);

    NotificationManager notificationManager =
            (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);

    notificationManager.notify(0 /* ID of notification */, notificationBuilder.build());
}

如何从GcmListenerService调用非启动器类？

1 个答案: