i2pd/android/src/org/purplei2p/i2pd/ForegroundService.java

package org.purplei2p.i2pd;

import android.app.Notification;
import android.app.NotificationManager;
import android.app.PendingIntent;
import android.app.Service;
import android.content.Intent;
import android.os.Binder;
import android.os.IBinder;
import android.util.Log;
import android.widget.Toast;

public class ForegroundService extends Service {
    private static final String TAG="FgService";

    private volatile boolean shown;

    private final DaemonSingleton.StateUpdateListener daemonStateUpdatedListener =
            new DaemonSingleton.StateUpdateListener() {

                @Override
                public void daemonStateUpdate() {
                    try {
                        synchronized (ForegroundService.this) {
                            if (shown) cancelNotification();
                            showNotification();
                        }
                    } catch (Throwable tr) {
                        Log.e(TAG,"error ignored",tr);
                    }
                }
            };


    private NotificationManager notificationManager;

    // Unique Identification Number for the Notification.
    // We use it on Notification start, and to cancel it.
    private int NOTIFICATION = 1;

    /**
     * Class for clients to access.  Because we know this service always
     * runs in the same process as its clients, we don't need to deal with
     * IPC.
     */
    public class LocalBinder extends Binder {
        ForegroundService getService() {
            return ForegroundService.this;
        }
    }

    @Override
    public void onCreate() {
        notificationManager = (NotificationManager)getSystemService(NOTIFICATION_SERVICE);

        synchronized (this) {
            DaemonSingleton.getInstance().addStateChangeListener(daemonStateUpdatedListener);
            if (!shown) daemonStateUpdatedListener.daemonStateUpdate();
        }
        // Tell the user we started.
//        Toast.makeText(this, R.string.i2pd_service_started, Toast.LENGTH_SHORT).show();
    }

    @Override
    public int onStartCommand(Intent intent, int flags, int startId) {
        Log.i("ForegroundService", "Received start id " + startId + ": " + intent);
        return START_STICKY;
    }

    @Override
    public void onDestroy() {
        DaemonSingleton.getInstance().removeStateChangeListener(daemonStateUpdatedListener);
        cancelNotification();
    }

    private synchronized void cancelNotification() {
        // Cancel the persistent notification.
        notificationManager.cancel(NOTIFICATION);

        stopForeground(true);

        // Tell the user we stopped.
//        Toast.makeText(this, R.string.i2pd_service_stopped, Toast.LENGTH_SHORT).show();
        shown=false;
    }

    @Override
    public IBinder onBind(Intent intent) {
        return mBinder;
    }

    // This is the object that receives interactions from clients.  See
    // RemoteService for a more complete example.
    private final IBinder mBinder = new LocalBinder();

    /**
     * Show a notification while this service is running.
     */
    private synchronized void showNotification() {
        // In this sample, we'll use the same text for the ticker and the expanded notification
        CharSequence text = getText(DaemonSingleton.getInstance().getState().getStatusStringResourceId());

        // The PendingIntent to launch our activity if the user selects this notification
        PendingIntent contentIntent = PendingIntent.getActivity(this, 0,
                new Intent(this, I2PDActivity.class), 0);

        // Set the info for the views that show in the notification panel.
        Notification notification = new Notification.Builder(this)
                .setSmallIcon(R.drawable.itoopie_notification_icon)  // the status icon
                .setTicker(text)  // the status text
                .setWhen(System.currentTimeMillis())  // the time stamp
                .setContentTitle(getText(R.string.app_name))  // the label of the entry
                .setContentText(text)  // the contents of the entry
                .setContentIntent(contentIntent)  // The intent to send when the entry is clicked
                .build();

        // Send the notification.
        //mNM.notify(NOTIFICATION, notification);
        startForeground(NOTIFICATION, notification);
        shown=true;
    }

	private static final DaemonSingleton daemon = DaemonSingleton.getInstance();
}