setForeground works.

qt/i2pd_qt/android/AndroidManifest.xml

@@ -1,7 +1,22 @@
 <?xml version="1.0"?>
-<manifest package="org.purplei2p.i2pd" xmlns:android="http://schemas.android.com/apk/res/android" android:versionName="2.8.0" android:versionCode="1" android:installLocation="auto">
+<manifest 
-    <application android:hardwareAccelerated="true" android:name="org.qtproject.qt5.android.bindings.QtApplication" android:label="i2pd">
+    package="org.purplei2p.i2pd" 
-        <activity android:configChanges="orientation|uiMode|screenLayout|screenSize|smallestScreenSize|layoutDirection|locale|fontScale|keyboard|keyboardHidden|navigation" android:name="org.qtproject.qt5.android.bindings.QtActivity" android:label="-- %%INSERT_APP_NAME%% --" android:screenOrientation="unspecified" android:launchMode="singleTop">
+    xmlns:android="http://schemas.android.com/apk/res/android" 
+    android:versionName="2.8.0" android:versionCode="1" android:installLocation="auto">
+    <uses-sdk android:minSdkVersion="11" android:targetSdkVersion="24"/>
+	<supports-screens 
+	    android:largeScreens="true" 
+	    android:normalScreens="true" android:anyDensity="true" android:smallScreens="true"/>
+    <!-- <application android:hardwareAccelerated="true" --> 
+	<application 
+        android:name="org.qtproject.qt5.android.bindings.QtApplication" 
+        android:label="i2pd">
+        <!-- android:configChanges="screenSize|smallestScreenSize" are since api 13, "layoutDirection" since api 17 -->
+        <activity 
+            android:configChanges="orientation|uiMode|screenLayout|locale|fontScale|keyboard|keyboardHidden|navigation" 
+            android:name="org.purplei2p.i2pd.I2PDMainActivity" 
+            android:label="-- %%INSERT_APP_NAME%% --" 
+            android:screenOrientation="unspecified" android:launchMode="singleTop">
             <intent-filter>
                 <action android:name="android.intent.action.MAIN"/>
                 <category android:name="android.intent.category.LAUNCHER"/>
@@ -45,9 +60,8 @@
             <meta-data android:name="android.app.auto_screen_scale_factor" android:value="false"/>
             <!-- auto screen scale factor -->
         </activity>
+        <service android:enabled="true" android:name=".LocalService" />
     </application>
-    <uses-sdk android:minSdkVersion="9" android:targetSdkVersion="23"/>
-    <supports-screens android:largeScreens="true" android:normalScreens="true" android:anyDensity="true" android:smallScreens="true"/>
 
     <!-- The following comment will be replaced upon deployment with default permissions based on the dependencies of the application.
          Remove the comment if you do not require these default permissions. -->

qt/i2pd_qt/android/build.gradle

@@ -0,0 +1,57 @@
+buildscript {
+    repositories {
+        jcenter()
+    }
+
+    dependencies {
+        classpath 'com.android.tools.build:gradle:1.1.0'
+    }
+}
+
+allprojects {
+    repositories {
+        jcenter()
+    }
+}
+
+apply plugin: 'com.android.application'
+
+dependencies {
+    compile fileTree(dir: 'libs', include: ['*.jar'])
+}
+
+android {
+    /*******************************************************
+     * The following variables:
+     * - androidBuildToolsVersion,
+     * - androidCompileSdkVersion
+     * - qt5AndroidDir - holds the path to qt android files
+     *                   needed to build any Qt application
+     *                   on Android.
+     *
+     * are defined in gradle.properties file. This file is
+     * updated by QtCreator and androiddeployqt tools.
+     * Changing them manually might break the compilation!
+     *******************************************************/
+
+    compileSdkVersion androidCompileSdkVersion.toInteger()
+
+    buildToolsVersion androidBuildToolsVersion
+
+    sourceSets {
+        main {
+            manifest.srcFile 'AndroidManifest.xml'
+            java.srcDirs = [qt5AndroidDir + '/src', 'src', 'java']
+            aidl.srcDirs = [qt5AndroidDir + '/src', 'src', 'aidl']
+            res.srcDirs = [qt5AndroidDir + '/res', 'res']
+            resources.srcDirs = ['src']
+            renderscript.srcDirs = ['src']
+            assets.srcDirs = ['assets']
+            jniLibs.srcDirs = ['libs']
+       }
+    }
+
+    lintOptions {
+        abortOnError false
+    }
+}

qt/i2pd_qt/android/project.properties

@@ -11,4 +11,4 @@
 #proguard.config=${sdk.dir}/tools/proguard/proguard-android.txt:proguard-project.txt
 
 # Project target.
-target=android-9
+target=android-11

qt/i2pd_qt/android/res/values/strings.xml

@@ -4,4 +4,7 @@
     <string name="ministro_not_found_msg">Can\'t find Ministro service.\nThe application can\'t start.</string>
     <string name="ministro_needed_msg">This application requires Ministro service. Would you like to install it?</string>
     <string name="fatal_error_msg">Your application encountered a fatal error and cannot continue.</string>
+    <string name="local_service_started">i2pd started</string>
+    <string name="local_service_stopped">i2pd stopped</string>
+    <string name="local_service_label">i2pd</string>
 </resources>

qt/i2pd_qt/android/src/org/purplei2p/i2pd/I2PDMainActivity.java

@@ -0,0 +1,97 @@
+package org.purplei2p.i2pd;
+
+import org.qtproject.qt5.android.bindings.QtActivity;
+
+import android.content.ComponentName;
+import android.content.Context;
+import android.content.Intent;
+import android.content.ServiceConnection;
+import android.os.Bundle;
+import android.os.IBinder;
+
+public class I2PDMainActivity extends QtActivity
+{
+
+	private static I2PDMainActivity instance;
+
+	public I2PDMainActivity() {}
+
+	/* (non-Javadoc)
+	 * @see org.qtproject.qt5.android.bindings.QtActivity#onCreate(android.os.Bundle)
+	 */
+	@Override
+	public void onCreate(Bundle savedInstanceState) {
+		I2PDMainActivity.setInstance(this);
+		super.onCreate(savedInstanceState);
+		
+		//set the app be foreground (do not unload when RAM needed)
+		doBindService();
+	}
+
+	/* (non-Javadoc)
+	 * @see org.qtproject.qt5.android.bindings.QtActivity#onDestroy()
+	 */
+	@Override
+	protected void onDestroy() {
+		I2PDMainActivity.setInstance(null);
+	    doUnbindService();
+		super.onDestroy();
+	}
+
+	public static I2PDMainActivity getInstance() {
+		return instance;
+	}
+
+	private static void setInstance(I2PDMainActivity instance) {
+		I2PDMainActivity.instance = instance;
+	}
+	
+	
+
+//	private LocalService mBoundService;
+
+	private ServiceConnection mConnection = new ServiceConnection() {
+	    public void onServiceConnected(ComponentName className, IBinder service) {
+	        // This is called when the connection with the service has been
+	        // established, giving us the service object we can use to
+	        // interact with the service.  Because we have bound to a explicit
+	        // service that we know is running in our own process, we can
+	        // cast its IBinder to a concrete class and directly access it.
+//	        mBoundService = ((LocalService.LocalBinder)service).getService();
+
+	        // Tell the user about this for our demo.
+//	        Toast.makeText(Binding.this, R.string.local_service_connected,
+//	                Toast.LENGTH_SHORT).show();
+	    }
+
+	    public void onServiceDisconnected(ComponentName className) {
+	        // This is called when the connection with the service has been
+	        // unexpectedly disconnected -- that is, its process crashed.
+	        // Because it is running in our same process, we should never
+	        // see this happen.
+//	        mBoundService = null;
+//	        Toast.makeText(Binding.this, R.string.local_service_disconnected,
+//	                Toast.LENGTH_SHORT).show();
+	    }
+	};
+
+	private boolean mIsBound;
+
+	private void doBindService() {
+	    // Establish a connection with the service.  We use an explicit
+	    // class name because we want a specific service implementation that
+	    // we know will be running in our own process (and thus won't be
+	    // supporting component replacement by other applications).
+	    bindService(new Intent(this, 
+	            LocalService.class), mConnection, Context.BIND_AUTO_CREATE);
+	    mIsBound = true;
+	}
+
+	void doUnbindService() {
+	    if (mIsBound) {
+	        // Detach our existing connection.
+	        unbindService(mConnection);
+	        mIsBound = false;
+	    }
+	}
+}

qt/i2pd_qt/android/src/org/purplei2p/i2pd/LocalService.java

@@ -0,0 +1,92 @@
+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.support.v4.app.NotificationCompat;
+import android.util.Log;
+import android.widget.Toast;
+
+public class LocalService extends Service {
+//    private NotificationManager mNM;
+
+    // Unique Identification Number for the Notification.
+    // We use it on Notification start, and to cancel it.
+    private int NOTIFICATION = R.string.local_service_started;
+
+    /**
+     * 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 {
+        LocalService getService() {
+            return LocalService.this;
+        }
+    }
+
+    @Override
+    public void onCreate() {
+//        mNM = (NotificationManager)getSystemService(NOTIFICATION_SERVICE);
+
+        // Display a notification about us starting.  We put an icon in the status bar.
+        showNotification();
+        
+        
+    }
+
+    @Override
+    public int onStartCommand(Intent intent, int flags, int startId) {
+        Log.i("LocalService", "Received start id " + startId + ": " + intent);
+        return START_NOT_STICKY;
+    }
+
+    @Override
+    public void onDestroy() {
+        // Cancel the persistent notification.
+        //mNM.cancel(NOTIFICATION);
+    	stopForeground(true);
+
+        // Tell the user we stopped.
+        Toast.makeText(this, R.string.local_service_stopped, Toast.LENGTH_SHORT).show();
+    }
+
+    @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 void showNotification() {
+        // In this sample, we'll use the same text for the ticker and the expanded notification
+        CharSequence text = getText(R.string.local_service_started);
+
+        // The PendingIntent to launch our activity if the user selects this notification
+        PendingIntent contentIntent = PendingIntent.getActivity(this, 0,
+                new Intent(this, I2PDMainActivity.class), 0);
+
+        // Set the info for the views that show in the notification panel.
+        Notification notification = new NotificationCompat.Builder(this)
+                .setSmallIcon(R.drawable.itoopie)  // the status icon
+                .setTicker(text)  // the status text
+                .setWhen(System.currentTimeMillis())  // the time stamp
+                .setContentTitle(getText(R.string.local_service_label))  // 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);
+    }
+}

qt/i2pd_qt/android/src/org/qtproject/qt5/android/bindings/QtActivity.java

@@ -62,7 +62,6 @@ import android.content.Intent;
 import android.content.ServiceConnection;
 import android.content.pm.ActivityInfo;
 import android.content.pm.PackageManager;
-import android.content.pm.PackageManager.NameNotFoundException;
 import android.content.pm.PackageInfo;
 import android.content.res.Configuration;
 import android.content.res.Resources.Theme;
@@ -1589,34 +1588,34 @@ public class QtActivity extends Activity
 //@ANDROID-11
     //////////////// Activity API 12 /////////////
 
-//@ANDROID-12
+////@ANDROID-12
-    @Override
+//    @Override
-    public boolean dispatchGenericMotionEvent(MotionEvent ev)
+//    public boolean dispatchGenericMotionEvent(MotionEvent ev)
-    {
+//    {
-        if (QtApplication.m_delegateObject != null  && QtApplication.dispatchGenericMotionEvent != null)
+//        if (QtApplication.m_delegateObject != null  && QtApplication.dispatchGenericMotionEvent != null)
-            return (Boolean) QtApplication.invokeDelegateMethod(QtApplication.dispatchGenericMotionEvent, ev);
+//            return (Boolean) QtApplication.invokeDelegateMethod(QtApplication.dispatchGenericMotionEvent, ev);
-        else
+//        else
-            return super.dispatchGenericMotionEvent(ev);
+//            return super.dispatchGenericMotionEvent(ev);
-    }
+//    }
-    public boolean super_dispatchGenericMotionEvent(MotionEvent event)
+//    public boolean super_dispatchGenericMotionEvent(MotionEvent event)
-    {
+//    {
-        return super.dispatchGenericMotionEvent(event);
+//        return super.dispatchGenericMotionEvent(event);
-    }
+//    }
-    //---------------------------------------------------------------------------
+//    //---------------------------------------------------------------------------
-
+//
-    @Override
+//    @Override
-    public boolean onGenericMotionEvent(MotionEvent event)
+//    public boolean onGenericMotionEvent(MotionEvent event)
-    {
+//    {
-        if (QtApplication.m_delegateObject != null  && QtApplication.onGenericMotionEvent != null)
+//        if (QtApplication.m_delegateObject != null  && QtApplication.onGenericMotionEvent != null)
-            return (Boolean) QtApplication.invokeDelegateMethod(QtApplication.onGenericMotionEvent, event);
+//            return (Boolean) QtApplication.invokeDelegateMethod(QtApplication.onGenericMotionEvent, event);
-        else
+//        else
-            return super.onGenericMotionEvent(event);
+//            return super.onGenericMotionEvent(event);
-    }
+//    }
-    public boolean super_onGenericMotionEvent(MotionEvent event)
+//    public boolean super_onGenericMotionEvent(MotionEvent event)
-    {
+//    {
-        return super.onGenericMotionEvent(event);
+//        return super.onGenericMotionEvent(event);
-    }
+//    }
-    //---------------------------------------------------------------------------
+//    //---------------------------------------------------------------------------
-//@ANDROID-12
+////@ANDROID-12
 
 }

qt/i2pd_qt/i2pd_qt.pro

@@ -20,6 +20,11 @@ BOOST_PATH = /mnt/media/android/Boost-for-Android-Prebuilt
 OPENSSL_PATH = /mnt/media/android/OpenSSL-for-Android-Prebuilt
 IFADDRS_PATH = /mnt/media/android/android-ifaddrs
 
+# Steps in Android SDK manager:
+# 1) Check Extras/Google Support Library https://developer.android.com/topic/libraries/support-library/setup.html
+# 2) Check API 11
+# Finally, click Install.
+
 SOURCES += DaemonQT.cpp\
         mainwindow.cpp \
         ../../HTTPServer.cpp ../../I2PControl.cpp ../../UPnP.cpp ../../Daemon.cpp ../../Config.cpp \