victorkifer · January 25, 2014 13:19 · Jan 25, 2014
diff --git a/USSDNetworkService.java b/USSDNetworkService.java
@@ -0,0 +1,79 @@
+package com.username.ussd;
+
+import android.app.Service;
+import android.content.Intent;
+import android.content.SharedPreferences;
+import android.os.IBinder;
+import android.os.RemoteException;
+import android.preference.PreferenceManager;
+import android.util.Log;
+
+import com.android.internal.telephony.IExtendedNetworkService;
+import com.username.ussd.R; // your package name
+
+/**
+* Service implements IExtendedNetworkService interface.
+* Service must have name "com.android.ussd.IExtendedNetworkService" of the intent declared
+* in the Android manifest file so com.android.phone.PhoneUtils class bind
+* to this service after system rebooted.
+* Please note service is loaded after system reboot!
+*/
+public class USSDNetworkService extends Service {
+public static final String TAG = "USSDNetworkService";
+public static CharSequence mRetVal = null;
+private static boolean mActive = true; // if active, hide messages
+private boolean change = false; // if mActive was changed while ussd was running, still hide result of this ussd
+private String msgUssdRunning = null;
+
+public static void setActive(boolean active) {
+mActive = active;
+}
+private final IExtendedNetworkService.Stub mBinder = new IExtendedNetworkService.Stub() {
+@Override
+public void setMmiString(String number) throws RemoteException {
+Log.d(TAG, "setMmiString: " + number);
+change = !mActive;
+}
+@Override
+public CharSequence getMmiRunningText() throws RemoteException {
+return msgUssdRunning;
+}
+@Override
+public CharSequence getUserMessage(CharSequence text)
+throws RemoteException {
+Log.d(TAG,text.toString());
+if(!mActive||change) {
+mRetVal = text;
+change = false;
+return null;
+}
+else return text;
+}
+
+@Override
+public void clearMmiString() throws RemoteException {
+Log.d(TAG,"clearMmiString");
+}
+};
+/**
+* Put stamp to the App SharedPreferences when PhoneUtils bind to the service
+* after Android has rebooted. Without reboot phone application does not bind to this service!
+*/
+@Override
+public IBinder onBind(Intent intent) {
+SharedPreferences sp = PreferenceManager.getDefaultSharedPreferences(getBaseContext());
+SharedPreferences.Editor editor = sp.edit();
+editor.putBoolean(TAG, true);
+editor.commit();
+msgUssdRunning = getString(R.string.ussd_running_text);
+return mBinder;
+}
+public IBinder asBinder() {
+return mBinder;
+}
+@Override
+public boolean onUnbind(Intent intent) {
+return super.onUnbind(intent);
+}
+
+}