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inside custom component

Java Development

Display custom messages in the request permission dialog

by Retired on ‎02-16-2010 10:16 AM (2,775 Views)


This article applies to the following:

  • BlackBerry® Device Software 4.5 and later
  • BlackBerry® Java® Development Environment (BlackBerry JDE) 4.5 and later


If you want to display custom messages when your application prompts the BlackBerry smartphone user for particular permissions, you can use the net.rim.device.api.applicationcontrol.ReasonProvider interface.

Below is an example of using the ReasonProvider interface to show a custom message for the Event Injection request permission dialog and a generic message for all other request permission dialogs.

import net.rim.device.api.applicationcontrol.*;
import net.rim.device.api.system.*;
import net.rim.device.api.ui.Keypad;

public class Main extends Application {

   private static Main myApp;

   public static void main(String[] args) {
      myApp = new Main();

   public Main() {
      ApplicationPermissionsManager oAppPermManager = ApplicationPermissionsManager.getInstance();
      MyReasonProvider oMyReasonPrvdr = new MyReasonProvider();
      oAppPermManager.addReasonProvider(ApplicationDescriptor.currentApplicationDescriptor(), oMyReasonPrvdr);

      //Inject some keys to trigger the application permissions dialog.
      EventInjector.KeyCodeEvent oEventInjector = new EventInjector.KeyCodeEvent(EventInjector.KeyCodeEvent.KEY_DOWN,(char) Keypad.KEY_VOLUME_DOWN,0);


   private class MyReasonProvider implements ReasonProvider {

      public String getMessage(int permissionID) {
         if (permissionID == ApplicationPermissions.PERMISSION_EVENT_INJECTOR) {
            return "Event Injection permission message.";
         } else {
            return "All other permissions message.";



Note: The message will be viewable from a link in the request permissions dialog. The user will have to click this link to see your custom message.

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