Java Development

[egirotto]

Hi,

I need to detect if the user press the lock button on the top left of BB (is a 8900 bold).

I read in a post that there isn't a specific listener but is possible to detect it implementing a MemoryCleanerListener because as RIM say:

"By default, the memory cleaner application runs on a BlackBerry® device when the BlackBerry device is inactive for a specified period of time. You or a BlackBerry device user can change when the memory cleaner application runs when any the following conditions exist:

• The BlackBerry device user synchronizes the BlackBerry device with a computer.
• The BlackBerry device user locks the BlackBerry device.
• The BlackBerry device locks after it is inactive for a specified period of time.
• The BlackBerry device user changes the time or time zone on the BlackBerry device."

I try it with something like this in my main application class:

MemoryCleanerDaemon.addListener(new MemoryCleanerListener() {
		
  public String getDescription() {
	return "listener";
  }
		
  public boolean cleanNow(int event) {
    if (event==MemoryCleanerListener.EVENT_DEVICE_LOCK){
	//do something
    }
    return false;
}
	

I try it in simulator with debbugger with a break point in the first line of listener but when i press the button nothing happens.

Any idea?

Thanks for help!

[egirotto · Accepted solution]

Hi,

I resolve the problem moving the MemoryCleanerDaemon.addListener after the enterEventDispatcher.

The MemoryCleanerListener working and using ApplicationManager method isSystemLocked I know when the user press to lock and when to unlock

Best regards

[Thecr0w]

Does it work well in os 5.0 or 6.0?Or are you do it in os 5.0 or 6.0?

[lokiBB]

---

egirotto wrote:

Hi,

I resolve the problem moving the MemoryCleanerDaemon.addListener after the enterEventDispatcher.

The MemoryCleanerListener working and using ApplicationManager method isSystemLocked I know when the user press to lock and when to unlock

Best regards

---

if you move emoryCleanerDaemon.addListener after the enterEventDispatcher. MemoryCleanerDaemon.addListener wont get executed right?

i dont know how you got it working. enterEventDispatcher will make main thread to listen for the UI events right?

After entering to event listening it wont come back to execute MemoryCleanerDaemon.addListener right?

any one please help me. i want to know when user presses lock button. I used following code but not getting the event. Even if i place MemoryCleanerDaemon.addListener before theApp.enterEventDispatcher() also i am not getting the event. please help.

public static void main( String[] args ) {
        // Create a new instance of the application and make the currently
        // running thread the application's event dispatch thread.
        HelloBlackBerry theApp = new HelloBlackBerry();
		theApp.enterEventDispatcher();
        MemoryCleanerDaemon.addListener(new MemoryCleanerListener() {
			   public boolean cleanNow(int event) {
			       if(event==MemoryCleanerListener.EVENT_DEVICE_LOCK){
			           //do something
			    	   System.out.println("EVENT_DEVICE_LOCK");
			        }
				   System.out.println("--------------------EVENT_DEVICE_LOCK---------------------------------------");
			       return false;
			   }
			   public String getDescription() {
			       // TODO Auto-generated method stub
			      return "listener";
			    } 
			 });
    }

[MalaWidiyanto]

I have the same problem, anyone can help us to solve it? please 

[MalaWidiyanto]

I have solve my similar problem with this methode :
- Backlight.isEnable()
- Backlight.enable(false);

- Backlight.enable(true);

check this out : http://www.blackberry.com/developers/docs/5.0.0api/net/rim/device/api/system/Backlight.html