Problem of Timer and TimerTask for counter display all seconds on the screen.
Dear friends,
I have little problem in the use of the timer. I took the timer to display the counter on each period fix repeatedly. but I did not here. Please help me. The code is as shown below.
import java.util.Timer.
java.util.TimerTask to import;
Import net.rim.device.api.ui.Field;
Import net.rim.device.api.ui.UiApplication;
Import net.rim.device.api.ui.component.RichTextField;
Import net.rim.device.api.ui.container.MainScreen;
SerializableAttribute public class TimerTest extends UiApplication
{
Timer;
public static int COUNT = 0;
Public Shared Sub main (String [] args) {}
TimerTest tt = new TimerTest();
tt.enterEventDispatcher ();
}
public TimerTest()
{
a new screen
pushScreen (new TimerMainScreen());
}
SerializableAttribute public class TimerMainScreen extends screen
{
TimerMainScreen()
{
Add (new RichTextField ("Count =" + Integer.toString (COUNT), Field.NON_FOCUSABLE));
try {}
Timer = new Timer();
timer.scheduleAtFixedRate (new TimerMainEvent (), 200, 1000);
}
catch (System.Exception e)
{
do nothing
}
}
private class TimerMainEvent extends TimerTask
{
public void run()
{
Try
{
COUNT ++;
If (COUNTY<>
Add (new RichTextField ("Count =" + Integer.toString (COUNT), Field.NON_FOCUSABLE));
on the other
Timer.Cancel ();
Timer.Cancel ();
}
catch (System.Exception e)
{
Do nothing
}
}
}
}
}
Please let me know where I'm wrong, I want to display all seconds on the screen. If I set the interval 0 then it run TimerMainScreen first time but after all no update, I see on the screen.
I thank in advance
Vimal
Use the following Code in your race.
UiApplication.getUiApplication().invokeLater(new Runnable() { public void run() { add(new RichTextField("Count = " + Integer.toString(COUNT) ,Field.NON_FOCUSABLE)); } });
Tags: BlackBerry Developers
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Panic report *.
panic (cpu 0 0xffffff8016dce5fa appellant): Kernel trap at 0xfffff38016dc7d4a, type 14 = page fault, registers:
CR0: 0X000000008001003B, CR2: 0XFFFFF38016DC7D4A CR3: 0X000000000F852000 CR4: 0 X 0000000000002660
RAX: 0XFFFFFF8052295000, RBX: 0XFFFFFF801E3B8E00 RCX: 0XFFFFF38016DC7D4A RDX: 0 X 0000000000000000
RER: 0XFFFFFF80777FBFB8, PBR: 0 X 0000000000000000, IHR: 0 X 0000000000000000, RDI: 0 X 0000000000000000
R8: 0X00000000009743B4, R9: 0XFFFFFF8022E19D58, R10: 0 X 0000000000000000, R11: 0X0000000CF94BE149
R12: 0XFFFFFF801E3B8DB0, R13: 0XFFFFFF80174EFBC8, R14: 0XFFFFFF80202AA240 R15: 0X0000000CF94BD629
RFL: 0 X 0000000000010246, RIP: 0XFFFFF38016DC7D4A, CS: 0000000000000008, SS 0 X: 0 X 0000000000000010
Lack of CR2: 0xfffff38016dc7d4a, error code: 0 x 0000000000000010, CPU error: 0x0, PL: 0
Backtrace (CPU 0), frame: return address
0xffffff80777fbc40: 0xffffff8016cdab12
0xffffff80777fbcc0: 0xffffff8016dce5fa
0xffffff80777fbea0: 0xffffff8016dec463
0xffffff80777fbec0: 0xfffff38016dc7d4a
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