Question

When i use this method, its throws illegal state expression on blackberry simulator.

protected boolean keyChar(char c, int status, int time) 
    {
        if (c == Keypad.KEY_ESCAPE) 
        {
                      UiApplication.getUiApplication().popScreen(UiApplication.getUiApplication().getActiveScreen());
        }
                return super.keyChar(c, status, time);

}

if i give the return type true, No error display on simulator.

when i use the super.keyChar(c,status,time). it throw illegal state expression.

But in device no error display. Only on blackberry simulator. wht is the problem on it.

Answer 1

try this:

protected boolean keyChar(char c, int status, int time) 
{
    if (c == Keypad.KEY_ESCAPE) 
    {
        UiApplication.getUiApplication().invokeAndWait(new Runnable() {
            public void run() {
                UiApplication.getUiApplication().popScreen(UiApplication.getUiApplication().getActiveScreen());
            }
        });
        return true;
    }
    return super.keyChar(c, status, time);
}