?? errorscreen.java
字號:
import javax.microedition.lcdui.*;
class ErrorScreen extends Alert
{
private static Image image;
private static Display display;
private static ErrorScreen instance = null;
private ErrorScreen()
{
super("Error");
setType(AlertType.ERROR);
setTimeout(5000);
setImage(image);
}
static void init(Image img, Display disp)
{
image = img;
display = disp;
}
static void showError(String message, Displayable next)
{
if (instance == null)
{
instance = new ErrorScreen();
}
instance.setTitle("Error");
instance.setString(message);
display.setCurrent(instance, next);
}
}
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