Title says it all, I need to update a JLabel's text, and sure, that works wonders with the basic methods, but my ''''game'''' goes from this:
to this
I need to stop this from happening, I need to update the text of the label which says "a" on the second picture every second, my best bet was overriding paint method and drawing a string with this code:
public void paint(Graphics g){
super.paint(g);
g.setColor(Color.BLACK);
g.drawString("Arca: " + administrador.getCiudad().getArca()
+ " "
+ " Puntos de Belleza: " + administrador.getCiudad().getPuntosBelleza() +
" " +
" Habitantes: " +
administrador.getCiudad().getCantidadHabitantes() + " / "
+ administrador.getCiudad().getCantidadHabitantesDisponibles(), 400, 45);
repaint();
}
but the string flickered nonstop, and so now I'm trying to update a Label's text inside a panel, but then the same thing that is showed in the second picture happens.
My question here is: how can I update the Label's text without it painting everything else?
Please note that using the JLabel (instead of drawstring) I am not using the code posted above, I'm not using any really, just adding it to the panel.
If you'd like a SSCCE concerning this all, you might be able to make use of this:
public class GUIJuego extends JFrame{
private JLabel labelConstrucciones = new JLabel("Construcciones");
private JLabel labelEstados = new JLabel(" ");
public GUIJuego(){
JPanel panelConstruccion = new JPanel(new GridLayout(9,1));
JPanel panelDatosCiudad = new JPanel(new GridLayout(1,2));
JPanel panelMapa = new JPanel(new GridLayout(25,25));
JPanel panelEstado = new JPanel(new FlowLayout());
administrador = new Administrador(new Ciudad(), 0, new Dificultad(this.getMultiplicadorDificultad()), new Constructora());
administrador.administrar(this);
panelDatosCiudad.add(panelEstado);
panelEstado.add(labelEstados);
Timer timer = new Timer(10, new ActionListener(){
public void actionPerformed(ActionEvent e){
labelEstados.setText("Arca: " + administrador.getCiudad().getArca()
+ " "
+ " Puntos de Belleza: " + administrador.getCiudad().getPuntosBelleza() +
" " +
" Habitantes: " +
administrador.getCiudad().getCantidadHabitantes() + " / "
+ administrador.getCiudad().getCantidadHabitantesDisponibles());
}
});
timer.start();
}
}
// Timer which updates the JLabel's values along with its class
public class Administrador {
private Ciudad ciudad;
private int contadorExplosion;
private Dificultad dificultad;
private Constructora constructora;
private TimerTask taskJuego;
public void administrar(GUIJuego juego){
Timer timer = new Timer("Juego");
taskJuego = new TimerTask(){
public void run() {
if((getCiudad().getArca() < 100000 && getCiudad().getArca() > 0) && getCiudad().getPuntosBelleza() < 1000 && getCiudad().getCantidadHabitantes() < 1000){
getEgresosIngresos();
tryExplotar();
} else if(getCiudad().getArca() >= 100000 || getCiudad().getPuntosBelleza() >= 1000 || getCiudad().getCantidadHabitantes() >= 1000){
this.cancel();
JOptionPane.showMessageDialog(null, "¡Ganaste!");
} else if(getCiudad().getArca() <= -1000) {
this.cancel();
JOptionPane.showMessageDialog(null, "¡Perdiste!");
}
}
};
timer.scheduleAtFixedRate(taskJuego, 0, 1000);
}
}
I hope this information is useful.