I am trying to make splash-screen for a game, both of which are JFrames. I want the splash-screen to open for 3 seconds, then be disposed of. The JFrame for the main part of the game needs to be created and shown immediately afterwards. I am using Thread.sleep() to wait for 3 seconds but the loading page is delayed 3 seconds instead of the game. Code is below:
new load();
try
{
Thread.sleep(3000);
dispose();
new gameInfo();
}
catch (InterruptedException ex)
{
Logger.getLogger(home.class.getName()).log(Level.SEVERE, null, ex);
}
you need to run it on new thread because what you did for now is freezing the main thread and it's affecting the GUI and make it freeze too. So, you need to wait for 3000ms in the background, and the only simply way is make a new thread. here's is the pseudocode
new load();
new Thread(){
public void run(){
try {
Thread.sleep(3000);
//i think you should call this 2 lines below in main thread
dispose();
new gameInfo();
} catch (InterruptedException ex) {
Logger.getLogger(home.class.getName()).log(Level.SEVERE, null, ex);
}
}
}.start();
this code not going to work, this is just the pseudocode. i need to see the whole class to make it able to run.
new load();
new Thread(){
public void run(){
try {
Thread.sleep(3000);
//i think you should call this 2 lines below in main thread
dispose();
new gameInfo();
} catch (InterruptedException ex) {
Logger.getLogger(home.class.getName()).log(Level.SEVERE, null, ex);
}
}
}.start();
Related
I'm trying to display the text of Successful Login before a system sleep for 3,000 miliseconds. Its not working when I place it right after the set text. How do I get it to display then pause so there is a bit of delay so the user knows that they loging in?
After the user correctly logs-in it will continue to a different class where the JFrame will close
l_Message.setForeground(Color.green);
l_Message.setText("Succesful Login");
try{
Thread.sleep(3000);
} catch(InterruptedException ex) {
Thread.currentThread().interrupt();
}
PLOGIN post_login = new PLOGIN();
post_login.postlogin_UI(login_JFrame);
See Concurrency in Swing for the reason why you're having problems
See How to use Swing Timers for a possible solution
import javax.swing.Timer
//...
l_Message.setForeground(Color.green);
l_Message.setText("Succesful Login");
Timer timer = new Timer(3000, new ActionListener() {
#Override
public void actionPerformed(ActionEvent e) {
PLOGIN post_login = new PLOGIN();
post_login.postlogin_UI(login_JFrame);
}
});
timer.start();
Assuming that you are calling this from outside of the GUI thread(which I believe that you should be), you could try the following:
EventQueue.invokeLater(() -> {
l_Message.setForeground(Color.green);
l_Message.setText("Succesful Login");
});
try{
Thread.sleep(3000);
} catch(InterruptedException ex) {
Thread.currentThread().interrupt();
}
PLOGIN post_login = new PLOGIN();
post_login.postlogin_UI(login_JFrame);
i.e. schedule GUI operations to the GUI thread
I want to display a text before executing the function mediaPlayer(). During the execution of the mediaplayer, I sleep the thread. That's ok because nothing needs to happen then (then just need to listen).
However, the last text: "Listen to...", is not being displayed (except with a few seconds delay). It there a way to flush the jFrame first before the thread goes to sleep?
expText.setText("Listen to the song and give a rating when it finishes.");
startButton.setEnabled(false);
//play sound
try {
mediaPlayer();
//wait for the duration of the stimuli
Thread.sleep(stimDuration);
...
The setText won't display until the EDT renders another frame, which it can't do because it's busy sleeping for stimDuration amount of time.
Try to play the sound on a separate thread, play the sound on some other thread, detect when the sound stops, and then do another action on the EDT where you change expText back to the original text that you had.
The following combined use of Threads and Swing Timer solved the problem.
Thread t2 = new Thread(new Runnable() {
public void run() {
try {
startButton.setEnabled(false);
startButton.setVisible(false);
buttonsPanel.setEnabled(false);
buttonsPanel.setVisible(false);
expText.setText("Listen to the song and give a rating when it finishes.");
} catch (Exception e1) {
e1.printStackTrace();
}
}
});
t2.start();
Thread t1 = new Thread(new Runnable() {
public void run() {
// code goes here.
try {
mediaPlayer();
// Thread.sleep(5000);
} catch (Exception e1) {
e1.printStackTrace();
}
}
});
t1.start();
ActionListener taskPerformer = new ActionListener() {
public void actionPerformed(ActionEvent evt) {
//...Perform a task...
resultButtonGroup.clearSelection();
startButton.setEnabled(true);
startButton.setVisible(true);
buttonsPanel.setVisible(true);
}
};
Timer timer = new Timer(stimDuration ,taskPerformer);
timer.setRepeats(false);
timer.start();
I'm trying to make an JavaFX application that tracks the movement of my mouse for this im using this code in the controller class:
new Thread(new Runnable() {
#Override public void run() {
while (Main.running) {
Platform.runLater(new Runnable() {
#Override
public void run() {
try {
label.setText(MouseInfo.getPointerInfo().getLocation().toString());
Thread.sleep(1000);
} catch (InterruptedException e) {
e.printStackTrace();
}
}
});
}
}
}).start();
But it couses my application to lag big time.
How should i fix this lag problem?
Thanks i fixed it:
new Thread(new Runnable() {
#Override public void run() {
while (Main.running) {
Platform.runLater(new Runnable() {
#Override
public void run() {
label.setText(MouseInfo.getPointerInfo().getLocation().toString());
}
});
try {
Thread.sleep(200);
} catch (InterruptedException e) {
e.printStackTrace();
}
}
}
}).start();
What you doing is letting Javafx Application thread Thread.sleep(1000); <-wait
Any long term action you shoud put OUT of JFX-AT. And only update your ui components on it.
new Thread(()->{
while(Main.running){
Platform.runLater(()->{
//updateui component
//this is updating on FXAT
});
Thread.sleep(time)//This way you dont let JFXAT wait
}
}).start();
//Not sure if formatted and curly braces correctly.Bud you hopefully understand.Make sure you know which thread you let wait.Otherwise you wont be able to recieve events from paused jfxat.
You should put your Thread.sleep() call in your while loop and not in your Runnable, otherwise the loop keeps posting a lot of runLater tasks and those tasks stops the event thread for 1000ms after updating your mouse position
You call Thread.sleep(long) inside a Runnable that will be executed on the UI thread. If the thread is sleeping, it can't do anything else but sleep there. If you want your label to update every 1000 milliseconds, you can use the java.util.Timer class to make that happen.
I'm creating a simple video poker program and right now I'm working on the action that's performed after the user has specified the cards he wants to hold, and replace the discarded cards with new cards after the draw. I have an Action where I want to replace the cards one by one with a delay between all replacements, but with the code I have below, it'll sleep for 500 ms multiplied by the number of cards I have to replace and THEN replace all the cards at once, rather than replace it one at a time as I want. Any help is greatly appreciated!
Action drawAction = new AbstractAction() {
public void actionPerformed(ActionEvent e) {
int deckPos = 5;
if((holdValFirst.getText()).equals("HELD")){}
else{
holdFirst.setIcon(new ImageIcon(((deck.getDeck())[deckPos]).getCardName()+".gif"));
deckPos++;
try
{
Thread.sleep(500);
}catch (InterruptedException ie){
System.out.println(ie.getMessage());
}
}
if((holdValSecond.getText()).equals("HELD")){}
else{
holdSecond.setIcon(new ImageIcon(((deck.getDeck())[deckPos]).getCardName()+".gif"));
deckPos++;
try
{
Thread.sleep(500);
}catch (InterruptedException ie){
System.out.println(ie.getMessage());
}
}
if((holdValThird.getText()).equals("HELD")){}
else{
holdThird.setIcon(new ImageIcon(((deck.getDeck())[deckPos]).getCardName()+".gif"));
deckPos++;
try
{
Thread.sleep(500);
}catch (InterruptedException ie){
System.out.println(ie.getMessage());
}
}
if((holdValFourth.getText()).equals("HELD")){}
else{
holdFourth.setIcon(new ImageIcon(((deck.getDeck())[deckPos]).getCardName()+".gif"));
deckPos++;
try
{
Thread.sleep(500);
}catch (InterruptedException ie){
System.out.println(ie.getMessage());
}
}
if((holdValFifth.getText()).equals("HELD")){}
else{
holdFifth.setIcon(new ImageIcon(((deck.getDeck())[deckPos]).getCardName()+".gif"));
deckPos++;
}
}
};
When you sleep inside the event dispatch thread (EDT), the GUI is frozen. Every long running task should be done outside of the EDT, and all swing manipulations should be done in the EDT.
You should use a SwingWorker to sleep in another thread, and publish some progress every 500ms. Or you could use a javax.swing.Timer which would fire an event every 500ms.
I'm trying to create a button that changes color of the background and then removes itself from the JFrame after a set amount of time, but instead of changing color it just stays pressed for the duration of wait.
public void actionPerformed(ActionEvent e) {
setBackground(Color.red);
try{
Thread.sleep(10000);
}
catch (InterruptedException iE) {
}
frame.remove(this);
}
Can anyone see what im doing wrong?
Your sleep is occurring in the main UI thread, hence the reason the button just stays pressed. If you want a sleep you should create a new thread, get that to sleep, then from within that thread you can get the frame to remove the button.
new Thread() {
public void run() {
try {
Thread.sleep(10000);
// Now do what is needed to remove the button.
} catch (InterruptedException e) {
e.printStackTrace();
}
};
}.start();