我想使用全屏模式,但是当我按“F”时,我不断收到一个复杂的错误。我正在使用 eclipse,它没有显示任何错误,并且所有内容都已导入。如果有人擅长代码,你能告诉我我做错了什么吗?
代码片段:
GraphicsEnviroment ge = GraphicsEnviroment.getLocalGraphicsEnviroment();
GraphicsDevice gd = ge.GetDefaultScreenDevice();
private boolean FullScreen = false;
JFrame frame = new JFrame(TITLE);
// Not shown: The JFrame is set up etc., and a separate class extends KeyAdapter and runs keyPressed
public void keyPressed(KeyEvent e){
int key = e.getKeyCode();
if(key == KeyEvent.VK_F){
if(!FullScreen){
if(gd.isFullScreenSupported()){
frame.setUndecorated(true);
gd.setFullScreenWindow(frame);
FullScreen = true;
}
} else{
frame.setUndecorated(false);
gd.setFullScreenWindow(null);
}
}
错误:
Exception in thread "AWT-EventQueue-0" java.awt.IllegalComponentStateException: The frame is displayable.
at java.awt.Frame.setUndecorated(Frame.java:923)
at com.Ward.src.main.Game.keyPressed(Game.java:167)
at com.Ward.src.main.KeyboardInput.keyPressed(KeyboardInput.java:15)
at java.awt.Component.processKeyEvent(Component.java:6463)
at java.awt.Component.processEvent(Component.java:6282)
at java.awt.Component.dispatchEventImpl(Component.java:4861)
at java.awt.Component.dispatchEvent(Component.java:4687)
at java.awt.KeyboardFocusManager.redispatchEvent(KeyboardFocusManager.java:1895)
at java.awt.DefaultKeyboardFocusManager.dispatchKeyEvent(DefaultKeyboardFocusManager.java:762)
at java.awt.DefaultKeyboardFocusManager.preDispatchKeyEvent(DefaultKeyboardFocusManager.java:1027)
at java.awt.DefaultKeyboardFocusManager.typeAheadAssertions(DefaultKeyboardFocusManager.java:899)
at java.awt.DefaultKeyboardFocusManager.dispatchEvent(DefaultKeyboardFocusManager.java:727)
at java.awt.Component.dispatchEventImpl(Component.java:4731)
at java.awt.Component.dispatchEvent(Component.java:4687)
at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:735)
at java.awt.EventQueue.access$200(EventQueue.java:103)
at java.awt.EventQueue$3.run(EventQueue.java:694)
at java.awt.EventQueue$3.run(EventQueue.java:692)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:76)
at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:87)
at java.awt.EventQueue$4.run(EventQueue.java:708)
at java.awt.EventQueue$4.run(EventQueue.java:706)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:76)
at java.awt.EventQueue.dispatchEvent(EventQueue.java:705)
at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:242)
at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:161)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:150)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:146)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:138)
at java.awt.EventDispatchThread.run(EventDispatchThread.java:91)