我一直在尝试并且未能在OSX系统的主显示屏上使用java全屏模式。无论我尝试过什么,我似乎都无法摆脱显示屏顶部的“苹果”菜单栏。我真的需要在整个屏幕上画画。谁能告诉我如何摆脱菜单?
我附上了一个展示问题的示例类 - 在我的系统上,菜单仍然可见,我希望看到一个完全空白的屏幕。
import java.awt.*;
import java.awt.event.*;
import javax.swing.JFrame;
public class FullScreenFrame extends JFrame implements KeyListener {
public FullScreenFrame () {
addKeyListener(this);
setUndecorated(true);
GraphicsDevice gd = GraphicsEnvironment.getLocalGraphicsEnvironment().getDefaultScreenDevice();
if (gd.isFullScreenSupported()) {
try {
gd.setFullScreenWindow(this);
}
finally {
gd.setFullScreenWindow(null);
}
}
else {
System.err.println("Full screen not supported");
}
setVisible(true);
}
public void keyTyped(KeyEvent e) {}
public void keyPressed(KeyEvent e) {}
public void keyReleased(KeyEvent e) {
setVisible(false);
dispose();
}
public static void main (String [] args) {
new FullScreenFrame();
}
}
答案 0 :(得分:12)
我认为你的问题在这里:
try {
gd.setFullScreenWindow(this);
}
finally {
gd.setFullScreenWindow(null);
}
finally
块总是被执行,所以这里发生的是你的窗口在短暂的瞬间变成全屏(如果那样)然后立即放弃屏幕。
此外,根据Javadocs,如果之前曾调用setVisible(true)
,则无需setFullScreenWindow(this)
。
所以我会将构造函数更改为:
public FullScreenFrame() {
addKeyListener(this);
GraphicsDevice gd =
GraphicsEnvironment.getLocalGraphicsEnvironment().getDefaultScreenDevice();
if (gd.isFullScreenSupported()) {
setUndecorated(true);
gd.setFullScreenWindow(this);
} else {
System.err.println("Full screen not supported");
setSize(100, 100); // just something to let you see the window
setVisible(true);
}
}
答案 1 :(得分:7)
在OS X(10.7及更高版本)上,最好使用可用的本机全屏模式。你应该使用:
com.apple.eawt.FullScreenUtilities.setWindowCanFullScreen(window,true);
com.apple.eawt.Application.getApplication().requestToggleFullScreen(window);
其中window
是您要全屏显示的窗口(JFrame
等)
答案 2 :(得分:0)
这有点迂腐,答案是完全遵循教程,它具有必需品,并且比在帖子中更适合扩展。上面的示例不起作用,因为它缺少validate();
和一些内容。我怀疑Java Tutorial不会很快消失。以下是修改后的版本
package test;
import java.awt.*;
import java.awt.event.*;
import javax.swing.JFrame;
import javax.swing.JLabel;
public class FullScreenFrame extends JFrame implements KeyListener {
public FullScreenFrame () {
addKeyListener(this);
setUndecorated(true);
GraphicsDevice gd = GraphicsEnvironment.getLocalGraphicsEnvironment().getDefaultScreenDevice();
if (gd.isFullScreenSupported()) {
try {
this.getContentPane().addKeyListener(this);
this.getContentPane().setLayout(new BorderLayout());
this.getContentPane().add("Center", new JLabel("Full Screen, back to normal in 10 seconds"));
gd.setFullScreenWindow(this);
validate();
try {
Thread.sleep(10000);
} catch (InterruptedException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
} finally {
gd.setFullScreenWindow(null);
}
} else {
System.err.println("Full screen not supported");
}
}
public void keyTyped(KeyEvent e) {
System.out.println("keyTyped:" + e.getKeyChar() + "source:" + e.getSource() );
}
public void keyPressed(KeyEvent e) {
System.out.println("keyPressed:" + e.getKeyChar() + "source:" + e.getSource() );
}
public void keyReleased(KeyEvent e) {
System.out.println("keyReleased:" + e.getKeyChar() + "source:" + e.getSource() );
setVisible(false);
dispose();
}
public static void main (String [] args) {
new FullScreenFrame();
}
}