Question

我在项目中添加了一个SWT窗口

public class swtUI {
    protected Shell shell;
    protected Display display;

    public static void launch() {
        try {
            swtUI window = new swtUI();
            window.open();
        } catch (Exception e) {
            e.printStackTrace();
        }
    }

    public void open() {
        display = Display.getDefault();
        createContents();
        shell.open();
        shell.layout();

        while (!shell.isDisposed()) {
            if (!display.readAndDispatch()) {
                display.sleep();
            }
        }
        display.dispose();
    }

    /**
     * Create contents of the window.
     */
    protected void createContents() {
        shell = new Shell();

        // create all controls
        blablabal
    }
}

并在main()中将其称为

public static void main(String[] args) {
    swtUI.launch();
    System.out.println("\nComplete");   
}

在Linux上运行没问题。但是当我用maxos swt.jar替换linux swt.jar并在mac上运行时，我得到了异常：

    ***WARNING: Display must be created on main thread due to Cocoa restrictions.
org.eclipse.swt.SWTException: Invalid thread access
    at org.eclipse.swt.SWT.error(Unknown Source)
    at org.eclipse.swt.SWT.error(Unknown Source)
    at org.eclipse.swt.SWT.error(Unknown Source)
    at org.eclipse.swt.widgets.Display.error(Unknown Source)
    at org.eclipse.swt.widgets.Display.createDisplay(Unknown Source)
    at org.eclipse.swt.widgets.Display.create(Unknown Source)
    at org.eclipse.swt.graphics.Device.<init>(Unknown Source)
    at org.eclipse.swt.widgets.Display.<init>(Unknown Source)
    at org.eclipse.swt.widgets.Display.<init>(Unknown Source)
    at org.eclipse.swt.widgets.Display.getDefault(Unknown Source)
    at edu.rockefeller.casanovaLab.csvCheck.CsvSuiteGUI.open(CsvSuiteGUI.java:129)
    at edu.rockefeller.casanovaLab.csvCheck.CsvSuiteGUI.launch(CsvSuiteGUI.java:119)
    at edu.rockefeller.casanovaLab.csvCheck.Program.main(Program.java:19)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
    at java.lang.reflect.Method.invoke(Method.java:597)
    at org.eclipse.jdt.internal.jarinjarloader.JarRsrcLoader.main(JarRsrcLoader.java:58)

我对SWT很新。我该如何更改代码以使其在Mac上运行？

由于

Answer 1

似乎在this FAQ中提到了这一点。来自同一个链接：

要解决此问题，您必须将-XstartOnFirstThread选项传递给java可执行文件，如下所示：

java -XstartOnFirstThread -cp swt.jar:. ControlExample

SWT窗口在Linux上可运行但在Mac上无法运行

1 个答案: