NSNotificationCenter语法

问题描述

我有这行代码，但是它是swift的较旧版本，并且我听说语法已更改。代码如下。在Xcode 11中告知其当前语法将非常有帮助。

我也对变化进行了很多研究，但找不到任何东西

dispatchQueue.main.async中的代码是较旧的，我需要更新的语法

语法（从旧版本开始）如下：

private void addProjectLibrary(IJavaProject project,File lib) throws IOException,URISyntaxException,MalformedURLException,CoreException {
    // copy the jar file into the project
    InputStream jarLibraryInputStream = new BufferedInputStream(new FileInputStream(lib));
    IFile libFile = project.getProject().getFile(lib.getName());
    libFile.create(jarLibraryInputStream,false,ipm);

    // create a classpath entry for the library
    IClasspathEntry relativeLibraryEntry = new org.eclipse.jdt.internal.core.ClasspathEntry(
        IPackageFragmentRoot.K_BINARY,IClasspathEntry.CPE_LIBRARY,libFile.getLocation(),ClasspathEntry.INCLUDE_ALL,// inclusion patterns
        ClasspathEntry.EXCLUDE_NONE,// exclusion patterns
        null,null,// specific output folder
        false,// exported
        ClasspathEntry.NO_ACCESS_RULES,// no access rules to combine
        ClasspathEntry.NO_EXTRA_ATTRIBUTES);

    // add the new classpath entry to the project's existing entries
    IClasspathEntry[] oldEntries = project.getRawClasspath();
    IClasspathEntry[] newEntries = new IClasspathEntry[oldEntries.length + 1];
    System.arraycopy(oldEntries,newEntries,oldEntries.length);
    newEntries[oldEntries.length] = relativeLibraryEntry;
    project.setRawClasspath(newEntries,ipm);
}

解决方法

您必须导入NotificationCenter，它将为：

DispatchQueue.main.async {
        NotificationCenter.default.post(name: Name Here,object: nil or Any)
 }