是否有任何免费的,可立即使用的CSS主题来定制JavaFX应用程序的整体外观,如默认的modena.css?
很高兴在这里收集可用样式表的列表.
我的应用程序正在使用Android的Architecture组件库,并显示从具有无限滚动效果的分页REST api获取的项目列表。
我想做的是将Paging Library与NetworkBoundResource结合使用,以便当用户向下滚动列表时,将从数据库中提取下一个项目并显示是否存在,并且同时调用API以更新数据库中的项目。
我找不到这两种模式同居的任何例子。
这是DAO:
@Query("SELECT * FROM items ORDER BY id DESC")
LivePagedListProvider<Integer,MyItem> loadListPaginated();
Run Code Online (Sandbox Code Playgroud)
这是我的NetworkBoundResource实现:
public class PagedListNetworkBoundResource extends NetworkBoundResource<PagedList<MyItem>, List<MyItem>> {
@Override
protected void saveCallResult(@NonNull List<MyItem> items) {
// Inserting new items into DB
dao.insertAll(items);
}
@Override
protected boolean shouldFetch(@Nullable PagedList<MyItem> data) {
return true;
}
@NonNull
@Override
protected LiveData<PagedList<MyItem>> loadFromDb() {
return Transformations.switchMap(dao.loadListPaginated().create(INITIAL_LOAD_KEY, PAGE_SIZE),
new Function<PagedList<MyItem>, LiveData<List<MyItem>>>() {
@Override
public LiveData<PagedList<MyItem>> apply(final PagedList<MyItem> input) {
// Here I …Run Code Online (Sandbox Code Playgroud) paging android android-architecture-components android-paging
我试图制作一个图像库,就像在下面的图像,但Windows显示图像的不必要的背景,而在Ubuntu它正确显示.

我用以下代码......
public class CommonGalleryPanel extends JPanel implements ActionListener {
public static boolean isGallaryAllowed = false;
private int counter = 0;
private InputStream binaryStream;
private BufferedImage img;
private ImageIcon iconImg;
private JButton[] btns;
private JCheckBox[] checkBox;
private JButton nextButton;
private JButton prevButton;
private ResultSet rs;
private String imageID;
private long lastRecordWas;
private long selectedOrnamentType;
private JPanel[] panels;
private JButton okButton;
private JPanel centerPanel;
private JPanel eastPanel;
private JPanel northPanel;
private JPanel southPanel;
private JComboBox<String> itemsCombo;
private String[] itemsList;
private JButton …Run Code Online (Sandbox Code Playgroud)