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我有这个类的FragmentPagerAdapter。做一个循环ViewPager
我怎么能把它变成循环ViewPager？所以从A - B - C - A（后面）。我在这个论坛上尝试了一些解决方案，但它并没有给我带来任何结果。
public class RootCategoriesPagerAdapter extends FragmentPagerAdapter {
private static final Logger LOG = LoggerFactory.getLogger(RootCategoriesPagerAdapter.class.getSimpleName());
private final AppDomainResult appDomain;
public RootCategoriesPagerAdapter(final AppDomainResult appDomain, final FragmentManager fragmentManager) {
super(fragmentManager);
this.appDomain = checkNotNull(appDomain, "appDomain");
}
@Override
public int getCount() {
return appDomain.getRootCategories().size();
}
@Override
public Fragment getItem(final int position) {
LOG.debug("Creating new Fragment for position {}", position);
final RootCategoryResult rootCategory = appDomain.getRootCategories().get(position);
LOG.debug("{}", rootCategory);
return createRootCategoryFragment(rootCategory);
}
private CategoryFragment createRootCategoryFragment(final RootCategoryResult rootCategory) {
return CategoryFragment.newInstance(rootCategory.getUrlKey(), createViewConfig(rootCategory));
}
private static CategoriesAdapterViewConfig createViewConfig(final RootCategoryResult rootCategory) {
//J-
return new CategoriesAdapterViewConfig()
.sourceActivity(SHOP)
.showTeasers(true)
.resourceTop(R.drawable.shop_top)
.resourceMiddle(R.drawable.shop_middle)
.resourceBottom(R.drawable.shop_bottom)
.showSearchBar(Optional.fromNullable(rootCategory.getIsHome()).or(false));
//J+
}
@Override
public CharSequence getPageTitle(final int position) {
return appDomain.getRootCategories().get(position).getLabel();
}