Examples with PagedList androidx.paging.PagedList used on opensource projects

Example 1 with PagedList

use of androidx.paging.PagedList in project AdapterDelegates by sockeqwe.

the class PaginationActivity method onCreate.

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_pagination);
    RecyclerView recyclerView = findViewById(R.id.recyclerView);
    recyclerView.setLayoutManager(new LinearLayoutManager(this));
    AdapterDelegatesManager<List<DisplayableItem>> delegatesManager = new AdapterDelegatesManager<List<DisplayableItem>>().addDelegate(new AdvertisementAdapterDelegate(this)).addDelegate(new CatAdapterDelegate(this)).addDelegate(new DogAdapterDelegate(this)).addDelegate(new GeckoAdapterDelegate(this)).addDelegate(new SnakeListItemAdapterDelegate(this)).setFallbackDelegate(new LoadingAdapterDelegate(this));
    final PagedListDelegationAdapter<DisplayableItem> adapter = new PagedListDelegationAdapter<DisplayableItem>(delegatesManager, callback);
    recyclerView.setAdapter(adapter);
    LiveData<PagedList<DisplayableItem>> pagedListLiveData = new LivePagedListBuilder<>(new SampleDataSource.Factory(), 20).setBoundaryCallback(new PagedList.BoundaryCallback<DisplayableItem>() {

        @Override
        public void onZeroItemsLoaded() {
            Log.d("PaginationSource", "onZeroItemsLoaded");
            super.onZeroItemsLoaded();
        }

        @Override
        public void onItemAtFrontLoaded(@NonNull DisplayableItem itemAtFront) {
            Log.d("PaginationSource", "onItemAtFrontLoaded " + itemAtFront);
            super.onItemAtFrontLoaded(itemAtFront);
        }

        @Override
        public void onItemAtEndLoaded(@NonNull DisplayableItem itemAtEnd) {
            Log.d("PaginationSource", "onItemAtEndLoaded " + itemAtEnd);
            super.onItemAtEndLoaded(itemAtEnd);
        }
    }).build();
    pagedListLiveData.observe(this, new Observer<PagedList<DisplayableItem>>() {

        @Override
        public void onChanged(PagedList<DisplayableItem> displayableItems) {
            adapter.submitList(displayableItems);
        }
    });
}

Example 2 with PagedList

use of androidx.paging.PagedList in project Hentoid by avluis.

the class LibraryContentFragment method populateAllResults.

private void populateAllResults(@NonNull final PagedList<Content> iLibrary) {
    if (null == itemAdapter)
        return;
    List<ContentItem> contentItems;
    if (iLibrary.isEmpty()) {
        contentItems = Collections.emptyList();
    } else {
        @ContentItem.ViewType int viewType;
        if (// Grid won't be used in edit mode
        Preferences.Constant.LIBRARY_DISPLAY_LIST == Preferences.getLibraryDisplay() || activity.get().isEditMode())
            viewType = activity.get().isEditMode() ? ContentItem.ViewType.LIBRARY_EDIT : ContentItem.ViewType.LIBRARY;
        else
            viewType = ContentItem.ViewType.LIBRARY_GRID;
        contentItems = Stream.of(iLibrary.subList(0, iLibrary.size())).withoutNulls().map(c -> new ContentItem(c, touchHelper, viewType, this::onDeleteSwipedBook)).distinct().toList();
    }
    FastAdapterDiffUtil.INSTANCE.set(itemAdapter, contentItems, CONTENT_ITEM_DIFF_CALLBACK);
    new Handler(Looper.getMainLooper()).postDelayed(this::differEndCallback, 150);
}

Example 3 with PagedList

use of androidx.paging.PagedList in project AndroidRoad by yeungeek.

the class PagingFragment method onViewCreated.

@Override
public void onViewCreated(@NonNull View view, @Nullable Bundle savedInstanceState) {
    super.onViewCreated(view, savedInstanceState);
    recyclerView = view.findViewById(R.id.recycle_view);
    gankViewModel = ViewModelProviders.of(this).get(GankViewModel.class);
    gankAdapter = new GankAdapter(new DiffUtil.ItemCallback<GankData>() {

        @Override
        public boolean areItemsTheSame(@NonNull GankData oldItem, @NonNull GankData newItem) {
            return oldItem.get_id() == newItem.get_id();
        }

        @Override
        public boolean areContentsTheSame(@NonNull GankData oldItem, @NonNull GankData newItem) {
            return oldItem.getUrl().equals(newItem.getUrl());
        }
    });
    recyclerView.setAdapter(gankAdapter);
    recyclerView.setLayoutManager(new LinearLayoutManager(getContext()));
    gankViewModel.getData().observe(this, new Observer<PagedList<GankData>>() {

        @Override
        public void onChanged(PagedList<GankData> gankData) {
            gankAdapter.submitList(gankData);
        }
    });
}

Example 4 with PagedList

use of androidx.paging.PagedList in project Hentoid by avluis.

the class LibraryContentFragment method onLibraryChanged.

/**
 * LiveData callback when the library changes
 * - Either because a new search has been performed
 * - Or because a book has been downloaded, deleted, updated
 *
 * @param result Current library according to active filters
 */
private void onLibraryChanged(PagedList<Content> result) {
    Timber.i(">> Library changed ! Size=%s", result.size());
    if (!enabled)
        return;
    activity.get().updateTitle(result.size(), totalContentCount);
    // Update background text
    @StringRes int backgroundText = -1;
    if (result.isEmpty()) {
        if (isSearchQueryActive())
            backgroundText = R.string.search_entry_not_found;
        else if (0 == totalContentCount)
            backgroundText = R.string.downloads_empty_library;
    }
    if (backgroundText != -1) {
        emptyText.setVisibility(View.VISIBLE);
        emptyText.setText(backgroundText);
    } else
        emptyText.setVisibility(View.GONE);
    // Update visibility of advanced search bar
    activity.get().updateSearchBarOnResults(!result.isEmpty());
    String query = getQuery();
    // => Suggests searching through all sources except those where the selected book ID is already in the collection
    if (newSearch && StringHelper.isNumeric(query)) {
        ArrayList<Integer> siteCodes = Stream.of(result).withoutNulls().filter(content -> query.equals(content.getUniqueSiteId())).map(Content::getSite).map(Site::getCode).collect(// ArrayList is required by SearchContentIdDialogFragment.invoke
        toCollection(ArrayList::new));
        if (!result.isEmpty()) {
            Snackbar snackbar = Snackbar.make(recyclerView, R.string.launchcode_present, BaseTransientBottomBar.LENGTH_LONG);
            snackbar.setAction(R.string.menu_search, v -> SearchContentIdDialogFragment.invoke(requireContext(), getParentFragmentManager(), query, siteCodes));
            snackbar.show();
        } else
            SearchContentIdDialogFragment.invoke(requireContext(), getParentFragmentManager(), query, siteCodes);
    }
    // If the update is the result of a new search, get back on top of the list
    if (newSearch)
        topItemPosition = 0;
    // Update displayed books
    if (Preferences.getEndlessScroll() && !activity.get().isEditMode() && pagedItemAdapter != null) {
        pagedItemAdapter.submitList(result, this::differEndCallback);
    } else if (activity.get().isEditMode()) {
        populateAllResults(result);
    } else {
        // Paged mode
        if (newSearch)
            pager.setCurrentPage(1);
        pager.setPageCount((int) Math.ceil(result.size() * 1.0 / Preferences.getContentPageQuantity()));
        loadBookshelf(result);
    }
    // Go back to groups view if there are no books to display (use case : remove the last books from the currently viewed group)
    if (result.isEmpty() && Grouping.CUSTOM.equals(Preferences.getGroupingDisplay()))
        activity.get().goBackToGroups();
    newSearch = false;
    library = result;
}