Examples with RecyclerView androidx.recyclerview.widget.RecyclerView used on opensource projects

Example 46 with RecyclerView

use of androidx.recyclerview.widget.RecyclerView in project Signal-Android by WhisperSystems.

the class StickyHeaderDecoration method onDrawOver.

/**
 * {@inheritDoc}
 */
@Override
public void onDrawOver(@NonNull Canvas c, @NonNull RecyclerView parent, @NonNull RecyclerView.State state) {
    final int count = parent.getChildCount();
    int start = 0;
    for (int layoutPos = 0; layoutPos < count; layoutPos++) {
        final View child = parent.getChildAt(translatedChildPosition(parent, layoutPos));
        final int adapterPos = parent.getChildAdapterPosition(child);
        final long key = adapter.getHeaderId(adapterPos);
        if (key == StickyHeaderAdapter.NO_HEADER_ID) {
            start = layoutPos + 1;
        }
        if (adapterPos != RecyclerView.NO_POSITION && ((layoutPos == start && sticky) || hasHeader(parent, adapter, adapterPos))) {
            View header = getHeader(parent, adapter, adapterPos).itemView;
            c.save();
            final int left = parent.getLeft();
            final int top = getHeaderTop(parent, child, header, adapterPos, layoutPos);
            c.translate(left, top);
            header.draw(c);
            c.restore();
        }
    }
}

Example 47 with RecyclerView

use of androidx.recyclerview.widget.RecyclerView in project Signal-Android by WhisperSystems.

the class StickyHeaderDecoration method getHeaderTop.

protected int getHeaderTop(RecyclerView parent, View child, View header, int adapterPos, int layoutPos) {
    int headerHeight = getHeaderHeightForLayout(header);
    int top = getChildY(child) - headerHeight;
    if (sticky && layoutPos == 0) {
        final int count = parent.getChildCount();
        final long currentId = adapter.getHeaderId(adapterPos);
        // find next view with header and compute the offscreen push if needed
        for (int i = 1; i < count; i++) {
            int adapterPosHere = parent.getChildAdapterPosition(parent.getChildAt(translatedChildPosition(parent, i)));
            if (adapterPosHere != RecyclerView.NO_POSITION) {
                long nextId = adapter.getHeaderId(adapterPosHere);
                if (nextId != currentId) {
                    final View next = parent.getChildAt(translatedChildPosition(parent, i));
                    final int offset = getChildY(next) - (headerHeight + getHeader(parent, adapter, adapterPosHere).itemView.getHeight());
                    if (offset < 0) {
                        return offset;
                    } else {
                        break;
                    }
                }
            }
        }
        if (sticky)
            top = Math.max(0, top);
    }
    return top;
}

Example 48 with RecyclerView

use of androidx.recyclerview.widget.RecyclerView in project Signal-Android by WhisperSystems.

the class ContactSelectionListFragment method initializeCursor.

private void initializeCursor() {
    glideRequests = GlideApp.with(this);
    cursorRecyclerViewAdapter = new ContactSelectionListAdapter(requireContext(), glideRequests, null, new ListClickListener(), isMulti, currentSelection);
    RecyclerViewConcatenateAdapterStickyHeader concatenateAdapter = new RecyclerViewConcatenateAdapterStickyHeader();
    if (listCallback != null) {
        headerAdapter = new FixedViewsAdapter(createNewGroupItem(listCallback));
        headerAdapter.hide();
        concatenateAdapter.addAdapter(headerAdapter);
    }
    concatenateAdapter.addAdapter(cursorRecyclerViewAdapter);
    if (listCallback != null) {
        footerAdapter = new FixedViewsAdapter(createInviteActionView(listCallback));
        footerAdapter.hide();
        concatenateAdapter.addAdapter(footerAdapter);
    }
    recyclerView.addItemDecoration(new LetterHeaderDecoration(requireContext(), this::hideLetterHeaders));
    recyclerView.setAdapter(concatenateAdapter);
    recyclerView.addOnScrollListener(new RecyclerView.OnScrollListener() {

        @Override
        public void onScrollStateChanged(@NonNull RecyclerView recyclerView, int newState) {
            if (newState == RecyclerView.SCROLL_STATE_DRAGGING) {
                if (scrollCallback != null) {
                    scrollCallback.onBeginScroll();
                }
            }
        }
    });
    if (onContactSelectedListener != null) {
        onContactSelectedListener.onSelectionChanged();
    }
}

Example 49 with RecyclerView

use of androidx.recyclerview.widget.RecyclerView in project Signal-Android by WhisperSystems.

the class ContactSelectionListFragment method onCreateView.

@Override
public View onCreateView(@NonNull LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
    View view = inflater.inflate(R.layout.contact_selection_list_fragment, container, false);
    emptyText = view.findViewById(android.R.id.empty);
    recyclerView = view.findViewById(R.id.recycler_view);
    swipeRefresh = view.findViewById(R.id.swipe_refresh);
    fastScroller = view.findViewById(R.id.fast_scroller);
    showContactsLayout = view.findViewById(R.id.show_contacts_container);
    showContactsButton = view.findViewById(R.id.show_contacts_button);
    showContactsDescription = view.findViewById(R.id.show_contacts_description);
    showContactsProgress = view.findViewById(R.id.progress);
    chipGroup = view.findViewById(R.id.chipGroup);
    chipGroupScrollContainer = view.findViewById(R.id.chipGroupScrollContainer);
    constraintLayout = view.findViewById(R.id.container);
    shadowView = view.findViewById(R.id.toolbar_shadow);
    toolbarShadowAnimationHelper = new ToolbarShadowAnimationHelper(shadowView);
    recyclerView.addOnScrollListener(toolbarShadowAnimationHelper);
    recyclerView.setLayoutManager(new LinearLayoutManager(getActivity()));
    recyclerView.setItemAnimator(new DefaultItemAnimator() {

        @Override
        public boolean canReuseUpdatedViewHolder(@NonNull RecyclerView.ViewHolder viewHolder) {
            return true;
        }
    });
    Intent intent = requireActivity().getIntent();
    Bundle arguments = safeArguments();
    int recyclerViewPadBottom = arguments.getInt(RV_PADDING_BOTTOM, intent.getIntExtra(RV_PADDING_BOTTOM, -1));
    boolean recyclerViewClipping = arguments.getBoolean(RV_CLIP, intent.getBooleanExtra(RV_CLIP, true));
    if (recyclerViewPadBottom != -1) {
        ViewUtil.setPaddingBottom(recyclerView, recyclerViewPadBottom);
    }
    recyclerView.setClipToPadding(recyclerViewClipping);
    boolean isRefreshable = arguments.getBoolean(REFRESHABLE, intent.getBooleanExtra(REFRESHABLE, true));
    swipeRefresh.setNestedScrollingEnabled(isRefreshable);
    swipeRefresh.setEnabled(isRefreshable);
    hideCount = arguments.getBoolean(HIDE_COUNT, intent.getBooleanExtra(HIDE_COUNT, false));
    selectionLimit = arguments.getParcelable(SELECTION_LIMITS);
    if (selectionLimit == null) {
        selectionLimit = intent.getParcelableExtra(SELECTION_LIMITS);
    }
    isMulti = selectionLimit != null;
    canSelectSelf = arguments.getBoolean(CAN_SELECT_SELF, intent.getBooleanExtra(CAN_SELECT_SELF, !isMulti));
    if (!isMulti) {
        selectionLimit = SelectionLimits.NO_LIMITS;
    }
    currentSelection = getCurrentSelection();
    return view;
}

Example 50 with RecyclerView

use of androidx.recyclerview.widget.RecyclerView in project Signal-Android by WhisperSystems.

the class ChatWallpaperSelectionFragment method onViewCreated.

@Override
public void onViewCreated(@NonNull View view, @Nullable Bundle savedInstanceState) {
    Toolbar toolbar = view.findViewById(R.id.toolbar);
    View chooseFromPhotos = view.findViewById(R.id.chat_wallpaper_choose_from_photos);
    RecyclerView recyclerView = view.findViewById(R.id.chat_wallpaper_recycler);
    chooseFromPhotos.setOnClickListener(unused -> {
        askForPermissionIfNeededAndLaunchPhotoSelection();
    });
    toolbar.setTitle(R.string.preferences__chat_color_and_wallpaper);
    toolbar.setNavigationOnClickListener(nav -> Navigation.findNavController(nav).popBackStack());
    @SuppressWarnings("CodeBlock2Expr") ChatWallpaperSelectionAdapter adapter = new ChatWallpaperSelectionAdapter(chatWallpaper -> {
        startActivityForResult(ChatWallpaperPreviewActivity.create(requireActivity(), chatWallpaper, viewModel.getRecipientId(), viewModel.getDimInDarkTheme().getValue()), CHOOSE_WALLPAPER);
    });
    recyclerView.setAdapter(adapter);
    viewModel = ViewModelProviders.of(requireActivity()).get(ChatWallpaperViewModel.class);
    viewModel.getWallpapers().observe(getViewLifecycleOwner(), adapter::submitList);
}