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

Example 86 with RecyclerView

use of androidx.recyclerview.widget.RecyclerView in project BaseRecyclerViewAdapterHelper by CymChad.

the class GridItemDecoration method onDrawOver.

/**
 * @param c
 * @param parent
 * @param state
 */
@Override
public void onDrawOver(Canvas c, RecyclerView parent, RecyclerView.State state) {
    if (dividerDrawable == null) {
        return;
    }
    int childCount = parent.getChildCount();
    int rightV = parent.getWidth();
    for (int i = 0; i < childCount; i++) {
        View child = parent.getChildAt(i);
        RecyclerView.LayoutParams params = (RecyclerView.LayoutParams) child.getLayoutParams();
        int leftV = parent.getPaddingLeft() + child.getPaddingLeft();
        int bottomV = child.getTop() - params.topMargin;
        int topV = bottomV - dividerDrawable.getIntrinsicHeight();
        int topH = child.getTop() + params.topMargin;
        int bottomH = child.getBottom() + params.bottomMargin;
        int rightH = child.getLeft() - params.leftMargin;
        int leftH = rightH - dividerDrawable.getIntrinsicWidth();
        dividerDrawable.setBounds(leftH, topH, rightH, bottomH);
        dividerDrawable.draw(c);
        dividerDrawable.setBounds(leftV, topV, rightV, bottomV);
        dividerDrawable.draw(c);
    }
}

Example 87 with RecyclerView

use of androidx.recyclerview.widget.RecyclerView in project BaseRecyclerViewAdapterHelper by CymChad.

the class DragAndSwipeCallback method onChildDrawOver.

@Override
public void onChildDrawOver(@NonNull Canvas c, @NonNull RecyclerView recyclerView, @NonNull RecyclerView.ViewHolder viewHolder, float dX, float dY, int actionState, boolean isCurrentlyActive) {
    super.onChildDrawOver(c, recyclerView, viewHolder, dX, dY, actionState, isCurrentlyActive);
    if (actionState == ItemTouchHelper.ACTION_STATE_SWIPE && !isViewCreateByAdapter(viewHolder)) {
        View itemView = viewHolder.itemView;
        c.save();
        if (dX > 0) {
            c.clipRect(itemView.getLeft(), itemView.getTop(), itemView.getLeft() + dX, itemView.getBottom());
            c.translate(itemView.getLeft(), itemView.getTop());
        } else {
            c.clipRect(itemView.getRight() + dX, itemView.getTop(), itemView.getRight(), itemView.getBottom());
            c.translate(itemView.getRight() + dX, itemView.getTop());
        }
        if (mDraggableModule != null) {
            mDraggableModule.onItemSwiping(c, viewHolder, dX, dY, isCurrentlyActive);
        }
        c.restore();
    }
}

Example 88 with RecyclerView

use of androidx.recyclerview.widget.RecyclerView in project UltimateRecyclerView by cymcsg.

the class DragManager method onDrag.

@Override
public boolean onDrag(View v, DragEvent event) {
    if (v != recyclerViewRef.get() || !(event.getLocalState() instanceof DragInfo)) {
        return false;
    }
    final RecyclerView recyclerView = (RecyclerView) v;
    final DragInfo dragInfo = (DragInfo) event.getLocalState();
    final long itemId = dragInfo.itemId();
    switch(event.getAction()) {
        case DragEvent.ACTION_DRAG_STARTED:
            draggingId = itemId;
            adapter.notifyItemChanged(recyclerView.findViewHolderForItemId(itemId).getAdapterPosition());
            break;
        case DragEvent.ACTION_DRAG_LOCATION:
            float x = event.getX();
            float y = event.getY();
            int fromPosition = adapter.getPositionForId(itemId);
            int toPosition = -1;
            View child = recyclerView.findChildViewUnder(event.getX(), event.getY());
            if (child != null) {
                toPosition = recyclerView.getChildViewHolder(child).getAdapterPosition();
            }
            if (toPosition >= 0 && fromPosition != toPosition) {
                RecyclerView.ItemAnimator animator = recyclerView.getItemAnimator();
                boolean scheduleNextMove = nextMoveTouchPoint.equals(MIN_VALUE, MIN_VALUE);
                nextMoveTouchPoint.set(x, y);
                if (scheduleNextMove)
                    animator.isRunning(new RecyclerView.ItemAnimator.ItemAnimatorFinishedListener() {

                        @Override
                        public void onAnimationsFinished() {
                            if (nextMoveTouchPoint.equals(MIN_VALUE, MIN_VALUE)) {
                                return;
                            }
                            final int fromPosition = adapter.getPositionForId(itemId);
                            View child = recyclerView.findChildViewUnder(nextMoveTouchPoint.x, nextMoveTouchPoint.y);
                            if (child != null) {
                                final int toPosition = recyclerView.getChildViewHolder(child).getAdapterPosition();
                                if (adapter.move(fromPosition, toPosition)) {
                                    if (fromPosition == 0 || toPosition == 0) {
                                        // fix for weird scrolling when animating first item
                                        recyclerView.scrollToPosition(0);
                                    }
                                    recyclerView.post(new Runnable() {

                                        @Override
                                        public void run() {
                                            adapter.notifyItemMoved(fromPosition, toPosition);
                                        }
                                    });
                                }
                            }
                            // reset so we know to schedule listener again next time
                            clearNextMove();
                        }
                    });
            }
            lastDragInfo = dragInfo;
            lastDragInfo.setDragPoint(x, y);
            adapter.handleDragScroll(recyclerView, dragInfo);
            break;
        case DragEvent.ACTION_DRAG_ENDED:
            draggingId = RecyclerView.NO_ID;
            lastDragInfo = null;
            // queue up the show animation until after all move animations are finished
            recyclerView.getItemAnimator().isRunning(new RecyclerView.ItemAnimator.ItemAnimatorFinishedListener() {

                @Override
                public void onAnimationsFinished() {
                    int position = adapter.getPositionForId(itemId);
                    RecyclerView.ViewHolder vh = recyclerView.findViewHolderForItemId(itemId);
                    if (vh != null && vh.getAdapterPosition() != position) {
                        // if positions don't match, there's still an outstanding move animation
                        // so we try to reschedule the notifyItemChanged until after that
                        recyclerView.post(new Runnable() {

                            @Override
                            public void run() {
                                recyclerView.getItemAnimator().isRunning(new RecyclerView.ItemAnimator.ItemAnimatorFinishedListener() {

                                    @Override
                                    public void onAnimationsFinished() {
                                        adapter.notifyItemChanged(adapter.getPositionForId(itemId));
                                    }
                                });
                            }
                        });
                    } else {
                        adapter.notifyItemChanged(adapter.getPositionForId(itemId));
                    }
                }
            });
            break;
        case DragEvent.ACTION_DROP:
            adapter.onDrop();
            break;
        case DragEvent.ACTION_DRAG_ENTERED:
            // probably not used?
            break;
        case DragEvent.ACTION_DRAG_EXITED:
            // TODO edge scrolling
            break;
    }
    return true;
}

Example 89 with RecyclerView

use of androidx.recyclerview.widget.RecyclerView in project UltimateRecyclerView by cymcsg.

the class SwipeListViewTouchListener method makeScrollListener.

/**
 * Return ScrollListener for ListView
 *
 * @return OnScrollListener
 */
public RecyclerView.OnScrollListener makeScrollListener() {
    return new RecyclerView.OnScrollListener() {

        private boolean isFirstItem = false;

        private boolean isLastItem = false;

        @Override
        public void onScrollStateChanged(RecyclerView recyclerView, int newState) {
            setEnabled(newState != recyclerView.SCROLL_STATE_DRAGGING);
            if (swipeClosesAllItemsWhenListMoves && newState == recyclerView.SCROLL_STATE_DRAGGING) {
                closeOpenedItems();
            }
            if (newState == recyclerView.SCROLL_STATE_DRAGGING) {
                listViewMoving = true;
                setEnabled(false);
            }
            if (newState != recyclerView.SCROLL_STATE_SETTLING && newState != recyclerView.SCROLL_STATE_DRAGGING) {
                listViewMoving = false;
                downPosition = ListView.INVALID_POSITION;
                swipeListView.resetScrolling();
                new Handler().postDelayed(new Runnable() {

                    public void run() {
                        setEnabled(true);
                    }
                }, 500);
            }
        }

        @Override
        public void onScrolled(RecyclerView view, int dx, int dy) {
        // if (isFirstItem) {
        // boolean onSecondItemList = firstVisibleItem == 1;
        // if (onSecondItemList) {
        // isFirstItem = false;
        // }
        // } else {
        // boolean onFirstItemList = firstVisibleItem == 0;
        // if (onFirstItemList)
        // isFirstItem = true;
        // swipeListView.onFirstListItem();
        // }
        // }
        // if (isLastItem) {
        // boolean onBeforeLastItemList = firstVisibleItem + visibleItemCount == totalItemCount - 1;
        // if (onBeforeLastItemList) {
        // isLastItem = false;
        // }
        // } else {
        // boolean onLastItemList = firstVisibleItem + visibleItemCount >= totalItemCount;
        // if (onLastItemList) {
        // isLastItem = true;
        // swipeListView.onLastListItem();
        // }
        // }
        }
    };
}

Example 90 with RecyclerView

use of androidx.recyclerview.widget.RecyclerView in project UltimateRecyclerView by cymcsg.

the class DividerItemDecoration method drawHorizontal.

public void drawHorizontal(Canvas c, RecyclerView parent) {
    final int top = parent.getPaddingTop();
    final int bottom = parent.getHeight() - parent.getPaddingBottom();
    final int childCount = parent.getChildCount();
    for (int i = 0; i < childCount; i++) {
        final View child = parent.getChildAt(i);
        final RecyclerView.LayoutParams params = (RecyclerView.LayoutParams) child.getLayoutParams();
        final int left = child.getRight() + params.rightMargin;
        final int right = left + mDivider.getIntrinsicHeight();
        mDivider.setBounds(left, top, right, bottom);
        mDivider.draw(c);
    }
}