Java Code Examples for androidx.recyclerview.widget.RecyclerView.ViewHolder#getAdapterPosition()

The following examples show how to use androidx.recyclerview.widget.RecyclerView.ViewHolder#getAdapterPosition() . You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar.
Example 1
Source File: ItemTouchHelperExtension.java    From CrazyDaily with Apache License 2.0 5 votes vote down vote up 
/**
 * Checks if we should swap w/ another view holder.
 */
private void moveIfNecessary(ViewHolder viewHolder) {
    if (mRecyclerView.isLayoutRequested()) {
        return;
    }
    if (mActionState != ACTION_STATE_DRAG) {
        return;
    }

    final float threshold = mCallback.getMoveThreshold(viewHolder);
    final int x = (int) (mSelectedStartX + mDx);
    final int y = (int) (mSelectedStartY + mDy);
    if (Math.abs(y - viewHolder.itemView.getTop()) < viewHolder.itemView.getHeight() * threshold
            && Math.abs(x - viewHolder.itemView.getLeft())
            < viewHolder.itemView.getWidth() * threshold) {
        return;
    }
    List<ViewHolder> swapTargets = findSwapTargets(viewHolder);
    if (swapTargets.size() == 0) {
        return;
    }
    // may swap.
    ViewHolder target = mCallback.chooseDropTarget(viewHolder, swapTargets, x, y);
    if (target == null) {
        mSwapTargets.clear();
        mDistances.clear();
        return;
    }
    final int toPosition = target.getAdapterPosition();
    final int fromPosition = viewHolder.getAdapterPosition();
    if (mCallback.onMove(mRecyclerView, viewHolder, target)) {
        // keep target visible
        mCallback.onMoved(mRecyclerView, viewHolder, fromPosition,
                target, toPosition, x, y);
    }
}
Example 2
Source File: CardListDemoFragment.java    From material-components-android with Apache License 2.0 5 votes vote down vote up 
@Override
public boolean onMove(
    @NonNull RecyclerView recyclerView,
    @NonNull ViewHolder viewHolder,
    @NonNull ViewHolder target) {
  int fromPosition = viewHolder.getAdapterPosition();
  int toPosition = target.getAdapterPosition();

  swapCards(fromPosition, toPosition, cardAdapter);
  return true;
}
Example 3
Source File: ItemTouchHelper.java    From Carbon with Apache License 2.0 5 votes vote down vote up 
/**
 * Checks if we should swap w/ another view holder.
 */
void moveIfNecessary(ViewHolder viewHolder) {
    if (mRecyclerView.isLayoutRequested()) {
        return;
    }
    if (mActionState != ACTION_STATE_DRAG) {
        return;
    }
    final float threshold = mCallback.getMoveThreshold(viewHolder);
    final int x = (int) (mSelectedStartX + mDx);
    final int y = (int) (mSelectedStartY + mDy);
    if (Math.abs(y - viewHolder.itemView.getTop()) < viewHolder.itemView.getHeight() * threshold
            && Math.abs(x - viewHolder.itemView.getLeft())
            < viewHolder.itemView.getWidth() * threshold) {
        return;
    }
    List<ViewHolder> swapTargets = findSwapTargets(viewHolder);
    if (swapTargets.size() == 0) {
        return;
    }
    // may swap.
    ViewHolder target = mCallback.chooseDropTarget(viewHolder, swapTargets, x, y);
    if (target == null) {
        mSwapTargets.clear();
        mDistances.clear();
        return;
    }
    final int toPosition = target.getAdapterPosition();
    final int fromPosition = viewHolder.getAdapterPosition();
    if (mCallback.onMove(mRecyclerView, viewHolder, target)) {
        // keep target visible
        mCallback.onMoved(mRecyclerView, viewHolder, fromPosition,
                target, toPosition, x, y);
    }
}
Example 4
Source File: ItemTouchHelper.java    From Telegram-FOSS with GNU General Public License v2.0 5 votes vote down vote up 
/**
 * Checks if we should swap w/ another view holder.
 */
@SuppressWarnings("WeakerAccess") /* synthetic access */
void moveIfNecessary(ViewHolder viewHolder) {
    if (mRecyclerView.isLayoutRequested()) {
        return;
    }
    if (mActionState != ACTION_STATE_DRAG) {
        return;
    }

    final float threshold = mCallback.getMoveThreshold(viewHolder);
    final int x = (int) (mSelectedStartX + mDx);
    final int y = (int) (mSelectedStartY + mDy);
    if (Math.abs(y - viewHolder.itemView.getTop()) < viewHolder.itemView.getHeight() * threshold
            && Math.abs(x - viewHolder.itemView.getLeft())
            < viewHolder.itemView.getWidth() * threshold) {
        return;
    }
    List<ViewHolder> swapTargets = findSwapTargets(viewHolder);
    if (swapTargets.size() == 0) {
        return;
    }
    // may swap.
    ViewHolder target = mCallback.chooseDropTarget(viewHolder, swapTargets, x, y);
    if (target == null) {
        mSwapTargets.clear();
        mDistances.clear();
        return;
    }
    final int toPosition = target.getAdapterPosition();
    final int fromPosition = viewHolder.getAdapterPosition();
    if (mCallback.onMove(mRecyclerView, viewHolder, target)) {
        // keep target visible
        mCallback.onMoved(mRecyclerView, viewHolder, fromPosition,
                target, toPosition, x, y);
    }
}
Example 5
Source File: ItemTouchHelper.java    From Telegram with GNU General Public License v2.0 5 votes vote down vote up 
/**
 * Checks if we should swap w/ another view holder.
 */
@SuppressWarnings("WeakerAccess") /* synthetic access */
void moveIfNecessary(ViewHolder viewHolder) {
    if (mRecyclerView.isLayoutRequested()) {
        return;
    }
    if (mActionState != ACTION_STATE_DRAG) {
        return;
    }

    final float threshold = mCallback.getMoveThreshold(viewHolder);
    final int x = (int) (mSelectedStartX + mDx);
    final int y = (int) (mSelectedStartY + mDy);
    if (Math.abs(y - viewHolder.itemView.getTop()) < viewHolder.itemView.getHeight() * threshold
            && Math.abs(x - viewHolder.itemView.getLeft())
            < viewHolder.itemView.getWidth() * threshold) {
        return;
    }
    List<ViewHolder> swapTargets = findSwapTargets(viewHolder);
    if (swapTargets.size() == 0) {
        return;
    }
    // may swap.
    ViewHolder target = mCallback.chooseDropTarget(viewHolder, swapTargets, x, y);
    if (target == null) {
        mSwapTargets.clear();
        mDistances.clear();
        return;
    }
    final int toPosition = target.getAdapterPosition();
    final int fromPosition = viewHolder.getAdapterPosition();
    if (mCallback.onMove(mRecyclerView, viewHolder, target)) {
        // keep target visible
        mCallback.onMoved(mRecyclerView, viewHolder, fromPosition,
                target, toPosition, x, y);
    }
}