com.chad.library.adapter.base.BaseSectionQuickAdapter Java Examples

The following examples show how to use com.chad.library.adapter.base.BaseSectionQuickAdapter. 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: GridSectionAverageGapItemDecoration.java    From BaseRecyclerViewAdapterHelper with MIT License 5 votes vote down vote up 
private void setUpWithAdapter(BaseSectionQuickAdapter<SectionEntity, BaseViewHolder> adapter) {
    if (mAdapter != null) {
        mAdapter.unregisterAdapterDataObserver(mDataObserver);
    }
    mAdapter = adapter;
    mAdapter.registerAdapterDataObserver(mDataObserver);
    markSections();
}
Example #2
Source File: GridSectionAverageGapItemDecoration.java    From BaseRecyclerViewAdapterHelper with MIT License 5 votes vote down vote up 
private void markSections() {
        if (mAdapter != null) {
            BaseSectionQuickAdapter<SectionEntity, BaseViewHolder> adapter = mAdapter;
            mSectionList.clear();
            SectionEntity sectionEntity = null;
            Section section = new Section();
            for (int i = 0, size = adapter.getItemCount(); i < size; i++) {
                sectionEntity = adapter.getItem(i);
                if (sectionEntity != null && sectionEntity.isHeader()) {
                    //找到新Section起点
                    if (section != null && i != 0) {
                        //已经有待添加的section
                        section.endPos = i - 1;
                        mSectionList.add(section);
                    }
                    section = new Section();
                    section.startPos = i + 1;
                } else {
                    section.endPos = i;
                }
            }
            //处理末尾情况
            if (!mSectionList.contains(section)) {
                mSectionList.add(section);
            }

//            Log.w("GridAverageGapItem", "section list=" + mSectionList);
        }
    }
Example #3
Source File: GridSectionAverageGapItemDecoration.java    From BaseRecyclerViewAdapterHelper with MIT License 4 votes vote down vote up 
@Override
    public void getItemOffsets(Rect outRect, View view, RecyclerView parent, RecyclerView.State state) {
        if (parent.getLayoutManager() instanceof GridLayoutManager && parent.getAdapter() instanceof BaseSectionQuickAdapter) {
            GridLayoutManager layoutManager = (GridLayoutManager) parent.getLayoutManager();
            BaseSectionQuickAdapter<SectionEntity, BaseViewHolder> adapter = (BaseSectionQuickAdapter) parent.getAdapter();
            if (mAdapter != adapter) {
                setUpWithAdapter(adapter);
            }
            int spanCount = layoutManager.getSpanCount();
            int position = parent.getChildAdapterPosition(view) - mAdapter.getHeaderLayoutCount();
            SectionEntity entity = adapter.getItem(position);

            if (entity == null || entity.isHeader()) {
                //不处理header
                outRect.set(0, 0, 0, 0);
//                Log.w("GridAverageGapItem", "pos=" + position + "," + outRect.toShortString());
                return;
            }

            Section section = findSectionLastItemPos(position);

            if (gapHSizePx < 0 || gapVSizePx < 0) {
                transformGapDefinition(parent, spanCount);
            }
            outRect.top = gapVSizePx;
            outRect.bottom = 0;

            //下面的visualPos为单个Section内的视觉Pos
            int visualPos = position + 1 - section.startPos;
            if (visualPos % spanCount == 1) {
                //第一列
                outRect.left = sectionEdgeHPaddingPx;
                outRect.right = eachItemHPaddingPx - sectionEdgeHPaddingPx;
            } else if (visualPos % spanCount == 0) {
                //最后一列
                outRect.left = eachItemHPaddingPx - sectionEdgeHPaddingPx;
                outRect.right = sectionEdgeHPaddingPx;
            } else {
                outRect.left = gapHSizePx - (eachItemHPaddingPx - sectionEdgeHPaddingPx);
                outRect.right = eachItemHPaddingPx - outRect.left;
            }

            if (visualPos - spanCount <= 0) {
                //第一行
                outRect.top = sectionEdgeVPaddingPx;
            }

            if (isLastRow(visualPos, spanCount, section.getCount())) {
                //最后一行
                outRect.bottom = sectionEdgeVPaddingPx;
//                Log.w("GridAverageGapItem", "last row pos=" + position);
            }
//            Log.w("GridAverageGapItem", "pos=" + position + ",vPos=" + visualPos + "," + outRect.toShortString());
        } else {
            super.getItemOffsets(outRect, view, parent, state);
        }
    }