Java Code Examples for com.alibaba.android.vlayout.LayoutHelper#setRange()

The following examples show how to use com.alibaba.android.vlayout.LayoutHelper#setRange() . 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: TangramEngine.java    From Tangram-Android with MIT License 5 votes vote down vote up 
/**
 * A high performance method to insert cells. Do not allowed to insert to an empty Tangram. TODO handle nested card
 * @param insertPosition the position to be inserted
 * @param list new cell data list
 * @since 2.1.0
 */
public void insertWith(int insertPosition, List<BaseCell> list) {
    int newItemSize = list != null ? list.size() : 0;
    if (newItemSize > 0 && mGroupBasicAdapter != null) {
        if (insertPosition >= mGroupBasicAdapter.getItemCount()) {
            insertPosition = mGroupBasicAdapter.getItemCount() - 1;
        }
        BaseCell insertCell = mGroupBasicAdapter.getItemByPosition(insertPosition);
        int cardIdx = mGroupBasicAdapter.findCardIdxFor(insertPosition);
        Card card = mGroupBasicAdapter.getCardRange(cardIdx).second;
        card.addCells(card, card.getCells().indexOf(insertCell), list);
        List<LayoutHelper> layoutHelpers = getLayoutManager().getLayoutHelpers();
        if (layoutHelpers != null && cardIdx >= 0 && cardIdx < layoutHelpers.size()) {
            for (int i = 0, size = layoutHelpers.size(); i < size; i++) {
                LayoutHelper layoutHelper = layoutHelpers.get(i);
                int start = layoutHelper.getRange().getLower();
                int end = layoutHelper.getRange().getUpper();
                if (end < insertPosition) {
                    //do nothing
                } else if (start <= insertPosition && insertPosition <= end) {
                    layoutHelper.setItemCount(layoutHelper.getItemCount() + newItemSize);
                    layoutHelper.setRange(start, end + newItemSize);
                } else if (insertPosition < start) {
                    layoutHelper.setRange(start + newItemSize, end + newItemSize);
                }
            }
            mGroupBasicAdapter.insertComponents(insertPosition, list);
        }
    }
}
Example 2
Source File: TangramEngine.java    From Tangram-Android with MIT License 5 votes vote down vote up 
/**
 * Remove target cell. TODO handle nested card, cell in staggered, cell in onePlusN
 * @param data
 * @since 2.1.0
 */
protected void removeBy(BaseCell data) {
    VirtualLayoutManager layoutManager = getLayoutManager();
    if (data != null && mGroupBasicAdapter != null && layoutManager != null) {
        int removePosition = mGroupBasicAdapter.getPositionByItem(data);
        if (removePosition >= 0) {
            int cardIdx = mGroupBasicAdapter.findCardIdxFor(removePosition);
            Card card = mGroupBasicAdapter.getCardRange(cardIdx).second;
            card.removeCellSilently(data);
            List<LayoutHelper> layoutHelpers = layoutManager.getLayoutHelpers();
            LayoutHelper emptyLayoutHelper = null;
            if (layoutHelpers != null && cardIdx >= 0 && cardIdx < layoutHelpers.size()) {
                for (int i = 0, size = layoutHelpers.size(); i < size; i++) {
                    LayoutHelper layoutHelper = layoutHelpers.get(i);
                    int start = layoutHelper.getRange().getLower();
                    int end = layoutHelper.getRange().getUpper();
                    if (end < removePosition) {
                        //do nothing
                    } else if (start <= removePosition && removePosition <= end) {
                        int itemCount = layoutHelper.getItemCount() - 1;
                        if (itemCount > 0) {
                            layoutHelper.setItemCount(itemCount);
                            layoutHelper.setRange(start, end - 1);
                        } else {
                            emptyLayoutHelper = layoutHelper;
                        }
                    } else if (removePosition < start) {
                        layoutHelper.setRange(start - 1, end - 1);
                    }
                }
                if (emptyLayoutHelper != null) {
                    final List<LayoutHelper> newLayoutHelpers = new LinkedList<>(layoutHelpers);
                    newLayoutHelpers.remove(emptyLayoutHelper);
                    layoutManager.setLayoutHelpers(newLayoutHelpers);
                }
                mGroupBasicAdapter.removeComponent(data);
            }
        }
    }
}
Example 3
Source File: TangramEngine.java    From Tangram-Android with MIT License 5 votes vote down vote up 
/**
 * Remove all cells in a card.
 * @param group
 * @since 2.1.0
 */
protected void removeBatchBy(Card group) {
    VirtualLayoutManager layoutManager = getLayoutManager();
    if (group != null && mGroupBasicAdapter != null && layoutManager != null) {
        int cardIdx = mGroupBasicAdapter.findCardIdxForCard(group);
        List<LayoutHelper> layoutHelpers = layoutManager.getLayoutHelpers();
        LayoutHelper emptyLayoutHelper = null;
        int removeItemCount = 0;
        if (layoutHelpers != null && cardIdx >= 0 && cardIdx < layoutHelpers.size()) {
            for (int i = 0, size = layoutHelpers.size(); i < size; i++) {
                LayoutHelper layoutHelper = layoutHelpers.get(i);
                int start = layoutHelper.getRange().getLower();
                int end = layoutHelper.getRange().getUpper();
                if (i < cardIdx) {
                    // do nothing
                } else if (i == cardIdx) {
                    removeItemCount = layoutHelper.getItemCount();
                    emptyLayoutHelper = layoutHelper;
                } else {
                    layoutHelper.setRange(start - removeItemCount, end - removeItemCount);
                }
            }
            if (emptyLayoutHelper != null) {
                final List<LayoutHelper> newLayoutHelpers = new LinkedList<>(layoutHelpers);
                newLayoutHelpers.remove(emptyLayoutHelper);
                layoutManager.setLayoutHelpers(newLayoutHelpers);
            }
            mGroupBasicAdapter.removeComponents(group);
        }
    }
}
Example 4
Source File: TangramEngine.java    From Tangram-Android with MIT License 5 votes vote down vote up 
/**
 * Replace parent card's children. Cells' size should be equal with parent's children size.
 * @param parent
 * @param cells
 * @since 2.1.0
 */
public void replace(Card parent, List<BaseCell> cells) {
    VirtualLayoutManager layoutManager = getLayoutManager();
    if (parent != null && cells != null && cells.size() > 0 && mGroupBasicAdapter != null && layoutManager != null) {
        Card card = parent;
        List<BaseCell> oldChildren = new ArrayList<>(parent.getCells());
        if (oldChildren.size() == cells.size()) {
            card.setCells(cells);
            mGroupBasicAdapter.replaceComponent(oldChildren, cells);
        } else {
            List<LayoutHelper> layoutHelpers = layoutManager.getLayoutHelpers();
            int cardIdx = mGroupBasicAdapter.findCardIdxForCard(parent);
            int diff = 0;
            if (layoutHelpers != null && cardIdx >= 0 && cardIdx < layoutHelpers.size()) {
                for (int i = 0, size = layoutHelpers.size(); i < size; i++) {
                    LayoutHelper layoutHelper = layoutHelpers.get(i);
                    int start = layoutHelper.getRange().getLower();
                    int end = layoutHelper.getRange().getUpper();
                    if (i < cardIdx) {
                        // do nothing
                    } else if (i == cardIdx) {
                        diff = cells.size() - layoutHelper.getItemCount();
                        layoutHelper.setItemCount(cells.size());
                        layoutHelper.setRange(start, end + diff);
                    } else {
                        layoutHelper.setRange(start + diff, end + diff);
                    }
                }
                card.setCells(cells);
                mGroupBasicAdapter.replaceComponent(oldChildren, cells);
            }
        }
    }
}
Example 5
Source File: TangramEngine.java    From Tangram-Android with MIT License 5 votes vote down vote up 
/**
 * A high performance method to insert cells. Do not allowed to insert to an empty Tangram. TODO handle nested card
 *
 * @param insertPosition the position to be inserted
 * @param list           new cell data list
 * @since 2.1.0
 */
public void insertWith(int insertPosition, List<BaseCell> list) {
    int newItemSize = list != null ? list.size() : 0;
    if (newItemSize > 0 && mGroupBasicAdapter != null) {
        if (insertPosition >= mGroupBasicAdapter.getItemCount()) {
            insertPosition = mGroupBasicAdapter.getItemCount() - 1;
        }
        BaseCell insertCell = mGroupBasicAdapter.getItemByPosition(insertPosition);
        int cardIdx = mGroupBasicAdapter.findCardIdxFor(insertPosition);
        Card card = mGroupBasicAdapter.getCardRange(cardIdx).second;
        card.addCells(card, card.getCells().indexOf(insertCell), list);
        List<LayoutHelper> layoutHelpers = getLayoutManager().getLayoutHelpers();
        if (layoutHelpers != null && cardIdx >= 0 && cardIdx < layoutHelpers.size()) {
            for (int i = 0, size = layoutHelpers.size(); i < size; i++) {
                LayoutHelper layoutHelper = layoutHelpers.get(i);
                int start = layoutHelper.getRange().getLower();
                int end = layoutHelper.getRange().getUpper();
                if (end < insertPosition) {
                    //do nothing
                } else if (start <= insertPosition && insertPosition <= end) {
                    layoutHelper.setItemCount(layoutHelper.getItemCount() + newItemSize);
                    layoutHelper.setRange(start, end + newItemSize);
                } else if (insertPosition < start) {
                    layoutHelper.setRange(start + newItemSize, end + newItemSize);
                }
            }
            mGroupBasicAdapter.insertComponents(insertPosition, list);
        }
    }
}
Example 6
Source File: TangramEngine.java    From Tangram-Android with MIT License 5 votes vote down vote up 
/**
 * Remove target cell. TODO handle nested card, cell in staggered, cell in onePlusN
 *
 * @param data
 * @since 2.1.0
 */
public void removeBy(BaseCell data) {
    VirtualLayoutManager layoutManager = getLayoutManager();
    if (data != null && mGroupBasicAdapter != null && layoutManager != null) {
        int removePosition = mGroupBasicAdapter.getPositionByItem(data);
        if (removePosition >= 0) {
            int cardIdx = mGroupBasicAdapter.findCardIdxFor(removePosition);
            Card card = mGroupBasicAdapter.getCardRange(cardIdx).second;
            card.removeCellSilently(data);
            List<LayoutHelper> layoutHelpers = layoutManager.getLayoutHelpers();
            LayoutHelper emptyLayoutHelper = null;
            if (layoutHelpers != null && cardIdx >= 0 && cardIdx < layoutHelpers.size()) {
                for (int i = 0, size = layoutHelpers.size(); i < size; i++) {
                    LayoutHelper layoutHelper = layoutHelpers.get(i);
                    int start = layoutHelper.getRange().getLower();
                    int end = layoutHelper.getRange().getUpper();
                    if (end < removePosition) {
                        //do nothing
                    } else if (start <= removePosition && removePosition <= end) {
                        int itemCount = layoutHelper.getItemCount() - 1;
                        if (itemCount > 0) {
                            layoutHelper.setItemCount(itemCount);
                            layoutHelper.setRange(start, end - 1);
                        } else {
                            emptyLayoutHelper = layoutHelper;
                        }
                    } else if (removePosition < start) {
                        layoutHelper.setRange(start - 1, end - 1);
                    }
                }
                if (emptyLayoutHelper != null) {
                    final List<LayoutHelper> newLayoutHelpers = new LinkedList<>(layoutHelpers);
                    newLayoutHelpers.remove(emptyLayoutHelper);
                    layoutManager.setLayoutHelpers(newLayoutHelpers);
                }
                mGroupBasicAdapter.removeComponent(data);
            }
        }
    }
}
Example 7
Source File: TangramEngine.java    From Tangram-Android with MIT License 5 votes vote down vote up 
/**
 * Remove all cells in a card.
 *
 * @param group
 * @since 2.1.0
 */
public void removeBatchBy(Card group) {
    VirtualLayoutManager layoutManager = getLayoutManager();
    if (group != null && mGroupBasicAdapter != null && layoutManager != null) {
        int cardIdx = mGroupBasicAdapter.findCardIdxForCard(group);
        List<LayoutHelper> layoutHelpers = layoutManager.getLayoutHelpers();
        LayoutHelper emptyLayoutHelper = null;
        int removeItemCount = 0;
        if (layoutHelpers != null && cardIdx >= 0 && cardIdx < layoutHelpers.size()) {
            for (int i = 0, size = layoutHelpers.size(); i < size; i++) {
                LayoutHelper layoutHelper = layoutHelpers.get(i);
                int start = layoutHelper.getRange().getLower();
                int end = layoutHelper.getRange().getUpper();
                if (i < cardIdx) {
                    // do nothing
                } else if (i == cardIdx) {
                    removeItemCount = layoutHelper.getItemCount();
                    emptyLayoutHelper = layoutHelper;
                } else {
                    layoutHelper.setRange(start - removeItemCount, end - removeItemCount);
                }
            }
            if (emptyLayoutHelper != null) {
                final List<LayoutHelper> newLayoutHelpers = new LinkedList<>(layoutHelpers);
                newLayoutHelpers.remove(emptyLayoutHelper);
                layoutManager.setLayoutHelpers(newLayoutHelpers);
            }
            mGroupBasicAdapter.removeComponents(group);
        }
    }
}
Example 8
Source File: TangramEngine.java    From Tangram-Android with MIT License 5 votes vote down vote up 
/**
 * Replace parent card's children. Cells' size should be equal with parent's children size.
 *
 * @param parent
 * @param cells
 * @since 2.1.0
 */
public void replace(Card parent, List<BaseCell> cells) {
    VirtualLayoutManager layoutManager = getLayoutManager();
    if (parent != null && cells != null && cells.size() > 0 && mGroupBasicAdapter != null && layoutManager != null) {
        Card card = parent;
        List<BaseCell> oldChildren = new ArrayList<>(parent.getCells());
        if (oldChildren.size() == cells.size()) {
            card.setCells(cells);
            mGroupBasicAdapter.replaceComponent(oldChildren, cells);
        } else {
            List<LayoutHelper> layoutHelpers = layoutManager.getLayoutHelpers();
            int cardIdx = mGroupBasicAdapter.findCardIdxForCard(parent);
            int diff = 0;
            if (layoutHelpers != null && cardIdx >= 0 && cardIdx < layoutHelpers.size()) {
                for (int i = 0, size = layoutHelpers.size(); i < size; i++) {
                    LayoutHelper layoutHelper = layoutHelpers.get(i);
                    int start = layoutHelper.getRange().getLower();
                    int end = layoutHelper.getRange().getUpper();
                    if (i < cardIdx) {
                        // do nothing
                    } else if (i == cardIdx) {
                        diff = cells.size() - layoutHelper.getItemCount();
                        layoutHelper.setItemCount(cells.size());
                        layoutHelper.setRange(start, end + diff);
                    } else {
                        layoutHelper.setRange(start + diff, end + diff);
                    }
                }
                card.setCells(cells);
                mGroupBasicAdapter.replaceComponent(oldChildren, cells);
            }
        }
    }
}