Examples with StaggeredGridLayoutManager android.support.v7.widget.StaggeredGridLayoutManager used on opensource projects

Example 46 with StaggeredGridLayoutManager

use of android.support.v7.widget.StaggeredGridLayoutManager in project TwinklingRefreshLayout by lcodecorex.

the class ScrollingUtil method isRecyclerViewToBottom.

public static boolean isRecyclerViewToBottom(RecyclerView recyclerView) {
    if (recyclerView != null) {
        RecyclerView.LayoutManager manager = recyclerView.getLayoutManager();
        if (manager == null || manager.getItemCount() == 0) {
            return false;
        }
        if (manager instanceof LinearLayoutManager) {
            // 处理item高度超过一屏幕时的情况
            View lastVisibleChild = recyclerView.getChildAt(recyclerView.getChildCount() - 1);
            if (lastVisibleChild != null && lastVisibleChild.getMeasuredHeight() >= recyclerView.getMeasuredHeight()) {
                if (android.os.Build.VERSION.SDK_INT < 14) {
                    return !(ViewCompat.canScrollVertically(recyclerView, 1) || recyclerView.getScrollY() < 0);
                } else {
                    return !ViewCompat.canScrollVertically(recyclerView, 1);
                }
            }
            LinearLayoutManager layoutManager = (LinearLayoutManager) manager;
            if (layoutManager.findLastCompletelyVisibleItemPosition() == layoutManager.getItemCount() - 1) {
                return true;
            }
        } else if (manager instanceof StaggeredGridLayoutManager) {
            StaggeredGridLayoutManager layoutManager = (StaggeredGridLayoutManager) manager;
            int[] out = layoutManager.findLastCompletelyVisibleItemPositions(null);
            int lastPosition = layoutManager.getItemCount() - 1;
            for (int position : out) {
                if (position == lastPosition) {
                    return true;
                }
            }
        }
    }
    return false;
}

Example 47 with StaggeredGridLayoutManager

use of android.support.v7.widget.StaggeredGridLayoutManager in project FlexibleAdapter by davideas.

the class OverallAdapter method onBindViewHolder.

/**
	 * METHOD A - NEW! Via Model objects. In this case you don't need to implement this method!
	 * METHOD B - You override and implement this method as you prefer (don't call super).
	 *
	 * Using Method B, some methods need to be called by the user, see bottom of this method!
	 */
@Override
public void onBindViewHolder(RecyclerView.ViewHolder holder, int position, List payload) {
    int viewType = getItemViewType(position);
    Context context = holder.itemView.getContext();
    if (viewType == R.layout.recycler_scrollable_usecase_item) {
        ScrollableUseCaseItem item = (ScrollableUseCaseItem) getItem(position);
        ScrollableUseCaseItem.UCViewHolder vHolder = (ScrollableUseCaseItem.UCViewHolder) holder;
        assert item != null;
        DrawableUtils.setBackgroundCompat(holder.itemView, DrawableUtils.getRippleDrawable(DrawableUtils.getColorDrawable(context.getResources().getColor(R.color.material_color_blue_grey_50)), DrawableUtils.getColorControlHighlight(context)));
        vHolder.mTitle.setText(Utils.fromHtmlCompat(item.getTitle()));
        vHolder.mSubtitle.setText(Utils.fromHtmlCompat(item.getSubtitle()));
        //Support for StaggeredGridLayoutManager
        if (holder.itemView.getLayoutParams() instanceof StaggeredGridLayoutManager.LayoutParams) {
            ((StaggeredGridLayoutManager.LayoutParams) holder.itemView.getLayoutParams()).setFullSpan(true);
            Log.d("LayoutItem", "LayoutItem configured fullSpan for StaggeredGridLayout");
        }
    } else if (viewType == R.layout.recycler_scrollable_layout_item) {
        ScrollableLayoutItem item = (ScrollableLayoutItem) getItem(position);
        ScrollableLayoutItem.LayoutViewHolder vHolder = (ScrollableLayoutItem.LayoutViewHolder) holder;
        assert item != null;
        //For marquee
        vHolder.mTitle.setSelected(true);
        vHolder.mTitle.setText(item.getTitle());
        vHolder.mSubtitle.setText(item.getSubtitle());
        //Support for StaggeredGridLayoutManager
        if (holder.itemView.getLayoutParams() instanceof StaggeredGridLayoutManager.LayoutParams) {
            ((StaggeredGridLayoutManager.LayoutParams) holder.itemView.getLayoutParams()).setFullSpan(true);
            Log.d("LayoutItem", "LayoutItem configured fullSpan for StaggeredGridLayout");
        }
    } else if (viewType == R.layout.recycler_overall_item) {
        OverallItem item = (OverallItem) getItem(position);
        OverallItem.LabelViewHolder vHolder = (OverallItem.LabelViewHolder) holder;
        assert item != null;
        if (item.getTitle() != null) {
            vHolder.mTitle.setText(item.getTitle());
            vHolder.mTitle.setEnabled(isEnabled(position));
        }
        if (item.getDescription() != null) {
            vHolder.mSubtitle.setText(Utils.fromHtmlCompat(item.getDescription()));
            vHolder.mSubtitle.setEnabled(isEnabled(position));
        }
        if (item.getIcon() != null) {
            vHolder.mIcon.setImageDrawable(item.getIcon());
        }
    }
    // IMPORTANT!!!
    // With method B, animateView() needs to be called by the user!
    // With method A, the call is handled by the Adapter
    animateView(holder, position);
// Same concept for EndlessScrolling and View activation:
// - onLoadMore(position);
// - holder.itemView.setActivated(isSelected(position));
}

Example 48 with StaggeredGridLayoutManager

use of android.support.v7.widget.StaggeredGridLayoutManager in project FlexibleAdapter by davideas.

the class FragmentOverall method onPrepareOptionsMenu.

@Override
public void onPrepareOptionsMenu(Menu menu) {
    super.onPrepareOptionsMenu(menu);
    MenuItem gridMenuItem = menu.findItem(R.id.action_list_type);
    if (mRecyclerView.getLayoutManager() instanceof StaggeredGridLayoutManager) {
        gridMenuItem.setIcon(R.drawable.ic_view_agenda_white_24dp);
        gridMenuItem.setTitle(R.string.linear_layout);
    } else if (mRecyclerView.getLayoutManager() instanceof GridLayoutManager) {
        gridMenuItem.setIcon(R.drawable.ic_dashboard_white_24dp);
        gridMenuItem.setTitle(R.string.staggered_layout);
    } else {
        gridMenuItem.setIcon(R.drawable.ic_view_grid_white_24dp);
        gridMenuItem.setTitle(R.string.grid_layout);
    }
}

Example 49 with StaggeredGridLayoutManager

use of android.support.v7.widget.StaggeredGridLayoutManager in project UltimateRecyclerView by cymcsg.

the class UltimateRecyclerView method scroll_load_more_detection.

private void scroll_load_more_detection(RecyclerView recyclerView) {
    RecyclerView.LayoutManager layoutManager = recyclerView.getLayoutManager();
    if (layoutManagerType == null) {
        if (layoutManager instanceof GridLayoutManager) {
            layoutManagerType = LAYOUT_MANAGER_TYPE.GRID;
        } else if (layoutManager instanceof StaggeredGridLayoutManager) {
            layoutManagerType = LAYOUT_MANAGER_TYPE.STAGGERED_GRID;
        } else if (layoutManager instanceof LinearLayoutManager) {
            layoutManagerType = LAYOUT_MANAGER_TYPE.LINEAR;
        } else {
            throw new RuntimeException("Unsupported LayoutManager used. Valid ones are LinearLayoutManager, GridLayoutManager and StaggeredGridLayoutManager");
        }
    }
    mTotalItemCount = layoutManager.getItemCount();
    mVisibleItemCount = layoutManager.getChildCount();
    switch(layoutManagerType) {
        case LINEAR:
            mFirstVisibleItem = mRecyclerViewHelper.findFirstVisibleItemPosition();
            lastVisibleItemPosition = mRecyclerViewHelper.findLastVisibleItemPosition();
            break;
        case GRID:
            if (layoutManager instanceof GridLayoutManager) {
                GridLayoutManager ly = (GridLayoutManager) layoutManager;
                lastVisibleItemPosition = ly.findLastVisibleItemPosition();
                mFirstVisibleItem = ly.findFirstVisibleItemPosition();
            }
            break;
        case STAGGERED_GRID:
            if (layoutManager instanceof StaggeredGridLayoutManager) {
                StaggeredGridLayoutManager sy = (StaggeredGridLayoutManager) layoutManager;
                if (mlastPositionsStaggeredGridLayout == null)
                    mlastPositionsStaggeredGridLayout = new int[sy.getSpanCount()];
                sy.findLastVisibleItemPositions(mlastPositionsStaggeredGridLayout);
                lastVisibleItemPosition = findMax(mlastPositionsStaggeredGridLayout);
                sy.findFirstVisibleItemPositions(mlastPositionsStaggeredGridLayout);
                mFirstVisibleItem = findMin(mlastPositionsStaggeredGridLayout);
            }
            break;
    }
    if (automaticLoadMoreEnabled) {
        if (mTotalItemCount > previousTotal) {
            automaticLoadMoreEnabled = false;
            previousTotal = mTotalItemCount;
        }
    }
    boolean bottomEdgeHit = (mTotalItemCount - mVisibleItemCount) <= mFirstVisibleItem;
    if (bottomEdgeHit) {
        if (mIsLoadMoreWidgetEnabled) {
            /**auto activate load more**/
            if (!automaticLoadMoreEnabled) {
                onLoadMoreListener.loadMore(mRecyclerView.getAdapter().getItemCount(), lastVisibleItemPosition);
                automaticLoadMoreEnabled = true;
            }
        }
        mAdapter.internalExecuteLoadingView();
        previousTotal = mTotalItemCount;
    }
}

Example 50 with StaggeredGridLayoutManager

use of android.support.v7.widget.StaggeredGridLayoutManager in project BGARefreshLayout-Android by bingoogolapple.

the class BGARefreshScrollingUtil method isRecyclerViewToBottom.

public static boolean isRecyclerViewToBottom(RecyclerView recyclerView) {
    if (recyclerView != null) {
        RecyclerView.LayoutManager manager = recyclerView.getLayoutManager();
        if (manager == null || manager.getItemCount() == 0) {
            return false;
        }
        if (manager instanceof LinearLayoutManager) {
            // 处理item高度超过一屏幕时的情况
            View lastVisibleChild = recyclerView.getChildAt(recyclerView.getChildCount() - 1);
            if (lastVisibleChild != null && lastVisibleChild.getMeasuredHeight() >= recyclerView.getMeasuredHeight()) {
                if (android.os.Build.VERSION.SDK_INT < 14) {
                    return !(ViewCompat.canScrollVertically(recyclerView, 1) || recyclerView.getScrollY() < 0);
                } else {
                    return !ViewCompat.canScrollVertically(recyclerView, 1);
                }
            }
            LinearLayoutManager layoutManager = (LinearLayoutManager) manager;
            if (layoutManager.findLastCompletelyVisibleItemPosition() == layoutManager.getItemCount() - 1) {
                BGAStickyNavLayout stickyNavLayout = getStickyNavLayout(recyclerView);
                if (stickyNavLayout != null) {
                    // 处理BGAStickyNavLayout中findLastCompletelyVisibleItemPosition失效问题
                    View lastCompletelyVisibleChild = layoutManager.getChildAt(layoutManager.findLastCompletelyVisibleItemPosition());
                    if (lastCompletelyVisibleChild == null) {
                        return true;
                    } else {
                        // 0表示x，1表示y
                        int[] location = new int[2];
                        lastCompletelyVisibleChild.getLocationOnScreen(location);
                        int lastChildBottomOnScreen = location[1] + lastCompletelyVisibleChild.getMeasuredHeight();
                        stickyNavLayout.getLocationOnScreen(location);
                        int stickyNavLayoutBottomOnScreen = location[1] + stickyNavLayout.getMeasuredHeight();
                        return lastChildBottomOnScreen <= stickyNavLayoutBottomOnScreen;
                    }
                } else {
                    return true;
                }
            }
        } else if (manager instanceof StaggeredGridLayoutManager) {
            StaggeredGridLayoutManager layoutManager = (StaggeredGridLayoutManager) manager;
            int[] out = layoutManager.findLastCompletelyVisibleItemPositions(null);
            int lastPosition = layoutManager.getItemCount() - 1;
            for (int position : out) {
                if (position == lastPosition) {
                    return true;
                }
            }
        }
    }
    return false;
}