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

Example 31 with StaggeredGridLayoutManager

use of android.support.v7.widget.StaggeredGridLayoutManager in project EasyRecyclerView by Jude95.

the class DividerDecoration method onDraw.

public void onDraw(Canvas c, RecyclerView parent, RecyclerView.State state) {
    if (parent.getAdapter() == null) {
        return;
    }
    int orientation = 0;
    int headerCount = 0, footerCount = 0, dataCount;
    if (parent.getAdapter() instanceof RecyclerArrayAdapter) {
        headerCount = ((RecyclerArrayAdapter) parent.getAdapter()).getHeaderCount();
        footerCount = ((RecyclerArrayAdapter) parent.getAdapter()).getFooterCount();
        dataCount = ((RecyclerArrayAdapter) parent.getAdapter()).getCount();
    } else {
        dataCount = parent.getAdapter().getItemCount();
    }
    int dataStartPosition = headerCount;
    int dataEndPosition = headerCount + dataCount;
    RecyclerView.LayoutManager layoutManager = parent.getLayoutManager();
    if (layoutManager instanceof StaggeredGridLayoutManager) {
        orientation = ((StaggeredGridLayoutManager) layoutManager).getOrientation();
    } else if (layoutManager instanceof GridLayoutManager) {
        orientation = ((GridLayoutManager) layoutManager).getOrientation();
    } else if (layoutManager instanceof LinearLayoutManager) {
        orientation = ((LinearLayoutManager) layoutManager).getOrientation();
    }
    int start, end;
    if (orientation == OrientationHelper.VERTICAL) {
        start = parent.getPaddingLeft() + mPaddingLeft;
        end = parent.getWidth() - parent.getPaddingRight() - mPaddingRight;
    } else {
        start = parent.getPaddingTop() + mPaddingLeft;
        end = parent.getHeight() - parent.getPaddingBottom() - mPaddingRight;
    }
    int childCount = parent.getChildCount();
    for (int i = 0; i < childCount; i++) {
        View child = parent.getChildAt(i);
        int position = parent.getChildAdapterPosition(child);
        if (// 数据项除了最后一项
        position >= dataStartPosition && position < dataEndPosition - 1 || // 数据项最后一项
        (position == dataEndPosition - 1 && mDrawLastItem) || // header&footer且可绘制
        (!(position >= dataStartPosition && position < dataEndPosition) && mDrawHeaderFooter)) {
            if (orientation == OrientationHelper.VERTICAL) {
                RecyclerView.LayoutParams params = (RecyclerView.LayoutParams) child.getLayoutParams();
                int top = child.getBottom() + params.bottomMargin;
                int bottom = top + mHeight;
                mColorDrawable.setBounds(start, top, end, bottom);
                mColorDrawable.draw(c);
            } else {
                RecyclerView.LayoutParams params = (RecyclerView.LayoutParams) child.getLayoutParams();
                int left = child.getRight() + params.rightMargin;
                int right = left + mHeight;
                mColorDrawable.setBounds(left, start, right, end);
                mColorDrawable.draw(c);
            }
        }
    }
}

Example 32 with StaggeredGridLayoutManager

use of android.support.v7.widget.StaggeredGridLayoutManager in project weex-example by KalicyZhou.

the class WXRecyclerViewOnScrollListener method onScrolled.

@Override
public void onScrolled(RecyclerView recyclerView, int dx, int dy) {
    super.onScrolled(recyclerView, dx, dy);
    RecyclerView.LayoutManager layoutManager = recyclerView.getLayoutManager();
    IOnLoadMoreListener l;
    if ((l = listener.get()) != null) {
        l.onBeforeScroll(dx, dy);
    }
    //  int lastVisibleItemPosition = -1;
    if (layoutManagerType == null) {
        if (layoutManager instanceof LinearLayoutManager) {
            layoutManagerType = LAYOUT_MANAGER_TYPE.LINEAR;
        } else if (layoutManager instanceof GridLayoutManager) {
            layoutManagerType = LAYOUT_MANAGER_TYPE.GRID;
        } else if (layoutManager instanceof StaggeredGridLayoutManager) {
            layoutManagerType = LAYOUT_MANAGER_TYPE.STAGGERED_GRID;
        } else {
            throw new RuntimeException("Unsupported LayoutManager used. Valid ones are LinearLayoutManager, GridLayoutManager and StaggeredGridLayoutManager");
        }
    }
    switch(layoutManagerType) {
        case LINEAR:
            lastVisibleItemPosition = ((LinearLayoutManager) layoutManager).findLastVisibleItemPosition();
            listener.get().notifyAppearStateChange(((LinearLayoutManager) layoutManager).findFirstVisibleItemPosition(), lastVisibleItemPosition, dx, dy);
            break;
        case GRID:
            lastVisibleItemPosition = ((GridLayoutManager) layoutManager).findLastVisibleItemPosition();
            break;
        case STAGGERED_GRID:
            StaggeredGridLayoutManager staggeredGridLayoutManager = (StaggeredGridLayoutManager) layoutManager;
            if (lastPositions == null) {
                lastPositions = new int[staggeredGridLayoutManager.getSpanCount()];
            }
            staggeredGridLayoutManager.findLastVisibleItemPositions(lastPositions);
            lastVisibleItemPosition = findMax(lastPositions);
            break;
    }
}

Example 33 with StaggeredGridLayoutManager

use of android.support.v7.widget.StaggeredGridLayoutManager in project easy by MehdiBenmesa.

the class Utils method scrollTo.

public static void scrollTo(Object scroll, float yOffset) {
    if (scroll instanceof RecyclerView) {
        //RecyclerView.scrollTo : UnsupportedOperationException
        //Moved to the RecyclerView.LayoutManager.scrollToPositionWithOffset
        //Have to be instanceOf RecyclerView.LayoutManager to work (so work with RecyclerView.GridLayoutManager)
        final RecyclerView.LayoutManager layoutManager = ((RecyclerView) scroll).getLayoutManager();
        if (layoutManager instanceof LinearLayoutManager) {
            LinearLayoutManager linearLayoutManager = (LinearLayoutManager) layoutManager;
            linearLayoutManager.scrollToPositionWithOffset(0, (int) -yOffset);
        } else if (layoutManager instanceof StaggeredGridLayoutManager) {
            StaggeredGridLayoutManager staggeredGridLayoutManager = (StaggeredGridLayoutManager) layoutManager;
            staggeredGridLayoutManager.scrollToPositionWithOffset(0, (int) -yOffset);
        }
    } else if (scroll instanceof NestedScrollView) {
        ((NestedScrollView) scroll).scrollTo(0, (int) yOffset);
    }
}

Example 34 with StaggeredGridLayoutManager

use of android.support.v7.widget.StaggeredGridLayoutManager in project XRecyclerView by jianghejie.

the class StaggeredGridActivity method onCreate.

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_recyclerview);
    final Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
    setSupportActionBar(toolbar);
    getSupportActionBar().setDisplayHomeAsUpEnabled(true);
    mRecyclerView = (XRecyclerView) this.findViewById(R.id.recyclerview);
    StaggeredGridLayoutManager layoutManager = new StaggeredGridLayoutManager(3, StaggeredGridLayoutManager.VERTICAL);
    layoutManager.setOrientation(LinearLayoutManager.VERTICAL);
    mRecyclerView.setLayoutManager(layoutManager);
    mRecyclerView.setRefreshProgressStyle(ProgressStyle.BallSpinFadeLoader);
    mRecyclerView.setLoadingMoreProgressStyle(ProgressStyle.BallRotate);
    mRecyclerView.setArrowImageView(R.drawable.iconfont_downgrey);
    View header = LayoutInflater.from(this).inflate(R.layout.recyclerview_header, (ViewGroup) findViewById(android.R.id.content), false);
    mRecyclerView.addHeaderView(header);
    mRecyclerView.setLoadingListener(new XRecyclerView.LoadingListener() {

        @Override
        public void onRefresh() {
            refreshTime++;
            times = 0;
            new Handler().postDelayed(new Runnable() {

                public void run() {
                    listData.clear();
                    for (int i = 0; i < 25; i++) {
                        listData.add("item" + i + "after " + refreshTime + " times of refresh");
                    }
                    mAdapter.notifyDataSetChanged();
                    mRecyclerView.refreshComplete();
                }
            }, // refresh data here
            1000);
        }

        @Override
        public void onLoadMore() {
            if (times < 2) {
                new Handler().postDelayed(new Runnable() {

                    public void run() {
                        mRecyclerView.loadMoreComplete();
                        for (int i = 0; i < 25; i++) {
                            listData.add("item" + (i + listData.size()));
                        }
                        mRecyclerView.loadMoreComplete();
                        mAdapter.notifyDataSetChanged();
                    }
                }, 1000);
            } else {
                new Handler().postDelayed(new Runnable() {

                    public void run() {
                        for (int i = 0; i < 9; i++) {
                            listData.add("item" + (1 + listData.size()));
                        }
                        mRecyclerView.setNoMore(true);
                        mAdapter.notifyDataSetChanged();
                    }
                }, 1000);
            }
            times++;
        }
    });
    listData = new ArrayList<String>();
    for (int i = 0; i < 25; i++) {
        listData.add("item" + i);
    }
    mAdapter = new MyAdapter(listData);
    mRecyclerView.setAdapter(mAdapter);
}

Example 35 with StaggeredGridLayoutManager

use of android.support.v7.widget.StaggeredGridLayoutManager in project twicalico by moko256.

the class BaseTweetListFragment method initializeRecyclerViewLayoutManager.

@Override
protected RecyclerView.LayoutManager initializeRecyclerViewLayoutManager() {
    WindowManager wm = (WindowManager) getActivity().getSystemService(Context.WINDOW_SERVICE);
    Display display = wm.getDefaultDisplay();
    Point size = new Point();
    display.getSize(size);
    int count = (int) Math.ceil((double) // Picture area: (16 : 9) + Other content: (16 : 3)
    (size.x * 12) / (size.y * 16));
    if (count == 1) {
        LinearLayoutManager layoutManager = new LinearLayoutManager(getContext());
        layoutManager.setRecycleChildrenOnDetach(true);
        return layoutManager;
    } else {
        return new StaggeredGridLayoutManager(count, StaggeredGridLayoutManager.VERTICAL);
    }
}