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

Example 51 with StaggeredGridLayoutManager

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

the class BGARefreshScrollingUtil method isRecyclerViewToTop.

public static boolean isRecyclerViewToTop(RecyclerView recyclerView) {
    if (recyclerView != null) {
        RecyclerView.LayoutManager manager = recyclerView.getLayoutManager();
        if (manager == null) {
            return true;
        }
        if (manager.getItemCount() == 0) {
            return true;
        }
        if (manager instanceof LinearLayoutManager) {
            LinearLayoutManager layoutManager = (LinearLayoutManager) manager;
            int firstChildTop = 0;
            if (recyclerView.getChildCount() > 0) {
                // 处理item高度超过一屏幕时的情况
                View firstVisibleChild = recyclerView.getChildAt(0);
                if (firstVisibleChild != null && firstVisibleChild.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);
                    }
                }
                // 如果RecyclerView的子控件数量不为0，获取第一个子控件的top
                // 解决item的topMargin不为0时不能触发下拉刷新
                View firstChild = recyclerView.getChildAt(0);
                RecyclerView.LayoutParams layoutParams = (RecyclerView.LayoutParams) firstChild.getLayoutParams();
                firstChildTop = firstChild.getTop() - layoutParams.topMargin - getRecyclerViewItemTopInset(layoutParams) - recyclerView.getPaddingTop();
            }
            if (layoutManager.findFirstCompletelyVisibleItemPosition() < 1 && firstChildTop == 0) {
                return true;
            }
        } else if (manager instanceof StaggeredGridLayoutManager) {
            StaggeredGridLayoutManager layoutManager = (StaggeredGridLayoutManager) manager;
            int[] out = layoutManager.findFirstCompletelyVisibleItemPositions(null);
            if (out[0] < 1) {
                return true;
            }
        }
    }
    return false;
}

Example 52 with StaggeredGridLayoutManager

use of android.support.v7.widget.StaggeredGridLayoutManager in project baseAdapter by hongyangAndroid.

the class RecyclerViewActivity method onOptionsItemSelected.

@Override
public boolean onOptionsItemSelected(MenuItem item) {
    // Handle action bar item clicks here. The action bar will
    // automatically handle clicks on the Home/Up button, so long
    // as you specify a parent activity in AndroidManifest.xml.
    int id = item.getItemId();
    //noinspection SimplifiableIfStatement
    switch(id) {
        case R.id.action_linear:
            mRecyclerView.setLayoutManager(new LinearLayoutManager(this));
            break;
        case R.id.action_grid:
            mRecyclerView.setLayoutManager(new GridLayoutManager(this, 2));
            break;
        case R.id.action_staggered:
            mRecyclerView.setLayoutManager(new StaggeredGridLayoutManager(2, StaggeredGridLayoutManager.VERTICAL));
            break;
    }
    mRecyclerView.setAdapter(mLoadMoreWrapper);
    return super.onOptionsItemSelected(item);
}

Example 53 with StaggeredGridLayoutManager

use of android.support.v7.widget.StaggeredGridLayoutManager in project SuperRecyclerView by Malinskiy.

the class SuperRecyclerView method caseStaggeredGrid.

private int caseStaggeredGrid(RecyclerView.LayoutManager layoutManager) {
    StaggeredGridLayoutManager staggeredGridLayoutManager = (StaggeredGridLayoutManager) layoutManager;
    if (lastScrollPositions == null)
        lastScrollPositions = new int[staggeredGridLayoutManager.getSpanCount()];
    staggeredGridLayoutManager.findLastVisibleItemPositions(lastScrollPositions);
    return findMax(lastScrollPositions);
}

Example 54 with StaggeredGridLayoutManager

use of android.support.v7.widget.StaggeredGridLayoutManager in project remusic by aa112901.

the class SwipeRefreshLayout method isChildScrollToBottom.

/**
     * 是否滑动到底部
     *
     * @return
     */
public boolean isChildScrollToBottom() {
    if (isChildScrollToTop()) {
        return false;
    }
    if (mTarget instanceof RecyclerView) {
        RecyclerView recyclerView = (RecyclerView) mTarget;
        LayoutManager layoutManager = recyclerView.getLayoutManager();
        int count = recyclerView.getAdapter().getItemCount();
        if (layoutManager instanceof LinearLayoutManager && count > 0) {
            LinearLayoutManager linearLayoutManager = (LinearLayoutManager) layoutManager;
            if (linearLayoutManager.findLastCompletelyVisibleItemPosition() == count - 1) {
                return true;
            }
        } else if (layoutManager instanceof StaggeredGridLayoutManager) {
            StaggeredGridLayoutManager staggeredGridLayoutManager = (StaggeredGridLayoutManager) layoutManager;
            int[] lastItems = new int[2];
            staggeredGridLayoutManager.findLastCompletelyVisibleItemPositions(lastItems);
            int lastItem = Math.max(lastItems[0], lastItems[1]);
            if (lastItem == count - 1) {
                return true;
            }
        }
        return false;
    } else if (mTarget instanceof AbsListView) {
        final AbsListView absListView = (AbsListView) mTarget;
        int count = absListView.getAdapter().getCount();
        int fristPos = absListView.getFirstVisiblePosition();
        if (fristPos == 0 && absListView.getChildAt(0).getTop() >= absListView.getPaddingTop()) {
            return false;
        }
        int lastPos = absListView.getLastVisiblePosition();
        if (lastPos > 0 && count > 0 && lastPos == count - 1) {
            return true;
        }
        return false;
    } else if (mTarget instanceof ScrollView) {
        ScrollView scrollView = (ScrollView) mTarget;
        View view = (View) scrollView.getChildAt(scrollView.getChildCount() - 1);
        if (view != null) {
            int diff = (view.getBottom() - (scrollView.getHeight() + scrollView.getScrollY()));
            if (diff == 0) {
                return true;
            }
        }
    }
    return false;
}

Example 55 with StaggeredGridLayoutManager

use of android.support.v7.widget.StaggeredGridLayoutManager in project BaseRecyclerViewAdapterHelper by CymChad.

the class SectionUseActivity method onCreate.

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_section_uer);
    setBackBtn();
    setTitle("Section Use");
    mRecyclerView = (RecyclerView) findViewById(R.id.rv_list);
    mRecyclerView.setLayoutManager(new StaggeredGridLayoutManager(2, StaggeredGridLayoutManager.VERTICAL));
    mData = DataServer.getSampleData();
    SectionAdapter sectionAdapter = new SectionAdapter(R.layout.item_section_content, R.layout.def_section_head, mData);
    mRecyclerView.addOnItemTouchListener(new OnItemClickListener() {

        @Override
        public void onSimpleItemClick(BaseQuickAdapter adapter, View view, int position) {
            MySection mySection = mData.get(position);
            if (mySection.isHeader)
                Toast.makeText(SectionUseActivity.this, mySection.header, Toast.LENGTH_LONG).show();
            else
                Toast.makeText(SectionUseActivity.this, mySection.t.getName(), Toast.LENGTH_LONG).show();
        }

        @Override
        public void onItemChildClick(BaseQuickAdapter adapter, View view, int position) {
            Toast.makeText(SectionUseActivity.this, "onItemChildClick" + position, Toast.LENGTH_LONG).show();
        }
    });
    mRecyclerView.setAdapter(sectionAdapter);
}