android.support.v7.widget.RecyclerView#getChildCount

Source File: DividerItemDecoration.java From ExpandableLayout with Apache License 2.0

6 votes

@Override
public void onDrawOver(Canvas c, RecyclerView parent, RecyclerView.State state) {
    super.onDrawOver(c, parent, state);
    final int left = parent.getPaddingLeft();
    final int right = parent.getWidth() - parent.getPaddingRight();

    final int childCount = parent.getChildCount();
    for (int i = 0; i < childCount; i++) {
        final View child = parent.getChildAt(i);
        final RecyclerView.LayoutParams params = (RecyclerView.LayoutParams) child
                .getLayoutParams();
        final int top = child.getBottom() + params.bottomMargin;
        final int bottom = top + mDivider.getIntrinsicHeight();
        mDivider.setBounds(left, top, right, bottom);
        mDivider.draw(c);
    }
}

Source File: DividerItemDecoration.java From githot with Apache License 2.0

6 votes

public void drawVertical(Canvas c, RecyclerView parent) {
    final int left = (int) (parent.getPaddingLeft() + (rtl ? 0 : paddingStart));
    final int right =
            (int) (parent.getWidth() - parent.getPaddingRight() + (rtl ? paddingStart : 0));

    final int childCount = parent.getChildCount();
    for (int i = 0; i < childCount; i++) {
        final View child = parent.getChildAt(i);
        final RecyclerView.LayoutParams params = (RecyclerView.LayoutParams) child.getLayoutParams();
        final int top = child.getBottom() + params.bottomMargin +
                Math.round(ViewCompat.getTranslationY(child));
        final int bottom = top + divider.getIntrinsicHeight();
        divider.setBounds(left, top, right, bottom);
        divider.draw(c);
    }
}

Source File: DividerGridItemDecoration.java From NetEasyNews with GNU General Public License v3.0

6 votes

public void drawVertical(Canvas c, RecyclerView parent)
{
    final int childCount = parent.getChildCount();
    for (int i = 0; i < childCount; i++)
    {
        final View child = parent.getChildAt(i);

        final RecyclerView.LayoutParams params = (RecyclerView.LayoutParams) child
                .getLayoutParams();
        final int top = child.getTop() - params.topMargin;
        final int bottom = child.getBottom() + params.bottomMargin;
        final int left = child.getRight() + params.rightMargin;
        final int right = left + mDivider.getIntrinsicWidth();

        mDivider.setBounds(left, top, right, bottom);
        mDivider.draw(c);
    }
}

Source File: DividerItemDecoration.java From MeetMusic with Apache License 2.0

6 votes

public void drawVertical(Canvas c, RecyclerView parent)
{
	final int left = parent.getPaddingLeft() + DIVIDER_PADING_LEFT;
	final int right = parent.getWidth() - parent.getPaddingRight();

	final int childCount = parent.getChildCount();

	for (int i = 0; i < childCount; i++)
	{
		final View child = parent.getChildAt(i);
		RecyclerView v = new RecyclerView(
				parent.getContext());
		final RecyclerView.LayoutParams params = (RecyclerView.LayoutParams) child
				.getLayoutParams();
		final int top = child.getBottom() + params.bottomMargin;
		final int bottom = top + mDivider.getIntrinsicHeight();
		mDivider.setBounds(left, top, right, bottom);
		mDivider.draw(c);
	}
}

Source File: DividerItemDecoration.java From android-recyclerview with Apache License 2.0

6 votes

public void drawHorizontal(Canvas c, RecyclerView parent) {
    final int top = parent.getPaddingTop();
    final int bottom = parent.getHeight() - parent.getPaddingBottom();

    final int childCount = parent.getChildCount();
    for (int i = 0; i < childCount; i++) {
        final View child = parent.getChildAt(i);
        final RecyclerView.LayoutParams params = (RecyclerView.LayoutParams) child
                .getLayoutParams();
        final int left = child.getRight() + params.rightMargin +
                Math.round(ViewCompat.getTranslationX(child));
        final int right = left + mDivider.getIntrinsicHeight();
        mDivider.setBounds(left, top, right, bottom);
        mDivider.draw(c);
    }
}

Source File: DividerItemDecoration.java From rv-adapter-states with MIT License

6 votes

public void drawVertical(Canvas c, RecyclerView parent) {
    final int left = parent.getPaddingLeft();
    final int right = parent.getWidth() - parent.getPaddingRight();

    final int childCount = parent.getChildCount();
    for (int i = 0; i < childCount; i++) {
        final View child = parent.getChildAt(i);
        final RecyclerView.LayoutParams params = (RecyclerView.LayoutParams) child
                .getLayoutParams();
        final int top = child.getBottom() + params.bottomMargin +
                Math.round(ViewCompat.getTranslationY(child));
        final int bottom = top + mDivider.getIntrinsicHeight();
        mDivider.setBounds(left, top, right, bottom);
        mDivider.draw(c);
    }
}

Source File: DividerItemDecoration.java From Android-Tech with Apache License 2.0

6 votes

public void drawVertical(Canvas c, RecyclerView parent)
{
	final int left = parent.getPaddingLeft();
	final int right = parent.getWidth() - parent.getPaddingRight();

	final int childCount = parent.getChildCount();

	for (int i = 0; i < childCount; i++)
	{
		final View child = parent.getChildAt(i);
		RecyclerView v = new RecyclerView(
				parent.getContext());
		final RecyclerView.LayoutParams params = (RecyclerView.LayoutParams) child
				.getLayoutParams();
		final int top = child.getBottom() + params.bottomMargin;
		final int bottom = top + mDivider.getIntrinsicHeight();
		mDivider.setBounds(left, top, right, bottom);
		mDivider.draw(c);
	}
}

Source File: DividerGridItemDecoration.java From PowerfulRecyclerView with Apache License 2.0

6 votes

public void drawHorizontal(Canvas c, RecyclerView parent)
{
    int childCount = parent.getChildCount();
    for (int i = 0; i < childCount; i++)
    {
        final View child = parent.getChildAt(i);
        final RecyclerView.LayoutParams params = (RecyclerView.LayoutParams) child
                .getLayoutParams();
        final int left = child.getLeft() - params.leftMargin;
        final int right = child.getRight() + params.rightMargin
                + mDivider.getIntrinsicWidth();
        final int top = child.getBottom() + params.bottomMargin;
        final int bottom = top + mDivider.getIntrinsicHeight();
        mDivider.setBounds(left, top, right, bottom);
        mDivider.draw(c);
    }
}

Source File: GridDividerDecorator.java From AlbumSelector with Apache License 2.0

6 votes

private void drawBottomDivider(Canvas c, RecyclerView parent) {
    final int childCount = parent.getChildCount();
    for (int i = 0; i < childCount; i++) {

        final View child = parent.getChildAt(i);
        final RecyclerView.LayoutParams params = (RecyclerView.LayoutParams) child
                .getLayoutParams();
        final int left = child.getLeft() - params.leftMargin;
        final int right = child.getRight() - params.rightMargin + mDividerSize;
        final int top = child.getBottom() + params.bottomMargin +
                Math.round(ViewCompat.getTranslationY(child));
        final int bottom = top + mDividerSize;
        mDivider.setBounds(left, top, right, bottom);
        mDivider.draw(c);
    }
}

Source File: RecycleViewDivider.java From httplite with Apache License 2.0

6 votes

private void drawVertical(Canvas canvas, RecyclerView parent) {
    final int top = parent.getPaddingTop();
    final int bottom = parent.getMeasuredHeight() - parent.getPaddingBottom();
    final int childSize = parent.getChildCount();
    for (int i = 0; i < childSize; i++) {
        final View child = parent.getChildAt(i);
        RecyclerView.LayoutParams layoutParams = (RecyclerView.LayoutParams) child.getLayoutParams();
        final int left = child.getRight() + layoutParams.rightMargin;
        final int right = left + mDividerHeight;
        if (mDivider != null) {
            mDivider.setBounds(left, top, right, bottom);
            mDivider.draw(canvas);
        }
        if (mPaint != null) {
            canvas.drawRect(left, top, right, bottom, mPaint);
        }
    }
}

Source File: DividerItemDecoration.java From MyHearts with Apache License 2.0

6 votes

/**
 * 横向列表的横线
 *
 * @param c
 * @param parent
 */
private void drawHorizontal(Canvas c, RecyclerView parent) {
    final int top = parent.getPaddingTop();
    final int bottom = parent.getHeight() - parent.getPaddingBottom();

    final int childCount = parent.getChildCount();
    for (int i = 0; i < childCount; i++) {
        final View child = parent.getChildAt(i);
        final RecyclerView.LayoutParams params = (RecyclerView.LayoutParams) child
                .getLayoutParams();
        final int left = child.getRight() + params.rightMargin;
        final int right = left + mDivider.getIntrinsicHeight();
        mDivider.setBounds(left, top, right, bottom);
        mDivider.draw(c);
    }
}

Source File: RecycleViewDivider.java From Ticket-Analysis with MIT License

6 votes

private void drawVertical(Canvas canvas, RecyclerView parent) {
    final int top = parent.getPaddingTop();
    final int bottom = parent.getMeasuredHeight() - parent.getPaddingBottom();
    final int childSize = parent.getChildCount();
    for (int i = 0; i < childSize; i++) {
        final View child = parent.getChildAt(i);
        RecyclerView.LayoutParams layoutParams = (RecyclerView.LayoutParams) child.getLayoutParams();
        final int left = child.getRight() + layoutParams.rightMargin;
        final int right = left + mDividerHeight;
        if (mDivider != null) {
            mDivider.setBounds(left, top, right, bottom);
            mDivider.draw(canvas);
        }
        if (mPaint != null) {
            canvas.drawRect(left, top, right, bottom, mPaint);
        }
    }
}

Source File: MyDividerItemDecoration.java From styT with Apache License 2.0

6 votes

/**
 * 绘制间隔
 */
private void drawHorizontal(Canvas c, RecyclerView parent) {
    final int top = parent.getPaddingTop();
    final int bottom = parent.getHeight() - parent.getPaddingBottom();
    final int childCount = parent.getChildCount();
    for (int i = 0; i < childCount; i++) {
        final View child = parent.getChildAt(i);
        final RecyclerView.LayoutParams params = (RecyclerView.LayoutParams) child
                .getLayoutParams();
        final int left = child.getRight() + params.rightMargin +
                Math.round(ViewCompat.getTranslationX(child));
        final int right = left + mDivider.getIntrinsicHeight();
        mDivider.setBounds(left, top, right, bottom);
        mDivider.draw(c);
    }
}

Source File: EndlessRecyclerOnScrollListener.java From PhotoDiscovery with Apache License 2.0

5 votes

@Override public void onScrolled(RecyclerView view, int dx, int dy) {

    int firstVisibleItem =
        mLinearLayoutManager.findFirstVisibleItemPositions(new int[mSpanCount])[0];

    int visibleItemCount = view.getChildCount();
    int totalItemCount = mLinearLayoutManager.getItemCount();

    // If the total item count is zero and the previous isn't, assume the
    // list is invalidated and should be reset back to initial state
    if (totalItemCount < previousTotalItemCount) {
      this.currentPage = this.startingPageIndex;
      this.previousTotalItemCount = totalItemCount;
      if (totalItemCount == 0) {
        this.loading = true;
      }
    }
    // If it’s still loading, we check to see if the dataset count has
    // changed, if so we conclude it has finished loading and update the current page
    // number and total item count.
    if (loading && (totalItemCount > previousTotalItemCount)) {
      loading = false;
      previousTotalItemCount = totalItemCount;
    }

    // If it isn’t currently loading, we check to see if we have breached
    // the visibleThreshold and need to reload more data.
    // If we do need to reload some more data, we execute onLoadMore to fetch the data.
    if (!loading && (totalItemCount - visibleItemCount) <= (firstVisibleItem + visibleThreshold)) {
      currentPage++;
      onLoadMore(currentPage, totalItemCount);
      loading = true;
    }
  }

Source File: RecyclerSectionItemDecoration.java From recycler_view_headers with Apache License 2.0

5 votes

@Override
public void onDrawOver(Canvas c, RecyclerView parent, RecyclerView.State state) {
    super.onDrawOver(c,
                     parent,
                     state);

    if (headerView == null) {
        headerView = inflateHeaderView(parent);
        header = (TextView) headerView.findViewById(R.id.list_item_section_text);
        fixLayoutSize(headerView,
                      parent);
    }

    CharSequence previousHeader = "";
    for (int i = 0; i < parent.getChildCount(); i++) {
        View child = parent.getChildAt(i);
        final int position = parent.getChildAdapterPosition(child);

        CharSequence title = sectionCallback.getSectionHeader(position);
        header.setText(title);
        if (!previousHeader.equals(title) || sectionCallback.isSection(position)) {
            drawHeader(c,
                       child,
                       headerView);
            previousHeader = title;
        }
    }
}

Source File: CommonRecyclerAdapter.java From QPM with Apache License 2.0

5 votes

public void drawVertical(Canvas canvas, RecyclerView parent) {
    final int childCount = parent.getChildCount();
    for (int i = 0; i < childCount; i++) {
        final View child = parent.getChildAt(i);
        final RecyclerView.LayoutParams params = (RecyclerView.LayoutParams) child.getLayoutParams();
        final int top = child.getTop() - params.topMargin;
        final int bottom = child.getBottom() + params.bottomMargin;
        final int left = child.getRight() + params.rightMargin;
        final int right = left + dividerHeight;
        canvas.drawRect(left, top, right, bottom, mPaint);
    }
}

Source File: ViewUtils.java From RecyclerViewPager with Apache License 2.0

5 votes

/**
 * Get center child in X Axes
 */
public static View getCenterXChild(RecyclerView recyclerView) {
    int childCount = recyclerView.getChildCount();
    if (childCount > 0) {
        for (int i = 0; i < childCount; i++) {
            View child = recyclerView.getChildAt(i);
            if (isChildInCenterX(recyclerView, child)) {
                return child;
            }
        }
    }
    return null;
}

Source File: DividerItemDecoration.java From Muzesto with GNU General Public License v3.0

5 votes

public void drawVertical(Canvas c, RecyclerView parent) {
    final int left = parent.getPaddingLeft();
    final int right = parent.getWidth() - parent.getPaddingRight();

    final int childCount = parent.getChildCount();
    for (int i = 0; i < childCount; i++) {
        final View child = parent.getChildAt(i);
        final RecyclerView.LayoutParams params = (RecyclerView.LayoutParams) child
                .getLayoutParams();
        final int top = child.getBottom() + params.bottomMargin;
        final int bottom = top + mDivider.getIntrinsicHeight();
        mDivider.setBounds(left, top, right, bottom);
        mDivider.draw(c);
    }
}

Source File: StickyDecoration.java From AndroidFrame with Apache License 2.0

5 votes

@Override
public void onDrawOver(Canvas c, RecyclerView parent, RecyclerView.State state) {
    super.onDrawOver(c, parent, state);
    final int itemCount = state.getItemCount();
    final int childCount = parent.getChildCount();
    final int left = parent.getPaddingLeft();
    final int right = parent.getWidth() - parent.getPaddingRight();

    for (int i = 0; i < childCount; i++) {
        View childView = parent.getChildAt(i);
        int position = parent.getChildAdapterPosition(childView);
        //默认第一个就是有个Group
        if (isFirstInGroup(position) || i == 0) {
            //绘制悬浮
            int bottom = Math.max(mGroupHeight, (childView.getTop() + parent.getPaddingTop()));//决定当前顶部第一个悬浮Group的bottom
            if (position + 1 < itemCount) {
                //下一组的第一个View接近头部
                int viewBottom = childView.getBottom();
                if (isLastLineInGroup(parent, position) && viewBottom < bottom) {
                    bottom = viewBottom;
                }
            }
            drawDecoration(c, position, left, right, bottom);
            stickyHeaderPosArray.put(position, bottom);
        } else {
            //绘制分割线
            drawDivide(c, parent, childView, position, left, right);
        }
    }
}

Source File: DividedItemDecoration.java From example with Apache License 2.0

5 votes

private void drawHorizontal(Canvas c, RecyclerView parent) {
    final int top = parent.getPaddingTop();
    final int bottom = parent.getHeight() - parent.getPaddingBottom();
    final int childCount = parent.getChildCount();

    for (int i = 0; i < childCount; i++) {
        final View child = parent.getChildAt(i);
        final RecyclerView.LayoutParams params = (RecyclerView.LayoutParams) child.getLayoutParams();
        final int left = child.getRight() + params.rightMargin;
        final int right = left + mDivider.getIntrinsicHeight();
        mDivider.setBounds(left, top, right, bottom);
        mDivider.draw(c);
    }
}

Java Code Examples for android.support.v7.widget.RecyclerView#getChildCount()