android.support.v7.widget.RecyclerView#getHeight

Source File: DividerItemDecoration.java From CoordinatorLayoutExample 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;
//            绘制
            final int right = left + mDivider.getIntrinsicHeight();
            mDivider.setBounds(left, top, right, bottom);
            mDivider.draw(c);
        }
    }

Source File: RecycleViewScrollHelper.java From Android with MIT License

6 votes

/**
 * Detect whether to slide to the bottom of the item and callback events
 *
 * @param recyclerView
 * @param lastItemPosition
 * @param itemCount
 * @return
 */
private boolean checkIfScrollToBottom(RecyclerView recyclerView, int lastItemPosition, int itemCount) {
    isScrollBottom = false;
    if (lastItemPosition + 1 == itemCount) {
        if (mIsCheckBottomFullRecycle) {
            int childCount = recyclerView.getChildCount();
            View lastChildView = recyclerView.getChildAt(childCount - 1);
            View firstChildView = recyclerView.getChildAt(0);
            int top = firstChildView.getTop();
            int bottom = lastChildView.getBottom();
            int bottomEdge = recyclerView.getHeight() - recyclerView.getPaddingBottom() + mBottomOffsetFaultTolerance;
            int topEdge = recyclerView.getPaddingTop() + mTopOffsetFaultTolerance;
            if (bottom <= bottomEdge && top < topEdge) {
                mScrollPositionChangedListener.onScrollToBottom();
                isScrollBottom = true;
            } else {
                mScrollPositionChangedListener.onScrollToUnknown(false, true);
            }
        } else {
            mScrollPositionChangedListener.onScrollToBottom();
            isScrollBottom = true;
        }
    }
    return isScrollBottom;
}

Source File: DividerItemDecoration.java From CrawlerForReader 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();

    int childCount = parent.getChildCount();
    childCount = showLastLine ? childCount : childCount - 1;
    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 + 1;
        mDivider.setBounds(left, top, right, bottom);
        mDivider.draw(c);
    }
}

Source File: DividerItemDecoration.java From NIM_Android_UIKit with MIT License

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++) {
        if (!needDrawDecoration(parent, i)) {
            continue;
        }
        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: DividerItemDecoration.java From MeetMusic 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;
		final int right = left + mDivider.getIntrinsicHeight();
		mDivider.setBounds(left, top, right, bottom);
		mDivider.draw(c);
	}
}

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

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 RecycleClick with Apache License 2.0

5 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;
        final int right = left + mDivider.getIntrinsicHeight();
        mDivider.setBounds(left, top, right, bottom);
        mDivider.draw(c);
    }
}

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

5 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;
        final int right = left + mDivider.getIntrinsicHeight();
        mDivider.setBounds(left, top, right, bottom);
        mDivider.draw(c);
    }
}

Source File: RecyclerviewUtils.java From timecat with Apache License 2.0

5 votes

public static boolean isChildInCenterY(RecyclerView recyclerView, View view) {
    int childCount = recyclerView.getChildCount();
    int[] lvLocationOnScreen = new int[2];
    int[] vLocationOnScreen = new int[2];
    recyclerView.getLocationOnScreen(lvLocationOnScreen);
    int middleY = lvLocationOnScreen[1] + recyclerView.getHeight() / 2;
    if (childCount > 0) {
        view.getLocationOnScreen(vLocationOnScreen);
        if (vLocationOnScreen[1] <= middleY && vLocationOnScreen[1] + view.getHeight() >= middleY) {
            return true;
        }
    }
    return false;
}

Source File: VerticalDividerItemDecoration.java From AFBaseLibrary with Apache License 2.0

5 votes

@Override
protected Rect getDividerBound(int position, RecyclerView parent, View child) {
    Rect bounds = new Rect(0, 0, 0, 0);
    int transitionX = (int) ViewCompat.getTranslationX(child);
    int transitionY = (int) ViewCompat.getTranslationY(child);
    RecyclerView.LayoutParams params = (RecyclerView.LayoutParams) child.getLayoutParams();
    bounds.top = parent.getPaddingTop() +
            mMarginProvider.dividerTopMargin(position, parent) + transitionY;
    bounds.bottom = parent.getHeight() - parent.getPaddingBottom() -
            mMarginProvider.dividerBottomMargin(position, parent) + transitionY;

    int dividerSize = getDividerSize(position, parent);
    if (mDividerType == DividerType.DRAWABLE) {
        // set left and right position of divider
        if (mPositionInsideItem) {
            bounds.right = child.getRight() + params.leftMargin + transitionX;
            bounds.left = bounds.right - dividerSize;
        } else {
            bounds.left = child.getRight() + params.leftMargin + transitionX;
            bounds.right = bounds.left + dividerSize;
        }
    } else {
        // set center point of divider
        if (mPositionInsideItem) {
            bounds.left = child.getRight() + params.leftMargin - dividerSize / 2 + transitionX;
        } else {
            bounds.left = child.getRight() + params.leftMargin + dividerSize / 2 + transitionX;
        }
        bounds.right = bounds.left;
    }

    return bounds;
}

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

5 votes

public static boolean isChildInCenterY(RecyclerView recyclerView, View view) {
    int childCount = recyclerView.getChildCount();
    int[] lvLocationOnScreen = new int[2];
    int[] vLocationOnScreen = new int[2];
    recyclerView.getLocationOnScreen(lvLocationOnScreen);
    int middleY = lvLocationOnScreen[1] + recyclerView.getHeight() / 2;
    if (childCount > 0) {
        view.getLocationOnScreen(vLocationOnScreen);
        if (vLocationOnScreen[1] <= middleY && vLocationOnScreen[1] + view.getHeight() >= middleY) {
            return true;
        }
    }
    return false;
}

Source File: DividerItemDecoration.java From nono-android with GNU General Public License v3.0

5 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;
        final int right = left + mDivider.getIntrinsicHeight();
        mDivider.setBounds(left, top, right, bottom);
        mDivider.draw(c);
    }
}

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

5 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;
        final int right = left + mDivider.getIntrinsicHeight();
        mDivider.setBounds(left, top, right, bottom);
        mDivider.draw(c);
    }
}

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

5 votes

@Override
public void onDrawOver(Canvas c, RecyclerView parent, RecyclerView.State state) {
    if (mDivider == null) {
        super.onDrawOver(c, parent, state);
        return;
    }

    // Initialization needed to avoid compiler warning
    int left = 0, right = 0, top = 0, bottom = 0, size;
    int orientation = mOrientation != -1 ? mOrientation : getOrientation(parent);
    int childCount = parent.getChildCount();

    if (orientation == LinearLayoutManager.VERTICAL) {
        size = mDivider.getIntrinsicHeight();
        left = parent.getPaddingLeft();
        right = parent.getWidth() - parent.getPaddingRight();
    } else { //horizontal
        size = mDivider.getIntrinsicWidth();
        top = parent.getPaddingTop();
        bottom = parent.getHeight() - parent.getPaddingBottom();
    }

    for (int i = 1; i < childCount; i++) {
        View child = parent.getChildAt(i);
        RecyclerView.LayoutParams params = (RecyclerView.LayoutParams) child.getLayoutParams();

        if (orientation == LinearLayoutManager.VERTICAL) {
            top = child.getTop() - params.topMargin - size;
            bottom = top + size;
        } else { //horizontal
            left = child.getLeft() - params.leftMargin;
            right = left + size;
        }
        mDivider.setBounds(left, top, right, bottom);
        mDivider.draw(c);
    }
}

Source File: TransformItemDecoration.java From ucar-weex-core with Apache License 2.0

5 votes

@Override
public void onDrawOver(Canvas c, RecyclerView parent, RecyclerView.State state) {
  super.onDrawOver(c, parent, state);
  int width = parent.getWidth();
  int height = parent.getHeight();
  for (int i = 0,count=parent.getChildCount(); i < count; i++) {
    updateItem(parent.getChildAt(i),width,height);
  }
}

Source File: LinePagerIndicatorDecoration.java From recyclerviewItemDecorations with MIT License

5 votes

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

  int itemCount = parent.getAdapter().getItemCount();

  // center horizontally, calculate width and subtract half from center
  float totalLength = mIndicatorItemLength * itemCount;
  float paddingBetweenItems = Math.max(0, itemCount - 1) * mIndicatorItemPadding;
  float indicatorTotalWidth = totalLength + paddingBetweenItems;
  float indicatorStartX = (parent.getWidth() - indicatorTotalWidth) / 2F;

  // center vertically in the allotted space
  float indicatorPosY = parent.getHeight() - mIndicatorHeight / 2F;

  drawInactiveIndicators(c, indicatorStartX, indicatorPosY, itemCount);


  // find active page (which should be highlighted)
  LinearLayoutManager layoutManager = (LinearLayoutManager) parent.getLayoutManager();
  int activePosition = layoutManager.findFirstVisibleItemPosition();
  if (activePosition == RecyclerView.NO_POSITION) {
    return;
  }

  // find offset of active page (if the user is scrolling)
  final View activeChild = layoutManager.findViewByPosition(activePosition);
  int left = activeChild.getLeft();
  int width = activeChild.getWidth();

  // on swipe the active item will be positioned from [-width, 0]
  // interpolate offset for smooth animation
  float progress = mInterpolator.getInterpolation(left * -1 / (float) width);

  drawHighlights(c, indicatorStartX, indicatorPosY, activePosition, progress, itemCount);
}

Source File: DividerItemDecoration.java From Hify with MIT License

5 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;
        final int right = left + mDivider.getIntrinsicHeight();
        mDivider.setBounds(left, top, right, bottom);
        mDivider.draw(c);
    }
}

Source File: DividerItemDecoration.java From ZhihuDaily with MIT License

5 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;
        final int right = left + mDivider.getIntrinsicHeight();
        mDivider.setBounds(left, (int) (0.06f * bottom + top), right, (int) (0.9 * bottom));
        mDivider.draw(c);
    }
}

Source File: DividerItemDecoration.java From KUtils-master with Apache License 2.0

4 votes

/**
 * 绘制横向 item 分割线 这里的parent其实是显示在屏幕显示的这部分
 */
private void drawHorizontal(Canvas canvas, RecyclerView parent) {
    /**
     当orientation为 Horizontal 时，Item的分割线为多条竖直的条形
     所以，分割线的Top和Bottom就比较容易确定
     top = parent.top = parent.paddingTop
     bottom = parent.getHeight() - parent.getPaddingBottom()
     分割线的 left 和 right 则需要计算出有多少个Item
     根据Item的位置获取到child的位置坐标
     所以分割线的left = child的右边的坐标 + child的外边距的距离
     left = child.right + parms.rightMargin
     然后根据左边 + 分割线的宽度 得到右边的坐标
     right = left + mDivider.getIntrinsicHeight()
     为了统一分割线的间隔，故共同使用Height的数值作为间隔的距离
     */
    final int top = parent.getPaddingTop();
    final int bottom = parent.getHeight() - 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;

        /**横向列表*/
        if (i == 0) {
            if (isMarginTopShow) {
                /**第一个view，可以在顶部加一个margin值*/
                int leftF = child.getLeft() - layoutParams.leftMargin - mDividerHeight;
                int rightF = child.getLeft() - layoutParams.leftMargin;
                if (mDivider != null) {
                    mDivider.setBounds(leftF, top, rightF, bottom);
                    mDivider.draw(canvas);
                    if (isMiddleShow) {
                        mDivider.setBounds(left, top, right, bottom);
                        mDivider.draw(canvas);
                    }
                }
                if (mPaint != null) {
                    canvas.drawRect(leftF, top, rightF, bottom, mPaint);
                    if (isMiddleShow) {
                        canvas.drawRect(left, top, right, bottom, mPaint);
                    }
                }
            } else {
                if (isMiddleShow) {
                    if (mDivider != null) {
                        mDivider.setBounds(left, top, right, bottom);
                        mDivider.draw(canvas);
                    }
                    if (mPaint != null) {
                        canvas.drawRect(left, top, right, bottom, mPaint);
                    }
                }
            }
        } else {
            if (isMiddleShow || i >= childSize - 1) {
                /**画竖线，就是往右偏移一个分割线的宽度*/
                if (mDivider != null) {
                    mDivider.setBounds(left, top, right, bottom);
                    mDivider.draw(canvas);
                }
                if (mPaint != null) {
                    canvas.drawRect(left, top, right, bottom, mPaint);
                }
            }
        }


    }

}

Source File: VerticalDividerItemDecoration.java From RecyclerView-FlexibleDivider with Apache License 2.0

4 votes

@Override
protected Rect getDividerBound(int position, RecyclerView parent, View child) {
    Rect bounds = new Rect(0, 0, 0, 0);
    int transitionX = (int) ViewCompat.getTranslationX(child);
    int transitionY = (int) ViewCompat.getTranslationY(child);
    RecyclerView.LayoutParams params = (RecyclerView.LayoutParams) child.getLayoutParams();
    bounds.top = parent.getPaddingTop() +
            mMarginProvider.dividerTopMargin(position, parent) + transitionY;
    bounds.bottom = parent.getHeight() - parent.getPaddingBottom() -
            mMarginProvider.dividerBottomMargin(position, parent) + transitionY;

    int dividerSize = getDividerSize(position, parent);
    boolean isReverseLayout = isReverseLayout(parent);
    if (mDividerType == DividerType.DRAWABLE) {
        // set left and right position of divider
        if (isReverseLayout) {
            bounds.right = child.getLeft() - params.leftMargin + transitionX;
            bounds.left = bounds.right - dividerSize;
        } else {
            bounds.left = child.getRight() + params.rightMargin + transitionX;
            bounds.right = bounds.left + dividerSize;
        }
    } else {
        // set center point of divider
        int halfSize = dividerSize / 2;
        if (isReverseLayout) {
            bounds.left = child.getLeft() - params.leftMargin - halfSize + transitionX;
        } else {
            bounds.left = child.getRight() + params.rightMargin + halfSize + transitionX;
        }
        bounds.right = bounds.left;
    }

    if (mPositionInsideItem) {
        if (isReverseLayout) {
            bounds.left += dividerSize;
            bounds.right += dividerSize;
        } else {
            bounds.left -= dividerSize;
            bounds.right -= dividerSize;
        }
    }

    return bounds;
}

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