Examples with END android.support.v7.widget.helper.ItemTouchHelper.END used on opensource projects

Example 66 with END

use of android.support.v7.widget.helper.ItemTouchHelper.END in project vlayout by alibaba.

the class VirtualLayoutManager method onLayoutChildren.

@Override
public void onLayoutChildren(RecyclerView.Recycler recycler, RecyclerView.State state) {
    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN_MR2) {
        Trace.beginSection(TRACE_LAYOUT);
    }
    if (mNoScrolling && state.didStructureChange()) {
        mSpaceMeasured = false;
        mSpaceMeasuring = true;
    }
    runPreLayout(recycler, state);
    try {
        super.onLayoutChildren(recycler, state);
    } catch (Exception e) {
        e.printStackTrace();
        throw e;
    } finally {
        // MaX_VALUE means invalidate scrolling offset - no scroll
        // hack to indicate its an initial layout
        runPostLayout(recycler, state, Integer.MAX_VALUE);
    }
    if ((mNestedScrolling || mNoScrolling) && mSpaceMeasuring) {
        // measure required, so do measure
        mSpaceMeasured = true;
        // get last child
        int childCount = getChildCount();
        View lastChild = getChildAt(childCount - 1);
        if (lastChild != null) {
            RecyclerView.LayoutParams params = (RecyclerView.LayoutParams) lastChild.getLayoutParams();
            // found the end of last child view
            mMeasuredFullSpace = getDecoratedBottom(lastChild) + params.bottomMargin + computeAlignOffset(lastChild, true, false);
            if (mRecyclerView != null && mNestedScrolling) {
                ViewParent parent = mRecyclerView.getParent();
                if (parent instanceof View) {
                    // make sure the fullspace be the min value of measured space and parent's height
                    mMeasuredFullSpace = Math.min(mMeasuredFullSpace, ((View) parent).getMeasuredHeight());
                }
            }
        } else {
            mSpaceMeasuring = false;
        }
        mSpaceMeasuring = false;
        if (mRecyclerView != null && getItemCount() > 0) {
            // relayout
            mRecyclerView.post(new Runnable() {

                @Override
                public void run() {
                    // post relayout
                    if (mRecyclerView != null)
                        mRecyclerView.requestLayout();
                }
            });
        }
    }
    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN_MR2) {
        Trace.endSection();
    }
}

Example 67 with END

use of android.support.v7.widget.helper.ItemTouchHelper.END in project vlayout by alibaba.

the class BaseLayoutHelper method nextView.

/**
 * Retrieve next view and add it into layout, this is to make sure that view are added by order
 *
 * @param recycler    recycler generate views
 * @param layoutState current layout state
 * @param helper      helper to add views
 * @param result      chunk result to tell layoutManager whether layout process goes end
 * @return next view to render, null if no more view available
 */
@Nullable
public final View nextView(RecyclerView.Recycler recycler, LayoutStateWrapper layoutState, LayoutManagerHelper helper, LayoutChunkResult result) {
    View view = layoutState.next(recycler);
    if (view == null) {
        // no more items to layout.
        if (DEBUG && !layoutState.hasScrapList()) {
            throw new RuntimeException("received null view when unexpected");
        }
        // if there is no more views can be retrieved, this layout process is finished
        result.mFinished = true;
        return null;
    }
    helper.addChildView(layoutState, view);
    return view;
}

Example 68 with END

use of android.support.v7.widget.helper.ItemTouchHelper.END in project vlayout by alibaba.

the class RangeGridLayoutHelper method assignSpans.

private void assignSpans(GridRangeStyle rangeStyle, RecyclerView.Recycler recycler, RecyclerView.State state, int count, int consumedSpanCount, boolean layingOutInPrimaryDirection, LayoutManagerHelper helper) {
    int span, spanDiff, start, end, diff;
    // make sure we traverse from min position to max position
    if (layingOutInPrimaryDirection) {
        start = 0;
        end = count;
        diff = 1;
    } else {
        start = count - 1;
        end = -1;
        diff = -1;
    }
    if (helper.getOrientation() == VERTICAL && helper.isDoLayoutRTL()) {
        // start from last span
        span = consumedSpanCount - 1;
        spanDiff = -1;
    } else {
        span = 0;
        spanDiff = 1;
    }
    for (int i = start; i != end; i += diff) {
        View view = rangeStyle.mSet[i];
        int spanSize = getSpanSize(rangeStyle.mSpanSizeLookup, recycler, state, helper.getPosition(view));
        if (spanDiff == -1 && spanSize > 1) {
            rangeStyle.mSpanIndices[i] = span - (spanSize - 1);
        } else {
            rangeStyle.mSpanIndices[i] = span;
        }
        span += spanDiff * spanSize;
    }
}

Example 69 with END

use of android.support.v7.widget.helper.ItemTouchHelper.END in project vlayout by alibaba.

the class RangeGridLayoutHelper method layoutViews.

// TODO optimize this method
@Override
public void layoutViews(RecyclerView.Recycler recycler, RecyclerView.State state, LayoutStateWrapper layoutState, LayoutChunkResult result, LayoutManagerHelper helper) {
    // reach the end of this layout
    if (isOutOfRange(layoutState.getCurrentPosition())) {
        return;
    }
    boolean isStartLine = false, isEndLine = false;
    boolean isSecondStartLine = false, isSecondEndLine = false;
    final int currentPosition = layoutState.getCurrentPosition();
    GridRangeStyle rangeStyle = mRangeStyle.findRangeStyleByPosition(currentPosition);
    final int itemDirection = layoutState.getItemDirection();
    final boolean layingOutInPrimaryDirection = itemDirection == LayoutStateWrapper.ITEM_DIRECTION_TAIL;
    OrientationHelperEx orientationHelper = helper.getMainOrientationHelper();
    final boolean layoutInVertical = helper.getOrientation() == VERTICAL;
    if (layoutInVertical) {
        mTotalSize = helper.getContentWidth() - helper.getPaddingRight() - helper.getPaddingLeft() - rangeStyle.getFamilyHorizontalMargin() - rangeStyle.getFamilyHorizontalPadding();
        rangeStyle.mSizePerSpan = (int) ((mTotalSize - (rangeStyle.mSpanCount - 1) * rangeStyle.mHGap) * 1.0f / rangeStyle.mSpanCount + 0.5f);
    } else {
        mTotalSize = helper.getContentHeight() - helper.getPaddingBottom() - helper.getPaddingTop() - rangeStyle.getFamilyVerticalMargin() - rangeStyle.getFamilyVerticalPadding();
        rangeStyle.mSizePerSpan = (int) ((mTotalSize - (rangeStyle.mSpanCount - 1) * rangeStyle.mVGap) * 1.0f / rangeStyle.mSpanCount + 0.5f);
    }
    int count = 0;
    int consumedSpanCount = 0;
    int remainingSpan = rangeStyle.mSpanCount;
    rangeStyle.ensureSpanCount();
    if (!layingOutInPrimaryDirection) {
        // fill the remaining spacing this row
        int itemSpanIndex = getSpanIndex(rangeStyle.mSpanSizeLookup, rangeStyle.mSpanCount, recycler, state, currentPosition);
        int itemSpanSize = getSpanSize(rangeStyle.mSpanSizeLookup, recycler, state, currentPosition);
        remainingSpan = itemSpanIndex + itemSpanSize;
        // should find the last element of this row
        if (itemSpanIndex != rangeStyle.mSpanCount - 1) {
            int index = layoutState.getCurrentPosition();
            int revRemainingSpan = rangeStyle.mSpanCount - remainingSpan;
            while (count < rangeStyle.mSpanCount && revRemainingSpan > 0) {
                // go reverse direction to find views fill current row
                index -= itemDirection;
                if (rangeStyle.isOutOfRange(index)) {
                    break;
                }
                final int spanSize = getSpanSize(rangeStyle.mSpanSizeLookup, recycler, state, index);
                if (spanSize > rangeStyle.mSpanCount) {
                    throw new IllegalArgumentException("Item at position " + index + " requires " + spanSize + " spans but RangeGridLayoutHelper has only " + rangeStyle.mSpanCount + " spans.");
                }
                View view = layoutState.retrieve(recycler, index);
                if (view == null) {
                    break;
                }
                if (!isStartLine) {
                    isStartLine = helper.getReverseLayout() ? index == mRangeStyle.getRange().getUpper().intValue() : index == mRangeStyle.getRange().getLower().intValue();
                }
                if (!isEndLine) {
                    isEndLine = helper.getReverseLayout() ? index == mRangeStyle.getRange().getLower().intValue() : index == mRangeStyle.getRange().getUpper().intValue();
                }
                revRemainingSpan -= spanSize;
                if (revRemainingSpan < 0) {
                    break;
                }
                consumedSpanCount += spanSize;
                rangeStyle.mSet[count] = view;
                count++;
            }
            if (count > 0) {
                // reverse array
                int s = 0, e = count - 1;
                while (s < e) {
                    View temp = rangeStyle.mSet[s];
                    rangeStyle.mSet[s] = rangeStyle.mSet[e];
                    rangeStyle.mSet[e] = temp;
                    s++;
                    e--;
                }
            }
        }
    }
    while (count < rangeStyle.mSpanCount && layoutState.hasMore(state) && remainingSpan > 0) {
        int pos = layoutState.getCurrentPosition();
        if (rangeStyle.isOutOfRange(pos)) {
            if (DEBUG) {
                Log.d(TAG, "pos [" + pos + "] is out of range");
            }
            break;
        }
        final int spanSize = getSpanSize(rangeStyle.mSpanSizeLookup, recycler, state, pos);
        if (spanSize > rangeStyle.mSpanCount) {
            throw new IllegalArgumentException("Item at position " + pos + " requires " + spanSize + " spans but GridLayoutManager has only " + rangeStyle.mSpanCount + " spans.");
        }
        remainingSpan -= spanSize;
        if (remainingSpan < 0) {
            // item did not fit into this row or column
            break;
        }
        if (!isStartLine) {
            isStartLine = helper.getReverseLayout() ? pos == mRangeStyle.getRange().getUpper().intValue() : pos == mRangeStyle.getRange().getLower().intValue();
        }
        if (!isSecondStartLine) {
            if (!rangeStyle.equals(mRangeStyle)) {
                isSecondStartLine = helper.getReverseLayout() ? pos == rangeStyle.getRange().getUpper().intValue() : pos == rangeStyle.getRange().getLower().intValue();
            }
        }
        if (!isEndLine) {
            isEndLine = helper.getReverseLayout() ? pos == mRangeStyle.getRange().getLower().intValue() : pos == mRangeStyle.getRange().getUpper().intValue();
        }
        if (!isSecondEndLine) {
            if (!rangeStyle.equals(mRangeStyle)) {
                isSecondEndLine = helper.getReverseLayout() ? pos == rangeStyle.getRange().getLower().intValue() : pos == rangeStyle.getRange().getUpper().intValue();
                if (DEBUG) {
                    Log.d(TAG, "isSecondEndLineLogic:" + isSecondEndLine + "  helper.getReverseLayout()=" + helper.getReverseLayout() + " pos=" + pos + " rangeStyle.getRange().getLower()=" + rangeStyle.getRange().getLower() + " rangeStyle.getRange().getUpper()=" + rangeStyle.getRange().getUpper());
                }
            }
        }
        View view = layoutState.next(recycler);
        if (view == null) {
            break;
        }
        consumedSpanCount += spanSize;
        rangeStyle.mSet[count] = view;
        count++;
    }
    if (count == 0) {
        return;
    }
    int maxSize = 0;
    // we should assign spans before item decor offsets are calculated
    assignSpans(rangeStyle, recycler, state, count, consumedSpanCount, layingOutInPrimaryDirection, helper);
    if (remainingSpan > 0 && (count == consumedSpanCount) && rangeStyle.mIsAutoExpand) {
        // autoExpand only support when each cell occupy one span.
        if (layoutInVertical) {
            rangeStyle.mSizePerSpan = (mTotalSize - (count - 1) * rangeStyle.mHGap) / count;
        } else {
            rangeStyle.mSizePerSpan = (mTotalSize - (count - 1) * rangeStyle.mVGap) / count;
        }
    } else if (!layingOutInPrimaryDirection && remainingSpan == 0 && (count == consumedSpanCount) && rangeStyle.mIsAutoExpand) {
        // autoExpand only support when each cell occupy one span.
        if (layoutInVertical) {
            rangeStyle.mSizePerSpan = (mTotalSize - (count - 1) * rangeStyle.mHGap) / count;
        } else {
            rangeStyle.mSizePerSpan = (mTotalSize - (count - 1) * rangeStyle.mVGap) / count;
        }
    }
    boolean weighted = false;
    if (rangeStyle.mWeights != null && rangeStyle.mWeights.length > 0) {
        weighted = true;
        int totalSpace;
        if (layoutInVertical) {
            totalSpace = mTotalSize - (count - 1) * rangeStyle.mHGap;
        } else {
            totalSpace = mTotalSize - (count - 1) * rangeStyle.mVGap;
        }
        // calculate width with weight in percentage
        int eqCnt = 0, remainingSpace = totalSpace;
        int colCnt = (remainingSpan > 0 && rangeStyle.mIsAutoExpand) ? count : rangeStyle.mSpanCount;
        for (int i = 0; i < colCnt; i++) {
            if (i < rangeStyle.mWeights.length && !Float.isNaN(rangeStyle.mWeights[i]) && rangeStyle.mWeights[i] >= 0) {
                float weight = rangeStyle.mWeights[i];
                rangeStyle.mSpanCols[i] = (int) (weight * 1.0f / 100 * totalSpace + 0.5f);
                remainingSpace -= rangeStyle.mSpanCols[i];
            } else {
                eqCnt++;
                rangeStyle.mSpanCols[i] = -1;
            }
        }
        if (eqCnt > 0) {
            int eqLength = remainingSpace / eqCnt;
            for (int i = 0; i < colCnt; i++) {
                if (rangeStyle.mSpanCols[i] < 0) {
                    rangeStyle.mSpanCols[i] = eqLength;
                }
            }
        }
    }
    for (int i = 0; i < count; i++) {
        View view = rangeStyle.mSet[i];
        helper.addChildView(layoutState, view, layingOutInPrimaryDirection ? -1 : 0);
        int spanSize = getSpanSize(rangeStyle.mSpanSizeLookup, recycler, state, helper.getPosition(view)), spec;
        if (weighted) {
            final int index = rangeStyle.mSpanIndices[i];
            int spanLength = 0;
            for (int j = 0; j < spanSize; j++) {
                spanLength += rangeStyle.mSpanCols[j + index];
            }
            spec = View.MeasureSpec.makeMeasureSpec(Math.max(0, spanLength), View.MeasureSpec.EXACTLY);
        } else {
            spec = View.MeasureSpec.makeMeasureSpec(rangeStyle.mSizePerSpan * spanSize + Math.max(0, spanSize - 1) * (layoutInVertical ? rangeStyle.mHGap : rangeStyle.mVGap), View.MeasureSpec.EXACTLY);
        }
        final LayoutParams lp = (LayoutParams) view.getLayoutParams();
        if (helper.getOrientation() == VERTICAL) {
            helper.measureChildWithMargins(view, spec, getMainDirSpec(rangeStyle, lp.height, mTotalSize, View.MeasureSpec.getSize(spec), lp.mAspectRatio));
        } else {
            helper.measureChildWithMargins(view, getMainDirSpec(rangeStyle, lp.width, mTotalSize, View.MeasureSpec.getSize(spec), lp.mAspectRatio), View.MeasureSpec.getSize(spec));
        }
        final int size = orientationHelper.getDecoratedMeasurement(view);
        if (size > maxSize) {
            maxSize = size;
        }
    }
    // views that did not measure the maxSize has to be re-measured
    final int maxMeasureSpec = getMainDirSpec(rangeStyle, maxSize, mTotalSize, 0, Float.NaN);
    for (int i = 0; i < count; i++) {
        final View view = rangeStyle.mSet[i];
        if (orientationHelper.getDecoratedMeasurement(view) != maxSize) {
            int spanSize = getSpanSize(rangeStyle.mSpanSizeLookup, recycler, state, helper.getPosition(view)), spec;
            if (weighted) {
                final int index = rangeStyle.mSpanIndices[i];
                int spanLength = 0;
                for (int j = 0; j < spanSize; j++) {
                    spanLength += rangeStyle.mSpanCols[j + index];
                }
                spec = View.MeasureSpec.makeMeasureSpec(Math.max(0, spanLength), View.MeasureSpec.EXACTLY);
            } else {
                spec = View.MeasureSpec.makeMeasureSpec(rangeStyle.mSizePerSpan * spanSize + Math.max(0, spanSize - 1) * (layoutInVertical ? rangeStyle.mHGap : rangeStyle.mVGap), View.MeasureSpec.EXACTLY);
            }
            if (helper.getOrientation() == VERTICAL) {
                helper.measureChildWithMargins(view, spec, maxMeasureSpec);
            } else {
                helper.measureChildWithMargins(view, maxMeasureSpec, spec);
            }
        }
    }
    int startSpace = 0, endSpace = 0;
    int secondStartSpace = 0, secondEndSpace = 0;
    boolean isLayoutEnd = layoutState.getLayoutDirection() == VirtualLayoutManager.LayoutStateWrapper.LAYOUT_END;
    final boolean isOverLapMargin = helper.isEnableMarginOverLap();
    if (isStartLine) {
        startSpace = computeStartSpace(helper, layoutInVertical, isLayoutEnd, isOverLapMargin);
    }
    if (isSecondStartLine) {
        secondStartSpace = (layoutInVertical ? rangeStyle.getMarginTop() + rangeStyle.getPaddingTop() : rangeStyle.getMarginLeft() + rangeStyle.getPaddingLeft());
    }
    if (isEndLine) {
        endSpace = layoutInVertical ? mRangeStyle.getMarginBottom() + mRangeStyle.getPaddingBottom() : mRangeStyle.getMarginRight() + mRangeStyle.getPaddingRight();
    }
    if (isSecondEndLine) {
        secondEndSpace = (layoutInVertical ? rangeStyle.getMarginBottom() + rangeStyle.getPaddingBottom() : rangeStyle.getMarginRight() + rangeStyle.getPaddingRight());
        if (DEBUG) {
            Log.d(TAG, "isSecondEndLineLogic:" + isSecondEndLine + " pos=" + currentPosition + " secondEndSpace=" + secondEndSpace);
        }
    }
    result.mConsumed = maxSize + startSpace + endSpace + secondStartSpace + secondEndSpace;
    final boolean layoutStart = layoutState.getLayoutDirection() == LayoutStateWrapper.LAYOUT_START;
    int consumedGap = 0;
    if (!mLayoutWithAnchor) {
        if (!layoutStart) {
            if (!isStartLine) {
                if (isSecondStartLine) {
                    consumedGap = (layoutInVertical ? rangeStyle.mParent.mVGap : rangeStyle.mParent.mHGap);
                    if (DEBUG) {
                        Log.d(TAG, "⬇ " + currentPosition + " 1 " + consumedGap + " gap");
                    }
                } else {
                    consumedGap = (layoutInVertical ? rangeStyle.mVGap : rangeStyle.mHGap);
                    if (DEBUG) {
                        Log.d(TAG, "⬇ " + currentPosition + " 2 " + consumedGap + " gap");
                    }
                }
            }
        } else {
            if (!isEndLine) {
                if (isSecondEndLine) {
                    consumedGap = (layoutInVertical ? rangeStyle.mParent.mVGap : rangeStyle.mParent.mHGap);
                    if (DEBUG) {
                        Log.d(TAG, "⬆ " + currentPosition + " 3 " + consumedGap + " gap");
                    }
                } else {
                    consumedGap = (layoutInVertical ? rangeStyle.mVGap : rangeStyle.mHGap);
                    if (DEBUG) {
                        Log.d(TAG, "⬆ " + currentPosition + " 4 " + consumedGap + " gap");
                    }
                }
            }
        }
    }
    result.mConsumed += consumedGap;
    if (result.mConsumed <= 0) {
        result.mConsumed = 0;
    }
    int lastUnconsumedSpace = 0;
    /**
     * layoutView() may be triggered by layoutManager's scrollInternalBy() or onFocusSearchFailed() or onLayoutChildren()
     *
     * In case of scrollInternalBy() or onFocusSearchFailed(), layoutState.isRefreshLayout() == false, and layoutState.mOffset = ChildClosestToExpose + alignOffset,
     * see {@link com.alibaba.android.vlayout.ExposeLinearLayoutManagerEx#updateLayoutStateExpose(int, int, boolean, State)},
     * this means last line's layout padding or margin is not really consumed, so considering it before layout new line.
     *
     * In case of onLayoutChildren(), layoutState.isRefreshLayout() == true, and layoutState.mOffset = anchorInfo.mCoordinate = anchorChild.start + alignOffset,
     * see {@link com.alibaba.android.vlayout.ExposeLinearLayoutManagerEx#updateAnchorInfoForLayoutExpose(State, AnchorInfo)},
     * this means last line's layout padding or margin is consumed.
     */
    if (!layoutState.isRefreshLayout()) {
        if (layoutStart) {
            int lastLinePosition = currentPosition + 1;
            if (!isOutOfRange(lastLinePosition)) {
                RangeStyle<GridRangeStyle> neighbourRange = mRangeStyle.findRangeStyleByPosition(lastLinePosition);
                if (neighbourRange.isFirstPosition(lastLinePosition)) {
                    lastUnconsumedSpace = layoutInVertical ? neighbourRange.getMarginTop() + neighbourRange.getPaddingTop() : neighbourRange.getMarginLeft() + neighbourRange.getPaddingLeft();
                    if (DEBUG) {
                        Log.d(TAG, "⬆ " + currentPosition + " 1 " + lastUnconsumedSpace + " last");
                    }
                }
            }
        } else {
            int lastLinePosition = currentPosition - 1;
            if (!isOutOfRange(lastLinePosition)) {
                RangeStyle<GridRangeStyle> neighbourRange = mRangeStyle.findRangeStyleByPosition(lastLinePosition);
                if (neighbourRange.isLastPosition(lastLinePosition)) {
                    lastUnconsumedSpace = layoutInVertical ? neighbourRange.getMarginBottom() + neighbourRange.getPaddingBottom() : neighbourRange.getMarginRight() + neighbourRange.getPaddingRight();
                    if (DEBUG) {
                        Log.d(TAG, "⬇ " + currentPosition + " 2 " + lastUnconsumedSpace + " last");
                    }
                }
            }
        }
    }
    if (DEBUG) {
        Log.d(TAG, (layoutStart ? "⬆ " : "⬇ ") + currentPosition + " consumed " + result.mConsumed + " startSpace " + startSpace + " endSpace " + endSpace + " secondStartSpace " + secondStartSpace + " secondEndSpace " + secondEndSpace + " lastUnconsumedSpace " + lastUnconsumedSpace + " isSecondEndLine=" + isSecondEndLine);
    }
    int left = 0, right = 0, top = 0, bottom = 0;
    if (layoutInVertical) {
        if (layoutStart) {
            bottom = layoutState.getOffset() - endSpace - secondEndSpace - (consumedGap) - lastUnconsumedSpace;
            top = bottom - maxSize;
        } else {
            top = layoutState.getOffset() + startSpace + secondStartSpace + (consumedGap) + lastUnconsumedSpace;
            bottom = top + maxSize;
        }
    } else {
        if (layoutStart) {
            right = layoutState.getOffset() - endSpace - (consumedGap) - lastUnconsumedSpace;
            left = right - maxSize;
        } else {
            left = layoutState.getOffset() + startSpace + (consumedGap) + lastUnconsumedSpace;
            right = left + maxSize;
        }
    }
    for (int i = 0; i < count; i++) {
        View view = rangeStyle.mSet[i];
        final int index = rangeStyle.mSpanIndices[i];
        LayoutParams params = (LayoutParams) view.getLayoutParams();
        if (layoutInVertical) {
            if (weighted) {
                left = helper.getPaddingLeft() + rangeStyle.getFamilyMarginLeft() + rangeStyle.getFamilyPaddingLeft();
                for (int j = 0; j < index; j++) {
                    left += rangeStyle.mSpanCols[j] + rangeStyle.mHGap;
                }
            } else {
                left = helper.getPaddingLeft() + rangeStyle.getFamilyMarginLeft() + rangeStyle.getFamilyPaddingLeft() + rangeStyle.mSizePerSpan * index + index * rangeStyle.mHGap;
            }
            right = left + orientationHelper.getDecoratedMeasurementInOther(view);
        } else {
            if (weighted) {
                top = helper.getPaddingTop() + rangeStyle.getFamilyMarginTop() + rangeStyle.getFamilyPaddingTop();
                for (int j = 0; j < index; j++) {
                    top += rangeStyle.mSpanCols[j] + rangeStyle.mVGap;
                }
            } else {
                top = helper.getPaddingTop() + rangeStyle.getFamilyMarginTop() + rangeStyle.getFamilyPaddingTop() + rangeStyle.mSizePerSpan * index + index * rangeStyle.mVGap;
            }
            bottom = top + orientationHelper.getDecoratedMeasurementInOther(view);
        }
        if (DEBUG) {
            Log.d(TAG, "layout item in position: " + params.getViewPosition() + " with text with SpanIndex: " + index + " into (" + left + ", " + top + ", " + right + ", " + bottom + "), topInfo=[layoutState.getOffset()=" + layoutState.getOffset() + " startSpace=" + startSpace + " secondStartSpace=" + secondStartSpace + " consumedGap=" + consumedGap + " lastUnconsumedSpace=" + lastUnconsumedSpace + "]");
        }
        // We calculate everything with View's bounding box (which includes decor and margins)
        // To calculate correct layout position, we subtract margins.
        rangeStyle.layoutChild(view, left, top, right, bottom, helper, false);
        // Consume the available space if the view is not removed OR changed
        if (params.isItemRemoved() || params.isItemChanged()) {
            result.mIgnoreConsumed = true;
        }
        result.mFocusable |= view.isFocusable();
    }
    mLayoutWithAnchor = false;
    Arrays.fill(rangeStyle.mSet, null);
    Arrays.fill(rangeStyle.mSpanIndices, 0);
    Arrays.fill(rangeStyle.mSpanCols, 0);
}

Example 70 with END

use of android.support.v7.widget.helper.ItemTouchHelper.END in project vlayout by alibaba.

the class SingleLayoutHelper method layoutViews.

@Override
public void layoutViews(RecyclerView.Recycler recycler, RecyclerView.State state, VirtualLayoutManager.LayoutStateWrapper layoutState, LayoutChunkResult result, LayoutManagerHelper helper) {
    // reach the end of this layout
    if (isOutOfRange(layoutState.getCurrentPosition())) {
        return;
    }
    View view = layoutState.next(recycler);
    if (view == null) {
        result.mFinished = true;
        return;
    }
    helper.addChildView(layoutState, view);
    final VirtualLayoutManager.LayoutParams params = (VirtualLayoutManager.LayoutParams) view.getLayoutParams();
    final boolean layoutInVertical = helper.getOrientation() == VERTICAL;
    int parentWidth = helper.getContentWidth() - helper.getPaddingLeft() - helper.getPaddingRight() - getHorizontalMargin() - getHorizontalPadding();
    int parentHeight = helper.getContentHeight() - helper.getPaddingTop() - helper.getPaddingBottom() - getVerticalMargin() - getVerticalPadding();
    if (!Float.isNaN(mAspectRatio)) {
        if (layoutInVertical) {
            parentHeight = (int) (parentWidth / mAspectRatio + 0.5f);
        } else {
            parentWidth = (int) (parentHeight * mAspectRatio + 0.5f);
        }
    }
    if (layoutInVertical) {
        final int widthSpec = helper.getChildMeasureSpec(parentWidth, Float.isNaN(mAspectRatio) ? params.width : parentWidth, !layoutInVertical && Float.isNaN(mAspectRatio));
        final int heightSpec = helper.getChildMeasureSpec(parentHeight, Float.isNaN(params.mAspectRatio) ? (Float.isNaN(mAspectRatio) ? params.height : parentHeight) : (int) (parentWidth / params.mAspectRatio + 0.5f), layoutInVertical && Float.isNaN(mAspectRatio));
        // do measurement
        helper.measureChildWithMargins(view, widthSpec, heightSpec);
    } else {
        final int widthSpec = helper.getChildMeasureSpec(parentWidth, Float.isNaN(params.mAspectRatio) ? (Float.isNaN(mAspectRatio) ? params.width : parentWidth) : (int) (parentHeight * params.mAspectRatio + 0.5f), !layoutInVertical && Float.isNaN(mAspectRatio));
        final int heightSpec = helper.getChildMeasureSpec(parentHeight, Float.isNaN(mAspectRatio) ? params.height : parentHeight, layoutInVertical && Float.isNaN(mAspectRatio));
        // do measurement
        helper.measureChildWithMargins(view, widthSpec, heightSpec);
    }
    OrientationHelperEx orientationHelper = helper.getMainOrientationHelper();
    result.mConsumed = orientationHelper.getDecoratedMeasurement(view);
    // do layout
    int left, top, right, bottom;
    if (layoutInVertical) {
        int viewWidth = orientationHelper.getDecoratedMeasurementInOther(view);
        int available = parentWidth - viewWidth;
        if (available < 0) {
            available = 0;
        }
        left = mMarginLeft + mPaddingLeft + helper.getPaddingLeft() + available / 2;
        right = helper.getContentWidth() - mMarginRight - mPaddingRight - helper.getPaddingRight() - available / 2;
        if (layoutState.getLayoutDirection() == VirtualLayoutManager.LayoutStateWrapper.LAYOUT_START) {
            bottom = layoutState.getOffset() - mMarginBottom - mPaddingBottom;
            top = bottom - result.mConsumed;
        } else {
            top = layoutState.getOffset() + mMarginTop + mPaddingTop;
            bottom = top + result.mConsumed;
        }
    } else {
        int viewHeight = orientationHelper.getDecoratedMeasurementInOther(view);
        int available = parentHeight - viewHeight;
        if (available < 0) {
            available = 0;
        }
        top = helper.getPaddingTop() + mMarginTop + mPaddingTop + available / 2;
        bottom = helper.getContentHeight() - -mMarginBottom - mPaddingBottom - helper.getPaddingBottom() - available / 2;
        if (layoutState.getLayoutDirection() == VirtualLayoutManager.LayoutStateWrapper.LAYOUT_START) {
            right = layoutState.getOffset() - mMarginRight - mPaddingRight;
            left = right - result.mConsumed;
        } else {
            left = layoutState.getOffset() + mMarginLeft + mPaddingLeft;
            right = left + result.mConsumed;
        }
    }
    if (layoutInVertical) {
        result.mConsumed += getVerticalMargin() + getVerticalPadding();
    } else {
        result.mConsumed += getHorizontalMargin() + getHorizontalPadding();
    }
    layoutChildWithMargin(view, left, top, right, bottom, helper);
}