Example usage for android.view View getTop

List of usage examples for android.view View getTop

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Introduction

In this page you can find the example usage for android.view View getTop.

Prototype

@ViewDebug.CapturedViewProperty
public final int getTop()

Source Link

Document

Top position of this view relative to its parent.

Usage

From source file:cn.ieclipse.af.view.StaggeredGridView.java

/**
 * Measure and layout all currently visible children.
 *
 * @param queryAdapter true to requery the adapter for view data
 *///from   w ww  . j  a  va 2s.  com
final void layoutChildren(boolean queryAdapter) {
    final int paddingLeft = getPaddingLeft();
    final int paddingRight = getPaddingRight();
    final int itemMargin = mItemMargin;
    final int colWidth = (getWidth() - paddingLeft - paddingRight - itemMargin * (mColCount - 1)) / mColCount;
    int rebuildLayoutRecordsBefore = -1;
    int rebuildLayoutRecordsAfter = -1;

    Arrays.fill(mItemBottoms, Integer.MIN_VALUE);

    final int childCount = getChildCount();
    for (int i = 0; i < childCount; i++) {
        View child = getChildAt(i);
        LayoutParams lp = (LayoutParams) child.getLayoutParams();
        final int col = lp.column;
        final int position = mFirstPosition + i;
        final boolean needsLayout = queryAdapter || child.isLayoutRequested();

        if (queryAdapter) {
            View newView = obtainView(position, child);
            if (newView != child) {
                removeViewAt(i);
                addView(newView, i);
                child = newView;
            }
            lp = (LayoutParams) child.getLayoutParams(); // Might have changed
        }

        final int span = Math.min(mColCount, lp.span);
        final int widthSize = colWidth * span + itemMargin * (span - 1);

        if (needsLayout) {
            final int widthSpec = MeasureSpec.makeMeasureSpec(widthSize, MeasureSpec.EXACTLY);

            final int heightSpec;
            if (lp.height == LayoutParams.WRAP_CONTENT) {
                heightSpec = MeasureSpec.makeMeasureSpec(0, MeasureSpec.UNSPECIFIED);
            } else {
                heightSpec = MeasureSpec.makeMeasureSpec(lp.height, MeasureSpec.EXACTLY);
            }

            child.measure(widthSpec, heightSpec);
        }

        int childTop = mItemBottoms[col] > Integer.MIN_VALUE ? mItemBottoms[col] + mItemMargin : child.getTop();
        if (span > 1) {
            int lowest = childTop;
            for (int j = col + 1; j < col + span; j++) {
                final int bottom = mItemBottoms[j] + mItemMargin;
                if (bottom > lowest) {
                    lowest = bottom;
                }
            }
            childTop = lowest;
        }
        final int childHeight = child.getMeasuredHeight();
        final int childBottom = childTop + childHeight;
        final int childLeft = paddingLeft + col * (colWidth + itemMargin);
        final int childRight = childLeft + child.getMeasuredWidth();
        child.layout(childLeft, childTop, childRight, childBottom);

        for (int j = col; j < col + span; j++) {
            mItemBottoms[j] = childBottom;
        }

        final LayoutRecord rec = mLayoutRecords.get(position);
        if (rec != null && rec.height != childHeight) {
            // Invalidate our layout records for everything before this.
            rec.height = childHeight;
            rebuildLayoutRecordsBefore = position;
        }

        if (rec != null && rec.span != span) {
            // Invalidate our layout records for everything after this.
            rec.span = span;
            rebuildLayoutRecordsAfter = position;
        }
    }

    // Update mItemBottoms for any empty columns
    for (int i = 0; i < mColCount; i++) {
        if (mItemBottoms[i] == Integer.MIN_VALUE) {
            mItemBottoms[i] = mItemTops[i];
        }
    }

    if (rebuildLayoutRecordsBefore >= 0 || rebuildLayoutRecordsAfter >= 0) {
        if (rebuildLayoutRecordsBefore >= 0) {
            invalidateLayoutRecordsBeforePosition(rebuildLayoutRecordsBefore);
        }
        if (rebuildLayoutRecordsAfter >= 0) {
            invalidateLayoutRecordsAfterPosition(rebuildLayoutRecordsAfter);
        }
        for (int i = 0; i < childCount; i++) {
            final int position = mFirstPosition + i;
            final View child = getChildAt(i);
            final LayoutParams lp = (LayoutParams) child.getLayoutParams();
            LayoutRecord rec = mLayoutRecords.get(position);
            if (rec == null) {
                rec = new LayoutRecord();
                mLayoutRecords.put(position, rec);
            }
            rec.column = lp.column;
            rec.height = child.getHeight();
            rec.id = lp.id;
            rec.span = Math.min(mColCount, lp.span);
        }
    }
}

From source file:com.bennyv5.smoothviewpager.SmoothViewPager.java

/**
 * Tests scrollability within child views of v given a delta of dx.
 *
 * @param v View to test for horizontal scrollability
 * @param checkV Whether the view v passed should itself be checked for scrollability (true),
 *               or just its children (false).
 * @param dx Delta scrolled in pixels//from   www.j a  va  2 s .  com
 * @param x X coordinate of the active touch point
 * @param y Y coordinate of the active touch point
 * @return true if child views of v can be scrolled by delta of dx.
 */
protected boolean canScroll(View v, boolean checkV, int dx, int x, int y) {
    if (v instanceof ViewGroup) {
        final ViewGroup group = (ViewGroup) v;
        final int scrollX = v.getScrollX();
        final int scrollY = v.getScrollY();
        final int count = group.getChildCount();
        // Count backwards - let topmost views consume scroll distance first.
        for (int i = count - 1; i >= 0; i--) {
            // This will not work for transformed views in Honeycomb+
            final View child = group.getChildAt(i);
            if (x + scrollX >= child.getLeft() && x + scrollX < child.getRight()
                    && y + scrollY >= child.getTop() && y + scrollY < child.getBottom() && canScroll(child,
                            true, dx, x + scrollX - child.getLeft(), y + scrollY - child.getTop())) {
                return true;
            }
        }
    }

    return checkV && ViewCompat.canScrollHorizontally(v, -dx);
}

From source file:com.android.backups.StaggeredGridViewByJaumo.java

/**
 * Important: this method will leave offscreen views attached if they are
 * required to maintain the invariant that child view with index i is always
 * the view corresponding to position mFirstPosition + i.
 *//* www.  java 2  s . com*/
private void recycleOffscreenViews() {
    final int height = getHeight();
    final int clearAbove = -mItemMargin;
    final int clearBelow = height + mItemMargin;

    for (int i = getChildCount() - 1; i >= 0; i--) {
        final View child = getChildAt(i);
        if (child.getTop() <= clearBelow) {
            // There may be other offscreen views, but we need to maintain
            // the invariant documented above.
            break;
        }

        if (mInLayout) {
            removeViewsInLayout(i, 1);
        } else {
            removeViewAt(i);
        }

        mRecycler.addScrap(child);
    }

    while (getChildCount() > 0) {
        final View child = getChildAt(0);
        if (child.getBottom() >= clearAbove) {
            // There may be other offscreen views, but we need to maintain
            // the invariant documented above.
            break;
        }

        if (mInLayout) {
            removeViewsInLayout(0, 1);
        } else {
            removeViewAt(0);
        }

        mRecycler.addScrap(child);
        mFirstPosition++;
    }

    final int childCount = getChildCount();
    if (childCount > 0) {
        // Repair the top and bottom column boundaries from the views we
        // still have
        Arrays.fill(mItemTops, Integer.MAX_VALUE);
        Arrays.fill(mItemBottoms, Integer.MIN_VALUE);

        for (int i = 0; i < childCount; i++) {
            final View child = getChildAt(i);
            final LayoutParams lp = (LayoutParams) child.getLayoutParams();
            final int top = child.getTop() - getItemMargin(lp.position);
            final int bottom = child.getBottom();

            final int colEnd = Math.min(mColCount, lp.column + lp.span);
            for (int col = lp.column; col < colEnd; col++) {
                final int colTop = top;
                final int colBottom = bottom;
                if (colTop < mItemTops[col]) {
                    mItemTops[col] = colTop;
                }
                if (colBottom > mItemBottoms[col]) {
                    mItemBottoms[col] = colBottom;
                }
            }
        }

        for (int col = 0; col < mColCount; col++) {
            if (mItemTops[col] == Integer.MAX_VALUE) {
                // If one was untouched, both were.
                mItemTops[col] = 0;
                mItemBottoms[col] = 0;
            }
        }
    }
}

From source file:VerticalViewPager.java

private Rect getChildRectInPagerCoordinates(Rect outRect, View child) {
    if (outRect == null) {
        outRect = new Rect();
    }//from   ww  w  .j  a  v a 2  s .c o  m
    if (child == null) {
        outRect.set(0, 0, 0, 0);
        return outRect;
    }
    outRect.left = child.getLeft();
    outRect.right = child.getRight();
    outRect.top = child.getTop();
    outRect.bottom = child.getBottom();

    ViewParent parent = child.getParent();
    while (parent instanceof ViewGroup && parent != this) {
        final ViewGroup group = (ViewGroup) parent;
        outRect.left += group.getLeft();
        outRect.right += group.getRight();
        outRect.top += group.getTop();
        outRect.bottom += group.getBottom();

        parent = group.getParent();
    }
    return outRect;
}

From source file:com.dishes.views.stageredggridview.StaggeredGridView.java

/**
 * Important: this method will leave offscreen views attached if they are
 * required to maintain the invariant that child view with index i is always
 * the view corresponding to position mFirstPosition + i.
 *//*from   w ww . j  a  va2  s.c  o  m*/
private void recycleOffscreenViews() {
    final int height = getHeight();
    final int clearAbove = -mItemTopMargin;
    final int clearBelow = height + mItemBottomMargin;
    for (int i = getChildCount() - 1; i >= 0; i--) {
        final View child = getChildAt(i);
        if (child.getTop() <= clearBelow) {
            // There may be other offscreen views, but we need to maintain
            // the invariant documented above.
            break;
        }

        if (mInLayout) {
            removeViewsInLayout(i, 1);
        } else {
            removeViewAt(i);
        }

        mRecycler.addScrap(child);
    }

    while (getChildCount() > 0) {
        final View child = getChildAt(0);
        if (child.getBottom() >= clearAbove) {
            // There may be other offscreen views, but we need to maintain
            // the invariant documented above.
            break;
        }

        if (mInLayout) {
            removeViewsInLayout(0, 1);
        } else {
            removeViewAt(0);
        }

        mRecycler.addScrap(child);
        mFirstPosition++;
    }

    final int childCount = getChildCount();
    if (childCount > 0) {
        // Repair the top and bottom column boundaries from the views we
        // still have
        Arrays.fill(mItemTops, Integer.MAX_VALUE);
        Arrays.fill(mItemBottoms, Integer.MIN_VALUE);

        for (int i = 0; i < childCount; i++) {
            final View child = getChildAt(i);
            final LayoutParams lp = (LayoutParams) child.getLayoutParams();
            final int top = child.getTop() - mItemTopMargin;
            final int bottom = child.getBottom();
            final LayoutRecord rec = mLayoutRecords.get(mFirstPosition + i);

            final int colEnd = lp.column + Math.min(mColCount, lp.span);
            for (int col = lp.column; col < colEnd; col++) {
                final int colTop = top - rec.getMarginAbove(col - lp.column);
                final int colBottom = bottom + rec.getMarginBelow(col - lp.column);
                if (colTop < mItemTops[col]) {
                    mItemTops[col] = colTop;
                }
                if (colBottom > mItemBottoms[col]) {
                    mItemBottoms[col] = colBottom;
                }
            }
        }

        for (int col = 0; col < mColCount; col++) {
            if (mItemTops[col] == Integer.MAX_VALUE) {
                // If one was untouched, both were.
                mItemTops[col] = 0;
                mItemBottoms[col] = 0;
            }
        }
    }
}

From source file:caesar.feng.framework.widget.StaggeredGrid.ExtendableListView.java

/**
 * Remember enough information to restore the screen state when the data has
 * changed.//from w ww  .  j  av  a 2s .  com
 */
void rememberSyncState() {
    if (getChildCount() > 0) {
        mNeedSync = true;
        mSyncHeight = getHeight();
        // Sync the based on the offset of the first view
        View v = getChildAt(0);
        ListAdapter adapter = getAdapter();
        if (mFirstPosition >= 0 && mFirstPosition < adapter.getCount()) {
            mSyncRowId = adapter.getItemId(mFirstPosition);
        } else {
            mSyncRowId = NO_ID;
        }
        if (v != null) {
            mSpecificTop = v.getTop();
        }
        mSyncPosition = mFirstPosition;
    }
}

From source file:com.baiiu.autoloopviewpager.loopvp.LoopViewPager.java

/**
 * Tests scrollability within child views of v given a delta of dx.
 *
 * @param v View to test for horizontal scrollability
 * @param checkV Whether the view v passed should itself be checked for
 * scrollability (true), or just its children (false).
 * @param dx Delta scrolled in pixels/* ww w .jav a  2 s  .  c  o m*/
 * @param x X coordinate of the active touch point
 * @param y Y coordinate of the active touch point
 * @return true if child views of v can be scrolled by delta of dx.
 */
protected boolean canScroll(View v, boolean checkV, int dx, int x, int y) {
    if (!canScroll)
        return true;

    if (v instanceof ViewGroup) {
        final ViewGroup group = (ViewGroup) v;
        final int scrollX = v.getScrollX();
        final int scrollY = v.getScrollY();
        final int count = group.getChildCount();
        // Count backwards - let topmost views consume scroll distance
        // first.
        for (int i = count - 1; i >= 0; i--) {
            // TODO: Add versioned support here for transformed views.
            // This will not work for transformed views in Honeycomb+
            final View child = group.getChildAt(i);
            if (x + scrollX >= child.getLeft() && x + scrollX < child.getRight()
                    && y + scrollY >= child.getTop() && y + scrollY < child.getBottom() && canScroll(child,
                            true, dx, x + scrollX - child.getLeft(), y + scrollY - child.getTop())) {
                return true;
            }
        }
    }

    return checkV && ViewCompat.canScrollHorizontally(v, -dx);
}

From source file:au.com.glassechidna.velocityviewpager.VelocityViewPager.java

/**
 * Tests scrollability within child views of v given a delta of dx.
 *
 * @param v View to test for horizontal scrollability
 * @param checkV Whether the view v passed should itself be checked for scrollability (true),
 *               or just its children (false).
 * @param dx Delta scrolled in pixels//  w  ww  . j av a2  s. co  m
 * @param x X coordinate of the active touch point
 * @param y Y coordinate of the active touch point
 * @return true if child views of v can be scrolled by delta of dx.
 */
protected boolean canScroll(View v, boolean checkV, int dx, int x, int y) {
    if (v instanceof ViewGroup) {
        final ViewGroup group = (ViewGroup) v;
        final int scrollX = v.getScrollX();
        final int scrollY = v.getScrollY();
        final int count = group.getChildCount();
        // Count backwards - let topmost views consume scroll distance first.
        for (int i = count - 1; i >= 0; i--) {
            // TODO: Add versioned support here for transformed views.
            // This will not work for transformed views in Honeycomb+
            final View child = group.getChildAt(i);
            if (x + scrollX >= child.getLeft() && x + scrollX < child.getRight()
                    && y + scrollY >= child.getTop() && y + scrollY < child.getBottom() && canScroll(child,
                            true, dx, x + scrollX - child.getLeft(), y + scrollY - child.getTop())) {
                return true;
            }
        }
    }

    return checkV && ViewCompat.canScrollHorizontally(v, -dx);
}

From source file:com.benny.openlauncher.widget.SmoothViewPager.java

/**
 * Tests scrollability within child views of v given a delta of dx.
 *
 * @param v      View to test for horizontal scrollability
 * @param checkV Whether the view v passed should itself be checked for scrollability (true),
 *               or just its children (false).
 * @param dx     Delta scrolled in pixels
 * @param x      X coordinate of the active touch point
 * @param y      Y coordinate of the active touch point
 * @return true if child views of v can be scrolled by delta of dx.
 *///w  ww  . ja v a 2  s.co m
protected boolean canScroll(View v, boolean checkV, int dx, int x, int y) {
    if (v instanceof ViewGroup) {
        final ViewGroup group = (ViewGroup) v;
        final int scrollX = v.getScrollX();
        final int scrollY = v.getScrollY();
        final int count = group.getChildCount();
        // Count backwards - let topmost views consume scroll distance first.
        for (int i = count - 1; i >= 0; i--) {
            // This will not work for transformed views in Honeycomb+
            final View child = group.getChildAt(i);

            //Custom check for launcher

            //end

            if (x + scrollX >= child.getLeft() && x + scrollX < child.getRight()
                    && y + scrollY >= child.getTop() && y + scrollY < child.getBottom() && canScroll(child,
                            true, dx, x + scrollX - child.getLeft(), y + scrollY - child.getTop())) {
                return true;
            }
        }
    }

    return checkV && ViewCompat.canScrollHorizontally(v, -dx);
}

From source file:cm.aptoide.pt.MainActivity.java

@Override
public boolean onKeyDown(int keyCode, KeyEvent event) {
    if (keyCode == KeyEvent.KEYCODE_BACK) {
        View v = availableListView.getChildAt(0);
        scrollMemory.put(depth, new ListViewPosition((v == null) ? 0 : v.getTop(),
                availableListView.getFirstVisiblePosition()));

        if (!ApplicationAptoide.MULTIPLESTORES) {
            if (!depth.equals(ListDepth.CATEGORY1) && pager.getCurrentItem() == 1) {
                if (depth.equals(ListDepth.TOPAPPS) || depth.equals(ListDepth.LATEST_LIKES)
                        || depth.equals(ListDepth.LATESTAPPS) || depth.equals(ListDepth.LATEST_COMMENTS)
                        || depth.equals(ListDepth.RECOMMENDED) || depth.equals(ListDepth.ALLAPPLICATIONS)) {
                    depth = ListDepth.CATEGORY1;
                } else {
                    depth = ListDepth.values()[depth.ordinal() - 1];
                }/*ww  w . j av  a  2 s  .  c o  m*/
                removeLastBreadCrumb();
                refreshAvailableList(true);
                return false;
            }
        } else {
            if (!depth.equals(ListDepth.STORES) && pager.getCurrentItem() == 1) {
                if (depth.equals(ListDepth.TOPAPPS) || depth.equals(ListDepth.LATEST_LIKES)
                        || depth.equals(ListDepth.LATESTAPPS) || depth.equals(ListDepth.LATEST_COMMENTS)
                        || depth.equals(ListDepth.RECOMMENDED) || depth.equals(ListDepth.ALLAPPLICATIONS)) {
                    depth = ListDepth.CATEGORY1;
                } else {
                    depth = ListDepth.values()[depth.ordinal() - 1];
                }
                removeLastBreadCrumb();
                refreshAvailableList(true);
                return false;
            }

        }
    }

    if (ApplicationAptoide.isRestartLauncher()) {
        ApplicationAptoide.restartLauncher(MainActivity.this);
        ApplicationAptoide.setRestartLauncher(false);

    }

    return super.onKeyDown(keyCode, event);
}