List of usage examples for android.view View isLayoutRequested
public boolean isLayoutRequested()
Indicates whether or not this view's layout will be requested during the next hierarchy layout pass.
From source file:com.facebook.litho.LithoView.java
private static void performLayoutOnChildrenIfNecessary(ComponentHost host) { for (int i = 0, count = host.getChildCount(); i < count; i++) { final View child = host.getChildAt(i); if (child.isLayoutRequested()) { // The hosting view doesn't allow children to change sizes dynamically as // this would conflict with the component's own layout calculations. child.measure(MeasureSpec.makeMeasureSpec(child.getWidth(), MeasureSpec.EXACTLY), MeasureSpec.makeMeasureSpec(child.getHeight(), MeasureSpec.EXACTLY)); child.layout(child.getLeft(), child.getTop(), child.getRight(), child.getBottom()); }// w w w.j a v a2s .co m if (child instanceof ComponentHost) { performLayoutOnChildrenIfNecessary((ComponentHost) child); } } }
From source file:android.widget.PinnedHeaderListView.java
private void ensurePinnedHeaderLayout(final int viewIndex) { final View view = mHeaders[viewIndex].view; if (view.isLayoutRequested()) { final ViewGroup.LayoutParams layoutParams = view.getLayoutParams(); int widthSpec; int heightSpec; if (layoutParams != null && layoutParams.width > 0) widthSpec = View.MeasureSpec.makeMeasureSpec(layoutParams.width, View.MeasureSpec.EXACTLY); else// w w w . j a v a2 s . com widthSpec = View.MeasureSpec.makeMeasureSpec(mHeaderWidth, View.MeasureSpec.EXACTLY); if (layoutParams != null && layoutParams.height > 0) heightSpec = View.MeasureSpec.makeMeasureSpec(layoutParams.height, View.MeasureSpec.EXACTLY); else heightSpec = View.MeasureSpec.makeMeasureSpec(0, View.MeasureSpec.UNSPECIFIED); view.measure(widthSpec, heightSpec); final int height = view.getMeasuredHeight(); mHeaders[viewIndex].height = height; view.layout(0, 0, view.getMeasuredWidth(), height); } }
From source file:com.aizou.core.widget.pagerIndicator.indicator.FixedIndicatorView.java
private void measureScrollBar(boolean needChange) { if (scrollBar == null) return;//from www . j a v a2 s . c o m View view = scrollBar.getSlideView(); if (view.isLayoutRequested() || needChange) { if (mAdapter != null && mAdapter.getCount() > 0 && mSelectedTabIndex >= 0 && mSelectedTabIndex < mAdapter.getCount()) { int widthSpec = MeasureSpec.makeMeasureSpec(getMeasuredWidth(), mWidthMode); int heightSpec; ViewGroup.LayoutParams layoutParams = view.getLayoutParams(); if (layoutParams != null && layoutParams.height > 0) { heightSpec = MeasureSpec.makeMeasureSpec(layoutParams.height, MeasureSpec.EXACTLY); } else { heightSpec = MeasureSpec.makeMeasureSpec(0, MeasureSpec.UNSPECIFIED); } view.measure(widthSpec, heightSpec); View curr = getChildAt(mSelectedTabIndex); view.layout(0, 0, scrollBar.getWidth(curr.getMeasuredWidth()), scrollBar.getHeight(getHeight())); } } }
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 ww w . ja va 2 s . co m*/ 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.irontec.jaigiro.widgets.StaggeredGridView.java
/** * Measure and layout all currently visible children. * /*from w w w .j a v a 2 s .c o m*/ * @param queryAdapter * true to requery the adapter for view data */ 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.tandong.sa.view.StaggeredGridView.java
/** * Measure and layout all currently visible children. * //from ww w . j av a 2 s.c om * @param queryAdapter * true to requery the adapter for view data */ 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:android.support.designox.widget.CoordinatorLayout.java
/** * Get the position rect for the given child. If the child has currently requested layout * or has a visibility of GONE./*from ww w .j av a 2 s. c om*/ * * @param child child view to check * @param transform true to include transformation in the output rect, false to * only account for the base position * @param out rect to set to the output values */ void getChildRect(View child, boolean transform, Rect out) { if (child.isLayoutRequested() || child.getVisibility() == View.GONE) { out.set(0, 0, 0, 0); return; } if (transform) { getDescendantRect(child, out); } else { out.set(child.getLeft(), child.getTop(), child.getRight(), child.getBottom()); } }
From source file:com.appunite.list.GridView.java
/** * Add a view as a child and make sure it is measured (if necessary) and * positioned properly.// w ww.java 2 s . co m * * @param child The view to add * @param position The position of the view * @param y The y position relative to which this view will be positioned * @param flow if true, align top edge to y. If false, align bottom edge * to y. * @param childrenLeft Left edge where children should be positioned * @param selected Is this position selected? * @param recycled Has this view been pulled from the recycle bin? If so it * does not need to be remeasured. * @param where Where to add the item in the list * */ private void setupChild(View child, int position, int y, boolean flow, int childrenLeft, boolean selected, boolean recycled, int where) { boolean isSelected = selected && shouldShowSelector(); final boolean updateChildSelected = isSelected != child.isSelected(); final int mode = mTouchMode; final boolean isPressed = mode > TOUCH_MODE_DOWN && mode < TOUCH_MODE_SCROLL && mMotionPosition == position; final boolean updateChildPressed = isPressed != child.isPressed(); boolean needToMeasure = !recycled || updateChildSelected || child.isLayoutRequested(); // Respect layout params that are already in the view. Otherwise make // some up... LayoutParams p = (LayoutParams) child.getLayoutParams(); if (p == null) { p = (LayoutParams) generateDefaultLayoutParams(); } p.viewType = mAdapter.getItemViewType(position); if (recycled && !p.forceAdd) { attachViewToParent(child, where, p); } else { p.forceAdd = false; addViewInLayout(child, where, p, true); } if (updateChildSelected) { child.setSelected(isSelected); if (isSelected) { requestFocus(); } } if (updateChildPressed) { child.setPressed(isPressed); } if (mChoiceMode != CHOICE_MODE_NONE && mCheckStates != null) { if (child instanceof Checkable) { ((Checkable) child).setChecked(mCheckStates.get(position)); } else if (getContext() .getApplicationInfo().targetSdkVersion >= android.os.Build.VERSION_CODES.HONEYCOMB) { Compat.setActivated(child, mCheckStates.get(position)); } } if (needToMeasure) { int childHeightSpec = ViewGroup .getChildMeasureSpec(MeasureSpec.makeMeasureSpec(0, MeasureSpec.UNSPECIFIED), 0, p.height); int childWidthSpec = ViewGroup.getChildMeasureSpec( MeasureSpec.makeMeasureSpec(mColumnWidth, MeasureSpec.EXACTLY), 0, p.width); child.measure(childWidthSpec, childHeightSpec); } else { cleanupLayoutState(child); } final int w = child.getMeasuredWidth(); final int h = child.getMeasuredHeight(); int childLeft; final int childTop = flow ? y : y - h; final int layoutDirection = ViewCompat.getLayoutDirection(this); final int absoluteGravity = GravityCompat.getAbsoluteGravity(mGravity, layoutDirection); switch (absoluteGravity & Gravity.HORIZONTAL_GRAVITY_MASK) { case Gravity.LEFT: childLeft = childrenLeft; break; case Gravity.CENTER_HORIZONTAL: childLeft = childrenLeft + ((mColumnWidth - w) / 2); break; case Gravity.RIGHT: childLeft = childrenLeft + mColumnWidth - w; break; default: childLeft = childrenLeft; break; } if (needToMeasure) { final int childRight = childLeft + w; final int childBottom = childTop + h; child.layout(childLeft, childTop, childRight, childBottom); } else { child.offsetLeftAndRight(childLeft - child.getLeft()); child.offsetTopAndBottom(childTop - child.getTop()); } if (mCachingStarted) { child.setDrawingCacheEnabled(true); } if (recycled && (((LayoutParams) child.getLayoutParams()).scrappedFromPosition) != position) { Compat.jumpDrawablesToCurrentState(child); } }
From source file:com.example.uidemo.widget.waterfall.StaggeredGridView.java
/** * Measure and layout all currently visible children. * * @param queryAdapter true to requery the adapter for view data */// w ww . j a v a2s . co m 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; mColWidth = colWidth; int rebuildLayoutRecordsBefore = -1; int rebuildLayoutRecordsAfter = -1; Arrays.fill(mItemBottoms, Integer.MIN_VALUE); final int childCount = getChildCount(); int amountRemoved = 0; 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 == null) { // child has been removed removeViewAt(i); if (i - 1 >= 0) invalidateLayoutRecordsAfterPosition(i - 1); amountRemoved++; continue; } else 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 - amountRemoved); 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); } } if (this.mSelectorPosition != INVALID_POSITION) { View child = getChildAt(mMotionPosition - mFirstPosition); if (child != null) positionSelector(mMotionPosition, child); } else if (mTouchMode > TOUCH_MODE_DOWN) { View child = getChildAt(mMotionPosition - mFirstPosition); if (child != null) positionSelector(mMotionPosition, child); } else { mSelectorRect.setEmpty(); } }
From source file:cn.iterlog.myapplication.widget.overscroll.StaggeredGridView.java
/** * Measure and layout all currently visible children. * * @param queryAdapter true to requery the adapter for view data *///from ww w . j ava 2 s.co m 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; mColWidth = colWidth; int rebuildLayoutRecordsBefore = -1; int rebuildLayoutRecordsAfter = -1; Arrays.fill(mItemBottoms, Integer.MIN_VALUE); final int childCount = getChildCount(); int amountRemoved = 0; 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 == null) { // child has been removed removeViewAt(i); if (i - 1 >= 0) invalidateLayoutRecordsAfterPosition(i - 1); amountRemoved++; continue; } else 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 - amountRemoved); 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); } } if (this.mSelectorPosition != INVALID_POSITION) { View child = getChildAt(mMotionPosition - mFirstPosition); if (child != null) positionSelector(mMotionPosition, child); } else if (mTouchMode > TOUCH_MODE_DOWN) { View child = getChildAt(mMotionPosition - mFirstPosition); if (child != null) positionSelector(mMotionPosition, child); } else { mSelectorRect.setEmpty(); } }