List of usage examples for android.view Gravity HORIZONTAL_GRAVITY_MASK
int HORIZONTAL_GRAVITY_MASK
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From source file:com.brantapps.viewpagerindicator.vertical.VerticalViewPager.java
/** * This method will be invoked when the current page is scrolled, either as part * of a programmatically initiated smooth scroll or a user initiated touch scroll. * If you override this method you must call through to the superclass implementation * (e.g. super.onPageScrolled(position, offset, offsetPixels)) before onPageScrolled * returns.//from w w w. j av a 2s . co m * * @param position Position index of the first page currently being displayed. * Page position+1 will be visible if positionOffset is nonzero. * @param offset Value from [0, 1) indicating the offset from the page at position. * @param offsetPixels Value in pixels indicating the offset from position. */ protected void onPageScrolled(int position, float offset, int offsetPixels) { // Offset any decor views if needed - keep them on-screen at all times. if (mDecorChildCount > 0) { // BrantApps Change: Renamed scrollx to scrolly, paddingLeft to paddingTop, paddingRight to paddingBottom & width to height // BrantApps Change: Also changed method calls to get the four values final int scrollY = getScrollY(); int paddingTop = getPaddingTop(); int paddingBottom = getPaddingBottom(); final int height = getHeight(); final int childCount = getChildCount(); for (int i = 0; i < childCount; i++) { final View child = getChildAt(i); final LayoutParams lp = (LayoutParams) child.getLayoutParams(); if (!lp.isDecor) continue; final int hgrav = lp.gravity & Gravity.HORIZONTAL_GRAVITY_MASK; // BrantApps Change: Renamed childLeft to childTop int childTop = 0; // BrantApps Change: In switch statement changed 3 calls to getMeasuredWidth() to getMeasuredHeight() switch (hgrav) { default: childTop = paddingTop; break; case Gravity.LEFT: childTop = paddingTop; // BrantApps Change: Was paddingLeft += child.getWidth(); paddingTop += child.getHeight(); break; case Gravity.CENTER_HORIZONTAL: childTop = Math.max((height - child.getMeasuredHeight()) / 2, paddingTop); break; case Gravity.RIGHT: childTop = height - paddingBottom - child.getMeasuredHeight(); paddingBottom += child.getMeasuredHeight(); break; } childTop += scrollY; // BrantApps Change: Was final int childOffset = childLeft - child.getLeft(); final int childOffset = childTop - child.getTop(); if (childOffset != 0) { child.offsetTopAndBottom(childOffset); } } } if (mOnPageChangeListener != null) { mOnPageChangeListener.onPageScrolled(position, offset, offsetPixels); } if (mInternalPageChangeListener != null) { mInternalPageChangeListener.onPageScrolled(position, offset, offsetPixels); } mCalledSuper = true; }
From source file:com.gather.android.widget.MyViewPager.java
@Override protected void onLayout(boolean changed, int l, int t, int r, int b) { final int count = getChildCount(); int width = r - l; int height = b - t; int paddingLeft = getPaddingLeft(); int paddingTop = getPaddingTop(); int paddingRight = getPaddingRight(); int paddingBottom = getPaddingBottom(); final int scrollX = getScrollX(); int decorCount = 0; // First pass - decor views. We need to do this in two passes so that // we have the proper offsets for non-decor views later. for (int i = 0; i < count; i++) { final View child = getChildAt(i); if (child.getVisibility() != GONE) { final LayoutParams lp = (LayoutParams) child.getLayoutParams(); int childLeft = 0; int childTop = 0; if (lp.isDecor) { final int hgrav = lp.gravity & Gravity.HORIZONTAL_GRAVITY_MASK; final int vgrav = lp.gravity & Gravity.VERTICAL_GRAVITY_MASK; switch (hgrav) { default: childLeft = paddingLeft; break; case Gravity.LEFT: childLeft = paddingLeft; paddingLeft += child.getMeasuredWidth(); break; case Gravity.CENTER_HORIZONTAL: childLeft = Math.max((width - child.getMeasuredWidth()) / 2, paddingLeft); break; case Gravity.RIGHT: childLeft = width - paddingRight - child.getMeasuredWidth(); paddingRight += child.getMeasuredWidth(); break; }/*from w w w . j a va2 s . c o m*/ switch (vgrav) { default: childTop = paddingTop; break; case Gravity.TOP: childTop = paddingTop; paddingTop += child.getMeasuredHeight(); break; case Gravity.CENTER_VERTICAL: childTop = Math.max((height - child.getMeasuredHeight()) / 2, paddingTop); break; case Gravity.BOTTOM: childTop = height - paddingBottom - child.getMeasuredHeight(); paddingBottom += child.getMeasuredHeight(); break; } childLeft += scrollX; child.layout(childLeft, childTop, childLeft + child.getMeasuredWidth(), childTop + child.getMeasuredHeight()); decorCount++; } } } final int childWidth = width - paddingLeft - paddingRight; // Page views. Do this once we have the right padding offsets from // above. for (int i = 0; i < count; i++) { final View child = getChildAt(i); if (child.getVisibility() != GONE) { final LayoutParams lp = (LayoutParams) child.getLayoutParams(); ItemInfo ii; if (!lp.isDecor && (ii = infoForChild(child)) != null) { int loff = (int) (childWidth * ii.offset); int childLeft = paddingLeft + loff; int childTop = paddingTop; if (lp.needsMeasure) { // This was added during layout and needs measurement. // Do it now that we know what we're working with. lp.needsMeasure = false; final int widthSpec = MeasureSpec.makeMeasureSpec((int) (childWidth * lp.widthFactor), MeasureSpec.EXACTLY); final int heightSpec = MeasureSpec .makeMeasureSpec((int) (height - paddingTop - paddingBottom), MeasureSpec.EXACTLY); child.measure(widthSpec, heightSpec); } if (DEBUG) Log.v(TAG, "Positioning #" + i + " " + child + " f=" + ii.object + ":" + childLeft + "," + childTop + " " + child.getMeasuredWidth() + "x" + child.getMeasuredHeight()); child.layout(childLeft, childTop, childLeft + child.getMeasuredWidth(), childTop + child.getMeasuredHeight()); } } } mTopPageBounds = paddingTop; mBottomPageBounds = height - paddingBottom; mDecorChildCount = decorCount; // MyLogger.showLogWithLineNum(4, // "?MyViewPager ----> onLayout ___ mFirstLayout=="+mFirstLayout); if (mFirstLayout) { scrollToItem(mCurItem, false, 0, false); } mFirstLayout = false; // MyLogger.showLogWithLineNum(5, // "?MyViewPager ----> onLayout ___ mFirstLayout=="+mFirstLayout); }
From source file:ir.ac.ut.widget.ViewPager.java
@Override protected void onLayout(boolean changed, int l, int t, int r, int b) { final int count = getChildCount(); int width = r - l; int height = b - t; int paddingLeft = getPaddingLeft(); int paddingTop = getPaddingTop(); int paddingRight = getPaddingRight(); int paddingBottom = getPaddingBottom(); final int scrollX = getScrollX(); int decorCount = 0; // First pass - decor views. We need to do this in two passes so that // we have the proper offsets for non-decor views later. for (int i = 0; i < count; i++) { final View child = getChildAt(i); if (child.getVisibility() != GONE) { final LayoutParams lp = (LayoutParams) child.getLayoutParams(); int childLeft = 0; int childTop = 0; if (lp.isDecor) { final int hgrav = lp.gravity & Gravity.HORIZONTAL_GRAVITY_MASK; final int vgrav = lp.gravity & Gravity.VERTICAL_GRAVITY_MASK; switch (hgrav) { default: childLeft = paddingLeft; break; case Gravity.LEFT: childLeft = paddingLeft; paddingLeft += child.getMeasuredWidth(); break; case Gravity.CENTER_HORIZONTAL: childLeft = Math.max((width - child.getMeasuredWidth()) / 2, paddingLeft); break; case Gravity.RIGHT: childLeft = width - paddingRight - child.getMeasuredWidth(); paddingRight += child.getMeasuredWidth(); break; }/*from w w w . j av a2 s . co m*/ switch (vgrav) { default: childTop = paddingTop; break; case Gravity.TOP: childTop = paddingTop; paddingTop += child.getMeasuredHeight(); break; case Gravity.CENTER_VERTICAL: childTop = Math.max((height - child.getMeasuredHeight()) / 2, paddingTop); break; case Gravity.BOTTOM: childTop = height - paddingBottom - child.getMeasuredHeight(); paddingBottom += child.getMeasuredHeight(); break; } childLeft += scrollX; child.layout(childLeft, childTop, childLeft + child.getMeasuredWidth(), childTop + child.getMeasuredHeight()); decorCount++; } } } final int childWidth = width - paddingLeft - paddingRight; // Page views. Do this once we have the right padding offsets from above. for (int i = 0; i < count; i++) { final View child = getChildAt(i); if (child.getVisibility() != GONE) { final LayoutParams lp = (LayoutParams) child.getLayoutParams(); ItemInfo ii; if (!lp.isDecor && (ii = infoForChild(child)) != null) { int loff = (int) (childWidth * ii.offset); int childLeft = paddingLeft + loff; int childTop = paddingTop; if (lp.needsMeasure) { // This was added during layout and needs measurement. // Do it now that we know what we're working with. lp.needsMeasure = false; final int widthSpec = MeasureSpec.makeMeasureSpec((int) (childWidth * lp.widthFactor), MeasureSpec.EXACTLY); final int heightSpec = MeasureSpec .makeMeasureSpec((int) (height - paddingTop - paddingBottom), MeasureSpec.EXACTLY); child.measure(widthSpec, heightSpec); } if (DEBUG) { Log.v(TAG, "Positioning #" + i + " " + child + " f=" + ii.object + ":" + childLeft + "," + childTop + " " + child.getMeasuredWidth() + "x" + child.getMeasuredHeight()); } child.layout(childLeft, childTop, childLeft + child.getMeasuredWidth(), childTop + child.getMeasuredHeight()); } } } mTopPageBounds = paddingTop; mBottomPageBounds = height - paddingBottom; mDecorChildCount = decorCount; if (mFirstLayout) { scrollToItem(mCurItem, false, 0, false); } mFirstLayout = false; }
From source file:com.benny.openlauncher.widget.SmoothViewPager.java
@Override protected void onLayout(boolean changed, int l, int t, int r, int b) { if (isInEditMode()) return;// www .jav a 2 s. c o m final int count = getChildCount(); int width = r - l; int height = b - t; int paddingLeft = getPaddingLeft(); int paddingTop = getPaddingTop(); int paddingRight = getPaddingRight(); int paddingBottom = getPaddingBottom(); final int scrollX = getScrollX(); int decorCount = 0; // First pass - decor views. We need to do this in two passes so that // we have the proper offsets for non-decor views later. for (int i = 0; i < count; i++) { final View child = getChildAt(i); if (child.getVisibility() != GONE) { final LayoutParams lp = (LayoutParams) child.getLayoutParams(); int childLeft = 0; int childTop = 0; if (lp.isDecor) { final int hgrav = lp.gravity & Gravity.HORIZONTAL_GRAVITY_MASK; final int vgrav = lp.gravity & Gravity.VERTICAL_GRAVITY_MASK; switch (hgrav) { default: childLeft = paddingLeft; break; case Gravity.LEFT: childLeft = paddingLeft; paddingLeft += child.getMeasuredWidth(); break; case Gravity.CENTER_HORIZONTAL: childLeft = Math.max((width - child.getMeasuredWidth()) / 2, paddingLeft); break; case Gravity.RIGHT: childLeft = width - paddingRight - child.getMeasuredWidth(); paddingRight += child.getMeasuredWidth(); break; } switch (vgrav) { default: childTop = paddingTop; break; case Gravity.TOP: childTop = paddingTop; paddingTop += child.getMeasuredHeight(); break; case Gravity.CENTER_VERTICAL: childTop = Math.max((height - child.getMeasuredHeight()) / 2, paddingTop); break; case Gravity.BOTTOM: childTop = height - paddingBottom - child.getMeasuredHeight(); paddingBottom += child.getMeasuredHeight(); break; } childLeft += scrollX; child.layout(childLeft, childTop, childLeft + child.getMeasuredWidth(), childTop + child.getMeasuredHeight()); decorCount++; } } } final int childWidth = width - paddingLeft - paddingRight; // Page views. Do this once we have the right padding offsets from above. for (int i = 0; i < count; i++) { final View child = getChildAt(i); if (child.getVisibility() != GONE) { final LayoutParams lp = (LayoutParams) child.getLayoutParams(); ItemInfo ii; if (!lp.isDecor && (ii = infoForChild(child)) != null) { int loff = (int) (childWidth * ii.offset); int childLeft = paddingLeft + loff; int childTop = paddingTop; if (lp.needsMeasure) { // This was added during layout and needs measurement. // Do it now that we know what we're working with. lp.needsMeasure = false; final int widthSpec = MeasureSpec.makeMeasureSpec((int) (childWidth * lp.widthFactor), MeasureSpec.EXACTLY); final int heightSpec = MeasureSpec .makeMeasureSpec((int) (height - paddingTop - paddingBottom), MeasureSpec.EXACTLY); child.measure(widthSpec, heightSpec); } if (DEBUG) Log.v(TAG, "Positioning #" + i + " " + child + " f=" + ii.object + ":" + childLeft + "," + childTop + " " + child.getMeasuredWidth() + "x" + child.getMeasuredHeight()); child.layout(childLeft, childTop, childLeft + child.getMeasuredWidth(), childTop + child.getMeasuredHeight()); } } } mTopPageBounds = paddingTop; mBottomPageBounds = height - paddingBottom; mDecorChildCount = decorCount; if (mFirstLayout) { scrollToItem(mCurItem, false, 0, false); } mFirstLayout = false; }
From source file:android.support.v17.leanback.widget.GridLayoutManager.java
private void layoutChild(int rowIndex, View v, int start, int end, int startSecondary) { if (TRACE)/*w w w . j ava 2 s . c om*/ TraceHelper.beginSection("layoutChild"); int sizeSecondary = mOrientation == HORIZONTAL ? getDecoratedMeasuredHeightWithMargin(v) : getDecoratedMeasuredWidthWithMargin(v); if (mFixedRowSizeSecondary > 0) { sizeSecondary = Math.min(sizeSecondary, mFixedRowSizeSecondary); } final int verticalGravity = mGravity & Gravity.VERTICAL_GRAVITY_MASK; final int horizontalGravity = (mReverseFlowPrimary || mReverseFlowSecondary) ? Gravity.getAbsoluteGravity(mGravity & Gravity.RELATIVE_HORIZONTAL_GRAVITY_MASK, View.LAYOUT_DIRECTION_RTL) : mGravity & Gravity.HORIZONTAL_GRAVITY_MASK; if (mOrientation == HORIZONTAL && verticalGravity == Gravity.TOP || mOrientation == VERTICAL && horizontalGravity == Gravity.LEFT) { // do nothing } else if (mOrientation == HORIZONTAL && verticalGravity == Gravity.BOTTOM || mOrientation == VERTICAL && horizontalGravity == Gravity.RIGHT) { startSecondary += getRowSizeSecondary(rowIndex) - sizeSecondary; } else if (mOrientation == HORIZONTAL && verticalGravity == Gravity.CENTER_VERTICAL || mOrientation == VERTICAL && horizontalGravity == Gravity.CENTER_HORIZONTAL) { startSecondary += (getRowSizeSecondary(rowIndex) - sizeSecondary) / 2; } int left, top, right, bottom; if (mOrientation == HORIZONTAL) { left = start; top = startSecondary; right = end; bottom = startSecondary + sizeSecondary; } else { top = start; left = startSecondary; bottom = end; right = startSecondary + sizeSecondary; } LayoutParams params = (LayoutParams) v.getLayoutParams(); layoutDecoratedWithMargins(v, left, top, right, bottom); // Now super.getDecoratedBoundsWithMargins() includes the extra space for optical bounds, // subtracting it from value passed in layoutDecoratedWithMargins(), we can get the optical // bounds insets. super.getDecoratedBoundsWithMargins(v, sTempRect); params.setOpticalInsets(left - sTempRect.left, top - sTempRect.top, sTempRect.right - right, sTempRect.bottom - bottom); updateChildAlignments(v); if (TRACE) TraceHelper.endSection(); }
From source file:com.tr4android.support.extension.widget.ViewPager.java
@Override protected void onLayout(boolean changed, int l, int t, int r, int b) { final int count = getChildCount(); int width = r - l; int height = b - t; int paddingLeft = getPaddingLeft(); int paddingTop = getPaddingTop(); int paddingRight = getPaddingRight(); int paddingBottom = getPaddingBottom(); final int scrollX = getScrollX(); int decorCount = 0; // First pass - decor views. We need to do this in two passes so that // we have the proper offsets for non-decor views later. for (int i = 0; i < count; i++) { final View child = getChildAt(i); if (child.getVisibility() != GONE) { final LayoutParams lp = (LayoutParams) child.getLayoutParams(); int childLeft = 0; int childTop = 0; if (lp.isDecor) { final int hgrav = lp.gravity & Gravity.HORIZONTAL_GRAVITY_MASK; final int vgrav = lp.gravity & Gravity.VERTICAL_GRAVITY_MASK; switch (hgrav) { default: childLeft = paddingLeft; break; case Gravity.LEFT: childLeft = paddingLeft; paddingLeft += child.getMeasuredWidth(); break; case Gravity.CENTER_HORIZONTAL: childLeft = Math.max((width - child.getMeasuredWidth()) / 2, paddingLeft); break; case Gravity.RIGHT: childLeft = width - paddingRight - child.getMeasuredWidth(); paddingRight += child.getMeasuredWidth(); break; }//from w w w.j a va 2 s . co m switch (vgrav) { default: childTop = paddingTop; break; case Gravity.TOP: childTop = paddingTop; paddingTop += child.getMeasuredHeight(); break; case Gravity.CENTER_VERTICAL: childTop = Math.max((height - child.getMeasuredHeight()) / 2, paddingTop); break; case Gravity.BOTTOM: childTop = height - paddingBottom - child.getMeasuredHeight(); paddingBottom += child.getMeasuredHeight(); break; } childLeft += scrollX; child.layout(childLeft, childTop, childLeft + child.getMeasuredWidth(), childTop + child.getMeasuredHeight()); decorCount++; } } } final int childWidth = width - paddingLeft - paddingRight; // Page views. Do this once we have the right padding offsets from above. for (int i = 0; i < count; i++) { final View child = getChildAt(i); if (child.getVisibility() == GONE) { continue; } final LayoutParams lp = (LayoutParams) child.getLayoutParams(); if (lp.isDecor) { continue; } final ItemInfo ii = infoForChild(child); if (ii == null) { continue; } if (lp.needsMeasure) { // This was added during layout and needs measurement. // Do it now that we know what we're working with. lp.needsMeasure = false; final int widthSpec = MeasureSpec.makeMeasureSpec((int) (childWidth * lp.widthFactor), MeasureSpec.EXACTLY); final int heightSpec = MeasureSpec.makeMeasureSpec((int) (height - paddingTop - paddingBottom), MeasureSpec.EXACTLY); child.measure(widthSpec, heightSpec); } final int childMeasuredWidth = child.getMeasuredWidth(); final int startOffset = (int) (childWidth * ii.offset); final int childLeft; if (ViewCompatUtils.isLayoutRtl(this)) { childLeft = MAX_SCROLL_X - paddingRight - startOffset - childMeasuredWidth; } else { childLeft = paddingLeft + startOffset; } final int childTop = paddingTop; child.layout(childLeft, childTop, childLeft + childMeasuredWidth, childTop + child.getMeasuredHeight()); } mTopPageBounds = paddingTop; mBottomPageBounds = height - paddingBottom; mDecorChildCount = decorCount; if (mFirstLayout) { scrollToItem(mCurItem, false, 0, false); } mFirstLayout = false; }
From source file:cn.androidy.materialdesignsample.ryanharterviewpager.ViewPager.java
@Override protected void onLayout(boolean changed, int l, int t, int r, int b) { final int count = getChildCount(); int width = r - l; int height = b - t; int paddingLeft = getPaddingLeft(); int paddingTop = getPaddingTop(); int paddingRight = getPaddingRight(); int paddingBottom = getPaddingBottom(); final int scrollX = getScrollX(); final int scrollY = getScrollY(); int decorCount = 0; // First pass - decor views. We need to do this in two passes so that // we have the proper offsets for non-decor views later. for (int i = 0; i < count; i++) { final View child = getChildAt(i); if (child.getVisibility() != GONE) { final LayoutParams lp = (LayoutParams) child.getLayoutParams(); int childLeft = 0; int childTop = 0; if (lp.isDecor) { final int hgrav = lp.gravity & Gravity.HORIZONTAL_GRAVITY_MASK; final int vgrav = lp.gravity & Gravity.VERTICAL_GRAVITY_MASK; switch (hgrav) { default: childLeft = paddingLeft; break; case Gravity.LEFT: childLeft = paddingLeft; paddingLeft += child.getMeasuredWidth(); break; case Gravity.CENTER_HORIZONTAL: childLeft = Math.max((width - child.getMeasuredWidth()) / 2, paddingLeft); break; case Gravity.RIGHT: childLeft = width - paddingRight - child.getMeasuredWidth(); paddingRight += child.getMeasuredWidth(); break; }/*from w w w . j a va 2 s . c o m*/ switch (vgrav) { default: childTop = paddingTop; break; case Gravity.TOP: childTop = paddingTop; paddingTop += child.getMeasuredHeight(); break; case Gravity.CENTER_VERTICAL: childTop = Math.max((height - child.getMeasuredHeight()) / 2, paddingTop); break; case Gravity.BOTTOM: childTop = height - paddingBottom - child.getMeasuredHeight(); paddingBottom += child.getMeasuredHeight(); break; } if (isOrientationHorizontal()) { childLeft += scrollX; } else { childTop += scrollY; } child.layout(childLeft, childTop, childLeft + child.getMeasuredWidth(), childTop + child.getMeasuredHeight()); decorCount++; } } } int childSize = 0; if (isOrientationHorizontal()) { childSize = width - paddingLeft - paddingRight; } else { childSize = height - paddingTop - paddingBottom; } // Page views. Do this once we have the right padding offsets from above. for (int i = 0; i < count; i++) { final View child = getChildAt(i); if (child.getVisibility() != GONE) { final LayoutParams lp = (LayoutParams) child.getLayoutParams(); ItemInfo ii; if (!lp.isDecor && (ii = infoForChild(child)) != null) { int loff = (int) (childSize * ii.offset); int childLeft = paddingLeft + (isOrientationHorizontal() ? loff : 0); int childTop = paddingTop + (isOrientationHorizontal() ? 0 : loff); if (lp.needsMeasure) { // This was added during layout and needs measurement. // Do it now that we know what we're working with. lp.needsMeasure = false; int widthSpec = 0, heightSpec = 0; if (isOrientationHorizontal()) { widthSpec = MeasureSpec.makeMeasureSpec((int) (childSize * lp.sizeFactor), MeasureSpec.EXACTLY); heightSpec = MeasureSpec.makeMeasureSpec((int) (height - paddingTop - paddingBottom), MeasureSpec.EXACTLY); } else { widthSpec = MeasureSpec.makeMeasureSpec((int) (width - paddingLeft - paddingRight), MeasureSpec.EXACTLY); heightSpec = MeasureSpec.makeMeasureSpec((int) (childSize * lp.sizeFactor), MeasureSpec.EXACTLY); } child.measure(widthSpec, heightSpec); } if (DEBUG) Log.v(TAG, "Positioning #" + i + " " + child + " f=" + ii.object + ":" + childLeft + "," + childTop + " " + child.getMeasuredWidth() + "x" + child.getMeasuredHeight()); child.layout(childLeft, childTop, childLeft + child.getMeasuredWidth(), childTop + child.getMeasuredHeight()); } } } mLeftPageBounds = paddingLeft; mTopPageBounds = paddingTop; mRightPageBounds = width - paddingRight; mBottomPageBounds = height - paddingBottom; mDecorChildCount = decorCount; if (mFirstLayout) { scrollToItem(mCurItem, false, 0, false); } mFirstLayout = false; }
From source file:com.baiiu.autoloopviewpager.loopvp.LoopViewPager.java
@Override protected void onLayout(boolean changed, int l, int t, int r, int b) { mInLayout = true;/*from w ww. ja v a 2 s . c o m*/ populate(); mInLayout = false; final int count = getChildCount(); int width = r - l; int height = b - t; int paddingLeft = getPaddingLeft(); int paddingTop = getPaddingTop(); int paddingRight = getPaddingRight(); int paddingBottom = getPaddingBottom(); final int scrollX = getScrollX(); int decorCount = 0; // First pass - decor views. We need to do this in two passes so that // we have the proper offsets for non-decor views later. for (int i = 0; i < count; i++) { final View child = getChildAt(i); if (child.getVisibility() != GONE) { final LayoutParams lp = (LayoutParams) child.getLayoutParams(); int childLeft = 0; int childTop = 0; if (lp.isDecor) { final int hgrav = lp.gravity & Gravity.HORIZONTAL_GRAVITY_MASK; final int vgrav = lp.gravity & Gravity.VERTICAL_GRAVITY_MASK; switch (hgrav) { default: childLeft = paddingLeft; break; case Gravity.LEFT: childLeft = paddingLeft; paddingLeft += child.getMeasuredWidth(); break; case Gravity.CENTER_HORIZONTAL: childLeft = Math.max((width - child.getMeasuredWidth()) / 2, paddingLeft); break; case Gravity.RIGHT: childLeft = width - paddingRight - child.getMeasuredWidth(); paddingRight += child.getMeasuredWidth(); break; } switch (vgrav) { default: childTop = paddingTop; break; case Gravity.TOP: childTop = paddingTop; paddingTop += child.getMeasuredHeight(); break; case Gravity.CENTER_VERTICAL: childTop = Math.max((height - child.getMeasuredHeight()) / 2, paddingTop); break; case Gravity.BOTTOM: childTop = height - paddingBottom - child.getMeasuredHeight(); paddingBottom += child.getMeasuredHeight(); break; } childLeft += scrollX; child.layout(childLeft, childTop, childLeft + child.getMeasuredWidth(), childTop + child.getMeasuredHeight()); decorCount++; } } } // Page views. Do this once we have the right padding offsets from // above. for (int i = 0; i < count; i++) { final View child = getChildAt(i); if (child.getVisibility() != GONE) { final LayoutParams lp = (LayoutParams) child.getLayoutParams(); ItemInfo ii; if (!lp.isDecor && (ii = infoForChild(child)) != null) { int loff = (int) (width * ii.offset); int childLeft = paddingLeft + loff; int childTop = paddingTop; if (lp.needsMeasure) { // This was added during layout and needs measurement. // Do it now that we know what we're working with. lp.needsMeasure = false; final int widthSpec = MeasureSpec.makeMeasureSpec( (int) ((width - paddingLeft - paddingRight) * lp.widthFactor), MeasureSpec.EXACTLY); final int heightSpec = MeasureSpec .makeMeasureSpec((int) (height - paddingTop - paddingBottom), MeasureSpec.EXACTLY); child.measure(widthSpec, heightSpec); } if (DEBUG) { Log.v(TAG, "Positioning #" + i + " " + child + " f=" + ii.object + ":" + childLeft + "," + childTop + " " + child.getMeasuredWidth() + "x" + child.getMeasuredHeight()); } child.layout(childLeft, childTop, childLeft + child.getMeasuredWidth(), childTop + child.getMeasuredHeight()); } } } // CHANGE scrollTo(0, 0); mTopPageBounds = paddingTop; mBottomPageBounds = height - paddingBottom; mDecorChildCount = decorCount; mFirstLayout = false; }
From source file:com.tjych.swip.vertical.DirectionalViewPager.java
@Override protected void onLayout(boolean changed, int l, int t, int r, int b) { final int count = getChildCount(); int width = r - l; int height = b - t; int paddingLeft = getPaddingLeft(); int paddingTop = getPaddingTop(); int paddingRight = getPaddingRight(); int paddingBottom = getPaddingBottom(); final int scrollX = getScrollX(); final int scrollY = getScrollY(); int decorCount = 0; // First pass - decor views. We need to do this in two passes so that // we have the proper offsets for non-decor views later. for (int i = 0; i < count; i++) { final View child = getChildAt(i); if (child.getVisibility() != GONE) { final LayoutParams lp = (LayoutParams) child.getLayoutParams(); int childLeft = 0; int childTop = 0; if (lp.isDecor) { final int hgrav = lp.gravity & Gravity.HORIZONTAL_GRAVITY_MASK; final int vgrav = lp.gravity & Gravity.VERTICAL_GRAVITY_MASK; switch (hgrav) { default: childLeft = paddingLeft; break; case Gravity.LEFT: childLeft = paddingLeft; paddingLeft += child.getMeasuredWidth(); break; case Gravity.CENTER_HORIZONTAL: childLeft = Math.max((width - child.getMeasuredWidth()) / 2, paddingLeft); break; case Gravity.RIGHT: childLeft = width - paddingRight - child.getMeasuredWidth(); paddingRight += child.getMeasuredWidth(); break; }/*from ww w .j a v a2 s .c o m*/ switch (vgrav) { default: childTop = paddingTop; break; case Gravity.TOP: childTop = paddingTop; paddingTop += child.getMeasuredHeight(); break; case Gravity.CENTER_VERTICAL: childTop = Math.max((height - child.getMeasuredHeight()) / 2, paddingTop); break; case Gravity.BOTTOM: childTop = height - paddingBottom - child.getMeasuredHeight(); paddingBottom += child.getMeasuredHeight(); break; } childLeft += scrollX; childTop += scrollY; child.layout(childLeft, childTop, childLeft + child.getMeasuredWidth(), childTop + child.getMeasuredHeight()); decorCount++; } } } final int childWidth = width - paddingLeft - paddingRight; final int childHeight = height - paddingTop - paddingBottom; // Page views. Do this once we have the right padding offsets from above. for (int i = 0; i < count; i++) { final View child = getChildAt(i); if (child.getVisibility() != GONE) { final LayoutParams lp = (LayoutParams) child.getLayoutParams(); ItemInfo ii; if (!lp.isDecor && (ii = infoForChild(child)) != null) { int loff; int childLeft; int childTop; if (mOrientation == HORIZONTAL) { loff = (int) (childWidth * ii.offset); childLeft = paddingLeft + loff; childTop = paddingTop; } else { loff = (int) (childHeight * ii.offset); childLeft = paddingLeft; childTop = paddingTop + loff; } if (lp.needsMeasure) { // This was added during layout and needs measurement. // Do it now that we know what we're working with. lp.needsMeasure = false; int widthSpec; int heightSpec; if (mOrientation == HORIZONTAL) { widthSpec = MeasureSpec.makeMeasureSpec((int) (childWidth * lp.dimensionFactor), MeasureSpec.EXACTLY); heightSpec = MeasureSpec.makeMeasureSpec((int) (height - paddingTop - paddingBottom), MeasureSpec.EXACTLY); } else { widthSpec = MeasureSpec.makeMeasureSpec((int) (width - paddingLeft - paddingRight), MeasureSpec.EXACTLY); heightSpec = MeasureSpec.makeMeasureSpec((int) (childHeight * lp.dimensionFactor), MeasureSpec.EXACTLY); } child.measure(widthSpec, heightSpec); } if (DEBUG) Log.v(TAG, "Positioning #" + i + " " + child + " f=" + ii.object + ":" + childLeft + "," + childTop + " " + child.getMeasuredWidth() + "x" + child.getMeasuredHeight()); child.layout(childLeft, childTop, childLeft + child.getMeasuredWidth(), childTop + child.getMeasuredHeight()); } } } mLeftPageBounds = paddingLeft; mTopPageBounds = paddingTop; mRightPageBounds = paddingRight; mBottomPageBounds = height - paddingBottom; mDecorChildCount = decorCount; if (mFirstLayout) { scrollToItem(mCurItem, false, 0, false); } mFirstLayout = false; }
From source file:com.guide.ViewPager.java
@Override protected void onLayout(boolean changed, int l, int t, int r, int b) { final int count = getChildCount(); int width = r - l; int height = b - t; int paddingLeft = getPaddingLeft(); int paddingTop = getPaddingTop(); int paddingRight = getPaddingRight(); int paddingBottom = getPaddingBottom(); final int scrollX = getScrollX(); final int scrollY = getScrollY(); int decorCount = 0; // First pass - decor views. We need to do this in two passes so that // we have the proper offsets for non-decor views later. for (int i = 0; i < count; i++) { final View child = getChildAt(i); if (child.getVisibility() != GONE) { final LayoutParams lp = (LayoutParams) child.getLayoutParams(); int childLeft = 0; int childTop = 0; if (lp.isDecor) { final int hgrav = lp.gravity & Gravity.HORIZONTAL_GRAVITY_MASK; final int vgrav = lp.gravity & Gravity.VERTICAL_GRAVITY_MASK; switch (hgrav) { default: childLeft = paddingLeft; break; case Gravity.LEFT: childLeft = paddingLeft; paddingLeft += child.getMeasuredWidth(); break; case Gravity.CENTER_HORIZONTAL: childLeft = Math.max((width - child.getMeasuredWidth()) / 2, paddingLeft); break; case Gravity.RIGHT: childLeft = width - paddingRight - child.getMeasuredWidth(); paddingRight += child.getMeasuredWidth(); break; }/*from www .jav a 2 s.c o m*/ switch (vgrav) { default: childTop = paddingTop; break; case Gravity.TOP: childTop = paddingTop; paddingTop += child.getMeasuredHeight(); break; case Gravity.CENTER_VERTICAL: childTop = Math.max((height - child.getMeasuredHeight()) / 2, paddingTop); break; case Gravity.BOTTOM: childTop = height - paddingBottom - child.getMeasuredHeight(); paddingBottom += child.getMeasuredHeight(); break; } if (isOrientationHorizontal()) { childLeft += scrollX; } else { childTop += scrollY; } child.layout(childLeft, childTop, childLeft + child.getMeasuredWidth(), childTop + child.getMeasuredHeight()); decorCount++; } } } int childSize = 0; if (isOrientationHorizontal()) { childSize = width - paddingLeft - paddingRight; } else { childSize = height - paddingTop - paddingBottom; } // Page views. Do this once we have the right padding offsets from // above. for (int i = 0; i < count; i++) { final View child = getChildAt(i); if (child.getVisibility() != GONE) { final LayoutParams lp = (LayoutParams) child.getLayoutParams(); ItemInfo ii; if (!lp.isDecor && (ii = infoForChild(child)) != null) { int loff = (int) (childSize * ii.offset); int childLeft = paddingLeft + (isOrientationHorizontal() ? loff : 0); int childTop = paddingTop + (isOrientationHorizontal() ? 0 : loff); if (lp.needsMeasure) { // This was added during layout and needs measurement. // Do it now that we know what we're working with. lp.needsMeasure = false; int widthSpec = 0, heightSpec = 0; if (isOrientationHorizontal()) { widthSpec = MeasureSpec.makeMeasureSpec((int) (childSize * lp.sizeFactor), MeasureSpec.EXACTLY); heightSpec = MeasureSpec.makeMeasureSpec((int) (height - paddingTop - paddingBottom), MeasureSpec.EXACTLY); } else { widthSpec = MeasureSpec.makeMeasureSpec((int) (width - paddingLeft - paddingRight), MeasureSpec.EXACTLY); heightSpec = MeasureSpec.makeMeasureSpec((int) (childSize * lp.sizeFactor), MeasureSpec.EXACTLY); } child.measure(widthSpec, heightSpec); } if (DEBUG) Log.v(TAG, "Positioning #" + i + " " + child + " f=" + ii.object + ":" + childLeft + "," + childTop + " " + child.getMeasuredWidth() + "x" + child.getMeasuredHeight()); child.layout(childLeft, childTop, childLeft + child.getMeasuredWidth(), childTop + child.getMeasuredHeight()); } } } mLeftPageBounds = paddingLeft; mTopPageBounds = paddingTop; mRightPageBounds = width - paddingRight; mBottomPageBounds = height - paddingBottom; mDecorChildCount = decorCount; if (mFirstLayout) { scrollToItem(mCurItem, false, 0, false); } mFirstLayout = false; }