Example usage for android.view Gravity BOTTOM

List of usage examples for android.view Gravity BOTTOM

Introduction

In this page you can find the example usage for android.view Gravity BOTTOM.

Prototype

int BOTTOM

To view the source code for android.view Gravity BOTTOM.

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Document

Push object to the bottom of its container, not changing its size.

Usage

From source file:com.huyn.demogroup.bahavior.widget.CoordinatorLayout.java

private void offsetChildByInset(final View child, final Rect inset, final int layoutDirection) {
    if (!ViewCompat.isLaidOut(child)) {
        // The view has not been laid out yet,
        // so we can't obtain its bounds.
        return;/* w w  w  .  j  a  v  a2s .  com*/
    }

    final LayoutParams lp = (LayoutParams) child.getLayoutParams();
    final int absDodgeInsetEdges = GravityCompat.getAbsoluteGravity(lp.dodgeInsetEdges, layoutDirection);

    final Behavior behavior = lp.getBehavior();
    final Rect rect = mTempRect3;
    if (behavior != null && behavior.getInsetDodgeRect(this, child, rect)) {
        // Make sure that it intersects the views bounds
        if (!rect.intersect(child.getLeft(), child.getTop(), child.getRight(), child.getBottom())) {
            throw new IllegalArgumentException("Rect should intersect with child's bounds.");
        }
    } else {
        rect.set(child.getLeft(), child.getTop(), child.getRight(), child.getBottom());
    }

    if (rect.isEmpty()) {
        // Rect is empty so there is nothing to dodge against, skip...
        return;
    }

    boolean offsetY = false;
    if ((absDodgeInsetEdges & Gravity.TOP) == Gravity.TOP) {
        int distance = rect.top - lp.topMargin - lp.mInsetOffsetY;
        if (distance < inset.top) {
            setInsetOffsetY(child, inset.top - distance);
            offsetY = true;
        }
    }
    if ((absDodgeInsetEdges & Gravity.BOTTOM) == Gravity.BOTTOM) {
        int distance = getHeight() - rect.bottom - lp.bottomMargin + lp.mInsetOffsetY;
        if (distance < inset.bottom) {
            setInsetOffsetY(child, distance - inset.bottom);
            offsetY = true;
        }
    }
    if (!offsetY) {
        SysoutUtil.sysout("CoordinatorLayout", "offsetChildByInset");
        setInsetOffsetY(child, 0);
    }

    boolean offsetX = false;
    if ((absDodgeInsetEdges & Gravity.LEFT) == Gravity.LEFT) {
        int distance = rect.left - lp.leftMargin - lp.mInsetOffsetX;
        if (distance < inset.left) {
            setInsetOffsetX(child, inset.left - distance);
            offsetX = true;
        }
    }
    if ((absDodgeInsetEdges & Gravity.RIGHT) == Gravity.RIGHT) {
        int distance = getWidth() - rect.right - lp.rightMargin + lp.mInsetOffsetX;
        if (distance < inset.right) {
            setInsetOffsetX(child, distance - inset.right);
            offsetX = true;
        }
    }
    if (!offsetX) {
        setInsetOffsetX(child, 0);
    }
}

From source file:com.github.songnick.viewgroup.ScaleViewPager.java

@Override
protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
    // For simple implementation, our internal size is always 0.
    // We depend on the container to specify the layout size of
    // our view.  We can't really know what it is since we will be
    // adding and removing different arbitrary views and do not
    // want the layout to change as this happens.
    setMeasuredDimension(getDefaultSize(0, widthMeasureSpec), getDefaultSize(0, heightMeasureSpec));

    final int measuredWidth = getMeasuredWidth();
    final int maxGutterSize = measuredWidth / 10;
    mGutterSize = Math.min(maxGutterSize, mDefaultGutterSize);

    // Children are just made to fill our space.
    int childWidthSize = measuredWidth - getPaddingLeft() - getPaddingRight();
    int childHeightSize = getMeasuredHeight() - getPaddingTop() - getPaddingBottom();

    /*//from w  w w  .j ava2  s  .c om
     * Make sure all children have been properly measured. Decor views first.
     * Right now we cheat and make this less complicated by assuming decor
     * views won't intersect. We will pin to edges based on gravity.
     */
    int size = getChildCount();
    for (int i = 0; i < size; ++i) {
        final View child = getChildAt(i);
        if (child.getVisibility() != GONE) {
            final LayoutParams lp = (LayoutParams) child.getLayoutParams();
            if (lp != null && lp.isDecor) {
                final int hgrav = lp.gravity & Gravity.HORIZONTAL_GRAVITY_MASK;
                final int vgrav = lp.gravity & Gravity.VERTICAL_GRAVITY_MASK;
                int widthMode = MeasureSpec.AT_MOST;
                int heightMode = MeasureSpec.AT_MOST;
                boolean consumeVertical = vgrav == Gravity.TOP || vgrav == Gravity.BOTTOM;
                boolean consumeHorizontal = hgrav == Gravity.LEFT || hgrav == Gravity.RIGHT;

                if (consumeVertical) {
                    widthMode = MeasureSpec.EXACTLY;
                } else if (consumeHorizontal) {
                    heightMode = MeasureSpec.EXACTLY;
                }

                int widthSize = childWidthSize;
                int heightSize = childHeightSize;
                if (lp.width != LayoutParams.WRAP_CONTENT) {
                    widthMode = MeasureSpec.EXACTLY;
                    if (lp.width != LayoutParams.FILL_PARENT) {
                        widthSize = lp.width;
                    }
                }
                if (lp.height != LayoutParams.WRAP_CONTENT) {
                    heightMode = MeasureSpec.EXACTLY;
                    if (lp.height != LayoutParams.FILL_PARENT) {
                        heightSize = lp.height;
                    }
                }
                final int widthSpec = MeasureSpec.makeMeasureSpec(widthSize, widthMode);
                final int heightSpec = MeasureSpec.makeMeasureSpec(heightSize, heightMode);
                child.measure(widthSpec, heightSpec);

                if (consumeVertical) {
                    childHeightSize -= child.getMeasuredHeight();
                } else if (consumeHorizontal) {
                    childWidthSize -= child.getMeasuredWidth();
                }
            }
        }
    }

    mChildWidthMeasureSpec = MeasureSpec.makeMeasureSpec(childWidthSize, MeasureSpec.EXACTLY);
    mChildHeightMeasureSpec = MeasureSpec.makeMeasureSpec(childHeightSize, MeasureSpec.EXACTLY);

    // Make sure we have created all fragments that we need to have shown.
    mInLayout = true;
    populate();
    mInLayout = false;

    // Page views next.
    size = getChildCount();
    for (int i = 0; i < size; ++i) {
        final View child = getChildAt(i);
        if (child.getVisibility() != GONE) {
            if (DEBUG)
                Log.v(TAG, "Measuring #" + i + " " + child + ": " + mChildWidthMeasureSpec);
            Log.e(TAG, " cooooooo ");
            final LayoutParams lp = (LayoutParams) child.getLayoutParams();
            if (lp == null || !lp.isDecor) {
                final int widthSpec = MeasureSpec.makeMeasureSpec((int) (childWidthSize * lp.widthFactor),
                        MeasureSpec.EXACTLY);
                child.measure(widthSpec, mChildHeightMeasureSpec);
            }
        }
    }
}

From source file:android.support.v7.widget.Toolbar.java

@Override
protected void onLayout(boolean changed, int l, int t, int r, int b) {
    final boolean isRtl = ViewCompat.getLayoutDirection(this) == ViewCompat.LAYOUT_DIRECTION_RTL;
    final int width = getWidth();
    final int height = getHeight();
    final int paddingLeft = getPaddingLeft();
    final int paddingRight = getPaddingRight();
    final int paddingTop = getPaddingTop();
    final int paddingBottom = getPaddingBottom();
    int left = paddingLeft;
    int right = width - paddingRight;

    final int[] collapsingMargins = mTempMargins;
    collapsingMargins[0] = collapsingMargins[1] = 0;

    // Align views within the minimum toolbar height, if set.
    final int alignmentHeight = getMinimumHeightCompat();

    if (shouldLayout(mNavButtonView)) {
        if (isRtl) {
            right = layoutChildRight(mNavButtonView, right, collapsingMargins, alignmentHeight);
        } else {//from  w w w  . j a v  a  2s .com
            left = layoutChildLeft(mNavButtonView, left, collapsingMargins, alignmentHeight);
        }
    }

    if (shouldLayout(mCollapseButtonView)) {
        if (isRtl) {
            right = layoutChildRight(mCollapseButtonView, right, collapsingMargins, alignmentHeight);
        } else {
            left = layoutChildLeft(mCollapseButtonView, left, collapsingMargins, alignmentHeight);
        }
    }

    if (shouldLayout(mMenuView)) {
        if (isRtl) {
            left = layoutChildLeft(mMenuView, left, collapsingMargins, alignmentHeight);
        } else {
            right = layoutChildRight(mMenuView, right, collapsingMargins, alignmentHeight);
        }
    }

    collapsingMargins[0] = Math.max(0, getContentInsetLeft() - left);
    collapsingMargins[1] = Math.max(0, getContentInsetRight() - (width - paddingRight - right));
    left = Math.max(left, getContentInsetLeft());
    right = Math.min(right, width - paddingRight - getContentInsetRight());

    if (shouldLayout(mExpandedActionView)) {
        if (isRtl) {
            right = layoutChildRight(mExpandedActionView, right, collapsingMargins, alignmentHeight);
        } else {
            left = layoutChildLeft(mExpandedActionView, left, collapsingMargins, alignmentHeight);
        }
    }

    if (shouldLayout(mLogoView)) {
        if (isRtl) {
            right = layoutChildRight(mLogoView, right, collapsingMargins, alignmentHeight);
        } else {
            left = layoutChildLeft(mLogoView, left, collapsingMargins, alignmentHeight);
        }
    }

    final boolean layoutTitle = shouldLayout(mTitleTextView);
    final boolean layoutSubtitle = shouldLayout(mSubtitleTextView);
    int titleHeight = 0;
    if (layoutTitle) {
        final LayoutParams lp = (LayoutParams) mTitleTextView.getLayoutParams();
        titleHeight += lp.topMargin + mTitleTextView.getMeasuredHeight() + lp.bottomMargin;
    }
    if (layoutSubtitle) {
        final LayoutParams lp = (LayoutParams) mSubtitleTextView.getLayoutParams();
        titleHeight += lp.topMargin + mSubtitleTextView.getMeasuredHeight() + lp.bottomMargin;
    }

    if (layoutTitle || layoutSubtitle) {
        int titleTop;
        final View topChild = layoutTitle ? mTitleTextView : mSubtitleTextView;
        final View bottomChild = layoutSubtitle ? mSubtitleTextView : mTitleTextView;
        final LayoutParams toplp = (LayoutParams) topChild.getLayoutParams();
        final LayoutParams bottomlp = (LayoutParams) bottomChild.getLayoutParams();
        final boolean titleHasWidth = layoutTitle && mTitleTextView.getMeasuredWidth() > 0
                || layoutSubtitle && mSubtitleTextView.getMeasuredWidth() > 0;

        switch (mGravity & Gravity.VERTICAL_GRAVITY_MASK) {
        case Gravity.TOP:
            titleTop = getPaddingTop() + toplp.topMargin + mTitleMarginTop;
            break;
        default:
        case Gravity.CENTER_VERTICAL:
            final int space = height - paddingTop - paddingBottom;
            int spaceAbove = (space - titleHeight) / 2;
            if (spaceAbove < toplp.topMargin + mTitleMarginTop) {
                spaceAbove = toplp.topMargin + mTitleMarginTop;
            } else {
                final int spaceBelow = height - paddingBottom - titleHeight - spaceAbove - paddingTop;
                if (spaceBelow < toplp.bottomMargin + mTitleMarginBottom) {
                    spaceAbove = Math.max(0,
                            spaceAbove - (bottomlp.bottomMargin + mTitleMarginBottom - spaceBelow));
                }
            }
            titleTop = paddingTop + spaceAbove;
            break;
        case Gravity.BOTTOM:
            titleTop = height - paddingBottom - bottomlp.bottomMargin - mTitleMarginBottom - titleHeight;
            break;
        }
        if (isRtl) {
            final int rd = (titleHasWidth ? mTitleMarginStart : 0) - collapsingMargins[1];
            right -= Math.max(0, rd);
            collapsingMargins[1] = Math.max(0, -rd);
            int titleRight = right;
            int subtitleRight = right;

            if (layoutTitle) {
                final LayoutParams lp = (LayoutParams) mTitleTextView.getLayoutParams();
                final int titleLeft = titleRight - mTitleTextView.getMeasuredWidth();
                final int titleBottom = titleTop + mTitleTextView.getMeasuredHeight();
                mTitleTextView.layout(titleLeft, titleTop, titleRight, titleBottom);
                titleRight = titleLeft - mTitleMarginEnd;
                titleTop = titleBottom + lp.bottomMargin;
            }
            if (layoutSubtitle) {
                final LayoutParams lp = (LayoutParams) mSubtitleTextView.getLayoutParams();
                titleTop += lp.topMargin;
                final int subtitleLeft = subtitleRight - mSubtitleTextView.getMeasuredWidth();
                final int subtitleBottom = titleTop + mSubtitleTextView.getMeasuredHeight();
                mSubtitleTextView.layout(subtitleLeft, titleTop, subtitleRight, subtitleBottom);
                subtitleRight = subtitleRight - mTitleMarginEnd;
                titleTop = subtitleBottom + lp.bottomMargin;
            }
            if (titleHasWidth) {
                right = Math.min(titleRight, subtitleRight);
            }
        } else {
            final int ld = (titleHasWidth ? mTitleMarginStart : 0) - collapsingMargins[0];
            left += Math.max(0, ld);
            collapsingMargins[0] = Math.max(0, -ld);
            int titleLeft = left;
            int subtitleLeft = left;

            if (layoutTitle) {
                final LayoutParams lp = (LayoutParams) mTitleTextView.getLayoutParams();
                final int titleRight = titleLeft + mTitleTextView.getMeasuredWidth();
                final int titleBottom = titleTop + mTitleTextView.getMeasuredHeight();
                mTitleTextView.layout(titleLeft, titleTop, titleRight, titleBottom);
                titleLeft = titleRight + mTitleMarginEnd;
                titleTop = titleBottom + lp.bottomMargin;
            }
            if (layoutSubtitle) {
                final LayoutParams lp = (LayoutParams) mSubtitleTextView.getLayoutParams();
                titleTop += lp.topMargin;
                final int subtitleRight = subtitleLeft + mSubtitleTextView.getMeasuredWidth();
                final int subtitleBottom = titleTop + mSubtitleTextView.getMeasuredHeight();
                mSubtitleTextView.layout(subtitleLeft, titleTop, subtitleRight, subtitleBottom);
                subtitleLeft = subtitleRight + mTitleMarginEnd;
                titleTop = subtitleBottom + lp.bottomMargin;
            }
            if (titleHasWidth) {
                left = Math.max(titleLeft, subtitleLeft);
            }
        }
    }

    // Get all remaining children sorted for layout. This is all prepared
    // such that absolute layout direction can be used below.

    addCustomViewsWithGravity(mTempViews, Gravity.LEFT);
    final int leftViewsCount = mTempViews.size();
    for (int i = 0; i < leftViewsCount; i++) {
        left = layoutChildLeft(mTempViews.get(i), left, collapsingMargins, alignmentHeight);
    }

    addCustomViewsWithGravity(mTempViews, Gravity.RIGHT);
    final int rightViewsCount = mTempViews.size();
    for (int i = 0; i < rightViewsCount; i++) {
        right = layoutChildRight(mTempViews.get(i), right, collapsingMargins, alignmentHeight);
    }

    // Centered views try to center with respect to the whole bar, but views pinned
    // to the left or right can push the mass of centered views to one side or the other.
    addCustomViewsWithGravity(mTempViews, Gravity.CENTER_HORIZONTAL);
    final int centerViewsWidth = getViewListMeasuredWidth(mTempViews, collapsingMargins);
    final int parentCenter = paddingLeft + (width - paddingLeft - paddingRight) / 2;
    final int halfCenterViewsWidth = centerViewsWidth / 2;
    int centerLeft = parentCenter - halfCenterViewsWidth;
    final int centerRight = centerLeft + centerViewsWidth;
    if (centerLeft < left) {
        centerLeft = left;
    } else if (centerRight > right) {
        centerLeft -= centerRight - right;
    }

    final int centerViewsCount = mTempViews.size();
    for (int i = 0; i < centerViewsCount; i++) {
        centerLeft = layoutChildLeft(mTempViews.get(i), centerLeft, collapsingMargins, alignmentHeight);
    }

    mTempViews.clear();
}

From source file:com.aizou.core.widget.pagerIndicator.viewpager.FixedViewPager.java

@Override
protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
    // For simple implementation, our internal size is always 0.
    // We depend on the container to specify the layout size of
    // our view. We can't really know what it is since we will be
    // adding and removing different arbitrary views and do not
    // want the layout to change as this happens.
    setMeasuredDimension(getDefaultSize(0, widthMeasureSpec), getDefaultSize(0, heightMeasureSpec));

    final int measuredWidth = getMeasuredWidth();
    final int maxGutterSize = measuredWidth / 10;
    mGutterSize = Math.min(maxGutterSize, mDefaultGutterSize);

    // Children are just made to fill our space.
    int childWidthSize = measuredWidth - getPaddingLeft() - getPaddingRight();
    int childHeightSize = getMeasuredHeight() - getPaddingTop() - getPaddingBottom();

    /*/*w  w w  . j av a2s.c o  m*/
     * Make sure all children have been properly measured. Decor views
     * first. Right now we cheat and make this less complicated by assuming
     * decor views won't intersect. We will pin to edges based on gravity.
     */
    int size = getChildCount();
    for (int i = 0; i < size; ++i) {
        final View child = getChildAt(i);
        if (child.getVisibility() != GONE) {
            final LayoutParams lp = (LayoutParams) child.getLayoutParams();
            if (lp != null && lp.isDecor) {
                final int hgrav = lp.gravity & Gravity.HORIZONTAL_GRAVITY_MASK;
                final int vgrav = lp.gravity & Gravity.VERTICAL_GRAVITY_MASK;
                int widthMode = MeasureSpec.AT_MOST;
                int heightMode = MeasureSpec.AT_MOST;
                boolean consumeVertical = vgrav == Gravity.TOP || vgrav == Gravity.BOTTOM;
                boolean consumeHorizontal = hgrav == Gravity.LEFT || hgrav == Gravity.RIGHT;

                if (consumeVertical) {
                    widthMode = MeasureSpec.EXACTLY;
                } else if (consumeHorizontal) {
                    heightMode = MeasureSpec.EXACTLY;
                }

                int widthSize = childWidthSize;
                int heightSize = childHeightSize;
                if (lp.width != LayoutParams.WRAP_CONTENT) {
                    widthMode = MeasureSpec.EXACTLY;
                    if (lp.width != LayoutParams.FILL_PARENT) {
                        widthSize = lp.width;
                    }
                }
                if (lp.height != LayoutParams.WRAP_CONTENT) {
                    heightMode = MeasureSpec.EXACTLY;
                    if (lp.height != LayoutParams.FILL_PARENT) {
                        heightSize = lp.height;
                    }
                }
                final int widthSpec = MeasureSpec.makeMeasureSpec(widthSize, widthMode);
                final int heightSpec = MeasureSpec.makeMeasureSpec(heightSize, heightMode);
                child.measure(widthSpec, heightSpec);

                if (consumeVertical) {
                    childHeightSize -= child.getMeasuredHeight();
                } else if (consumeHorizontal) {
                    childWidthSize -= child.getMeasuredWidth();
                }
            }
        }
    }

    mChildWidthMeasureSpec = MeasureSpec.makeMeasureSpec(childWidthSize, MeasureSpec.EXACTLY);
    mChildHeightMeasureSpec = MeasureSpec.makeMeasureSpec(childHeightSize, MeasureSpec.EXACTLY);

    // Make sure we have created all fragments that we need to have shown.
    mInLayout = true;
    populate();
    mInLayout = false;

    // Page views next.
    size = getChildCount();
    for (int i = 0; i < size; ++i) {
        final View child = getChildAt(i);
        if (child.getVisibility() != GONE) {
            if (DEBUG)
                Log.v(TAG, "Measuring #" + i + " " + child + ": " + mChildWidthMeasureSpec);

            final LayoutParams lp = (LayoutParams) child.getLayoutParams();
            if (lp == null || !lp.isDecor) {
                final int widthSpec = MeasureSpec.makeMeasureSpec((int) (childWidthSize * lp.widthFactor),
                        MeasureSpec.EXACTLY);
                child.measure(widthSpec, mChildHeightMeasureSpec);
            }
        }
    }
}

From source file:cn.trinea.android.common.view.CycleViewPager.java

@Override
protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
    // For simple implementation, or internal size is always 0.
    // We depend on the container to specify the layout size of
    // our view.  We can't really know what it is since we will be
    // adding and removing different arbitrary views and do not
    // want the layout to change as this happens.
    setMeasuredDimension(getDefaultSize(0, widthMeasureSpec), getDefaultSize(0, heightMeasureSpec));

    final int measuredWidth = getMeasuredWidth();
    final int maxGutterSize = measuredWidth / 10;
    mGutterSize = Math.min(maxGutterSize, mDefaultGutterSize);

    // Children are just made to fill our space.
    int childWidthSize = measuredWidth - getPaddingLeft() - getPaddingRight();
    int childHeightSize = getMeasuredHeight() - getPaddingTop() - getPaddingBottom();

    /*/*from ww  w .  j  a  v a 2s  .  c  o m*/
     * Make sure all children have been properly measured. Decor views first.
     * Right now we cheat and make this less complicated by assuming decor
     * views won't intersect. We will pin to edges based on gravity.
     */
    int size = getChildCount();
    for (int i = 0; i < size; ++i) {
        final View child = getChildAt(i);
        if (child.getVisibility() != GONE) {
            final LayoutParams lp = (LayoutParams) child.getLayoutParams();
            if (lp != null && lp.isDecor) {
                final int hgrav = lp.gravity & Gravity.HORIZONTAL_GRAVITY_MASK;
                final int vgrav = lp.gravity & Gravity.VERTICAL_GRAVITY_MASK;
                int widthMode = MeasureSpec.AT_MOST;
                int heightMode = MeasureSpec.AT_MOST;
                boolean consumeVertical = vgrav == Gravity.TOP || vgrav == Gravity.BOTTOM;
                boolean consumeHorizontal = hgrav == Gravity.LEFT || hgrav == Gravity.RIGHT;

                if (consumeVertical) {
                    widthMode = MeasureSpec.EXACTLY;
                } else if (consumeHorizontal) {
                    heightMode = MeasureSpec.EXACTLY;
                }

                int widthSize = childWidthSize;
                int heightSize = childHeightSize;
                if (lp.width != LayoutParams.WRAP_CONTENT) {
                    widthMode = MeasureSpec.EXACTLY;
                    if (lp.width != LayoutParams.FILL_PARENT) {
                        widthSize = lp.width;
                    }
                }
                if (lp.height != LayoutParams.WRAP_CONTENT) {
                    heightMode = MeasureSpec.EXACTLY;
                    if (lp.height != LayoutParams.FILL_PARENT) {
                        heightSize = lp.height;
                    }
                }
                final int widthSpec = MeasureSpec.makeMeasureSpec(widthSize, widthMode);
                final int heightSpec = MeasureSpec.makeMeasureSpec(heightSize, heightMode);
                child.measure(widthSpec, heightSpec);

                if (consumeVertical) {
                    childHeightSize -= child.getMeasuredHeight();
                } else if (consumeHorizontal) {
                    childWidthSize -= child.getMeasuredWidth();
                }
            }
        }
    }

    mChildWidthMeasureSpec = MeasureSpec.makeMeasureSpec(childWidthSize, MeasureSpec.EXACTLY);
    mChildHeightMeasureSpec = MeasureSpec.makeMeasureSpec(childHeightSize, MeasureSpec.EXACTLY);

    // Make sure we have created all fragments that we need to have shown.
    mInLayout = true;
    populate();
    mInLayout = false;

    // Page views next.
    size = getChildCount();
    for (int i = 0; i < size; ++i) {
        final View child = getChildAt(i);
        if (child.getVisibility() != GONE) {
            if (DEBUG)
                Log.v(TAG, "Measuring #" + i + " " + child + ": " + mChildWidthMeasureSpec);

            final LayoutParams lp = (LayoutParams) child.getLayoutParams();
            if (lp == null || !lp.isDecor) {
                final int widthSpec = MeasureSpec.makeMeasureSpec((int) (childWidthSize * lp.widthFactor),
                        MeasureSpec.EXACTLY);
                child.measure(widthSpec, mChildHeightMeasureSpec);
            }
        }
    }
}

From source file:android.support.v7.widget.LinearLayoutCompat.java

/**
 * Position the children during a layout pass if the orientation of this
 * LinearLayout is set to {@link #VERTICAL}.
 *
 * @see #getOrientation()/*from   w  w w . j  av  a2s  .  c o  m*/
 * @see #setOrientation(int)
 * @see #onLayout(boolean, int, int, int, int)
 * @param left
 * @param top
 * @param right
 * @param bottom
 */
void layoutVertical(int left, int top, int right, int bottom) {
    final int paddingLeft = getPaddingLeft();

    int childTop;
    int childLeft;

    // Where right end of child should go
    final int width = right - left;
    int childRight = width - getPaddingRight();

    // Space available for child
    int childSpace = width - paddingLeft - getPaddingRight();

    final int count = getVirtualChildCount();

    final int majorGravity = mGravity & Gravity.VERTICAL_GRAVITY_MASK;
    final int minorGravity = mGravity & GravityCompat.RELATIVE_HORIZONTAL_GRAVITY_MASK;

    switch (majorGravity) {
    case Gravity.BOTTOM:
        // mTotalLength contains the padding already
        childTop = getPaddingTop() + bottom - top - mTotalLength;
        break;

    // mTotalLength contains the padding already
    case Gravity.CENTER_VERTICAL:
        childTop = getPaddingTop() + (bottom - top - mTotalLength) / 2;
        break;

    case Gravity.TOP:
    default:
        childTop = getPaddingTop();
        break;
    }

    for (int i = 0; i < count; i++) {
        final View child = getVirtualChildAt(i);
        if (child == null) {
            childTop += measureNullChild(i);
        } else if (child.getVisibility() != GONE) {
            final int childWidth = child.getMeasuredWidth();
            final int childHeight = child.getMeasuredHeight();

            final LinearLayoutCompat.LayoutParams lp = (LinearLayoutCompat.LayoutParams) child
                    .getLayoutParams();

            int gravity = lp.gravity;
            if (gravity < 0) {
                gravity = minorGravity;
            }
            final int layoutDirection = ViewCompat.getLayoutDirection(this);
            final int absoluteGravity = GravityCompat.getAbsoluteGravity(gravity, layoutDirection);
            switch (absoluteGravity & Gravity.HORIZONTAL_GRAVITY_MASK) {
            case Gravity.CENTER_HORIZONTAL:
                childLeft = paddingLeft + ((childSpace - childWidth) / 2) + lp.leftMargin - lp.rightMargin;
                break;

            case Gravity.RIGHT:
                childLeft = childRight - childWidth - lp.rightMargin;
                break;

            case Gravity.LEFT:
            default:
                childLeft = paddingLeft + lp.leftMargin;
                break;
            }

            if (hasDividerBeforeChildAt(i)) {
                childTop += mDividerHeight;
            }

            childTop += lp.topMargin;
            setChildFrame(child, childLeft, childTop + getLocationOffset(child), childWidth, childHeight);
            childTop += childHeight + lp.bottomMargin + getNextLocationOffset(child);

            i += getChildrenSkipCount(child, i);
        }
    }
}

From source file:cn.androidy.materialdesignsample.ryanharterviewpager.ViewPager.java

@Override
protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
    // For simple implementation, our internal size is always 0.
    // We depend on the container to specify the layout size of
    // our view.  We can't really know what it is since we will be
    // adding and removing different arbitrary views and do not
    // want the layout to change as this happens.
    setMeasuredDimension(getDefaultSize(0, widthMeasureSpec), getDefaultSize(0, heightMeasureSpec));

    final int measuredWidth = getMeasuredWidth();
    final int measuredHeight = getMeasuredHeight();
    final int maxGutterSize = (isOrientationHorizontal() ? measuredWidth : measuredHeight) / 10;
    mGutterSize = Math.min(maxGutterSize, mDefaultGutterSize);

    // Children are just made to fill our space.
    int childWidthSize = measuredWidth - getPaddingLeft() - getPaddingRight();
    int childHeightSize = measuredHeight - getPaddingTop() - getPaddingBottom();

    /*//from  www  .j  a  va 2  s . co  m
     * Make sure all children have been properly measured. Decor views first.
     * Right now we cheat and make this less complicated by assuming decor
     * views won't intersect. We will pin to edges based on gravity.
     */
    int size = getChildCount();
    for (int i = 0; i < size; ++i) {
        final View child = getChildAt(i);
        if (child.getVisibility() != GONE) {
            final LayoutParams lp = (LayoutParams) child.getLayoutParams();
            if (lp != null && lp.isDecor) {
                final int hgrav = lp.gravity & Gravity.HORIZONTAL_GRAVITY_MASK;
                final int vgrav = lp.gravity & Gravity.VERTICAL_GRAVITY_MASK;
                int widthMode = MeasureSpec.AT_MOST;
                int heightMode = MeasureSpec.AT_MOST;
                boolean consumeVertical = vgrav == Gravity.TOP || vgrav == Gravity.BOTTOM;
                boolean consumeHorizontal = hgrav == Gravity.LEFT || hgrav == Gravity.RIGHT;

                if (consumeVertical) {
                    widthMode = MeasureSpec.EXACTLY;
                } else if (consumeHorizontal) {
                    heightMode = MeasureSpec.EXACTLY;
                }

                int widthSize = childWidthSize;
                int heightSize = childHeightSize;
                if (lp.width != LayoutParams.WRAP_CONTENT) {
                    widthMode = MeasureSpec.EXACTLY;
                    if (lp.width != LayoutParams.MATCH_PARENT) {
                        widthSize = lp.width;
                    }
                }
                if (lp.height != LayoutParams.WRAP_CONTENT) {
                    heightMode = MeasureSpec.EXACTLY;
                    if (lp.height != LayoutParams.MATCH_PARENT) {
                        heightSize = lp.height;
                    }
                }
                final int widthSpec = MeasureSpec.makeMeasureSpec(widthSize, widthMode);
                final int heightSpec = MeasureSpec.makeMeasureSpec(heightSize, heightMode);
                child.measure(widthSpec, heightSpec);

                if (consumeVertical) {
                    childHeightSize -= child.getMeasuredHeight();
                } else if (consumeHorizontal) {
                    childWidthSize -= child.getMeasuredWidth();
                }
            }
        }
    }

    mChildWidthMeasureSpec = MeasureSpec.makeMeasureSpec(childWidthSize, MeasureSpec.EXACTLY);
    mChildHeightMeasureSpec = MeasureSpec.makeMeasureSpec(childHeightSize, MeasureSpec.EXACTLY);

    // Make sure we have created all fragments that we need to have shown.
    mInLayout = true;
    populate();
    mInLayout = false;

    // Page views next.
    size = getChildCount();
    for (int i = 0; i < size; ++i) {
        final View child = getChildAt(i);
        if (child.getVisibility() != GONE) {
            if (DEBUG)
                Log.v(TAG, "Measuring #" + i + " " + child + ": " + mChildWidthMeasureSpec);

            final LayoutParams lp = (LayoutParams) child.getLayoutParams();
            if (lp == null || !lp.isDecor) {
                if (isOrientationHorizontal()) {
                    final int widthSpec = MeasureSpec.makeMeasureSpec((int) (childWidthSize * lp.sizeFactor),
                            MeasureSpec.EXACTLY);
                    child.measure(widthSpec, mChildHeightMeasureSpec);
                } else {
                    final int heightSpec = MeasureSpec.makeMeasureSpec((int) (childHeightSize * lp.sizeFactor),
                            MeasureSpec.EXACTLY);
                    child.measure(mChildWidthMeasureSpec, heightSpec);
                }
            }
        }
    }
}

From source file:android.support.design.widget.CoordinatorLayout.java

private void offsetChildByInset(final View child, final Rect inset, final int layoutDirection) {
    if (!ViewCompat.isLaidOut(child)) {
        // The view has not been laid out yet, so we can't obtain its bounds.
        return;//from   www. j a v a2 s  .  c  o  m
    }

    if (child.getWidth() <= 0 || child.getHeight() <= 0) {
        // Bounds are empty so there is nothing to dodge against, skip...
        return;
    }

    final LayoutParams lp = (LayoutParams) child.getLayoutParams();
    final Behavior behavior = lp.getBehavior();
    final Rect dodgeRect = acquireTempRect();
    final Rect bounds = acquireTempRect();
    bounds.set(child.getLeft(), child.getTop(), child.getRight(), child.getBottom());

    if (behavior != null && behavior.getInsetDodgeRect(this, child, dodgeRect)) {
        // Make sure that the rect is within the view's bounds
        if (!bounds.contains(dodgeRect)) {
            throw new IllegalArgumentException("Rect should be within the child's bounds." + " Rect:"
                    + dodgeRect.toShortString() + " | Bounds:" + bounds.toShortString());
        }
    } else {
        dodgeRect.set(bounds);
    }

    // We can release the bounds rect now
    releaseTempRect(bounds);

    if (dodgeRect.isEmpty()) {
        // Rect is empty so there is nothing to dodge against, skip...
        releaseTempRect(dodgeRect);
        return;
    }

    final int absDodgeInsetEdges = GravityCompat.getAbsoluteGravity(lp.dodgeInsetEdges, layoutDirection);

    boolean offsetY = false;
    if ((absDodgeInsetEdges & Gravity.TOP) == Gravity.TOP) {
        int distance = dodgeRect.top - lp.topMargin - lp.mInsetOffsetY;
        if (distance < inset.top) {
            setInsetOffsetY(child, inset.top - distance);
            offsetY = true;
        }
    }
    if ((absDodgeInsetEdges & Gravity.BOTTOM) == Gravity.BOTTOM) {
        int distance = getHeight() - dodgeRect.bottom - lp.bottomMargin + lp.mInsetOffsetY;
        if (distance < inset.bottom) {
            setInsetOffsetY(child, distance - inset.bottom);
            offsetY = true;
        }
    }
    if (!offsetY) {
        setInsetOffsetY(child, 0);
    }

    boolean offsetX = false;
    if ((absDodgeInsetEdges & Gravity.LEFT) == Gravity.LEFT) {
        int distance = dodgeRect.left - lp.leftMargin - lp.mInsetOffsetX;
        if (distance < inset.left) {
            setInsetOffsetX(child, inset.left - distance);
            offsetX = true;
        }
    }
    if ((absDodgeInsetEdges & Gravity.RIGHT) == Gravity.RIGHT) {
        int distance = getWidth() - dodgeRect.right - lp.rightMargin + lp.mInsetOffsetX;
        if (distance < inset.right) {
            setInsetOffsetX(child, distance - inset.right);
            offsetX = true;
        }
    }
    if (!offsetX) {
        setInsetOffsetX(child, 0);
    }

    releaseTempRect(dodgeRect);
}

From source file:com.example.mvpdemo.widget.NarrowParentViewPager.java

@Override
protected void onLayout(boolean changed, int l, int t, int r, int b) {

    Log.i("xx", "================= onLayout =================");

    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;
                }// ww  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;
                }
                childLeft += scrollX;
                child.layout(childLeft, childTop, childLeft + child.getMeasuredWidth(),
                        childTop + child.getMeasuredHeight());
                decorCount++;
            }
        }
    }

    final int childWidth = width - paddingLeft - paddingRight - 2 * (OFFSET);
    // 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 && (child == mCurrent && mDragDistance == 0 || child != mCurrent)) {
            final LayoutParams lp = (LayoutParams) child.getLayoutParams();
            ItemInfo ii;
            if (!lp.isDecor && (ii = infoForChild(child)) != null) {

                Log.i("Narrow", "INDEX = " + i + "   offset = " + ii.offset);

                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 + OFFSET + PADDING,
                        childTop + (int) ((OFFSET + PADDING) * (float) getHeight() / getWidth()),
                        (int) (childLeft + child.getMeasuredWidth()) + OFFSET + PADDING,
                        childTop + child.getMeasuredHeight());
            }
        }
    }
    mTopPageBounds = paddingTop;
    mBottomPageBounds = height - paddingBottom;
    mDecorChildCount = decorCount;

    if (mFirstLayout) {
        scrollToItem(mCurItem, false, 0, false);
    }
    mFirstLayout = false;
}

From source file:android.support.v7ox.widget.Toolbar.java

@Override
protected void onLayout(boolean changed, int l, int t, int r, int b) {
    final boolean isRtl = ViewCompat.getLayoutDirection(this) == ViewCompat.LAYOUT_DIRECTION_RTL;
    final int width = getWidth();
    final int height = getHeight();
    final int paddingLeft = getPaddingLeft();
    final int paddingRight = getPaddingRight();
    final int paddingTop = getPaddingTop();
    final int paddingBottom = getPaddingBottom();
    int left = paddingLeft;
    int right = width - paddingRight;

    final int[] collapsingMargins = mTempMargins;
    collapsingMargins[0] = collapsingMargins[1] = 0;

    // Align views within the minimum toolbar height, if set.
    final int alignmentHeight = ViewCompat.getMinimumHeight(this);

    if (shouldLayout(mNavButtonView)) {
        if (isRtl) {
            right = layoutChildRight(mNavButtonView, right, collapsingMargins, alignmentHeight);
        } else {//from w  w  w  . j  ava 2s. c o  m
            left = layoutChildLeft(mNavButtonView, left, collapsingMargins, alignmentHeight);
        }
    }

    if (shouldLayout(mCollapseButtonView)) {
        if (isRtl) {
            right = layoutChildRight(mCollapseButtonView, right, collapsingMargins, alignmentHeight);
        } else {
            left = layoutChildLeft(mCollapseButtonView, left, collapsingMargins, alignmentHeight);
        }
    }

    if (shouldLayout(mMenuView)) {
        if (isRtl) {
            left = layoutChildLeft(mMenuView, left, collapsingMargins, alignmentHeight);
        } else {
            right = layoutChildRight(mMenuView, right, collapsingMargins, alignmentHeight);
        }
    }

    collapsingMargins[0] = Math.max(0, getContentInsetLeft() - left);
    collapsingMargins[1] = Math.max(0, getContentInsetRight() - (width - paddingRight - right));
    left = Math.max(left, getContentInsetLeft());
    right = Math.min(right, width - paddingRight - getContentInsetRight());

    if (shouldLayout(mExpandedActionView)) {
        if (isRtl) {
            right = layoutChildRight(mExpandedActionView, right, collapsingMargins, alignmentHeight);
        } else {
            left = layoutChildLeft(mExpandedActionView, left, collapsingMargins, alignmentHeight);
        }
    }

    if (shouldLayout(mLogoView)) {
        if (isRtl) {
            right = layoutChildRight(mLogoView, right, collapsingMargins, alignmentHeight);
        } else {
            left = layoutChildLeft(mLogoView, left, collapsingMargins, alignmentHeight);
        }
    }

    final boolean layoutTitle = shouldLayout(mTitleTextView);
    final boolean layoutSubtitle = shouldLayout(mSubtitleTextView);
    int titleHeight = 0;
    if (layoutTitle) {
        final LayoutParams lp = (LayoutParams) mTitleTextView.getLayoutParams();
        titleHeight += lp.topMargin + mTitleTextView.getMeasuredHeight() + lp.bottomMargin;
    }
    if (layoutSubtitle) {
        final LayoutParams lp = (LayoutParams) mSubtitleTextView.getLayoutParams();
        titleHeight += lp.topMargin + mSubtitleTextView.getMeasuredHeight() + lp.bottomMargin;
    }

    if (layoutTitle || layoutSubtitle) {
        int titleTop;
        final View topChild = layoutTitle ? mTitleTextView : mSubtitleTextView;
        final View bottomChild = layoutSubtitle ? mSubtitleTextView : mTitleTextView;
        final LayoutParams toplp = (LayoutParams) topChild.getLayoutParams();
        final LayoutParams bottomlp = (LayoutParams) bottomChild.getLayoutParams();
        final boolean titleHasWidth = layoutTitle && mTitleTextView.getMeasuredWidth() > 0
                || layoutSubtitle && mSubtitleTextView.getMeasuredWidth() > 0;

        switch (mGravity & Gravity.VERTICAL_GRAVITY_MASK) {
        case Gravity.TOP:
            titleTop = getPaddingTop() + toplp.topMargin + mTitleMarginTop;
            break;
        default:
        case Gravity.CENTER_VERTICAL:
            final int space = height - paddingTop - paddingBottom;
            int spaceAbove = (space - titleHeight) / 2;
            if (spaceAbove < toplp.topMargin + mTitleMarginTop) {
                spaceAbove = toplp.topMargin + mTitleMarginTop;
            } else {
                final int spaceBelow = height - paddingBottom - titleHeight - spaceAbove - paddingTop;
                if (spaceBelow < toplp.bottomMargin + mTitleMarginBottom) {
                    spaceAbove = Math.max(0,
                            spaceAbove - (bottomlp.bottomMargin + mTitleMarginBottom - spaceBelow));
                }
            }
            titleTop = paddingTop + spaceAbove;
            break;
        case Gravity.BOTTOM:
            titleTop = height - paddingBottom - bottomlp.bottomMargin - mTitleMarginBottom - titleHeight;
            break;
        }
        if (isRtl) {
            final int rd = (titleHasWidth ? mTitleMarginStart : 0) - collapsingMargins[1];
            right -= Math.max(0, rd);
            collapsingMargins[1] = Math.max(0, -rd);
            int titleRight = right;
            int subtitleRight = right;

            if (layoutTitle) {
                final LayoutParams lp = (LayoutParams) mTitleTextView.getLayoutParams();
                final int titleLeft = titleRight - mTitleTextView.getMeasuredWidth();
                final int titleBottom = titleTop + mTitleTextView.getMeasuredHeight();
                mTitleTextView.layout(titleLeft, titleTop, titleRight, titleBottom);
                titleRight = titleLeft - mTitleMarginEnd;
                titleTop = titleBottom + lp.bottomMargin;
            }
            if (layoutSubtitle) {
                final LayoutParams lp = (LayoutParams) mSubtitleTextView.getLayoutParams();
                titleTop += lp.topMargin;
                final int subtitleLeft = subtitleRight - mSubtitleTextView.getMeasuredWidth();
                final int subtitleBottom = titleTop + mSubtitleTextView.getMeasuredHeight();
                mSubtitleTextView.layout(subtitleLeft, titleTop, subtitleRight, subtitleBottom);
                subtitleRight = subtitleRight - mTitleMarginEnd;
                titleTop = subtitleBottom + lp.bottomMargin;
            }
            if (titleHasWidth) {
                right = Math.min(titleRight, subtitleRight);
            }
        } else {
            final int ld = (titleHasWidth ? mTitleMarginStart : 0) - collapsingMargins[0];
            left += Math.max(0, ld);
            collapsingMargins[0] = Math.max(0, -ld);
            int titleLeft = left;
            int subtitleLeft = left;

            if (layoutTitle) {
                final LayoutParams lp = (LayoutParams) mTitleTextView.getLayoutParams();
                final int titleRight = titleLeft + mTitleTextView.getMeasuredWidth();
                final int titleBottom = titleTop + mTitleTextView.getMeasuredHeight();
                mTitleTextView.layout(titleLeft, titleTop, titleRight, titleBottom);
                titleLeft = titleRight + mTitleMarginEnd;
                titleTop = titleBottom + lp.bottomMargin;
            }
            if (layoutSubtitle) {
                final LayoutParams lp = (LayoutParams) mSubtitleTextView.getLayoutParams();
                titleTop += lp.topMargin;
                final int subtitleRight = subtitleLeft + mSubtitleTextView.getMeasuredWidth();
                final int subtitleBottom = titleTop + mSubtitleTextView.getMeasuredHeight();
                mSubtitleTextView.layout(subtitleLeft, titleTop, subtitleRight, subtitleBottom);
                subtitleLeft = subtitleRight + mTitleMarginEnd;
                titleTop = subtitleBottom + lp.bottomMargin;
            }
            if (titleHasWidth) {
                left = Math.max(titleLeft, subtitleLeft);
            }
        }
    }

    // Get all remaining children sorted for layout. This is all prepared
    // such that absolute layout direction can be used below.

    addCustomViewsWithGravity(mTempViews, Gravity.LEFT);
    final int leftViewsCount = mTempViews.size();
    for (int i = 0; i < leftViewsCount; i++) {
        left = layoutChildLeft(mTempViews.get(i), left, collapsingMargins, alignmentHeight);
    }

    addCustomViewsWithGravity(mTempViews, Gravity.RIGHT);
    final int rightViewsCount = mTempViews.size();
    for (int i = 0; i < rightViewsCount; i++) {
        right = layoutChildRight(mTempViews.get(i), right, collapsingMargins, alignmentHeight);
    }

    // Centered views try to center with respect to the whole bar, but views pinned
    // to the left or right can push the mass of centered views to one side or the other.
    addCustomViewsWithGravity(mTempViews, Gravity.CENTER_HORIZONTAL);
    final int centerViewsWidth = getViewListMeasuredWidth(mTempViews, collapsingMargins);
    final int parentCenter = paddingLeft + (width - paddingLeft - paddingRight) / 2;
    final int halfCenterViewsWidth = centerViewsWidth / 2;
    int centerLeft = parentCenter - halfCenterViewsWidth;
    final int centerRight = centerLeft + centerViewsWidth;
    if (centerLeft < left) {
        centerLeft = left;
    } else if (centerRight > right) {
        centerLeft -= centerRight - right;
    }

    final int centerViewsCount = mTempViews.size();
    for (int i = 0; i < centerViewsCount; i++) {
        centerLeft = layoutChildLeft(mTempViews.get(i), centerLeft, collapsingMargins, alignmentHeight);
    }

    mTempViews.clear();
}