Example usage for android.view Gravity RIGHT

Introduction

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

Prototype

int RIGHT

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

Click Source Link

Document

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

Usage

From source file:com.view.linkedviewpager.LinkedViewPager.LinkedViewPager.java

@Override
protected void onLayout(boolean changed, int l, int t, int r, int b) {
    mInLayout = true;//from w w  w.j  a v a  2s.  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());
            }
        }
    }
    mTopPageBounds = paddingTop;
    mBottomPageBounds = height - paddingBottom;
    mDecorChildCount = decorCount;
    mFirstLayout = false;
}

---

From source file:com.huangj.huangjlibrary.widget.drawerlayout.DrawerLayout.java

@Override
protected boolean drawChild(Canvas canvas, View child, long drawingTime) {
    final int height = getHeight();
    final boolean drawingContent = isContentView(child);
    int clipLeft = 0, clipRight = getWidth();

    final int restoreCount = canvas.save();
    if (drawingContent) {
        final int childCount = getChildCount();
        for (int i = 0; i < childCount; i++) {
            final View v = getChildAt(i);
            if (v == child || v.getVisibility() != VISIBLE || !hasOpaqueBackground(v) || !isDrawerView(v)
                    || v.getHeight() < height) {
                continue;
            }//from  w  w w . j  a  va  2 s.  com

            if (checkDrawerViewAbsoluteGravity(v, Gravity.LEFT)) {
                final int vright = v.getRight();
                if (vright > clipLeft)
                    clipLeft = vright;
            } else {
                final int vleft = v.getLeft();
                if (vleft < clipRight)
                    clipRight = vleft;
            }
        }
        canvas.clipRect(clipLeft, 0, clipRight, getHeight());
    }
    final boolean result = super.drawChild(canvas, child, drawingTime);
    canvas.restoreToCount(restoreCount);

    if (mScrimOpacity > 0 && drawingContent) {
        final int baseAlpha = (mScrimColor & 0xff000000) >>> 24;
        final int imag = (int) (baseAlpha * mScrimOpacity);
        final int color = imag << 24 | (mScrimColor & 0xffffff);
        mScrimPaint.setColor(color);

        canvas.drawRect(clipLeft, 0, clipRight, getHeight(), mScrimPaint);
    } else if (mShadowLeftResolved != null && checkDrawerViewAbsoluteGravity(child, Gravity.LEFT)) {
        final int shadowWidth = mShadowLeftResolved.getIntrinsicWidth();
        final int childRight = child.getRight();
        final int drawerPeekDistance = mLeftDragger.getEdgeSize();
        final float alpha = Math.max(0, Math.min((float) childRight / drawerPeekDistance, 1.f));
        mShadowLeftResolved.setBounds(childRight, child.getTop(), childRight + shadowWidth, child.getBottom());
        mShadowLeftResolved.setAlpha((int) (0xff * alpha));
        mShadowLeftResolved.draw(canvas);
    } else if (mShadowRightResolved != null && checkDrawerViewAbsoluteGravity(child, Gravity.RIGHT)) {
        final int shadowWidth = mShadowRightResolved.getIntrinsicWidth();
        final int childLeft = child.getLeft();
        final int showing = getWidth() - childLeft;
        final int drawerPeekDistance = mRightDragger.getEdgeSize();
        final float alpha = Math.max(0, Math.min((float) showing / drawerPeekDistance, 1.f));
        mShadowRightResolved.setBounds(childLeft - shadowWidth, child.getTop(), childLeft, child.getBottom());
        mShadowRightResolved.setAlpha((int) (0xff * alpha));
        mShadowRightResolved.draw(canvas);
    }
    return result;
}

---

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 ww.ja va  2  s  . com*/
     * 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: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();

    /*//from  ww  w.  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.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:ca.co.rufus.androidboilerplate.ui.DebugDrawerLayout.java

@Override
protected void onRestoreInstanceState(Parcelable state) {
    final SavedState ss = (SavedState) state;
    super.onRestoreInstanceState(ss.getSuperState());

    if (ss.openDrawerGravity != Gravity.NO_GRAVITY) {
        final View toOpen = findDrawerWithGravity(ss.openDrawerGravity);
        if (toOpen != null) {
            openDrawer(toOpen);// www.  j  a va2 s.  co  m
        }
    }

    setDrawerLockMode(ss.lockModeLeft, Gravity.LEFT);
    setDrawerLockMode(ss.lockModeRight, Gravity.RIGHT);
}

---

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;/*from   www . j  av  a2  s . c o  m*/
    }

    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.zyk.drawerlayout.widget.DrawerLayout.java

@Override
protected void onLayout(boolean changed, int l, int t, int r, int b) {
    mInLayout = true;/*w ww.  jav  a2s.co m*/
    final int width = r - l;
    final int height = b - 1;
    final int wi = width / 4;
    final int he = height / 4;
    mLeftHeader = Math.min(mLeftHeader, wi);
    mTopHeader = Math.min(mTopHeader, he);
    mRightHeader = Math.min(mRightHeader, wi);
    mBottomHeader = Math.min(mBottomHeader, he);
    final int childCount = getChildCount();
    for (int i = 0; i < childCount; i++) {
        final View child = getChildAt(i);

        if (child.getVisibility() == GONE) {
            continue;
        }

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

        if (isContentView(child)) {
            child.layout(lp.leftMargin, lp.topMargin, lp.leftMargin + child.getMeasuredWidth(),
                    lp.topMargin + child.getMeasuredHeight());
        } else { // Drawer, if it wasn't onMeasure would have thrown an exception.
            final int childWidth = child.getMeasuredWidth();
            final int childHeight = child.getMeasuredHeight();
            int childLeft = 0;
            int childTop = 0;

            final float newOffset;
            if (checkDrawerViewAbsoluteGravity(child, Gravity.LEFT)) {
                childTop = lp.topMargin;
                if (mLeftHeader - childWidth >= child.getLeft()) {
                    childLeft = mLeftHeader - childWidth;
                    newOffset = 0;
                } else {
                    childLeft = -childWidth + (int) (childWidth * lp.onScreen);
                    newOffset = (float) (childWidth + childLeft) / childWidth;
                }
            } else if (checkDrawerViewAbsoluteGravity(child, Gravity.TOP)) {
                childLeft = lp.leftMargin;
                if (mTopHeader - childHeight >= child.getTop()) {
                    childTop = mTopHeader - childHeight;
                    newOffset = 0;
                } else {
                    childTop = -childHeight + (int) (childHeight * lp.onScreen);
                    newOffset = (float) (childTop + childHeight) / childHeight;
                }
            } else if (checkDrawerViewAbsoluteGravity(child, Gravity.RIGHT)) { // Right; onMeasure checked for us.
                childTop = lp.topMargin;
                if (width - mRightHeader >= child.getLeft()) {
                    childLeft = width - mRightHeader;
                    newOffset = 0;
                } else {
                    childLeft = width - (int) (childWidth * lp.onScreen);
                    newOffset = (float) (width - childLeft) / childWidth;
                }
            } else {
                childLeft = lp.leftMargin;
                if (height - mBottomHeader >= child.getTop()) {
                    childTop = height - mBottomHeader;
                    newOffset = 0;
                } else {
                    childTop = height - (int) (childHeight * lp.onScreen);
                    newOffset = (float) (height - childTop) / childHeight;
                }
            }

            final boolean changeOffset = newOffset != lp.onScreen;

            final int vgrav = lp.gravity & Gravity.VERTICAL_GRAVITY_MASK;
            //FIXME 
            if (vgrav == Gravity.CENTER_VERTICAL) {
                final int h = b - t;
                childTop = (h - childHeight) / 2;

                if (childTop < lp.topMargin) {
                    childTop = lp.topMargin;
                } else if (childTop + childHeight > h - lp.bottomMargin) {
                    childTop = h - lp.bottomMargin - childHeight;
                }
            }
            child.layout(childLeft, childTop, childLeft + childWidth, childTop + childHeight);

            if (changeOffset) {
                setDrawerViewOffset(child, newOffset);
            }

            //                final int newVisibility = lp.onScreen > 0 ? VISIBLE : INVISIBLE;
            //                if (child.getVisibility() != newVisibility) {
            //                    child.setVisibility(newVisibility);
            //                }
        }
    }
    mInLayout = false;
    mFirstLayout = false;
}

---

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 w  ww .  j a  v  a  2s  . 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);

            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: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;
                }/*from  ww  w  .j  a va 2 s .  c  om*/
                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:com.huangj.huangjlibrary.widget.drawerlayout.DrawerLayout.java

boolean isDrawerView(View child) {
    final int gravity = ((LayoutParams) child.getLayoutParams()).gravity;
    final int absGravity = GravityCompat.getAbsoluteGravity(gravity, ViewCompat.getLayoutDirection(child));
    if ((absGravity & Gravity.LEFT) != 0) {
        // This child is a left-edge drawer
        return true;
    }//from   w  w  w  .ja  v a  2s . co m
    if ((absGravity & Gravity.RIGHT) != 0) {
        // This child is a right-edge drawer
        return true;
    }
    return false;
}

---

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