Example usage for android.view Gravity HORIZONTAL_GRAVITY_MASK

Introduction

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

Prototype

int HORIZONTAL_GRAVITY_MASK

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

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Document

Binary mask to get the absolute horizontal gravity of a gravity.

Usage

From source file:com.abewy.android.apps.klyph.widget.KlyphDrawerLayout.java

View findDrawerWithGravity(int gravity) {
    final int childCount = getChildCount();
    for (int i = 0; i < childCount; i++) {
        final View child = getChildAt(i);
        final int childGravity = getDrawerViewGravity(child);
        if ((childGravity & Gravity.HORIZONTAL_GRAVITY_MASK) == (gravity & Gravity.HORIZONTAL_GRAVITY_MASK)) {
            return child;
        }/*w ww . java  2  s.  c  o  m*/
    }
    return null;
}

---

From source file:org.telegram.ui.ActionBar.ActionBar.java

@Override
protected void onLayout(boolean changed, int left, int top, int right, int bottom) {
    int additionalTop = occupyStatusBar ? AndroidUtilities.statusBarHeight : 0;

    int textLeft;
    if (backButtonImageView != null && backButtonImageView.getVisibility() != GONE) {
        backButtonImageView.layout(0, additionalTop, backButtonImageView.getMeasuredWidth(),
                additionalTop + backButtonImageView.getMeasuredHeight());
        textLeft = AndroidUtilities.dp(AndroidUtilities.isTablet() ? 80 : 72);
    } else {/* ww  w  .  ja  v  a 2s .c  o m*/
        textLeft = AndroidUtilities.dp(AndroidUtilities.isTablet() ? 26 : 18);
    }

    if (menu != null && menu.getVisibility() != GONE) {
        int menuLeft = isSearchFieldVisible ? AndroidUtilities.dp(AndroidUtilities.isTablet() ? 74 : 66)
                : (right - left) - menu.getMeasuredWidth();
        menu.layout(menuLeft, additionalTop, menuLeft + menu.getMeasuredWidth(),
                additionalTop + menu.getMeasuredHeight());
    }

    if (titleTextView != null && titleTextView.getVisibility() != GONE) {
        int textTop;
        if (subtitleTextView != null && subtitleTextView.getVisibility() != GONE) {
            textTop = (getCurrentActionBarHeight() / 2 - titleTextView.getTextHeight()) / 2
                    + AndroidUtilities.dp(!AndroidUtilities.isTablet() && getResources()
                            .getConfiguration().orientation == Configuration.ORIENTATION_LANDSCAPE ? 2 : 3);
        } else {
            textTop = (getCurrentActionBarHeight() - titleTextView.getTextHeight()) / 2;
        }
        titleTextView.layout(textLeft, additionalTop + textTop, textLeft + titleTextView.getMeasuredWidth(),
                additionalTop + textTop + titleTextView.getTextHeight());
    }
    if (subtitleTextView != null && subtitleTextView.getVisibility() != GONE) {
        int textTop = getCurrentActionBarHeight() / 2
                + (getCurrentActionBarHeight() / 2 - subtitleTextView.getTextHeight()) / 2
                - AndroidUtilities.dp(!AndroidUtilities.isTablet()
                        && getResources().getConfiguration().orientation == Configuration.ORIENTATION_LANDSCAPE
                                ? 1
                                : 1);
        subtitleTextView.layout(textLeft, additionalTop + textTop,
                textLeft + subtitleTextView.getMeasuredWidth(),
                additionalTop + textTop + subtitleTextView.getTextHeight());
    }

    int childCount = getChildCount();
    for (int i = 0; i < childCount; i++) {
        View child = getChildAt(i);
        if (child.getVisibility() == GONE || child == titleTextView || child == subtitleTextView
                || child == menu || child == backButtonImageView) {
            continue;
        }

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

        int width = child.getMeasuredWidth();
        int height = child.getMeasuredHeight();
        int childLeft;
        int childTop;

        int gravity = lp.gravity;
        if (gravity == -1) {
            gravity = Gravity.TOP | Gravity.LEFT;
        }

        final int absoluteGravity = gravity & Gravity.HORIZONTAL_GRAVITY_MASK;
        final int verticalGravity = gravity & Gravity.VERTICAL_GRAVITY_MASK;

        switch (absoluteGravity & Gravity.HORIZONTAL_GRAVITY_MASK) {
        case Gravity.CENTER_HORIZONTAL:
            childLeft = (right - left - width) / 2 + lp.leftMargin - lp.rightMargin;
            break;
        case Gravity.RIGHT:
            childLeft = right - width - lp.rightMargin;
            break;
        case Gravity.LEFT:
        default:
            childLeft = lp.leftMargin;
        }

        switch (verticalGravity) {
        case Gravity.TOP:
            childTop = lp.topMargin;
            break;
        case Gravity.CENTER_VERTICAL:
            childTop = (bottom - top - height) / 2 + lp.topMargin - lp.bottomMargin;
            break;
        case Gravity.BOTTOM:
            childTop = (bottom - top) - height - lp.bottomMargin;
            break;
        default:
            childTop = lp.topMargin;
        }
        child.layout(childLeft, childTop, childLeft + width, childTop + height);
    }
}

---

From source file:com.actionbarsherlock.custom.widget.DrawerLayout.java

@Override
protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
    final int widthMode = MeasureSpec.getMode(widthMeasureSpec);
    final int heightMode = MeasureSpec.getMode(heightMeasureSpec);
    final int widthSize = MeasureSpec.getSize(widthMeasureSpec);
    final int heightSize = MeasureSpec.getSize(heightMeasureSpec);

    if (widthMode != MeasureSpec.EXACTLY || heightMode != MeasureSpec.EXACTLY) {
        throw new IllegalArgumentException("DrawerLayout must be measured with MeasureSpec.EXACTLY.");
    }/*www .j  av  a2  s .c o m*/

    setMeasuredDimension(widthSize, heightSize);

    // Gravity value for each drawer we've seen. Only one of each permitted.
    int foundDrawers = 0;
    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)) {
            // Content views get measured at exactly the layout's size.
            final int contentWidthSpec = MeasureSpec.makeMeasureSpec(widthSize - lp.leftMargin - lp.rightMargin,
                    MeasureSpec.EXACTLY);
            final int contentHeightSpec = MeasureSpec
                    .makeMeasureSpec(heightSize - lp.topMargin - lp.bottomMargin, MeasureSpec.EXACTLY);
            child.measure(contentWidthSpec, contentHeightSpec);
        } else if (isDrawerView(child)) {
            final int childGravity = getDrawerViewGravity(child) & Gravity.HORIZONTAL_GRAVITY_MASK;
            if ((foundDrawers & childGravity) != 0) {
                throw new IllegalStateException(
                        "Child drawer has absolute gravity " + gravityToString(childGravity) + " but this "
                                + TAG + " already has a " + "drawer view along that edge");
            }
            final int drawerWidthSpec = getChildMeasureSpec(widthMeasureSpec,
                    mMinDrawerMargin + lp.leftMargin + lp.rightMargin, lp.width);
            final int drawerHeightSpec = getChildMeasureSpec(heightMeasureSpec, lp.topMargin + lp.bottomMargin,
                    lp.height);
            child.measure(drawerWidthSpec, drawerHeightSpec);
        } else {
            throw new IllegalStateException("Child " + child + " at index " + i
                    + " does not have a valid layout_gravity - must be Gravity.LEFT, "
                    + "Gravity.RIGHT or Gravity.NO_GRAVITY");
        }
    }
}

---

From source file:com.actionbarsherlock.custom.widget.HorizonDrawerLayout.java

@Override
protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
    final int widthMode = MeasureSpec.getMode(widthMeasureSpec);
    final int heightMode = MeasureSpec.getMode(heightMeasureSpec);
    final int widthSize = MeasureSpec.getSize(widthMeasureSpec);
    final int heightSize = MeasureSpec.getSize(heightMeasureSpec);

    if (widthMode != MeasureSpec.EXACTLY || heightMode != MeasureSpec.EXACTLY) {
        throw new IllegalArgumentException("HorizonDrawerLayout must be measured with MeasureSpec.EXACTLY.");
    }//w w w.j  a  v  a 2  s  . c om

    setMeasuredDimension(widthSize, heightSize);

    // Gravity value for each drawer we've seen. Only one of each permitted.
    int foundDrawers = 0;
    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)) {
            // Content views get measured at exactly the layout's size.
            final int contentWidthSpec = MeasureSpec.makeMeasureSpec(widthSize - lp.leftMargin - lp.rightMargin,
                    MeasureSpec.EXACTLY);
            final int contentHeightSpec = MeasureSpec
                    .makeMeasureSpec(heightSize - lp.topMargin - lp.bottomMargin, MeasureSpec.EXACTLY);
            child.measure(contentWidthSpec, contentHeightSpec);
        } else if (isDrawerView(child)) {
            final int childGravity = getDrawerViewGravity(child) & Gravity.HORIZONTAL_GRAVITY_MASK;
            if ((foundDrawers & childGravity) != 0) {
                throw new IllegalStateException(
                        "Child drawer has absolute gravity " + gravityToString(childGravity) + " but this "
                                + TAG + " already has a " + "drawer view along that edge");
            }
            final int drawerWidthSpec = getChildMeasureSpec(widthMeasureSpec,
                    mMinDrawerMargin + lp.leftMargin + lp.rightMargin, lp.width);
            final int drawerHeightSpec = getChildMeasureSpec(heightMeasureSpec, lp.topMargin + lp.bottomMargin,
                    lp.height);
            child.measure(drawerWidthSpec, drawerHeightSpec);
        } else {
            throw new IllegalStateException("Child " + child + " at index " + i
                    + " does not have a valid layout_gravity - must be Gravity.LEFT, "
                    + "Gravity.RIGHT or Gravity.NO_GRAVITY");
        }
    }
}

---

From source file:com.actionbarsherlock.custom.widget.ContentDrawerLayout.java

@Override
protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
    final int widthMode = MeasureSpec.getMode(widthMeasureSpec);
    final int heightMode = MeasureSpec.getMode(heightMeasureSpec);
    final int widthSize = MeasureSpec.getSize(widthMeasureSpec);
    final int heightSize = MeasureSpec.getSize(heightMeasureSpec);

    if (widthMode != MeasureSpec.EXACTLY || heightMode != MeasureSpec.EXACTLY) {
        throw new IllegalArgumentException("ContentDrawerLayout must be measured with MeasureSpec.EXACTLY.");
    }//from   w  w  w.j  a va 2s  .c om

    setMeasuredDimension(widthSize, heightSize);

    // Gravity value for each drawer we've seen. Only one of each permitted.
    int foundDrawers = 0;
    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)) {
            // Content views get measured at exactly the layout's size.
            final int contentWidthSpec = MeasureSpec.makeMeasureSpec(widthSize - lp.leftMargin - lp.rightMargin,
                    MeasureSpec.EXACTLY);
            final int contentHeightSpec = MeasureSpec
                    .makeMeasureSpec(heightSize - lp.topMargin - lp.bottomMargin, MeasureSpec.EXACTLY);
            child.measure(contentWidthSpec, contentHeightSpec);
        } else if (isDrawerView(child)) {
            final int childGravity = getDrawerViewGravity(child) & Gravity.HORIZONTAL_GRAVITY_MASK;
            if ((foundDrawers & childGravity) != 0) {
                throw new IllegalStateException(
                        "Child drawer has absolute gravity " + gravityToString(childGravity) + " but this "
                                + TAG + " already has a " + "drawer view along that edge");
            }
            final int drawerWidthSpec = getChildMeasureSpec(widthMeasureSpec,
                    mMinDrawerMargin + lp.leftMargin + lp.rightMargin, lp.width);
            final int drawerHeightSpec = getChildMeasureSpec(heightMeasureSpec, lp.topMargin + lp.bottomMargin,
                    lp.height);
            child.measure(drawerWidthSpec, drawerHeightSpec);
        } else {
            throw new IllegalStateException("Child " + child + " at index " + i
                    + " does not have a valid layout_gravity - must be Gravity.LEFT, "
                    + "Gravity.RIGHT or Gravity.NO_GRAVITY");
        }
    }
}

---

From source file:com.lansun.qmyo.view.DrawerLayout.java

@Override
protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
    final int widthMode = MeasureSpec.getMode(widthMeasureSpec);
    final int heightMode = MeasureSpec.getMode(heightMeasureSpec);
    final int widthSize = MeasureSpec.getSize(widthMeasureSpec);
    final int heightSize = MeasureSpec.getSize(heightMeasureSpec);

    if (widthMode != MeasureSpec.EXACTLY || heightMode != MeasureSpec.EXACTLY) {
    }/* www. j a v  a2  s. c  om*/

    setMeasuredDimension(widthSize, heightSize);

    // Gravity value for each drawer we've seen. Only one of each permitted.
    int foundDrawers = 0;
    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)) {
            // Content views get measured at exactly the layout's size.
            final int contentWidthSpec = MeasureSpec.makeMeasureSpec(widthSize - lp.leftMargin - lp.rightMargin,
                    MeasureSpec.EXACTLY);
            final int contentHeightSpec = MeasureSpec
                    .makeMeasureSpec(heightSize - lp.topMargin - lp.bottomMargin, MeasureSpec.EXACTLY);
            child.measure(contentWidthSpec, contentHeightSpec);
        } else if (isDrawerView(child)) {
            final int childGravity = getDrawerViewGravity(child) & Gravity.HORIZONTAL_GRAVITY_MASK;
            if ((foundDrawers & childGravity) != 0) {
                throw new IllegalStateException(
                        "Child drawer has absolute gravity " + gravityToString(childGravity) + " but this "
                                + TAG + " already has a " + "drawer view along that edge");
            }
            final int drawerWidthSpec = getChildMeasureSpec(widthMeasureSpec,
                    mMinDrawerMargin + lp.leftMargin + lp.rightMargin, lp.width);
            final int drawerHeightSpec = getChildMeasureSpec(heightMeasureSpec, lp.topMargin + lp.bottomMargin,
                    lp.height);
            child.measure(drawerWidthSpec, drawerHeightSpec);
        } else {
            throw new IllegalStateException("Child " + child + " at index " + i
                    + " does not have a valid layout_gravity - must be Gravity.LEFT, "
                    + "Gravity.RIGHT or Gravity.NO_GRAVITY");
        }
    }
}

---

From source file:edu.mecc.race2ged.navigation.DrawerLayout.java

@Override
protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
    int widthMode = MeasureSpec.getMode(widthMeasureSpec);
    int heightMode = MeasureSpec.getMode(heightMeasureSpec);
    int widthSize = MeasureSpec.getSize(widthMeasureSpec);
    int heightSize = MeasureSpec.getSize(heightMeasureSpec);

    if (widthMode != MeasureSpec.EXACTLY || heightMode != MeasureSpec.EXACTLY) {
        if (isInEditMode()) {
            // Don't crash the layout editor. Consume all of the space if specified
            // or pick a magic number from thin air otherwise.
            // It will crash on a real device.
            if (widthMode == MeasureSpec.AT_MOST) {
                widthMode = MeasureSpec.EXACTLY;
            } else if (widthMode == MeasureSpec.UNSPECIFIED) {
                widthMode = MeasureSpec.EXACTLY;
                widthSize = 300;/*from   ww w  .  j ava 2s  .c  o m*/
            }
            if (heightMode == MeasureSpec.AT_MOST) {
                heightMode = MeasureSpec.EXACTLY;
            } else if (heightMode == MeasureSpec.UNSPECIFIED) {
                heightMode = MeasureSpec.EXACTLY;
                heightSize = 300;
            }
        } else {
            throw new IllegalArgumentException("DrawerLayout must be measured with MeasureSpec.EXACTLY.");
        }
    }

    setMeasuredDimension(widthSize, heightSize);

    // Gravity value for each drawer we've seen. Only one of each permitted.
    int foundDrawers = 0;
    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)) {
            // Content views get measured at exactly the layout's size.
            final int contentWidthSpec = MeasureSpec.makeMeasureSpec(widthSize - lp.leftMargin - lp.rightMargin,
                    MeasureSpec.EXACTLY);
            final int contentHeightSpec = MeasureSpec
                    .makeMeasureSpec(heightSize - lp.topMargin - lp.bottomMargin, MeasureSpec.EXACTLY);
            child.measure(contentWidthSpec, contentHeightSpec);
        } else if (isDrawerView(child)) {
            final int childGravity = getDrawerViewGravity(child) & Gravity.HORIZONTAL_GRAVITY_MASK;
            if ((foundDrawers & childGravity) != 0) {
                throw new IllegalStateException(
                        "Child drawer has absolute gravity " + gravityToString(childGravity) + " but this "
                                + TAG + " already has a " + "drawer view along that edge");
            }
            final int drawerWidthSpec = getChildMeasureSpec(widthMeasureSpec,
                    mMinDrawerMargin + lp.leftMargin + lp.rightMargin, lp.width);
            final int drawerHeightSpec = getChildMeasureSpec(heightMeasureSpec, lp.topMargin + lp.bottomMargin,
                    lp.height);
            child.measure(drawerWidthSpec, drawerHeightSpec);
        } else {
            throw new IllegalStateException("Child " + child + " at index " + i
                    + " does not have a valid layout_gravity - must be Gravity.LEFT, "
                    + "Gravity.RIGHT or Gravity.NO_GRAVITY");
        }
    }
}

---

From source file:com.abewy.android.apps.klyph.widget.KlyphDrawerLayout.java

@Override
protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
    int widthMode = MeasureSpec.getMode(widthMeasureSpec);
    int heightMode = MeasureSpec.getMode(heightMeasureSpec);
    int widthSize = MeasureSpec.getSize(widthMeasureSpec);
    int heightSize = MeasureSpec.getSize(heightMeasureSpec);

    if (widthMode != MeasureSpec.EXACTLY || heightMode != MeasureSpec.EXACTLY) {
        if (isInEditMode()) {
            // Don't crash the layout editor. Consume all of the space if specified
            // or pick a magic number from thin air otherwise.
            // TODO Better communication with tools of this bogus state.
            // It will crash on a real device.
            if (widthMode == MeasureSpec.AT_MOST) {
                widthMode = MeasureSpec.EXACTLY;
            } else if (widthMode == MeasureSpec.UNSPECIFIED) {
                widthMode = MeasureSpec.EXACTLY;
                widthSize = 300;// w  w w.j a  va2s .  c o  m
            }
            if (heightMode == MeasureSpec.AT_MOST) {
                heightMode = MeasureSpec.EXACTLY;
            } else if (heightMode == MeasureSpec.UNSPECIFIED) {
                heightMode = MeasureSpec.EXACTLY;
                heightSize = 300;
            }
        } else {
            throw new IllegalArgumentException("DrawerLayout must be measured with MeasureSpec.EXACTLY.");
        }
    }

    setMeasuredDimension(widthSize, heightSize);

    // Gravity value for each drawer we've seen. Only one of each permitted.
    int foundDrawers = 0;
    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)) {
            // Content views get measured at exactly the layout's size.
            final int contentWidthSpec = MeasureSpec.makeMeasureSpec(widthSize - lp.leftMargin - lp.rightMargin,
                    MeasureSpec.EXACTLY);
            final int contentHeightSpec = MeasureSpec
                    .makeMeasureSpec(heightSize - lp.topMargin - lp.bottomMargin, MeasureSpec.EXACTLY);
            child.measure(contentWidthSpec, contentHeightSpec);
        } else if (isDrawerView(child)) {
            final int childGravity = getDrawerViewGravity(child) & Gravity.HORIZONTAL_GRAVITY_MASK;
            if ((foundDrawers & childGravity) != 0) {
                throw new IllegalStateException(
                        "Child drawer has absolute gravity " + gravityToString(childGravity) + " but this "
                                + TAG + " already has a " + "drawer view along that edge");
            }
            final int drawerWidthSpec = getChildMeasureSpec(widthMeasureSpec,
                    mMinDrawerMargin + lp.leftMargin + lp.rightMargin, lp.width);
            final int drawerHeightSpec = getChildMeasureSpec(heightMeasureSpec, lp.topMargin + lp.bottomMargin,
                    lp.height);
            child.measure(drawerWidthSpec, drawerHeightSpec);
        } else {
            throw new IllegalStateException("Child " + child + " at index " + i
                    + " does not have a valid layout_gravity - must be Gravity.LEFT, "
                    + "Gravity.RIGHT or Gravity.NO_GRAVITY");
        }
    }
}

---

From source file:com.cyanogenmod.filemanager.ui.widgets.DrawerLayout.java

@Override
protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
    int widthMode = MeasureSpec.getMode(widthMeasureSpec);
    int heightMode = MeasureSpec.getMode(heightMeasureSpec);
    int widthSize = MeasureSpec.getSize(widthMeasureSpec);
    int heightSize = MeasureSpec.getSize(heightMeasureSpec);

    if (widthMode != MeasureSpec.EXACTLY || heightMode != MeasureSpec.EXACTLY) {
        if (isInEditMode()) {
            // Don't crash the layout editor. Consume all of the space if specified
            // or pick a magic number from thin air otherwise.
            // TODO Better communication with tools of this bogus state.
            // It will crash on a real device.
            if (widthMode == MeasureSpec.AT_MOST) {
                widthMode = MeasureSpec.EXACTLY;
            } else if (widthMode == MeasureSpec.UNSPECIFIED) {
                widthMode = MeasureSpec.EXACTLY;
                widthSize = 300;//from w w w.  j  a  v  a2  s .c o  m
            }
            if (heightMode == MeasureSpec.AT_MOST) {
                heightMode = MeasureSpec.EXACTLY;
            } else if (heightMode == MeasureSpec.UNSPECIFIED) {
                heightMode = MeasureSpec.EXACTLY;
                heightSize = 300;
            }
        } else {
            throw new IllegalArgumentException("DrawerLayout must be measured with MeasureSpec.EXACTLY.");
        }
    }

    setMeasuredDimension(widthSize, heightSize);

    // Gravity value for each drawer we've seen. Only one of each permitted.
    int foundDrawers = 0;
    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)) {
            // Content views get measured at exactly the layout's size.
            final int contentWidthSpec = MeasureSpec.makeMeasureSpec(widthSize - lp.leftMargin - lp.rightMargin,
                    MeasureSpec.EXACTLY);
            final int contentHeightSpec = MeasureSpec
                    .makeMeasureSpec(heightSize - lp.topMargin - lp.bottomMargin, MeasureSpec.EXACTLY);
            child.measure(contentWidthSpec, contentHeightSpec);
        } else if (isDrawerView(child)) {
            final int childGravity = getDrawerViewAbsoluteGravity(child) & Gravity.HORIZONTAL_GRAVITY_MASK;
            if ((foundDrawers & childGravity) != 0) {
                throw new IllegalStateException(
                        "Child drawer has absolute gravity " + gravityToString(childGravity) + " but this "
                                + TAG + " already has a " + "drawer view along that edge");
            }
            final int drawerWidthSpec = getChildMeasureSpec(widthMeasureSpec,
                    mMinDrawerMargin + lp.leftMargin + lp.rightMargin, lp.width);
            final int drawerHeightSpec = getChildMeasureSpec(heightMeasureSpec, lp.topMargin + lp.bottomMargin,
                    lp.height);
            child.measure(drawerWidthSpec, drawerHeightSpec);
        } else {
            throw new IllegalStateException("Child " + child + " at index " + i
                    + " does not have a valid layout_gravity - must be Gravity.LEFT, "
                    + "Gravity.RIGHT or Gravity.NO_GRAVITY");
        }
    }
}

---

From source file:com.popofibo.weatherpop.custom.DrawerLayout.java

@Override
protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
    int widthMode = MeasureSpec.getMode(widthMeasureSpec);
    int heightMode = MeasureSpec.getMode(heightMeasureSpec);
    int widthSize = MeasureSpec.getSize(widthMeasureSpec);
    int heightSize = MeasureSpec.getSize(heightMeasureSpec);

    if (widthMode != MeasureSpec.EXACTLY || heightMode != MeasureSpec.EXACTLY) {
        if (isInEditMode()) {
            // Don't crash the layout editor. Consume all of the space if
            // specified
            // or pick a magic number from thin air otherwise.
            // TODO Better communication with tools of this bogus state.
            // It will crash on a real device.
            if (widthMode == MeasureSpec.AT_MOST) {
                widthMode = MeasureSpec.EXACTLY;
            } else if (widthMode == MeasureSpec.UNSPECIFIED) {
                widthMode = MeasureSpec.EXACTLY;
                widthSize = 300;/* w w  w .  ja  va  2  s  .  co m*/
            }
            if (heightMode == MeasureSpec.AT_MOST) {
                heightMode = MeasureSpec.EXACTLY;
            } else if (heightMode == MeasureSpec.UNSPECIFIED) {
                heightMode = MeasureSpec.EXACTLY;
                heightSize = 300;
            }
        } else {
            throw new IllegalArgumentException("DrawerLayout must be measured with MeasureSpec.EXACTLY.");
        }
    }

    setMeasuredDimension(widthSize, heightSize);

    // Gravity value for each drawer we've seen. Only one of each permitted.
    int foundDrawers = 0;
    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)) {
            // Content views get measured at exactly the layout's size.
            final int contentWidthSpec = MeasureSpec.makeMeasureSpec(widthSize - lp.leftMargin - lp.rightMargin,
                    MeasureSpec.EXACTLY);
            final int contentHeightSpec = MeasureSpec
                    .makeMeasureSpec(heightSize - lp.topMargin - lp.bottomMargin, MeasureSpec.EXACTLY);
            child.measure(contentWidthSpec, contentHeightSpec);
        } else if (isDrawerView(child)) {
            final int childGravity = getDrawerViewGravity(child) & Gravity.HORIZONTAL_GRAVITY_MASK;
            if ((foundDrawers & childGravity) != 0) {
                throw new IllegalStateException(
                        "Child drawer has absolute gravity " + gravityToString(childGravity) + " but this "
                                + TAG + " already has a " + "drawer view along that edge");
            }
            final int drawerWidthSpec = getChildMeasureSpec(widthMeasureSpec,
                    mMinDrawerMargin + lp.leftMargin + lp.rightMargin, lp.width);
            final int drawerHeightSpec = getChildMeasureSpec(heightMeasureSpec, lp.topMargin + lp.bottomMargin,
                    lp.height);
            child.measure(drawerWidthSpec, drawerHeightSpec);
        } else {
            throw new IllegalStateException("Child " + child + " at index " + i
                    + " does not have a valid layout_gravity - must be Gravity.LEFT, "
                    + "Gravity.RIGHT or Gravity.NO_GRAVITY");
        }
    }
}

---

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