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  3. android.view.View.MeasureSpec

Java 类android.view.View.MeasureSpec 实例源码

项目：GitHub    文件：OnePlusNLayoutHelper.java    
private int handleHeader(LayoutStateWrapper layoutState, LayoutChunkResult result, LayoutManagerHelper helper,
    boolean layoutInVertical, int parentWidth, int parentHeight, int parentHPadding, int parentVPadding) {
    if (mHeader == null) {
        return 0;
    }
    OrientationHelperEx orientationHelper = helper.getMainOrientationHelper();

    final ViewGroup.MarginLayoutParams lp = new ViewGroup.MarginLayoutParams(
        mHeader.getLayoutParams());

    // fill width
    int widthSpec = helper.getChildMeasureSpec(parentWidth - parentHPadding,
        layoutInVertical ? MATCH_PARENT : lp.width, !layoutInVertical);
    int heightSpec = helper.getChildMeasureSpec(parentHeight - parentVPadding,
        layoutInVertical ? lp.height : MeasureSpec.EXACTLY, layoutInVertical);
    helper.measureChildWithMargins(mHeader, widthSpec, heightSpec);
    return orientationHelper.getDecoratedMeasurement(mHeader);
}
项目：RNLearn_Project1    文件：FlatNativeViewHierarchyManager.java    
/**
 * Updates View bounds, possibly re-measuring and re-layouting it if the size changed.
 *
 * @param reactTag reactTag to lookup a View by
 * @param left left coordinate relative to parent
 * @param top top coordinate relative to parent
 * @param right right coordinate relative to parent
 * @param bottom bottom coordinate relative to parent
 */
/* package */ void updateViewBounds(int reactTag, int left, int top, int right, int bottom) {
  View view = resolveView(reactTag);
  int width = right - left;
  int height = bottom - top;
  if (view.getWidth() != width || view.getHeight() != height) {
    // size changed, we need to measure and layout the View
    view.measure(
        MeasureSpec.makeMeasureSpec(width, MeasureSpec.EXACTLY),
        MeasureSpec.makeMeasureSpec(height, MeasureSpec.EXACTLY));
    view.layout(left, top, right, bottom);
  } else {
    // same size, only location changed, there is a faster route.
    view.offsetLeftAndRight(left - view.getLeft());
    view.offsetTopAndBottom(top - view.getTop());
  }
}
项目：boohee_v5.6    文件：TabPageIndicator.java    
public void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
    int widthMode = MeasureSpec.getMode(widthMeasureSpec);
    boolean lockedExpanded = widthMode == 1073741824;
    setFillViewport(lockedExpanded);
    int childCount = this.mTabLayout.getChildCount();
    if (childCount <= 1 || !(widthMode == 1073741824 || widthMode == Integer.MIN_VALUE)) {
        this.mMaxTabWidth = -1;
    } else if (childCount > 2) {
        this.mMaxTabWidth = (int) (((float) MeasureSpec.getSize(widthMeasureSpec)) * 0.4f);
    } else {
        this.mMaxTabWidth = MeasureSpec.getSize(widthMeasureSpec) / 2;
    }
    int oldWidth = getMeasuredWidth();
    super.onMeasure(widthMeasureSpec, heightMeasureSpec);
    int newWidth = getMeasuredWidth();
    if (lockedExpanded && oldWidth != newWidth) {
        setCurrentItem(this.mSelectedTabIndex);
    }
}
项目：Rxjava2.0Demo    文件：RefreshContentWrapper.java    
protected static int measureViewHeight(View view) {
    ViewGroup.LayoutParams p = view.getLayoutParams();
    if (p == null) {
        p = new ViewGroup.LayoutParams(MATCH_PARENT,WRAP_CONTENT);
    }
    int childHeightSpec;
    int childWidthSpec = ViewGroup.getChildMeasureSpec(0, 0, p.width);
    if (p.height > 0) {
        childHeightSpec = MeasureSpec.makeMeasureSpec(p.height, MeasureSpec.EXACTLY);
    } else {
        childHeightSpec = MeasureSpec.makeMeasureSpec(0, MeasureSpec.UNSPECIFIED);
    }
    view.measure(childWidthSpec, childHeightSpec);
    return view.getMeasuredHeight();
}
项目：boohee_v5.6    文件：BooheeTabLayout.java    
public void setupChild(List<TabModelInterface> list) {
    if (list != null && list.size() != 0) {
        this.mTabList.clear();
        this.mTabList.addAll(list);
        this.tabStrip.removeAllViews();
        for (TabModelInterface model : list) {
            TextView textView = new TextView(getContext());
            textView.setGravity(17);
            textView.setText(model.getTabName());
            textView.setTextColor(getResources().getColor(R.color.du));
            textView.setTextSize(0, this.textSize);
            LayoutParams params = new LayoutParams(-2, -1);
            textView.setPadding(ViewUtils.dip2px(getContext(), 16.0f), 0, ViewUtils.dip2px
                    (getContext(), 16.0f), 0);
            textView.setOnClickListener(new InternalTabClickListener());
            this.tabStrip.addView(textView, params);
            textView.measure(MeasureSpec.makeMeasureSpec(0, 0), MeasureSpec.makeMeasureSpec
                    (0, 0));
        }
        initView();
    }
}
项目：vlayout    文件：OnePlusNLayoutHelper.java    
private int handleHeader(View header, LayoutStateWrapper layoutState, LayoutChunkResult result, LayoutManagerHelper helper,
    boolean layoutInVertical, int parentWidth, int parentHeight, int parentHPadding, int parentVPadding) {
    if (header == null) {
        return 0;
    }
    OrientationHelperEx orientationHelper = helper.getMainOrientationHelper();

    final ViewGroup.MarginLayoutParams lp = new ViewGroup.MarginLayoutParams(
        header.getLayoutParams());

    // fill width
    int widthSpec = helper.getChildMeasureSpec(parentWidth - parentHPadding,
        layoutInVertical ? MATCH_PARENT : lp.width, !layoutInVertical);
    int heightSpec = helper.getChildMeasureSpec(parentHeight - parentVPadding,
        layoutInVertical ? lp.height : MeasureSpec.EXACTLY, layoutInVertical);
    helper.measureChildWithMargins(header, widthSpec, heightSpec);
    return orientationHelper.getDecoratedMeasurement(header);
}
项目：vlayout    文件：OnePlusNLayoutHelper.java    
private int handleFooter(View footer, LayoutStateWrapper layoutState, LayoutChunkResult result, LayoutManagerHelper helper,
    boolean layoutInVertical, int parentWidth, int parentHeight, int parentHPadding, int parentVPadding) {
    if (footer == null) {
        return 0;
    }

    OrientationHelperEx orientationHelper = helper.getMainOrientationHelper();

    final ViewGroup.MarginLayoutParams lp = new ViewGroup.MarginLayoutParams(
        footer.getLayoutParams());

    // fill width
    int widthSpec = helper.getChildMeasureSpec(parentWidth - parentHPadding,
        layoutInVertical ? MATCH_PARENT : lp.width, !layoutInVertical);
    int heightSpec = helper.getChildMeasureSpec(parentHeight - parentVPadding,
        layoutInVertical ? lp.height : MeasureSpec.EXACTLY, layoutInVertical);
    helper.measureChildWithMargins(footer, widthSpec, heightSpec);
    return orientationHelper.getDecoratedMeasurement(footer);
}
项目：Hotspot-master-devp    文件：TouchImageView.java    
@Override
protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
    super.onMeasure(widthMeasureSpec, heightMeasureSpec);
    width = MeasureSpec.getSize(widthMeasureSpec);
    height = MeasureSpec.getSize(heightMeasureSpec);
    // Fit to screen.
    float scale;
    float scaleX = width / bmWidth;
    float scaleY = height / bmHeight;
    scale = Math.min(scaleX, scaleY);
    matrix.setScale(scale, scale);
    // minScale = scale;
    setImageMatrix(matrix);
    saveScale = 1f;

    // Center the image
    redundantYSpace = height - (scale * bmHeight);
    redundantXSpace = width - (scale * bmWidth);
    redundantYSpace /= (float) 2;
    redundantXSpace /= (float) 2;

    matrix.postTranslate(redundantXSpace, redundantYSpace);

    origWidth = width - 2 * redundantXSpace;
    origHeight = height - 2 * redundantYSpace;
    calcPadding();
    setImageMatrix(matrix);
}
项目：Virtualview-Android    文件：GridLayout.java    
private int getRealWidth(int mode, int size) {
    int ret = size;
    if (View.MeasureSpec.AT_MOST == mode) {
        int childrenWidth = 0;
        Params p = (Params) mParams;

        childrenWidth = mPaddingLeft + mPaddingRight;
        int count = 0;
        for (ViewBase child : mSubViews) {
            childrenWidth += child.getComMeasuredWidthWithMargin();
            if (++count >= mColCount) {
                break;
            } else {
                childrenWidth += mItemHorizontalMargin;
            }
        }

        ret = Math.min(size, childrenWidth);
    } else if (View.MeasureSpec.EXACTLY == mode) {
        ret = size;
    } else {
        Log.e(TAG, "getRealWidth error mode:" + mode);
    }

    return ret;
}
项目：boohee_v5.6    文件：BitmapUtil.java    
public static Bitmap loadBitmapFromView(View v) {
    if (v.getMeasuredHeight() > 0) {
        return null;
    }
    v.measure(MeasureSpec.makeMeasureSpec((int) DensityUtil.getScreenWidth(v.getContext()),
            1073741824), MeasureSpec.makeMeasureSpec(0, 0));
    Bitmap b = Bitmap.createBitmap(v.getMeasuredWidth(), v.getMeasuredHeight(), Config
            .ARGB_8888);
    Canvas c = new Canvas(b);
    v.layout(0, 0, v.getMeasuredWidth(), v.getMeasuredHeight());
    v.draw(c);
    return b;
}
项目：chromium-for-android-56-debug-video    文件：DataReductionPromoView.java    
@Override
protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
    int width = MeasureSpec.getSize(widthMeasureSpec);
    int height = MeasureSpec.getSize(heightMeasureSpec);

    if (width >= 2 * mIllustration.getWidth() && width > height) {
        mPromoContent.setOrientation(LinearLayout.HORIZONTAL);
        setMaxChildWidth(mMaxChildWidthHorizontal);
        ApiCompatibilityUtils.setPaddingRelative(
                mIllustration, 0, 0, mIllustrationPaddingSide, 0);
    } else {
        mPromoContent.setOrientation(LinearLayout.VERTICAL);
        setMaxChildWidth(mMaxChildWidth);
        mIllustration.setPadding(0, 0, 0, mIllustrationPaddingBottom);
    }

    setMaxChildHeight(height - mFrameHeightMargin);
    super.onMeasure(widthMeasureSpec, heightMeasureSpec);
}
项目：chromium-for-android-56-debug-video    文件：TextBubble.java    
private void measureContentView() {
    View rootView = mAnchorView.getRootView();
    getBackground().getPadding(mCachedPaddingRect);

    // The maximum width of the bubble is determined by how wide the root view is.
    int maxContentWidth =
            rootView.getWidth() - mCachedPaddingRect.left - mCachedPaddingRect.right;

    // The maximum height of the bubble is determined by the available space below the anchor.
    int anchorYOverlap = (int) -(mYOverlapPercentage * mAnchorView.getHeight());
    int maxContentHeight = getMaxAvailableHeight(mAnchorView, anchorYOverlap)
            - mCachedPaddingRect.top - mCachedPaddingRect.bottom;

    int contentWidthSpec = MeasureSpec.makeMeasureSpec(maxContentWidth, MeasureSpec.AT_MOST);
    int contentHeightSpec = MeasureSpec.makeMeasureSpec(maxContentHeight, MeasureSpec.AT_MOST);
    mContentView.measure(contentWidthSpec, contentHeightSpec);
}
项目：boohee_v5.6    文件：ActionMenuItemView.java    
protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
    boolean textVisible = hasText();
    if (textVisible && this.mSavedPaddingLeft >= 0) {
        super.setPadding(this.mSavedPaddingLeft, getPaddingTop(), getPaddingRight(), getPaddingBottom());
    }
    super.onMeasure(widthMeasureSpec, heightMeasureSpec);
    int widthMode = MeasureSpec.getMode(widthMeasureSpec);
    int widthSize = MeasureSpec.getSize(widthMeasureSpec);
    int oldMeasuredWidth = getMeasuredWidth();
    int targetWidth = widthMode == Integer.MIN_VALUE ? Math.min(widthSize, this.mMinWidth) : this.mMinWidth;
    if (widthMode != 1073741824 && this.mMinWidth > 0 && oldMeasuredWidth < targetWidth) {
        super.onMeasure(MeasureSpec.makeMeasureSpec(targetWidth, 1073741824), heightMeasureSpec);
    }
    if (!textVisible && this.mIcon != null) {
        super.setPadding((getMeasuredWidth() - this.mIcon.getBounds().width()) / 2, getPaddingTop(), getPaddingRight(), getPaddingBottom());
    }
}
项目：letv    文件：HListView.java    
private void measureScrapChildWidth(View child, int position, int heightMeasureSpec) {
    int childWidthSpec;
    LayoutParams p = (LayoutParams) child.getLayoutParams();
    if (p == null) {
        p = (LayoutParams) generateDefaultLayoutParams();
        child.setLayoutParams(p);
    }
    p.viewType = this.mAdapter.getItemViewType(position);
    p.forceAdd = true;
    int childHeightSpec = ViewGroup.getChildMeasureSpec(heightMeasureSpec, this.mListPadding.top + this.mListPadding.bottom, p.height);
    int lpWidth = p.width;
    if (lpWidth > 0) {
        childWidthSpec = MeasureSpec.makeMeasureSpec(lpWidth, 1073741824);
    } else {
        childWidthSpec = MeasureSpec.makeMeasureSpec(0, 0);
    }
    child.measure(childWidthSpec, childHeightSpec);
}
项目：letv    文件：TabPageIndicator.java    
public void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
    int widthMode = MeasureSpec.getMode(widthMeasureSpec);
    boolean lockedExpanded = widthMode == 1073741824;
    setFillViewport(lockedExpanded);
    int childCount = this.mTabLayout.getChildCount();
    if (childCount <= 1 || !(widthMode == 1073741824 || widthMode == Integer.MIN_VALUE)) {
        this.mMaxTabWidth = -1;
    } else if (childCount > 2) {
        this.mMaxTabWidth = (int) (((float) MeasureSpec.getSize(widthMeasureSpec)) * 0.4f);
    } else {
        this.mMaxTabWidth = MeasureSpec.getSize(widthMeasureSpec) / 2;
    }
    int oldWidth = getMeasuredWidth();
    super.onMeasure(widthMeasureSpec, heightMeasureSpec);
    int newWidth = getMeasuredWidth();
    if (lockedExpanded && oldWidth != newWidth) {
        setCurrentItem(this.mSelectedTabIndex);
    }
}
项目：boohee_v5.6    文件：RecyclerView.java    
@Deprecated
public static int getChildMeasureSpec(int parentSize, int padding, int childDimension, boolean canScroll) {
    int size = Math.max(0, parentSize - padding);
    int resultSize = 0;
    int resultMode = 0;
    if (canScroll) {
        if (childDimension >= 0) {
            resultSize = childDimension;
            resultMode = 1073741824;
        } else {
            resultSize = 0;
            resultMode = 0;
        }
    } else if (childDimension >= 0) {
        resultSize = childDimension;
        resultMode = 1073741824;
    } else if (childDimension == -1) {
        resultSize = size;
        resultMode = 1073741824;
    } else if (childDimension == -2) {
        resultSize = size;
        resultMode = Integer.MIN_VALUE;
    }
    return MeasureSpec.makeMeasureSpec(resultSize, resultMode);
}
项目：boohee_v5.6    文件：NineGridLayout.java    
protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
    super.onMeasure(widthMeasureSpec, heightMeasureSpec);
    int widthMode = MeasureSpec.getMode(widthMeasureSpec);
    int heightMode = MeasureSpec.getMode(heightMeasureSpec);
    int sizeWidth = MeasureSpec.getSize(widthMeasureSpec);
    int sizeHeight = MeasureSpec.getSize(heightMeasureSpec);
    this.totalWidth = (sizeWidth - getPaddingLeft()) - getPaddingRight();
    if (this.listData != null && this.listData.size() > 0) {
        if (this.listData.size() != 1) {
            this.singleWidth = (this.totalWidth - (this.gap * 2)) / 3;
            this.singleHeight = this.singleWidth;
        } else if (this.isSmallScreen) {
            this.singleWidth = this.defaultWidth;
            this.singleHeight = this.defaultHeight;
        } else {
            this.singleWidth = ((Photo) this.listData.get(0)).preview_width;
            this.singleHeight = ((Photo) this.listData.get(0)).preview_height;
        }
        measureChildren(MeasureSpec.makeMeasureSpec(this.singleWidth, 1073741824),
                MeasureSpec.makeMeasureSpec(this.singleHeight, 1073741824));
        int measureWidth = (this.singleWidth * this.columns) + (this.gap * (this.columns - 1));
        setMeasuredDimension(sizeWidth, (this.singleHeight * this.rows) + (this.gap * (this
                .rows - 1)));
    }
}
项目：letv    文件：RecyclerView.java    
private static boolean isMeasurementUpToDate(int childSize, int spec, int dimension) {
    int specMode = MeasureSpec.getMode(spec);
    int specSize = MeasureSpec.getSize(spec);
    if (dimension > 0 && childSize != dimension) {
        return false;
    }
    switch (specMode) {
        case Integer.MIN_VALUE:
            if (specSize < childSize) {
                return false;
            }
            return true;
        case 0:
            return true;
        case 1073741824:
            if (specSize != childSize) {
                return false;
            }
            return true;
        default:
            return false;
    }
}
项目：boohee_v5.6    文件：TitlePageIndicator.java    
protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
    float height;
    int measuredWidth = MeasureSpec.getSize(widthMeasureSpec);
    if (MeasureSpec.getMode(heightMeasureSpec) == 1073741824) {
        height = (float) MeasureSpec.getSize(heightMeasureSpec);
    } else {
        this.mBounds.setEmpty();
        this.mBounds.bottom = (int) (this.mPaintText.descent() - this.mPaintText.ascent());
        height = ((((float) (this.mBounds.bottom - this.mBounds.top)) + this
                .mFooterLineHeight) + this.mFooterPadding) + this.mTopPadding;
        if (this.mFooterIndicatorStyle != IndicatorStyle.None) {
            height += this.mFooterIndicatorHeight;
        }
    }
    setMeasuredDimension(measuredWidth, (int) height);
}
项目：letv    文件：PagerTitleStrip.java    
protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
    if (MeasureSpec.getMode(widthMeasureSpec) != 1073741824) {
        throw new IllegalStateException("Must measure with an exact width");
    }
    int height;
    int heightPadding = getPaddingTop() + getPaddingBottom();
    int childHeightSpec = getChildMeasureSpec(heightMeasureSpec, heightPadding, -2);
    int widthSize = MeasureSpec.getSize(widthMeasureSpec);
    int childWidthSpec = getChildMeasureSpec(widthMeasureSpec, (int) (((float) widthSize) * 0.2f), -2);
    this.mPrevText.measure(childWidthSpec, childHeightSpec);
    this.mCurrText.measure(childWidthSpec, childHeightSpec);
    this.mNextText.measure(childWidthSpec, childHeightSpec);
    if (MeasureSpec.getMode(heightMeasureSpec) == 1073741824) {
        height = MeasureSpec.getSize(heightMeasureSpec);
    } else {
        height = Math.max(getMinHeight(), this.mCurrText.getMeasuredHeight() + heightPadding);
    }
    setMeasuredDimension(widthSize, ViewCompat.resolveSizeAndState(height, heightMeasureSpec, ViewCompat.getMeasuredState(this.mCurrText) << 16));
}
项目：AndroidRTC    文件：SurfaceViewRendererOnMeasureTest.java    
/**
 * Assert onMeasure() with given parameters will result in expected measured size.
 */
@SuppressLint("WrongCall")
private static void assertMeasuredSize(SurfaceViewRenderer surfaceViewRenderer,
    RendererCommon.ScalingType scalingType, String frameDimensions, int expectedWidth,
    int expectedHeight, int widthSpec, int heightSpec) {
  surfaceViewRenderer.setScalingType(scalingType);
  surfaceViewRenderer.onMeasure(widthSpec, heightSpec);
  final int measuredWidth = surfaceViewRenderer.getMeasuredWidth();
  final int measuredHeight = surfaceViewRenderer.getMeasuredHeight();
  if (measuredWidth != expectedWidth || measuredHeight != expectedHeight) {
    fail("onMeasure(" + MeasureSpec.toString(widthSpec) + ", " + MeasureSpec.toString(heightSpec)
        + ")"
        + " with scaling type " + scalingType + " and frame: " + frameDimensions
        + " expected measured size " + expectedWidth + "x" + expectedHeight + ", but was "
        + measuredWidth + "x" + measuredHeight);
  }
}
项目：letv    文件：SwipeRefreshLayout.java    
public void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
    super.onMeasure(widthMeasureSpec, heightMeasureSpec);
    if (this.mTarget == null) {
        ensureTarget();
    }
    if (this.mTarget != null) {
        this.mTarget.measure(MeasureSpec.makeMeasureSpec((getMeasuredWidth() - getPaddingLeft()) - getPaddingRight(), 1073741824), MeasureSpec.makeMeasureSpec((getMeasuredHeight() - getPaddingTop()) - getPaddingBottom(), 1073741824));
        this.mCircleView.measure(MeasureSpec.makeMeasureSpec(this.mCircleWidth, 1073741824), MeasureSpec.makeMeasureSpec(this.mCircleHeight, 1073741824));
        if (!(this.mUsingCustomStart || this.mOriginalOffsetCalculated)) {
            this.mOriginalOffsetCalculated = true;
            int i = -this.mCircleView.getMeasuredHeight();
            this.mOriginalOffsetTop = i;
            this.mCurrentTargetOffsetTop = i;
        }
        this.mCircleViewIndex = -1;
        for (int index = 0; index < getChildCount(); index++) {
            if (getChildAt(index) == this.mCircleView) {
                this.mCircleViewIndex = index;
                return;
            }
        }
    }
}
项目：YCWeather    文件：ViewUtil.java    
public static void measureView(View view) {
    ViewGroup.LayoutParams p = view.getLayoutParams();
    if (p == null) {
        p = new ViewGroup.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT,
                ViewGroup.LayoutParams.WRAP_CONTENT);
    }
    int childWidthSpec = ViewGroup.getChildMeasureSpec(0, 0 + 0, p.width);
    int lpHeight = p.height;
    int childHeightSpec;
    if (lpHeight > 0) {
        childHeightSpec = MeasureSpec.makeMeasureSpec(lpHeight, MeasureSpec.EXACTLY);
    } else {
        childHeightSpec = MeasureSpec.makeMeasureSpec(0, MeasureSpec.UNSPECIFIED);
    }
    view.measure(childWidthSpec, childHeightSpec);
}
项目：boohee_v5.6    文件：ActivityChooserView.java    
public int measureContentWidth() {
    int oldMaxActivityCount = this.mMaxActivityCount;
    this.mMaxActivityCount = MAX_ACTIVITY_COUNT_UNLIMITED;
    int contentWidth = 0;
    View itemView = null;
    int widthMeasureSpec = MeasureSpec.makeMeasureSpec(0, 0);
    int heightMeasureSpec = MeasureSpec.makeMeasureSpec(0, 0);
    int count = getCount();
    for (int i = 0; i < count; i++) {
        itemView = getView(i, itemView, null);
        itemView.measure(widthMeasureSpec, heightMeasureSpec);
        contentWidth = Math.max(contentWidth, itemView.getMeasuredWidth());
    }
    this.mMaxActivityCount = oldMaxActivityCount;
    return contentWidth;
}
项目：Phial    文件：PhialButtonTest.java    
@Test
public void measure_honors_measure_specs() {
    final PhialButton button = new PhialButton(context);
    button.setSuggestedSize(10);
    button.setShadowSize(2);

    button.measure(MeasureSpec.UNSPECIFIED, MeasureSpec.UNSPECIFIED);
    assertEquals(12, button.getMeasuredWidth());
    assertEquals(12, button.getMeasuredHeight());

    final int specs = makeMeasureSpec(15, MeasureSpec.AT_MOST);
    button.measure(specs, specs);
    assertEquals(12, button.getMeasuredWidth());
    assertEquals(12, button.getMeasuredHeight());

    final int specsReduced = makeMeasureSpec(10, MeasureSpec.AT_MOST);
    button.measure(specsReduced, specsReduced);
    assertEquals(10, button.getMeasuredWidth());
    assertEquals(10, button.getMeasuredHeight());

    final int specsExactly = makeMeasureSpec(15, MeasureSpec.EXACTLY);
    button.measure(specsExactly, specsExactly);
    assertEquals(15, button.getMeasuredWidth());
    assertEquals(15, button.getMeasuredHeight());
}
项目：ChromeLikeTabSwitcher    文件：PreviewDataBinder.java    
@NonNull
@Override
protected final Bitmap doInBackground(@NonNull final Tab key,
                                      @NonNull final TabItem... params) {
    TabItem tabItem = params[0];
    PhoneTabViewHolder viewHolder = (PhoneTabViewHolder) tabItem.getViewHolder();
    View content = viewHolder.content;
    viewHolder.content = null;
    int width = parent.getWidth();
    int height = parent.getHeight();
    content.measure(MeasureSpec.makeMeasureSpec(width, MeasureSpec.EXACTLY),
            MeasureSpec.makeMeasureSpec(height, MeasureSpec.EXACTLY));
    content.layout(0, 0, content.getMeasuredWidth(), content.getMeasuredHeight());
    Bitmap bitmap = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888);
    Canvas canvas = new Canvas(bitmap);
    content.draw(canvas);
    return bitmap;
}
项目：CommonFramework    文件：ViewUtils.java    
/**
 * 测量View的尺寸<br/>
 * 由于Android你中View需要测量后才能得到具体的尺寸数据<br/>
 * 但是我们在使用中，通常都是初始化就需要得到尺寸数据<br/>
 * 因此提供该工具方法，只要对需要尺寸数据的View执行该方法<br/>
 * 然后该View就可以取到尺寸信息。
 *
 * @param child
 */
public static void measureView(View child) {
    ViewGroup.LayoutParams lp = child.getLayoutParams();
    if (lp == null) {
        lp = new ViewGroup.LayoutParams(ViewGroup.LayoutParams.FILL_PARENT, ViewGroup.LayoutParams.WRAP_CONTENT);
    }
    // View的宽度信息
    int childMeasureWidth = ViewGroup.getChildMeasureSpec(0, 0, lp.width);
    int childMeasureHeight;
    if (lp.height > 0) {
        // 最后一个参数表示：适合、匹配
        childMeasureHeight = MeasureSpec.makeMeasureSpec(lp.height, MeasureSpec.EXACTLY);
    } else {
        childMeasureHeight = MeasureSpec.makeMeasureSpec(0, MeasureSpec.UNSPECIFIED); // 未指定
    }
    //
    child.measure(childMeasureWidth, childMeasureHeight);
}
项目：boohee_v5.6    文件：WheelView.java    
protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
    int height;
    int widthMode = MeasureSpec.getMode(widthMeasureSpec);
    int heightMode = MeasureSpec.getMode(heightMeasureSpec);
    int widthSize = MeasureSpec.getSize(widthMeasureSpec);
    int heightSize = MeasureSpec.getSize(heightMeasureSpec);
    buildViewForMeasuring();
    int width = calculateLayoutWidth(widthSize, widthMode);
    if (heightMode == 1073741824) {
        height = heightSize;
    } else {
        height = getDesiredHeight(this.itemsLayout);
        if (heightMode == Integer.MIN_VALUE) {
            height = Math.min(height, heightSize);
        }
    }
    setMeasuredDimension(width, height);
}
项目：boohee_v5.6    文件：PagerTitleStrip.java    
protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
    if (MeasureSpec.getMode(widthMeasureSpec) != 1073741824) {
        throw new IllegalStateException("Must measure with an exact width");
    }
    int height;
    int heightPadding = getPaddingTop() + getPaddingBottom();
    int childHeightSpec = getChildMeasureSpec(heightMeasureSpec, heightPadding, -2);
    int widthSize = MeasureSpec.getSize(widthMeasureSpec);
    int childWidthSpec = getChildMeasureSpec(widthMeasureSpec, (int) (((float) widthSize) * 0.2f), -2);
    this.mPrevText.measure(childWidthSpec, childHeightSpec);
    this.mCurrText.measure(childWidthSpec, childHeightSpec);
    this.mNextText.measure(childWidthSpec, childHeightSpec);
    if (MeasureSpec.getMode(heightMeasureSpec) == 1073741824) {
        height = MeasureSpec.getSize(heightMeasureSpec);
    } else {
        height = Math.max(getMinHeight(), this.mCurrText.getMeasuredHeight() + heightPadding);
    }
    setMeasuredDimension(widthSize, ViewCompat.resolveSizeAndState(height, heightMeasureSpec, ViewCompat.getMeasuredState(this.mCurrText) << 16));
}
项目：boohee_v5.6    文件：CirclePageIndicator.java    
private int measureShort(int measureSpec) {
    int specMode = MeasureSpec.getMode(measureSpec);
    int specSize = MeasureSpec.getSize(measureSpec);
    if (specMode == 1073741824) {
        return specSize;
    }
    int result = (int) ((((2.0f * this.mRadius) + ((float) getPaddingTop())) + ((float)
            getPaddingBottom())) + 1.0f);
    if (specMode == Integer.MIN_VALUE) {
        return Math.min(result, specSize);
    }
    return result;
}
项目：GitHub    文件：RefreshContentWrapper.java    
protected static int measureViewHeight(View view) {
    ViewGroup.LayoutParams p = view.getLayoutParams();
    if (p == null) {
        p = new ViewGroup.LayoutParams(MATCH_PARENT,WRAP_CONTENT);
    }
    int childHeightSpec;
    int childWidthSpec = ViewGroup.getChildMeasureSpec(0, 0, p.width);
    if (p.height > 0) {
        childHeightSpec = MeasureSpec.makeMeasureSpec(p.height, MeasureSpec.EXACTLY);
    } else {
        childHeightSpec = MeasureSpec.makeMeasureSpec(0, MeasureSpec.UNSPECIFIED);
    }
    view.measure(childWidthSpec, childHeightSpec);
    return view.getMeasuredHeight();
}
项目：boohee_v5.6    文件：TabLayout.java    
protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
    super.onMeasure(widthMeasureSpec, heightMeasureSpec);
    if (MeasureSpec.getMode(widthMeasureSpec) == 1073741824 && TabLayout.this.mMode == 1 && TabLayout.this.mTabGravity == 1) {
        int i;
        int count = getChildCount();
        int largestTabWidth = 0;
        int z = count;
        for (i = 0; i < z; i++) {
            View child = getChildAt(i);
            if (child.getVisibility() == 0) {
                largestTabWidth = Math.max(largestTabWidth, child.getMeasuredWidth());
            }
        }
        if (largestTabWidth > 0) {
            boolean remeasure = false;
            if (largestTabWidth * count <= getMeasuredWidth() - (TabLayout.this.dpToPx(16) * 2)) {
                for (i = 0; i < count; i++) {
                    LayoutParams lp = (LayoutParams) getChildAt(i).getLayoutParams();
                    if (lp.width != largestTabWidth || lp.weight != 0.0f) {
                        lp.width = largestTabWidth;
                        lp.weight = 0.0f;
                        remeasure = true;
                    }
                }
            } else {
                TabLayout.this.mTabGravity = 0;
                TabLayout.this.updateTabViews(false);
                remeasure = true;
            }
            if (remeasure) {
                super.onMeasure(widthMeasureSpec, heightMeasureSpec);
            }
        }
    }
}
项目：CSipSimple    文件：ActionMenuPresenter.java    
@Override
public void initForMenu(Context context, MenuBuilder menu) {
    super.initForMenu(context, menu);

    final Resources res = context.getResources();

    if (!mReserveOverflowSet) {
        mReserveOverflow = reserveOverflow(mContext);
    }

    if (!mWidthLimitSet) {
        mWidthLimit = res.getDisplayMetrics().widthPixels / 2;
    }

    // Measure for initial configuration
    if (!mMaxItemsSet) {
        mMaxItems = getResources_getInteger(context, R.integer.abs__max_action_buttons);
    }

    int width = mWidthLimit;
    if (mReserveOverflow) {
        if (mOverflowButton == null) {
            mOverflowButton = new OverflowMenuButton(mSystemContext);
            final int spec = MeasureSpec.makeMeasureSpec(0, MeasureSpec.UNSPECIFIED);
            mOverflowButton.measure(spec, spec);
        }
        width -= mOverflowButton.getMeasuredWidth();
    } else {
        mOverflowButton = null;
    }

    mActionItemWidthLimit = width;

    mMinCellSize = (int) (ActionMenuView.MIN_CELL_SIZE * res.getDisplayMetrics().density);

    // Drop a scrap view as it may no longer reflect the proper context/config.
    mScrapActionButtonView = null;
}
项目：boohee_v5.6    文件：Space.java    
private static int getDefaultSize2(int size, int measureSpec) {
    int result = size;
    int specMode = MeasureSpec.getMode(measureSpec);
    int specSize = MeasureSpec.getSize(measureSpec);
    switch (specMode) {
        case Integer.MIN_VALUE:
            return Math.min(size, specSize);
        case 0:
            return size;
        case 1073741824:
            return specSize;
        default:
            return result;
    }
}
项目：boohee_v5.6    文件：PinnedHeaderListView.java    
private void ensurePinnedHeaderLayout(View header) {
    if (header.isLayoutRequested()) {
        int heightSpec;
        int widthSpec = MeasureSpec.makeMeasureSpec(getMeasuredWidth(), this.mWidthMode);
        LayoutParams layoutParams = header.getLayoutParams();
        if (layoutParams == null || layoutParams.height <= 0) {
            heightSpec = MeasureSpec.makeMeasureSpec(0, 0);
        } else {
            heightSpec = MeasureSpec.makeMeasureSpec(layoutParams.height, 1073741824);
        }
        header.measure(widthSpec, heightSpec);
        header.layout(0, 0, header.getMeasuredWidth(), header.getMeasuredHeight());
    }
}
项目：boohee_v5.6    文件：BooheeRulerView.java    
private int measureHeight(int heightMeasure) {
    int measureMode = MeasureSpec.getMode(heightMeasure);
    int measureSize = MeasureSpec.getSize(heightMeasure);
    int result = (int) (this.bottomPadding + (this.longLineHeight * 2.0f));
    switch (measureMode) {
        case Integer.MIN_VALUE:
            result = Math.min(result, measureSize);
            break;
        case 1073741824:
            result = Math.max(result, measureSize);
            break;
    }
    this.height = result;
    return result;
}
项目：planetcon    文件：TextAdapter.java    
private int measureNumColumns(ViewGroup layout, CharSequence item, CharSequence title) {
    int colWidth = 0;
    int viewWidth = 0;

    if (getSize() > 0) {
        // Use the first item to measure the column width
        TextView tempView = createTextView(item);
        tempView.setLayoutParams(new ViewGroup.LayoutParams(ViewGroup.LayoutParams.WRAP_CONTENT, ViewGroup.LayoutParams.WRAP_CONTENT));
        tempView.measure(MeasureSpec.UNSPECIFIED, MeasureSpec.UNSPECIFIED);
        colWidth = tempView.getMeasuredWidth() + 4;
        // Stack overflow when called just after resized layout !?
        viewWidth = layout.getWidth();
        // If table layout not inflated yet, use device width
        if (viewWidth <= 0) {
            viewWidth = mRes.getDisplayMetrics().widthPixels - 2 * mRes.getDimensionPixelOffset(R.dimen.activity_horizontal_margin);
        }
        if (title != null) {
            tempView = createTextView(title);
            tempView.setLayoutParams(new ViewGroup.LayoutParams(ViewGroup.LayoutParams.WRAP_CONTENT, ViewGroup.LayoutParams.WRAP_CONTENT));
            tempView.measure(MeasureSpec.UNSPECIFIED, MeasureSpec.UNSPECIFIED);
            viewWidth -= tempView.getMeasuredWidth();
        }
    }
    if (colWidth != 0) {
        return Math.max(1, viewWidth/colWidth);
    } else {
        return 1;
    }
}
项目：boohee_v5.6    文件：SearchView.java    
protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
    if (isIconified()) {
        super.onMeasure(widthMeasureSpec, heightMeasureSpec);
        return;
    }
    int widthMode = MeasureSpec.getMode(widthMeasureSpec);
    int width = MeasureSpec.getSize(widthMeasureSpec);
    switch (widthMode) {
        case Integer.MIN_VALUE:
            if (this.mMaxWidth <= 0) {
                width = Math.min(getPreferredWidth(), width);
                break;
            } else {
                width = Math.min(this.mMaxWidth, width);
                break;
            }
        case 0:
            width = this.mMaxWidth > 0 ? this.mMaxWidth : getPreferredWidth();
            break;
        case 1073741824:
            if (this.mMaxWidth > 0) {
                width = Math.min(this.mMaxWidth, width);
                break;
            }
            break;
    }
    super.onMeasure(MeasureSpec.makeMeasureSpec(width, 1073741824), heightMeasureSpec);
}
项目：floating_calc    文件：FloatingView.java    
@SuppressLint("RtlHardcoded")
private void show() {
    Log.v(TAG, "show()");
    if (mView == null) {
        mView = inflateView(mRootView);
        mView.setOnTouchListener(new OnTouchListener() {
            @Override
            public boolean onTouch(View view, MotionEvent motionEvent) {
                return true;
            }
        });
        FrameLayout.LayoutParams params = (FrameLayout.LayoutParams) mView.getLayoutParams();
        params.leftMargin = getMargin();
        params.rightMargin = getMargin();
        params.gravity = getOpenPosition().x < getScreenWidth() / 2 ? Gravity.LEFT : Gravity.RIGHT;
        mRootView.addView(mView);
        mView.measure(MeasureSpec.makeMeasureSpec(mRootView.getWidth() - getMargin(), MeasureSpec.AT_MOST),
                MeasureSpec.makeMeasureSpec(mRootView.getHeight() - getMargin() - getOpenPosition().y, MeasureSpec.AT_MOST));
    } else {
        mView.setVisibility(View.VISIBLE);
    }
    // Adjust view location
    if (!mIsDestroyed) {
        if (getResources().getConfiguration().orientation == Configuration.ORIENTATION_LANDSCAPE) {
            mView.setTranslationX(-mDraggableIcon.getWidth());
            mView.setTranslationY(getOpenPosition().y);
        } else {
            mView.setTranslationY(getOpenPosition().y + mDraggableIcon.getHeight());
        }
    }

    // Animate calc in
    mView.setAlpha(0);
    mView.animate().setDuration(150).alpha(1).setListener(null);

    onShow();
}
项目：boohee_v5.6    文件：MultiViewPager.java    
protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
    this.size.set(MeasureSpec.getSize(widthMeasureSpec), MeasureSpec.getSize
            (heightMeasureSpec));
    if (this.mMaxWidth >= 0 || this.mMaxHeight >= 0) {
        this.maxSize.set(this.mMaxWidth, this.mMaxHeight);
        constrainTo(this.size, this.maxSize);
        widthMeasureSpec = MeasureSpec.makeMeasureSpec(this.size.x, 1073741824);
        heightMeasureSpec = MeasureSpec.makeMeasureSpec(this.size.y, 1073741824);
    }
    super.onMeasure(widthMeasureSpec, heightMeasureSpec);
    onMeasurePage(widthMeasureSpec, heightMeasureSpec);
}