Java ViewGroup.getMeasuredHeight方法代码示例

import android.view.ViewGroup; //导入方法依赖的package包/类
@Override
protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
    if (getChildCount() < 2) {
        throw new IllegalArgumentException("child count can not be less than 2");
    }
    for (int i = 0; i < getChildCount(); i++) {
        switch (i) {
            case COLLAPSING_VIEW_POSITION:
                mCollapsingViewGroup = (ViewGroup) getChildAt(COLLAPSING_VIEW_POSITION);
                measureChildWithMargins(mCollapsingViewGroup, widthMeasureSpec, 0, MeasureSpec.UNSPECIFIED, 0);
                break;
            case NESTED_SCROLLVIEW_POSITION:
                mNestedScrollViewGroup = (ViewGroup) getChildAt(NESTED_SCROLLVIEW_POSITION);
                break;
        }
    }
    mMaxScrollY = mCollapsingViewGroup.getMeasuredHeight() - mCollapsingOffset;
    super.onMeasure(widthMeasureSpec, MeasureSpec.makeMeasureSpec(MeasureSpec.getSize(heightMeasureSpec) + mMaxScrollY, MeasureSpec.EXACTLY));
}
 

import android.view.ViewGroup; //导入方法依赖的package包/类
/**
 * Find the view touching the bottom of this ViewGroup. Non visible children are ignored,
 * however getChildDrawingOrder is not taking into account for simplicity and because it behaves
 * inconsistently across platform versions.
 *
 * @return View touching the bottom of this ViewGroup or null
 */
@Nullable private static View getBottomView(ViewGroup viewGroup) {
    if (viewGroup == null || viewGroup.getChildCount() == 0)
        return null;
    View bottomView = null;
    for (int i = viewGroup.getChildCount() - 1; i >= 0; i--) {
        View child = viewGroup.getChildAt(i);
        if (child.getVisibility() == View.VISIBLE && child.getBottom() == viewGroup.getMeasuredHeight()) {
            bottomView = child;
            break;
        }
    }
    return bottomView;
}
 

import android.view.ViewGroup; //导入方法依赖的package包/类
@Override
public RecyclerView.ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
    View view = LayoutInflater.from(parent.getContext()).inflate(R.layout.layout_boxing_simple_media_item, parent, false);
    int height = parent.getMeasuredHeight() / 4;
    view.setMinimumHeight(height);
    return new MediaViewHolder(view);
}
 

import android.view.ViewGroup; //导入方法依赖的package包/类
/**
 * 创建一个layout params，并不能改变view的大小
 *
 * @param container
 * @return
 */
private RelativeLayout.LayoutParams createLayoutParams(ViewGroup container) {
    final RelativeLayout.LayoutParams layoutParams = LuaViewUtil.createRelativeLayoutParamsWM();
    if(container != null) {
        layoutParams.width = container.getMeasuredWidth();
        layoutParams.height = container.getMeasuredHeight();
    }
    return layoutParams;
}
 

import android.view.ViewGroup; //导入方法依赖的package包/类
private static int measureViewGroupHeight(ViewGroup viewGroup) {
    View parent = (View) viewGroup.getParent();
    int widthMeasureSpec = View.MeasureSpec.makeMeasureSpec(
            parent.getMeasuredWidth() - parent.getPaddingLeft() - parent.getPaddingRight(),
            View.MeasureSpec.AT_MOST);
    int heightMeasureSpec = View.MeasureSpec.makeMeasureSpec(0, View.MeasureSpec.UNSPECIFIED);
    viewGroup.measure(widthMeasureSpec, heightMeasureSpec);
    return viewGroup.getMeasuredHeight();
}
 

import android.view.ViewGroup; //导入方法依赖的package包/类
public static int stringToDimensionPixelSize(String dimension, DisplayMetrics metrics, ViewGroup parent, boolean horizontal) {
    if (dimension.endsWith("%")) {
        float pct = Float.parseFloat(dimension.substring(0, dimension.length() - 1)) / 100.0f;
        return (int) (pct * (horizontal ? parent.getMeasuredWidth() : parent.getMeasuredHeight()));
    }
    return stringToDimensionPixelSize(dimension, metrics);
}
 

import android.view.ViewGroup; //导入方法依赖的package包/类
@Override
public ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
    View view = LayoutInflater.from(parent.getContext()).inflate(R.layout.item_poster, parent, false);
    int height = parent.getMeasuredHeight() / 2;
    ViewHolder viewHolder = new ViewHolder(parent, view);
    viewHolder.mPosterImageView.setMinimumHeight(height);
    return viewHolder;
}
 

import android.view.ViewGroup; //导入方法依赖的package包/类
@Nullable
@Override
public int[] calculateDistanceToFinalSnap(@NonNull RecyclerView.LayoutManager layoutManager, @NonNull View targetView) {
    RecyclerView.LayoutParams params = (RecyclerView.LayoutParams) targetView.getLayoutParams();
    int position = params.getViewAdapterPosition();
    int left = targetView.getLeft();
    int right = targetView.getRight();
    int top = targetView.getTop();
    int bottom = targetView.getBottom();
    ViewGroup viewGroup = (ViewGroup) targetView.getParent();

    int[] out = new int[]{0, 0};
    boolean isLastItem;
    if (mOrientation == LinearLayoutManager.HORIZONTAL) {
        isLastItem = position == layoutManager.getItemCount() - 1/*最后一个*/ && right == viewGroup.getMeasuredWidth();
        out[0] = left;
        out[1] = 0;
    } else {
        isLastItem = position == layoutManager.getItemCount() - 1/*最后一个*/ && bottom == viewGroup.getMeasuredHeight();
        out[0] = 0;
        out[1] = top;
    }

    if (mOnPageListener != null && mCurrentPosition != position) {
        int currentPosition = mCurrentPosition;
        boolean listener = false;
        if (mOrientation == LinearLayoutManager.HORIZONTAL && (out[0] == 0 || isLastItem)) {
            listener = true;
        } else if (mOrientation == LinearLayoutManager.VERTICAL && (out[1] == 0 || isLastItem)) {
            listener = true;
        }

        if (listener) {
            mCurrentPosition = position;
            mOnPageListener.onPageSelector(mCurrentPosition);
            mOnPageListener.onPageSelector(currentPosition, mCurrentPosition);
        }
    }
    return out;
}
 

import android.view.ViewGroup; //导入方法依赖的package包/类
public BaseHolder(LayoutInflater inflater, ViewGroup parent, @LayoutRes int layoutId, boolean isFillParent) {
  super(inflate(inflater, parent, layoutId));
  if (isFillParent && parent != null) {
    getItemView().getLayoutParams().height = parent.getMeasuredHeight() - (parent.getPaddingTop() + parent.getPaddingBottom());
  }
}
 

import android.view.ViewGroup; //导入方法依赖的package包/类
private void updateInElevator() {
    ViewParent parent = getParent();
    if (!(parent instanceof ViewGroup)) {
        return;
    }
    ViewGroup parentView = (ViewGroup) parent;
    Resources res = getResources();
    float mySize = res.getDimension(R.dimen.person_size);
    float speed = mySize / TIME_TO_STEP; // pixels per ms
    float baseLineX = res.getDimension(R.dimen.elevator_doors_width); // x values start right after elevator doors
    int parentWidth = parentView.getMeasuredWidth();
    int parentHeight = parentView.getMeasuredHeight();
    float centerY = (parentHeight - mySize) / 2.0f;
    switch (person.getCurrentState()) {
        case IN_DOOR:
            setY(centerY);
            float traverseDoorsDistance = getTraverseDoorsDistance();
            if (person.hasReachedGoal()) {
                // exiting elevator
                moveX(speed, baseLineX, -traverseDoorsDistance);
            } else {
                // entering elevator
                float enterProgress = moveX(speed, baseLineX - traverseDoorsDistance, traverseDoorsDistance);
                if (enterProgress == 1) {
                    person.setCurrentState(ELEVATOR_PRE_PRESS);
                }
            }
            break;
        case ELEVATOR_PRE_PRESS:
            setX(baseLineX);
            float distanceToPanel = res.getDimension(R.dimen.elevator_panel_offset) + res.getDimension(R.dimen.elevator_panel_size) / 2;
            float panelProgress = moveY(speed, centerY, distanceToPanel);
            if (panelProgress == 1) {
                person.setCurrentState(ELEVATOR_POST_PRESS);
            }
            break;
        case ELEVATOR_POST_PRESS:
            float startPanel = centerY + res.getDimension(R.dimen.elevator_panel_offset)
                    + res.getDimension(R.dimen.elevator_panel_size) / 2;
            float progress = moveXY(speed, baseLineX, startPanel,
                    parentWidth * preferredX - baseLineX,
                    parentHeight * preferredY - startPanel);
            if (progress == 1 && person.hasReachedGoal()) {
                person.setCurrentState(ELEVATOR_GOAL_FLOOR);
            }
            break;
        case ELEVATOR_GOAL_FLOOR:
            float progressTowardDoor = moveXY(speed, parentWidth * preferredX, parentHeight * preferredY,
                    baseLineX - parentWidth * preferredX,
                    centerY - parentHeight * preferredY);
            if (progressTowardDoor == 1 && person.hasReachedGoal() && doorsOpen.getValue()) {
                person.setCurrentState(IN_DOOR);
            }
            break;
    }
}
 

import android.view.ViewGroup; //导入方法依赖的package包/类
public void show(Context content,View locationView,String[] menuLabelArray,OnPopMultiMenuClick onPopMultiMenuClick){
        try {
            //check
            if(menuLabelArray==null || menuLabelArray.length<1){
                throw new RuntimeException(" menu label can not be empty ");
            }

            // ready
            LayoutInflater layoutInflater=LayoutInflater.from(content);
            mOnPopMultiMenuClick = onPopMultiMenuClick;

            // 如果只有一个，则把divider删除掉
            ViewGroup popupView =(ViewGroup) layoutInflater.inflate(R.layout.udesk_multi_horizontal_popmenu, null);

            // 把菜单都添加进去
            addChildView(popupView,layoutInflater,menuLabelArray);
            setContentView(popupView);


            // 测绘并定位
            popupView.measure(MeasureSpec.UNSPECIFIED, MeasureSpec.UNSPECIFIED);
            int popupWidth = popupView.getMeasuredWidth();
            int popupHeight =  popupView.getMeasuredHeight();
            setWindowLayoutMode(ViewGroup.LayoutParams.WRAP_CONTENT,ViewGroup.LayoutParams.WRAP_CONTENT);
            setHeight(popupHeight);

            //显示出来
            int[] location = new int[2];
            locationView.getLocationOnScreen(location);

            showAtLocation(locationView, Gravity.NO_GRAVITY , /*location[0]*/(location[0]+locationView.getWidth()/2)-popupWidth/2,
                    location[1]-popupHeight/*location[1]- getHeight()*/);
        } catch (RuntimeException e) {
            e.printStackTrace();
        }
    }