Java Code Examples for androidx.recyclerview.widget.RecyclerView#getMeasuredWidth()

The following examples show how to use androidx.recyclerview.widget.RecyclerView#getMeasuredWidth() . You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar.
Example 1
Source File: GridSpacingItemDecoration.java    From a with GNU General Public License v3.0 6 votes vote down vote up 
private void drawHorizontal(Canvas canvas, RecyclerView parent) {
    int left = parent.getPaddingLeft();
    int right = parent.getMeasuredWidth() - parent.getPaddingRight();
    final int childSize = parent.getChildCount();
    for (int i = 0; i < childSize; i++) {
        final View child = parent.getChildAt(i);
        RecyclerView.LayoutParams layoutParams = (RecyclerView.LayoutParams) child.getLayoutParams();
        int top = child.getBottom() + layoutParams.bottomMargin;
        int bottom = top + space;
        if (mDivider != null) {
            mDivider.setBounds(left, top, right, bottom);
            mDivider.draw(canvas);
        }
        if (mPaint != null) {
            canvas.drawRect(left, top, right, bottom, mPaint);
        }

    }
}
Example 2
Source File: GridSpacingItemDecoration.java    From MyBookshelf with GNU General Public License v3.0 6 votes vote down vote up 
private void drawHorizontal(Canvas canvas, RecyclerView parent) {
    int left = parent.getPaddingLeft();
    int right = parent.getMeasuredWidth() - parent.getPaddingRight();
    final int childSize = parent.getChildCount();
    for (int i = 0; i < childSize; i++) {
        final View child = parent.getChildAt(i);
        RecyclerView.LayoutParams layoutParams = (RecyclerView.LayoutParams) child.getLayoutParams();
        int top = child.getBottom() + layoutParams.bottomMargin;
        int bottom = top + space;
        if (mDivider != null) {
            mDivider.setBounds(left, top, right, bottom);
            mDivider.draw(canvas);
        }
        if (mPaint != null) {
            canvas.drawRect(left, top, right, bottom, mPaint);
        }

    }
}
Example 3
Source File: GroupItemDecoration.java    From CalendarView with Apache License 2.0 6 votes vote down vote up 
/**
 * 绘制分组Group
 *
 * @param c      Canvas
 * @param parent RecyclerView
 */
protected void onDrawGroup(Canvas c, RecyclerView parent) {
    int paddingLeft = parent.getPaddingLeft();
    int right = parent.getWidth() - parent.getPaddingRight();
    int top, bottom;
    int count = parent.getChildCount();
    for (int i = 0; i < parent.getChildCount(); i++) {
        View child = parent.getChildAt(i);
        final RecyclerView.LayoutParams params = (RecyclerView.LayoutParams) child.getLayoutParams();
        int key = params.getViewLayoutPosition();
        if (mGroup.containsKey(key)) {
            top = child.getTop() - params.topMargin - mGroupHeight;
            bottom = top + mGroupHeight;
            c.drawRect(paddingLeft, top, right, bottom, mBackgroundPaint);
            String group = mGroup.get(params.getViewLayoutPosition()).toString();
            float x;
            float y = top + mTextBaseLine;
            if (isCenter) {
                x = parent.getMeasuredWidth() / 2 - getTextX(group);
            } else {
                x = mPaddingLeft;
            }
            c.drawText(group, x, y, mTextPaint);
        }
    }
}
Example 4
Source File: GridMenu.java    From gridmenu with MIT License 5 votes vote down vote up 
@Override
public void getItemOffsets(@NonNull Rect outRect, @NonNull View view, @NonNull RecyclerView parent, @NonNull RecyclerView.State state) {
    super.getItemOffsets(outRect, view, parent, state);

    measureItemView(view, parent);

    int viewWidth = view.getMeasuredWidth();
    if (spanCount * viewWidth < parent.getMeasuredWidth()) {
        int emptySpacePx = parent.getMeasuredWidth() - spanCount * viewWidth;
        outRect.left = outRect.right = emptySpacePx / (2 * spanCount);
    }
}
Example 5
Source File: CarouselItemDecoration.java    From CarouselView with MIT License 5 votes vote down vote up 
@Override
public void getItemOffsets(@NonNull final Rect outRect, @NonNull final View view, @NonNull final RecyclerView parent, @NonNull final RecyclerView.State state) {
  super.getItemOffsets(outRect, view, parent, state);

  outRect.right = this.width > 0 ? this.spacing / 2 : this.spacing;
  outRect.left = this.width > 0 ? this.spacing / 2 : 0;

  if ((state.getItemCount() - 1 == parent.getChildLayoutPosition(view))) {
    outRect.right = this.width > 0 ? ((parent.getMeasuredWidth() / 2) - (this.width / 2)) : 0;
  }
  if (parent.getChildLayoutPosition(view) == 0) {
    outRect.left = this.width > 0 ? ((parent.getMeasuredWidth() / 2) - (this.width / 2)) : 0;
  }
}
Example 6
Source File: ColorItemDecoration.java    From FastAdapter with MIT License 5 votes vote down vote up 
private void drawHorizontal(Canvas canvas, RecyclerView parent) {
  final int left = parent.getPaddingLeft();
  final int right = parent.getMeasuredWidth() - parent.getPaddingRight();
  int childSize = parent.getChildCount();
  for (int i = 0; i < childSize; i++) {
    final View child = parent.getChildAt(i);
    RecyclerView.LayoutParams layoutParams =
        (RecyclerView.LayoutParams) child.getLayoutParams();
    final int top = child.getBottom() + layoutParams.bottomMargin;
    final int bottom = top + mDividerHeight;
    if (mPaint != null) {
      canvas.drawRect(left + mMarginLeft, top, right, bottom, mPaint);
    }
  }
}
Example 7
Source File: OrientationStateHorizontalBottom.java    From LoopBar with MIT License 5 votes vote down vote up 
@Override
public boolean isItemsFitOnScreen(RecyclerView recyclerView, int itemsSize) {
    calcItemWidth(recyclerView);
    int itemsWidth = itemWidth * (itemsSize);
    int containerWidth = recyclerView.getMeasuredWidth();
    return containerWidth >= itemsWidth;
}
Example 8
Source File: GroupItemDecoration.java    From CalendarView with Apache License 2.0 4 votes vote down vote up 
/**
 * 绘制悬浮组
 *
 * @param c      Canvas
 * @param parent RecyclerView
 */
protected void onDrawOverGroup(Canvas c, RecyclerView parent) {
    int firstVisiblePosition = ((LinearLayoutManager) parent.getLayoutManager()).findFirstVisibleItemPosition();
    if (firstVisiblePosition == RecyclerView.NO_POSITION) {
        return;
    }
    Group group = getCroup(firstVisiblePosition);
    if (group == null)
        return;
    String groupTitle = group.toString();
    if (TextUtils.isEmpty(groupTitle)) {
        return;
    }
    boolean isRestore = false;
    Group nextGroup = getCroup(firstVisiblePosition + 1);
    if (nextGroup != null && !group.equals(nextGroup)) {
        //说明是当前组最后一个元素，但不一定碰撞了
        View child = parent.findViewHolderForAdapterPosition(firstVisiblePosition).itemView;
        if (child.getTop() + child.getMeasuredHeight() < mGroupHeight) {
            //进一步检测碰撞
            c.save();//保存画布当前的状态
            isRestore = true;
            c.translate(0, child.getTop() + child.getMeasuredHeight() - mGroupHeight);
        }
    }
    int left = parent.getPaddingLeft();
    int right = parent.getWidth() - parent.getPaddingRight();
    int top = parent.getPaddingTop();
    int bottom = top + mGroupHeight;
    c.drawRect(left, top, right, bottom, mBackgroundPaint);
    float x;
    float y = top + mTextBaseLine;
    if (isCenter) {
        x = parent.getMeasuredWidth() / 2 - getTextX(groupTitle);
    } else {
        x = mPaddingLeft;
    }
    c.drawText(groupTitle, x, y, mTextPaint);
    if (isRestore) {
        //还原画布为初始状态
        c.restore();
    }
}