private void measureScrapChild(
RecyclerView.Recycler recycler,
int position,
int widthSpec,
int heightSpec,
int[] measuredDimension) {
if (position < getItemCount()) {
try {
View view = recycler.getViewForPosition(position); // fix 动态添加时报IndexOutOfBoundsException
if (view.getVisibility() == View.GONE) {
measuredDimension[0] = 0;
measuredDimension[1] = 0;
return;
}
RecyclerView.LayoutParams p = (RecyclerView.LayoutParams) view.getLayoutParams();
// For adding Item Decor Insets to view
super.measureChildWithMargins(view, 0, 0);
/* 全部 0
final int l = getLeftDecorationWidth(view);
final int r = getRightDecorationWidth(view);
final int t = getTopDecorationHeight(view);
final int b = getBottomDecorationHeight(view);
System.out.println("measureScrapChild Decoration [ position_"+position+"]: left = "
+ l +" ,right = " + r +" ,top = " + t +" ,bottom = " + b);*/
// measureChild(view, widthSpec, heightSpec);
// measureChildWithMargins(view,0,0);
int childWidthSpec =
ViewGroup.getChildMeasureSpec(
widthSpec,
getPaddingLeft()
+ getPaddingRight()
+ getLeftDecorationWidth(view)
+ getRightDecorationWidth(view),
p.width);
int childHeightSpec =
ViewGroup.getChildMeasureSpec(
heightSpec,
getPaddingTop()
+ getPaddingBottom()
+ getTopDecorationHeight(view)
+ getBottomDecorationHeight(view),
p.height);
view.measure(childWidthSpec, childHeightSpec);
measuredDimension[0] = getDecoratedMeasuredWidth(view) + p.leftMargin + p.rightMargin;
measuredDimension[1] = getDecoratedMeasuredHeight(view) + p.bottomMargin + p.topMargin;
// measuredDimension[0] = view.getMeasuredWidth() + p.leftMargin + p.rightMargin;
// measuredDimension[1] = view.getMeasuredHeight() + p.bottomMargin + p.topMargin;
recycler.recycleView(view);
} catch (Exception e) {
e.printStackTrace();
}
}
}
