@Override
protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
measureChildren(widthMeasureSpec, heightMeasureSpec);
int specModeW = MeasureSpec.getMode(widthMeasureSpec);
int specSizeW = MeasureSpec.getSize(widthMeasureSpec);
int specModeH = MeasureSpec.getMode(heightMeasureSpec);
int specSizeH = MeasureSpec.getSize(heightMeasureSpec);
int maxWidth = specSizeW;
int maxHeight = specSizeH;
int maxChildHeight = 0;
int totalWidth = mOffsetLeft;
for (int i = 0; i < getChildCount(); i++) {
View child = getChildAt(i);
final ViewGroup.MarginLayoutParams lp =
(ViewGroup.MarginLayoutParams) child.getLayoutParams();
int vHeight = child.getMeasuredHeight() + lp.bottomMargin + lp.topMargin;
int vWidth = child.getMeasuredWidth() + lp.leftMargin + lp.rightMargin;
maxChildHeight = Math.max(maxChildHeight, vHeight);
totalWidth += vWidth;
}
ViewGroup.MarginLayoutParams lp = (ViewGroup.MarginLayoutParams) getLayoutParams();
totalWidth += lp.leftMargin + lp.rightMargin;
maxChildHeight += lp.topMargin + lp.bottomMargin;
if (specModeH == MeasureSpec.UNSPECIFIED) {
maxHeight = maxChildHeight;
} else if (specModeH == MeasureSpec.AT_MOST) {
maxHeight = Math.min(maxHeight, maxChildHeight);
}
maxWidth = Math.max(specSizeW, totalWidth);
setMeasuredDimension(maxWidth, maxHeight);
}
