SearchView.java 文件源码

private void adjustDropDownSizeAndPosition() {
    if (mDropDownAnchor.getWidth() > 1) {
        Resources res = getContext().getResources();
        int anchorPadding = mSearchPlate.getPaddingLeft();
        Rect dropDownPadding = new Rect();
        int iconOffset = mIconifiedByDefault
                ? res.getDimensionPixelSize(R.dimen.abs__dropdownitem_icon_width)
                + res.getDimensionPixelSize(R.dimen.abs__dropdownitem_text_padding_left)
                : 0;
        mQueryTextView.getDropDownBackground().getPadding(dropDownPadding);
        mQueryTextView.setDropDownHorizontalOffset(-(dropDownPadding.left + iconOffset)
                + anchorPadding);
        mQueryTextView.setDropDownWidth(mDropDownAnchor.getWidth() + dropDownPadding.left
                + dropDownPadding.right + iconOffset - (anchorPadding));
    }
}