private int getHintTextLen(int size) {
        Paint paint = mTitlePaint;
        if (paint != null) {
            paint.setTextSize(size);
            return (int) paint.measureText(getHint().toString());
        } else
            return 0;
    }
Refresh hint ui by this

@param value Hint TitleProperty
caprice/ui/src/main/java/net/qiujuer/genius/ui/widget/EditText.java