数组自定义转换

//list转换数组

mItems = nameList.toArray(new String[nameList.size()]);
//string转换list,去除逗号

List<String> s = Arrays.asList(bean.getPicture().split(","));
//添加逗号,最后一个去除

for (String str : UplodeList) {
    sb.append(str).append(",");
}
mPicStr = sb.deleteCharAt(sb.length() - 1).toString();