public boolean onContextItemSelected(MenuItem item) {
boolean handled = false;
boolean deleteMessage = false;
if (item.getItemId() == R.id.delete_message) {
deleteMessage = true;
handled = true;
} else if (item.getItemId() == R.id.delete_conversation) {
deleteMessage = false;
handled = true;
}
EMConversation tobeDeleteCons = adapter.getItem(((AdapterView.AdapterContextMenuInfo) item.getMenuInfo()).position);
// 删除此会话
EMChatManager.getInstance().deleteConversation(tobeDeleteCons.getUserName(), tobeDeleteCons.isGroup(), deleteMessage);
InviteMessgeDao inviteMessgeDao = new InviteMessgeDao(getActivity());
inviteMessgeDao.deleteMessage(tobeDeleteCons.getUserName());
adapter.remove(tobeDeleteCons);
adapter.notifyDataSetChanged();
return handled ? true : super.onContextItemSelected(item);
}
这是我的代码,默认是黑色的背景,我想修改成白色。请问怎么修改