android studio 从列表视图中删除

Question

我正在尝试使用 CustomAdapter 使用下面的编码从 Listview 中删除和刷新

@Override
public View getView(int position, View convertView, ViewGroup parent) {
    SubjectData subjectData = arrayList.get(position);


    if (convertView == null) {
        LayoutInflater layoutInflater = LayoutInflater.from(context);
        convertView = layoutInflater.inflate(R.layout.notifications_list, null);

        listView = convertView.findViewById(R.id.notificationlist);


        convertView.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {

                String item = subjectData.notice_id.toString();
                arrayList.remove(item);
                listView.refreshDrawableState();

            }
        });

Answer 1

您可以使用adapter.notifyDataChanged()

Answer 2

删除您的项目后使用arrayAdapter.notifyDataSetChanged();。

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