java.lang.String无法强制转换为java.util.ArrayList

Question

我在android中使用自定义列表视图执行搜索功能时出现此错误。

@Override
protected void publishResults(CharSequence constraint,
    FilterResults results) {
        mList = (ArrayList<Details>) results.values;
        DetailsAdapter.this.notifyDataSetChanged();

        });

Answer 1

以下是我ListView可能有帮助的例子：

adapter=new ArrayAdapter<String>(ModifyList.this, android.R.layout.simple_list_item_1,list);
     lv.setAdapter( adapter);
     a=adapter;
     lv.setTextFilterEnabled(true);
     search_et.addTextChangedListener(new TextWatcher() {

        @Override
        public void onTextChanged(CharSequence cs, int arg1, int arg2, int arg3) {              
                ModifyList.this.a.getFilter().filter(cs);

        }

        @Override
        public void beforeTextChanged(CharSequence arg0, int arg1, int arg2,
                int arg3) {
            // TODO Auto-generated method stub

        }

        @Override
        public void afterTextChanged(Editable arg0) {
            // TODO Auto-generated method stub

        }
    });