Question

我创建了一个适配器，并使用Google Places API显示地址。我打电话给notifyDataSetChanged();获取更新列表。当我输入TextView时，列表不会更改。

Activity 

    public class SelectAddressActivity extends Activity implements SelectAddressAdapter.OnClickInAdapter {

ArrayList<AddressList> addressList;
SelectAddressAdapter adapter;
        EditText addresseEditText;

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_select_address);

    final ListView addressListView = (ListView) findViewById(R.id.addressListView); 

                addresseEditText = (EditText) findViewById(R.id.addressEditText);

    //Adapter
    adapter = new SelectAddressAdapter(this, android.R.layout.simple_list_item_1, addressList);     
    addressListView.setAdapter(adapter);



        addresseEditText.addTextChangedListener(new TextWatcher() {


        @Override
        public void afterTextChanged(final Editable input) {
            scheduler= Executors.newScheduledThreadPool(1);
            scheduler.schedule(new Runnable() {

                @Override
                public void run() {
                    runOnUiThread(new Runnable() {

                        @Override
                        public void run() {

                    GoogleAPIRequestHandler handler = new GoogleAPIRequestHandler();

                    String date= handler.execute(input).get();
                    addressList = new ArrayList<AddressList>();
                    JSONObject jsonObj = new JSONObject(date);

                    JSONArray predsJsonArray = jsonObj.getJSONArray("predictions");
                        for (int i = 0; i < predsJsonArray.length(); i++) {
                        AddressList a = new AddressList();
                        String addressJson = predsJsonArray.getJSONObject(i).toString();
                        a.Deserialize(addressJson);
                        addressList.add(a);
        }                               

                            } catch (InterruptedException e) { 
                                e.printStackTrace();
                            } catch (ExecutionException e) { 
                                e.printStackTrace();
                            } catch (JSONException e) {
                                e.printStackTrace();
                            }


                            adapter.notifyDataSetChanged();;

                        }
                    });
                }
            }, 300, TimeUnit.MILLISECONDS);
        }
    });

}

Answer 1

您没有在适配器中设置更新的地址列表。它仍然有旧数据，所以当你调用notifyDataSetChanged（）方法它没有任何影响。

我调用notifyDataSetChanged（）;更新列表。当我输入TextView时，列表不会更改

1 个答案: