我有由Volley填充的listview，我想在不编辑适配器类的情况下添加过滤器，我之前做过这个，但是其他自定义适配器没有像这样填充JSON文件中的数据，
Telephones.class
public class Telephones extends AppCompatActivity {
RequestQueue requestQueue;
private List<tel_list> data = new ArrayList<tel_list>();
private ListView listView;
private TelAdapter adapter;
private EditText telfilter;
private ProgressDialog progressDialog;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_telephones);
getSupportActionBar().setDisplayShowCustomEnabled(true);
getSupportActionBar().setCustomView(R.layout.actionbar);
listView = (ListView) findViewById(R.id.listview1);
adapter = new TelAdapter(this, data);
listView.setAdapter(adapter);
progressDialog = new ProgressDialog(this);
progressDialog.setMessage("Please wait...");
progressDialog.show();
telfilter = (EditText) findViewById(R.id.myFilter);
telfilter.addTextChangedListener(new TextWatcher() {
@Override
public void beforeTextChanged(CharSequence s, int start, int count, int after) {
}
@Override
public void onTextChanged(CharSequence s, int start, int before, int count) {
}
@Override
public void afterTextChanged(Editable s) {
}
});
requestQueue = Volley.newRequestQueue(this);
JsonObjectRequest jsonObjectRequest = new JsonObjectRequest(Request.Method.GET, "http://10.0.2.2/abb/getphones.php",
new com.android.volley.Response.Listener<JSONObject>() {
@Override
public void onResponse(JSONObject response) {
hideprogressDialog();
try {
JSONArray jsonArray = response.getJSONArray("telephones");
for (int i = 0; i < jsonArray.length(); i++) {
JSONObject telephones = jsonArray.getJSONObject(i);
tel_list tellist = new tel_list();
tellist.setName(telephones.getString("name"));
tellist.setNumber(telephones.getString("number"));
data.add(tellist);
}
} catch (JSONException e) {
e.printStackTrace();
}
adapter.notifyDataSetChanged();
}
},
new com.android.volley.Response.ErrorListener() {
@Override
public void onErrorResponse(VolleyError error) {
hideprogressDialog();
Log.e("Volley", "Error");
}
}
);
requestQueue.add(jsonObjectRequest);
}
@Override
public void onDestroy() {
super.onDestroy();
hideprogressDialog();
}
private void hideprogressDialog() {
if (progressDialog != null) {
progressDialog.dismiss();
progressDialog = null;
}
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
getMenuInflater().inflate(R.menu.menu_main, menu);
return true;
}
public boolean onOptionsItemSelected(MenuItem item) {
switch (item.getItemId()) {
case R.id.about:
Intent intent = new Intent(this, about.class);
startActivity(intent);
return true;
}
return super.onOptionsItemSelected(item);
}
}
TelAdapter.class
public class TelAdapter extends ArrayAdapter<tel_list> {
private Context context;
private List<tel_list> telephones;
public TelAdapter(Context context, List<tel_list> data) {
super(context, R.layout.activity_item, data);
telephones = data;
}
public View getView(int position, View convertView, ViewGroup parent) {
LayoutInflater inflater = LayoutInflater.from(getContext());
View item = inflater.inflate(R.layout.activity_item, null);
TextView name = (TextView) item.findViewById(R.id.names);
name.setText(telephones.get(position).getName());
TextView number = (TextView) item.findViewById(R.id.numbers);
number.setText(telephones.get(position).getNumber());
return item;
}
}