我有一个listview被顶部的编辑文本过滤。但是，当我点击搜索的项目时，我会得到另一个数据的结果。
例如，我的列表包含A，B，C。当我想在列表中搜索以B开头的内容时，我会得到B，但是当我点击B时，它会返回给我A.
public class InformationActivity extends AppCompatActivity {
private ArrayList<Actors> actorsList;
private ActorAdapter adapter;
private String strId[],strNama[],strDeskripsi[],strFoto[],strMarker[],strLng[],strLat[];
private EditText et;
int textlength = 0;
private ArrayList<Actors> array_sort= new ArrayList<Actors>();
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_information);
actorsList = new ArrayList<Actors>();
registerReceiver(mNetworkReceiver, new IntentFilter(ConnectivityManager.CONNECTIVITY_ACTION));
et = (EditText) findViewById(R.id.EditText01);
final ListView listview = (ListView)findViewById(R.id.list);
adapter = new ActorAdapter(getApplicationContext(), R.layout.row, actorsList);
listview.setAdapter(adapter);
listview.setOnItemClickListener(new OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> arg0, View arg1, int position, long id) {
// TODO Auto-generated method stub
String daftarId = strId[position], daftarNama = strNama[position], daftarDeskripsi = strDeskripsi[position], daftarFoto = strFoto[position], daftarMarker = strMarker[position], daftarLng = strLng[position], daftarLat = strLat[position];
Intent i = new Intent(InformationActivity.this,Detail_Activity.class);
i.putExtra("id",daftarId);
i.putExtra("nama",daftarNama);
i.putExtra("deskripsi",daftarDeskripsi);
i.putExtra("foto",daftarFoto);
i.putExtra("marker",daftarMarker);
i.putExtra("lng",daftarLng);
i.putExtra("lat",daftarLat);
startActivity(i);
}
});
et.addTextChangedListener(new TextWatcher()
{
public void afterTextChanged(Editable s)
{
// Abstract Method of TextWatcher Interface.
}
public void beforeTextChanged(CharSequence s,
int start, int count, int after)
{
// Abstract Method of TextWatcher Interface.
}
public void onTextChanged(CharSequence s,
int start, int before, int count)
{
textlength = et.getText().length();
array_sort.clear();
for (int i = 0; i < actorsList.size(); i++)
{
String nama = actorsList.get(i).getName();
if (textlength <= nama.length())
{
if (et.getText().toString().equalsIgnoreCase( (String) nama.subSequence(0,textlength) ) )
{
array_sort.add(actorsList.get(i));
}
}
}
adapter = new ActorAdapter(getApplicationContext(), R.layout.row, array_sort);
listview.setAdapter(adapter);
}
});
}
class JSONAsyncTask extends AsyncTask<String, Void, Boolean> {
ProgressDialog dialog;
@Override
protected void onPreExecute() {
super.onPreExecute();
dialog = new ProgressDialog(InformationActivity.this);
dialog.setMessage("Silahkan tunggu");
dialog.setTitle("Mendapatkan data...");
dialog.show();
dialog.setCancelable(true);
}
@Override
protected Boolean doInBackground(String... urls) {
try {
HttpGet httppost = new HttpGet(urls[0]);
HttpClient httpclient = new DefaultHttpClient();
HttpResponse response = httpclient.execute(httppost);
int status = response.getStatusLine().getStatusCode();
if (status == 200) {
HttpEntity entity = response.getEntity();
String data = EntityUtils.toString(entity);
JSONObject jsono = new JSONObject(data);
JSONArray konten = jsono.getJSONArray("konten");
strId = new String[konten.length()];
strNama = new String[konten.length()];
strDeskripsi = new String[konten.length()];
strFoto = new String[konten.length()];
strMarker = new String[konten.length()];
strLng = new String[konten.length()];
strLat = new String[konten.length()];
for (int i = 0; i < konten.length(); i++) {
JSONObject object = konten.getJSONObject(i);
strId[i] = object.getString("id");
strNama[i] = object.getString("nama");
strDeskripsi[i] = object.getString("deskripsi");
strFoto[i] = object.getString("foto");
strMarker[i] = object.getString("marker");
strLng[i] = object.getString("lng");
strLat[i] = object.getString("lat");
Actors actor = new Actors();
actor.setName(strNama[i]);
actor.setImage(strFoto[i]);
actorsList.add(actor);
}
return true;
}
} catch (ParseException e1) {
e1.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
} catch (JSONException e) {
e.printStackTrace();
}
return false;
}
protected void onPostExecute(Boolean result) {
dialog.cancel();
adapter.notifyDataSetChanged();
if(!result) {
Toast.makeText(getApplicationContext(), "Tidak dapat mengambil data dari server, silahkan cek koneksi internet anda", Toast.LENGTH_LONG).show();
}
}
}
}
我的适配器
public class ActorAdapter extends ArrayAdapter<Actors> {
private ArrayList<Actors> actorList;
private LayoutInflater vi;
private int Resource;
private ViewHolder holder;
public ActorAdapter(Context context, int resource, ArrayList<Actors> objects) {
super(context, resource, objects);
vi = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
Resource = resource;
actorList = objects;
}
@Override
public View getView(int position, View convertView, ViewGroup parent) {
View v = convertView;
if (v == null) {
holder = new ViewHolder();
v = vi.inflate(Resource, null);
holder.imageview = (ImageView) v.findViewById(R.id.imgIcon);
holder.tvName = (TextView) v.findViewById(R.id.nama);
v.setTag(holder);
} else {
holder = (ViewHolder) v.getTag();
}
holder.tvName.setText(actorList.get(position).getName());
Picasso.with(this.getContext()).load(actorList.get(position).getImage()).placeholder(R.layout.progress).resize(110,110).error(R.mipmap.error).into(holder.imageview);
return v;
}
static class ViewHolder {
public ImageView imageview;
public TextView tvName;
}
}
My Actors Class
public class Actors {
private String name;
private String image;
public Actors(String name, String description, String image, String id) {
this.name = name;
this.image = image;
}
public Actors() {
// TODO Auto-generated constructor stub
}
public String getImage() {
return image;
}
public String getName() {
return name;
}
public void setImage(String image) {
this.image = image;
}
public void setName(String name) {
this.name = name;
}
}
My Actors class
public class Actors {
private String name;
private String image;
public Actors(String name, String description, String image, String id) {
this.name = name;
this.image = image;
}
public Actors() {
// TODO Auto-generated constructor stub
}
public String getImage() {
return image;
}
public String getName() {
return name;
}
public void setImage(String image) {
this.image = image;
}
public void setName(String name) {
this.name = name;
}
}
答案 0 :(得分：0)
获取错误值的原因首先是您在listview中加载整个数据。当您根据文本过滤数据时，您使用另一个arraylist并将其更新为适配器。当您单击listview时，您试图获取值从完整列表数据而不是filterlist.so你得到错误的值。
让我们对代码进行一些更改：
在InformationActivity类中删除String数组
strId[],strNama[],strDeskripsi[],strFoto[],strMarker[],strLng[],strLat[];
像这样初始化oncreate中的arraylist
array_sort= new ArrayList<Actors>();
将array_sort列表传递给适配器而不是actorsList。
adapter = new ActorAdapter(getApplicationContext(), R.layout.row, array_sort);
listview.setAdapter(adapter);
在listview.setOnItemClickListener
中替换此代码 listview.setOnItemClickListener(new OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> arg0, View arg1, int position, long id) {
// TODO Auto-generated method stub
Intent i = new Intent(InformationActivity.this,Detail_Activity.class);
i.putExtra("id",array_sort.get(position).getId());
i.putExtra("nama",array_sort.get(position).getName());
i.putExtra("deskripsi",array_sort.get(position).getDeskripsi());
i.putExtra("foto",array_sort.get(position).getImage());
i.putExtra("marker",array_sort.get(position).getMarker());
i.putExtra("lng",array_sort.get(position).getLng());
i.putExtra("lat",array_sort.get(position).getLat());
startActivity(i);
}
});
在JSONAsyncTask类中，使用此代码而不是代码：
if (status == 200) {
HttpEntity entity = response.getEntity();
String data = EntityUtils.toString(entity);
JSONObject jsono = new JSONObject(data);
JSONArray konten = jsono.getJSONArray("konten");
for (int i = 0; i < konten.length(); i++) {
JSONObject object = konten.getJSONObject(i);
Actors actors=new Actors();
actors.setId(object.getString("id"));
actors.setName(object.getString("nama"));
actors.setDeskripsi(object.getString("deskripsi"));
actors.setImage(object.getString("foto"));
actors.setMarker(object.getString("marker"));
actors.setLng(object.getString("lng"));
actors.setLat(object.getString("lat"));
actorsList.add(actors);
array_sort.add(actors);
}
return true;
}
最后使你的Actors Object类就像这样。
public class Actors {
private String id;
private String name;
private String deskripsi;
private String image;
private String marker;
private String lng;
private String lat;
public Actors(String id, String name, String deskripsi, String image, String marker, String lng, String lat) {
this.id = id;
this.name = name;
this.deskripsi = deskripsi;
this.image = image;
this.marker = marker;
this.lng = lng;
this.lat = lat;
}
public Actors() {
// TODO Auto-generated constructor stub
}
public String getImage() {
return image;
}
public String getName() {
return name;
}
public void setImage(String image) {
this.image = image;
}
public void setName(String name) {
this.name = name;
}
public String getId() {
return id;
}
public void setId(String id) {
this.id = id;
}
public String getDeskripsi() {
return deskripsi;
}
public void setDeskripsi(String deskripsi) {
this.deskripsi = deskripsi;
}
public String getMarker() {
return marker;
}
public void setMarker(String marker) {
this.marker = marker;
}
public String getLng() {
return lng;
}
public void setLng(String lng) {
this.lng = lng;
}
public String getLat() {
return lat;
}
public void setLat(String lat) {
this.lat = lat;
}
}