[英]How to get the original item json array id when autocompletetextview setOnItemClickListener
我在 Android 活動中有一個自動完成文本視圖,該視圖從 json 數組的 arrayadapter 獲取數據。 當有人在自動完成文本視圖中選擇一個選項時,我想獲取原始 JSON 數組 ID。 我得到了選定的字符串,但我想要的是實際 ID 而不是選定的 pos id 這是我的代碼:
private void LoadSearchData() {
RequestQueue requestQueue=Volley.newRequestQueue(getApplicationContext());
StringRequest stringRequest=new StringRequest(Request.Method.GET, url_class.Search_Dist, new Response.Listener<String>() {
@Override
public void onResponse(String response) {
try {
JSONObject jsonObject=new JSONObject(response);
JSONArray jsonArray=jsonObject.getJSONArray("place_info");
data_list=new String[jsonArray.length()];
for (int i=0; i < jsonArray.length(); i++) {
JSONObject jsonObject1=jsonArray.getJSONObject(i);
String dis_name=jsonObject1.getString("store_name" );
String dis_id=jsonObject1.getString("store_id");
Toast.makeText(getApplicationContext(),"District name="+dis_name,Toast.LENGTH_SHORT).show();
district_name.add(dis_name);
/// district_whole.add(dis_name+"-"+dis_id);
data_list[i]=dis_name+"-"+dis_id;
}
//spinner_search.setAdapter(new ArrayAdapter<String>(Dashboard.this, android.R.layout.simple_spinner_dropdown_item, district_name));
autoCompleteTextView.setAdapter(new ArrayAdapter<String>(Dashboard.this, android.R.layout.simple_spinner_dropdown_item, district_name));
} catch (JSONException e) {
e.printStackTrace();
}
}
}, new Response.ErrorListener() {
@Override
public void onErrorResponse(VolleyError error) {
MDToast mdToast=MDToast.makeText(getApplicationContext(), "Something went wrong!!", Toast.LENGTH_SHORT, MDToast.TYPE_WARNING);
mdToast.show();
error.printStackTrace();
}
});
int socketTimeout=30000;
RetryPolicy policy=new DefaultRetryPolicy(socketTimeout, DefaultRetryPolicy.DEFAULT_MAX_RETRIES, DefaultRetryPolicy.DEFAULT_BACKOFF_MULT);
stringRequest.setRetryPolicy(policy);
requestQueue.add(stringRequest);
}
OnSelectItemlistner:
autoCompleteTextView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> adapterView, View view, int i, long l) {
String place_name=autoCompleteTextView.getText().toString();
int txt_indx =i;
//Toast.makeText(getApplicationContext(),"ID="+i,Toast.LENGTH_SHORT).show();
// Toast.makeText(getApplicationContext(),"ID="+i,Toast.LENGTH_SHORT).show();
GetstockInfo(place_name);
textViewDist.setText(place_name);
}
});
首先,這是不推薦的。 但如果你想試試
if(data_list.length > i) {
String id = data_list[i].split("-")[1];
}
建議:您應該使用帶有自定義object
的自定義adapter
來實現此object
定制型號:
class Store {
String name;
String id;
// getter - setter
}
自定義適配器:
class StoreAdapter extends ArrayAdapter<Store> {
}
創建一個與 json 響應中的數據匹配的POJO類
public class Store {
private final String storeId;
private final String storeName;
public Store(String storeId, String storeName) {
this.storeId = storeId;
this.storeName = storeName;
}
public String getStoreId() {
return storeId;
}
public String getStoreName() {
return storeName;
}
}
在您的響應方法中構建 Store 的列表:
private final List<Store> stores = new ArrayList<>();
...
public void onResponse(String response) {
try {
JSONObject jsonObject=new JSONObject(response);
JSONArray jsonArray=jsonObject.getJSONArray("place_info");
for (int i=0; i < jsonArray.length(); i++) {
JSONObject jsonObject1=jsonArray.getJSONObject(i);
final String dis_name=jsonObject1.getString("store_name" );
final String dis_id=jsonObject1.getString("store_id");
stores.add(new Store(dis_id, dis_name));
}
// Create your custom adapter here and pass it "List<Store> stores"
autoCompleteTextView.setAdapter(stores);
} catch (JSONException e) {
e.printStackTrace();
}
}
您還需要為 Spinner 創建自定義適配器類。 有很多關於自定義適配器的教程。
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