我有一个列表视图，其中包含一些数据。在每个列表视图项目中，我都添加了一个复选框和一个微调框。
我卡住的地方是我从API检索数据并在列表视图中显示数据，即使对于微调器我也是从另一个API获取数据。但是微调器仅显示在列表视图的第一项中，而不显示在其他项目中显示。
比方说，我有5个列表视图项目，在第0个项目中，微调器显示的是数据，而不是其余项目。请让我知道我将如何实现它。
这是MainActivity类：
public class MainActivity extends Activity implements View.OnClickListener {
ListView boxlistView;
EditText totalAmount;
TextView customerName;
TextView balanceStatus;
TextView balanceAmount;
Button btnShowCheckedItems;
List<MachinePojo> boxlist;
ArrayList<String> planList = new ArrayList<String>();
String strSelectedPlan="";
CustomBoxAdapterList _customBoxAdapterList;
Context mContext;
Spinner spinner;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_prepaid);
getActionBar().setBackgroundDrawable(new ColorDrawable(Color.parseColor("#034ea2")));
customerName = findViewById(R.id.prepaid_customer_name);
totalAmount = findViewById(R.id.total_amt_display);
balanceStatus = findViewById(R.id.tv_balanceStatus);
balanceAmount = findViewById(R.id.tv_balanceAmt);
boxlistView = findViewById(R.id.lv_machineId);
spinner = findViewById(R.id.box_plan_spinner);
btnShowCheckedItems = findViewById(R.id.btnShowCheckedItems);
new DisplayBoxList().execute();
addListeners();
new PlanSpinnerList().execute();
}
class DisplayBoxList extends AsyncTask<Object, String, String>{
JSONObject requestObject = new JSONObject();
@Override
protected String doInBackground(Object... objects) {
String result = "";
try {
String customerID = Global.getCustomerID();
requestObject.put("customerId", customerID);
result = ServiceHandler.postCustomerDetailsByID(requestObject.toString());
return result;
} catch (JSONException e) {
e.printStackTrace();
}
return result;
}
@Override
protected void onPostExecute(String result) {
boxlist = new ArrayList<>();
ArrayList<MachinePojo> testList = new ArrayList<>();
boxlist.clear();
try {
JSONObject resultObject = new JSONObject(result);
String accountName = resultObject.getString("Name");
JSONArray subsscriptionArray = resultObject.getJSONArray("Machines");
if (subsscriptionArray.length()>0) {
for (int i = 0; i < subsscriptionArray.length(); i++) {
JSONObject subscriptionObject = subsscriptionArray.getJSONObject(i);
MachinePojo item = new MachinePojo();
item.setBoxID(subscriptionObject.getString("machineId"));
Log.e("getting subscriptionId",item.getBoxID());
JSONObject planObject = subscriptionObject.getJSONObject("planDto");
String machineDescription = planObject.getString("description");
item.setMachineDescription(planDescription);
boxlist.add(item);
}
}else
{
boxlistView.setAdapter(null);
}
customerName.setText("Customer : "+accountName);
fillListView();
}catch (JSONException e){
e.printStackTrace();
}catch (Exception e){
e.printStackTrace();
}
}
}
public void fillListView(){
_customBoxAdapterList = new CustomBoxAdapterList(getApplicationContext(),boxlist);
boxlistView.setAdapter(_customBoxAdapterList);
_customBoxAdapterList.notifyDataSetChanged();
boxlistView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
Log.e("clicked postion is", String.valueOf(position));
}
});
boxlistView.setOnScrollListener(new AbsListView.OnScrollListener() {
@Override
public void onScrollStateChanged(AbsListView view, int scrollState) {
}
@Override
public void onScroll(AbsListView view, int firstVisibleItem, int visibleItemCount, int totalItemCount) {
}
});
}
class PlanSpinnerList extends AsyncTask<Object, String, String>{
JSONObject requestObject = new JSONObject();
@Override
protected String doInBackground(Object... objects) {
String result = "";
try {
String customerID = Global.getCustomerID();
requestObject.put("customerId", customerID);
result = ServiceHandler.getAllMachineDetails();
return result;
} catch (JSONException e) {
e.printStackTrace();
}
return result;
}
@Override
protected void onPostExecute(String result) {
planList.clear();
try {
JSONArray responseArray = new JSONArray(result);
for (int i=0;i<responseArray.length();i++){
JSONObject responseObj = responseArray.getJSONObject(i);
PlansPojo plans = new PlansPojo();
String descr = responseObj.getString("descr");
plans.setPlanName(description);
Log.e("plan descr",descr);
planList.add(description);
}
} catch (JSONException e) {
e.printStackTrace();
}
ArrayAdapter<String> adapter=new ArrayAdapter<String>(getApplicationContext(), android.R.layout.simple_list_item_1,planList);
adapter.setDropDownViewResource(android.R.layout.simple_list_item_1);
final Spinner sitems = findViewById(R.id.box_plan_spinner);
sitems.setAdapter(adapter);
sitems.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() {
@Override
public void onItemSelected(AdapterView<?> parent, View view, int position, long id) {
int indx = planList.indexOf(sitems.getSelectedItem());
strSelectedPlan = planList.get(indx);
}
@Override
public void onNothingSelected(AdapterView<?> parent) {
}
});
}
}
private void addListeners() {
btnShowCheckedItems.setOnClickListener(this);
}
@Override
public void onClick(View v) {
if(_customBoxAdapterList != null) {
ArrayList<MachinePojo> mArrayProducts = _customBoxAdapterList.getCheckedItems();
Log.d(MainActivity.class.getSimpleName(), "Selected Items: " + mArrayProducts.toString());
Toast.makeText(getApplicationContext(), "Selected Items: " + mArrayProducts.toString(), Toast.LENGTH_LONG).show();
}
}
}
这是listview的自定义适配器类：
public class CustomBoxAdapterList extends BaseAdapter{
private Context mContext;
private List<BoxPojo> boxes;
SparseBooleanArray mSparseBooleanArray;
int position=0;
public CustomBoxAdapterList(Context context , List<BoxPojo> boxes){
this.boxes = boxes;
this.mContext = context;
mSparseBooleanArray = new SparseBooleanArray();
}
@Override
public int getCount() {
return boxes.size();
}
@Override
public Object getItem(int position) {
return boxes.get(position);
}
@Override
public long getItemId(int position) {
return position;
}
@Override
public View getView(final int position, View convertView, ViewGroup parent) {
if (convertView ==null){
convertView = LayoutInflater.from(mContext).inflate(R.layout.boxes_list_item,parent,false);
}
BoxPojo TempBoxes = (BoxPojo) getItem(position);
TextView tvBoxID = convertView.findViewById(R.id.tv_boxIDData);
TextView tvPlanDes = convertView.findViewById(R.id.box_plan_name);
if (TempBoxes.getBoxID() == " " || TempBoxes.getBoxID() == null){
tvBoxID.setText("NA");
}else{
tvBoxID.setText(TempBoxes.getBoxID());
}
tvPlanDes.setText(TempBoxes.getPlanDescription());
return convertView;
}
}