时间戳

首页 > 解决方案 > OnBackPressed 重复列表在 android 中添加片段

android - OnBackPressed 重复列表在 android 中添加片段

问题描述

嗨，在下面的从一个片段到当前片段重复列表的后按中，使用 android 中的 recyclerview 创建。

如果我加载我的片段，它会给我正确的响应。但是移动到下一个片段并返回到当前片段。当我回到当前片段时，它会显示重复列表而不是关闭应用程序。

public class HomeFragment extends Fragment implements ViewAppointmentAdapter.SelectIemClickListner,ViewAppointmentAdapter.StartSelectIemClickListner,DoctorAdapter.SelectIemClickListner, SpeclializationAdapter.MyItemClickListener, PatientAdapter.SelectIemClickListner,DoctorPatientListAdapter.SelectIemClickListner,DoctorPatientListAdapter.StartSelectIemClickListner,ViewAppointmentAdapter.SelectIemCancelClickListner {
public HomeFragment() {
        // Required empty public constructor
    }
@Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container,
                             Bundle savedInstanceState) {
        ((NavigationViewActivity) getActivity()).setActionBarTitle("Home");
        View rootView = inflater.inflate(R.layout.activity_home, container, false);
 data_viewpatientlists = new ArrayList<>();
        viewpatientdataLists = new ArrayList<>();
        recyclerAppointmentlist = rootView.findViewById(R.id.recyclerAppointmentlist);
        recyclerAppointmentlist.setLayoutManager(new LinearLayoutManager(getContext(), LinearLayoutManager.VERTICAL, false));
        viewAppointmentAdapter = new ViewAppointmentAdapter(requireContext(), data_viewpatientlists, this, this, this);
data_viewpatientlists.clear();
                            viewPatientList();
}
 private void viewPatientList() {

//        progressDialog = new ProgressDialog(getContext());
//        progressDialog.setIndeterminate(true);
//        progressDialog.setMessage("Loading...");
//        progressDialog.setCanceledOnTouchOutside(false);
//        progressDialog.setCancelable(false);
//        progressDialog.show();

        String RegistrationNo = LoginId;
        final APIService service = RetroClass.getRetrofitInstance().create(APIService.class);
        Call<Patient_ViewPatientlist> call = service.ViewPatientList(RegistrationNo);
        Log.wtf("URL Called", call.request().url() + "");
        call.enqueue(new Callback<Patient_ViewPatientlist>() {
            @Override
            public void onResponse(Call<Patient_ViewPatientlist> call, Response<Patient_ViewPatientlist> response) {
                Log.e("response", new Gson().toJson(response.body()));
                if (response.isSuccessful()) {
                    Log.e("response", new Gson().toJson(response.body()));
                    Patient_ViewPatientlist patient_patientlist = response.body();
                    viewpatientdataLists = patient_patientlist.getData();
                    for (Data_Viewpatientlist view_patientList : viewpatientdataLists) {
                        String First_name = view_patientList.getFName();
                        String last_name = view_patientList.getLName();
                        String SlotFrom = view_patientList.getSlotFrom();
                        String SlotTo = view_patientList.getSlotTo();
                        String FromDate = view_patientList.getForDate();
                        String booking_id = view_patientList.getBookingId();
                        String doct_id = view_patientList.getDocId();
                        String profile_photo = view_patientList.getProfllePhoto();
                        DateFormat inputFormat = new SimpleDateFormat("yyyy-MM-dd");
                        DateFormat outputFormat = new SimpleDateFormat("dd-MMM-yyyy");

                        Date date = null;
                        try {
                            date = inputFormat.parse(FromDate);
                        } catch (ParseException e) {
                            e.printStackTrace();
                        }
                        String outputDateStr = outputFormat.format(date);
                        Data_Viewpatientlist data_doctorpatientlist = new Data_Viewpatientlist(booking_id, First_name, last_name, outputDateStr, SlotFrom, SlotTo);
                        data_viewpatientlists.add(data_doctorpatientlist);
                        Log.d("data_viewpatientlists", String.valueOf(data_viewpatientlists.size()));
                        recyclerAppointmentlist.setAdapter(viewAppointmentAdapter);

                        viewAppointmentAdapter.notifyDataSetChanged();
                    }
                }
                //   progressDialog.dismiss();
            }

            @Override
            public void onFailure(Call<Patient_ViewPatientlist> call, Throwable t) {
                Log.d("error", t.getMessage());
                //  progressDialog.dismiss();
            }
        });
    }

标签： androidandroid-fragments

解决方案

尝试这个：

首先在 onResponse() 中清除 'recyclerAppointmentlist' 的数据，然后添加新记录

它看起来像这样：

 call.enqueue(new Callback<Patient_ViewPatientlist>() {
        @Override
        public void onResponse(Call<Patient_ViewPatientlist> call, Response<Patient_ViewPatientlist> response) {
            Log.e("response", new Gson().toJson(response.body()));
            if (response.isSuccessful()) {
                viewpatientdataLists.clear()
                Patient_ViewPatientlist patient_patientlist = response.body();
                viewpatientdataLists = patient_patientlist.getData();

推荐阅读