Wie Filter in Recyclerview basierend auf Spinner Artikelauswahl anwenden?

Question

Hallo ich habe eine Situation, die Bilder in einer Aktivität basierend auf spinner Auswahl geladen. Hier werde ich diese Bilder als ArrayList und Spinner Werte von API erhalten. Ich weiß nicht, wie man Filter hier basierend auf Spinnerauswahl anwendet. Bitte entscheide dich für eine Lösung. Unten ist mein Code.

Für Aktivität:

public class MedicalRecordsActivity extends BaseActivity implements MedicalRecordsView { 

@Inject 
MedicalRecordsPresenter mPresenter; 

@Bind(R.id.back_img_rl) 
RelativeLayout backImage; 

@Bind(R.id.tv_toolbartitle) 
TextView header; 

@Bind(R.id.upload_btn_layout) 
RelativeLayout uploadBtnLayout; 

@Bind(R.id.spinner_industry) 
Spinner categorySpinner; 

@Bind(R.id.images_recycler_view) 
RecyclerView recyclerView; 

List<MemberImageModel> arrayList; 
String patientID, imageType, title; 
EditText fileName; 
ProgressDialog categoryProgress, uploadProgress; 

List<String> uploadTypesList; 
ArrayAdapter<String> categoryAdapter; 
static String selectedSpinnerItem; 
File imageProfileFile; 

List<ProfileImagesModel> membersList; 
MedicalRecordsAdapter dataAdapter = null; 

List<String> Prescription = new ArrayList<>(); 

private static final int RC_CAMERA_PERM = 123; 
private static final int RC_GALLERY = 124; 
private static final int RC_SETTINGS_SCREEN = 125; 
private static final int RC_WRITE_EXTERNAL_STORAGE = 126; 

@Override 
protected void onCreate(Bundle savedInstanceState) { 
    super.onCreate(savedInstanceState); 
    setContentView(R.layout.activity_medical_records); 
    ButterKnife.bind(this); 
    activityComponent().inject(this); 
    mPresenter.attachView(this); 

    header.setText("Medical Records"); 
    uploadBtnLayout.setVisibility(View.VISIBLE); 
    patientID = PrefUtils.getPatientID(this); 
    categoryProgress = new ProgressDialog(this); 
    categoryProgress.setMessage(getString(R.string.loading)); 

    uploadProgress = new ProgressDialog(this); 
    uploadProgress.setMessage(getString(R.string.file_uploading)); 
} 

@Override 
public void onResume() { 
    super.onResume(); 
    callGetProfileApi(); 
    callUploadTypesApi(); 
} 

@Override 
public void onBackPressed() { 
    finish(); 
} 

@OnClick(R.id.back_img_rl) 
public void onBackClicked() { 
    finish(); 
} 

@Override 
public void getRecordType(UploadTypes response) { 
    if (response != null) { 
     if (response.isSuccess()) { 
      uploadTypesList = new ArrayList<>(); 
      for (UploadTypes.TypesInfo typesInfo : response.getResponseObject()) { 
       uploadTypesList.add(typesInfo.getDocumentname()); 
      } 
      loadSpinner(uploadTypesList); 

      categorySpinner.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() { 
       @Override 
       public void onItemSelected(AdapterView<?> parent, View view, int position, long id) { 
        selectedSpinnerItem = uploadTypesList.get(position); 
        dataAdapter.getFilter().filter(selectedSpinnerItem); 
        //callGetProfileApi(); 
       } 

       @Override 
       public void onNothingSelected(AdapterView<?> parent) { 

       } 
      }); 
     } 
    } 
} 

@Override 
public void showCategoryProgress() { 
    categoryProgress.show(); 
} 

@Override 
public void hideCategoryProgress() { 
    categoryProgress.dismiss(); 
} 

@Override 
public void showUploadProgress() { 
    uploadProgress.show(); 
} 

@Override 
public void hideUploadProgress() { 
    uploadProgress.dismiss(); 
} 

@Override 
public void showProfile(ProfileResponse response) { 
    if (response != null) { 
     if (response.isSuccess()) { 
      membersList = response.getResponseObject().get(0).getImages(); 
      setAdapter(); 
     } 
    } 
} 

@Override 
public void showProgress() { 

} 

@Override 
public void hideProgress() { 

} 

@Override 
public void showNoInternet() { 

} 

@Override 
public void showNoData() { 

} 

@Override 
public void showError() { 

} 

private void callUploadTypesApi() { 
    mPresenter.getRecordType(ApiConstants.PLATFORM_VAL, patientID, ApiConstants.ROLE_ID_VAL); 
} 

private void callGetProfileApi() { 
    mPresenter.getProfileDetails(patientID); 
} 

public static String getSelectedItem() { 
    return selectedSpinnerItem; 
} 

private void loadSpinner(List<String> categoryList) { 
    categoryAdapter = new ArrayAdapter<>(this, android.R.layout.simple_spinner_item, categoryList); 
    categoryAdapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item); 
    categorySpinner.setAdapter(categoryAdapter); 
} 

private void setAdapter() { 
    try { 
     RecyclerView.LayoutManager layoutManager = new GridLayoutManager(this, 2); 
     recyclerView.setLayoutManager(layoutManager); 
     MedicalRecordsAdapter dataAdapter = new MedicalRecordsAdapter(this, membersList); 
     recyclerView.setAdapter(dataAdapter); 
     /* dataAdapter.getFilter().filter(selectedSpinnerItem); 
     dataAdapter.notifyDataSetChanged();*/ 
    } catch (Exception e) { 
     e.printStackTrace(); 
    } 
}} 

Für Adapter:

public class MedicalRecordsAdapter extends RecyclerView.Adapter<MedicalRecordsAdapter.ViewHolder> implements Filterable { 

Context context; 
List<ProfileImagesModel> membersList, filterList; 
//CustomFilter filter; 

public MedicalRecordsAdapter(Context context, List<ProfileImagesModel> membersList) { 
    this.context = context; 
    this.membersList = membersList; 
    this.filterList = membersList; 
} 

@Override 
public MedicalRecordsAdapter.ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) { 
    View view = LayoutInflater.from(parent.getContext()).inflate(R.layout.adapter_patient_record, parent, false); 
    return new MedicalRecordsAdapter.ViewHolder(view); 
} 

@Override 
public void onBindViewHolder(MedicalRecordsAdapter.ViewHolder holder, int position) { 
    holder.recordName.setText(filterList.get(position).getTitle()); 
    holder.recordDate.setText(filterList.get(position).getCreateddate()); 
    String thumbnail = filterList.get(position).getImagepath(); 
    Glide.with(context) 
      .load(ApiEndpoint.IMAGE_URL + thumbnail) 
      .into(holder.thumbnail); 
} 

@Override 
public int getItemCount() { 
    return filterList.size(); 
} 

@Override 
public Filter getFilter() { 
    /*if (filter == null) { 
     filter = new CustomFilter(filterList, this); 
    } 
    return filter;*/ 
    return new Filter() { 
     @Override 
     protected FilterResults performFiltering(CharSequence constraint) { 
      String charString = constraint.toString(); 

      if (charString.isEmpty()) { 

       filterList = membersList; 
      } else { 

       List<ProfileImagesModel> filteredList = new ArrayList<>(); 

       for (ProfileImagesModel androidVersion : membersList) { 

        if (androidVersion.getType().contains(charString) /*|| androidVersion.getName().toLowerCase().contains(charString) || androidVersion.getVer().toLowerCase().contains(charString)*/) { 

         filteredList.add(androidVersion); 
        } 
       } 

       filterList = filteredList; 
      } 

      FilterResults filterResults = new FilterResults(); 
      filterResults.values = filterList; 
      return filterResults; 
     } 

     @Override 
     protected void publishResults(CharSequence constraint, FilterResults results) { 
      filterList = (List<ProfileImagesModel>) results.values; 
      notifyDataSetChanged(); 
     } 
    }; 
} 

public class ViewHolder extends RecyclerView.ViewHolder { 

    private TextView recordName; 
    private TextView recordDate; 
    private ImageView thumbnail; 

    public ViewHolder(View itemView) { 
     super(itemView); 
     recordName = (TextView) itemView.findViewById(R.id.small_card_record); 
     recordDate = (TextView) itemView.findViewById(R.id.small_card_date); 
     thumbnail = (ImageView) itemView.findViewById(R.id.imageview_small_card_thumbnail); 
    } 
}} 

Answer 1

entfernen getFilter() Methode von Ihrem Adpater und fügen Sie folgende Methode:

public void filter(String charText) { 
    charText = charText.toLowerCase(Locale.getDefault()); 
    membersList.clear(); 

    if (charText.length() == 0) { 

     membersList.addAll(filterList); 

    } else { 
     for (int i=0; i<filterList.size(); i++) { 
      ProfileImagesModel androidVersion = filterList.get(i); 
      if (androidVersion.getType().toLowerCase(Locale.getDefault()).contains(charText)) { 
       membersList.add(androidVersion); 
      } 
     } 
    } 
    notifyDataSetChanged(); 
} 

A nd nennen folgende Verfahren in setOnItemSelectedListener()

dataAdapter.filter(selectedSpinnerItem);