android - android：包含回收器视图的片段中的复选框使用情况

Question

在我关于健康的应用程序中，有一个片段，医生可以在其中添加或拒绝患者到他/她自己的患者列表中。我使用 arecyclerView来显示所有患者，在每个项目中都有关于患者的信息，例如姓名、生日、城市和checkBox显示患者是否添加的信息。页面顶部还有一个checkBox选择所有患者，也有 add 和 deny textViews。我想使用这些textViews来添加或拒绝他们自己选择的患者checkBoxes。单击添加后textView，患者将添加到 Firebase 数据库。我无法做到这些功能。我该怎么办？这是我的代码：

public class FragmentHastaBasvurulari extends Fragment {

private ArrayList<String> hastaAdi=new ArrayList<>();
private ArrayList<String> hastaOzellikleri=new ArrayList<>();
private ArrayList<String> hastaliklar=new ArrayList<>();
private ArrayList<String> hastaOnayi=new ArrayList<>();
private ArrayList<Users> hastalar=new ArrayList<>();


private FirebaseAuth mAuth;
private FirebaseUser firebaseUser;
private FirebaseDatabase database;
private DatabaseReference myRef;
private RecyclerView rvHastaBasvuru;
  private CheckBox checkBoxHepsiniSec;

private TextView tvReddet,tvOnayla;


@Override
public void onViewCreated(@NonNull View view, @Nullable Bundle savedInstanceState) {
    super.onViewCreated(view, savedInstanceState);

    getActivity().setTitle("Hasta Başvuruları");

}

@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
                         Bundle savedInstanceState) {
    View view = inflater.inflate(R.layout.fragment_hasta_basvurulari, container, false);

    mAuth=FirebaseAuth.getInstance();
    firebaseUser=mAuth.getCurrentUser();
    database=FirebaseDatabase.getInstance();
    myRef=database.getReference();
    rvHastaBasvuru=(RecyclerView) view.findViewById(R.id.rvHastaBasvuru);
            checkBoxHepsiniSec=(CheckBox) view.findViewById(R.id.checkBoxHepsiniSec); 

    tvOnayla=(TextView) view.findViewById(R.id.tvOnayla);
    tvReddet=(TextView) view.findViewById(R.id.tvReddet);



    myRef.child("kullanicilar")
            .child(firebaseUser.getUid()).child("hastalar").addValueEventListener(new ValueEventListener() {
        @Override
        public void onDataChange(@NonNull DataSnapshot dataSnapshot) {

            for(DataSnapshot ds: dataSnapshot.getChildren()){
                EklenecekHasta eklenecekHasta = ds.getValue(EklenecekHasta.class);

                    DatabaseReference hastaRef= FirebaseDatabase.getInstance().getReference().child("kullanicilar").child(eklenecekHasta.getUserId());
                    hastaRef.addValueEventListener(new ValueEventListener() {
                        @Override
                        public void onDataChange(DataSnapshot dataSnapshot) {
                            if (dataSnapshot.exists()) {
                                Users hasta = dataSnapshot.getValue(Users.class);

                                String sehir, dogumTarihi,hastaliklar1;

                                if(hasta.getSehir().equals("Seçiniz")){
                                    sehir="---";
                                } else {
                                    sehir=hasta.getSehir();
                                }
                                if(hasta.getDogumtarihi().equals("../../....")){
                                    dogumTarihi="---";
                                } else {
                                    dogumTarihi=hasta.getDogumtarihi();
                                }
                                if(hasta.getHastaliklar().equals("")){
                                    hastaliklar1="---";
                                } else {
                                    hastaliklar1=hasta.getHastaliklar();
                                }
                                hastaAdi.add(hasta.getAd()+" "+hasta.getSoyad());
                                hastaOzellikleri.add(hasta.getCinsiyet()+"  "+sehir+"  "+dogumTarihi);
                                hastaliklar.add(hastaliklar1);
                                hastaOnayi.add(hasta.getOnay());
                                hastalar.add(hasta);

                            }

                            rvHastaBasvuru.setAdapter(adapter);
                            rvHastaBasvuru.setLayoutManager(new LinearLayoutManager(getContext()));
                            adapter.notifyDataSetChanged();
                        }

                        @Override
                        public void onCancelled(DatabaseError error) {
                        }
                    });

            }


        }

        @Override
        public void onCancelled(@NonNull DatabaseError databaseError) {
        }


        HastaListesiAdapter adapter= new HastaListesiAdapter(getContext(),hastaAdi,hastaOzellikleri,hastaliklar,hastaOnayi,hastalar);

    });



    tvOnayla.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {


        }
    });

    tvReddet.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {


        }
    });



    return view;
}

这是我的适配器类代码：

public class HastaListesiAdapter extends RecyclerView.Adapter<HastaListesiAdapter.ViewHolder>{

private static final String TAG="HekimListesiAdapter";

private ArrayList<String> hastaAdi=new ArrayList<>();
private ArrayList<String> hastaOzellikleri=new ArrayList<>();
private ArrayList<String> hastaliklar=new ArrayList<>();
private ArrayList<String> hastaOnayi=new ArrayList<>();
private ArrayList<Users> hastalar=new ArrayList<>();
private Context myContext;


public HastaListesiAdapter(Context myContext, ArrayList<String> hastaAdi, ArrayList<String> hastaOzellikleri,
                           ArrayList<String> hastaliklar,ArrayList<String> hastaOnayi,ArrayList<Users> hastalar) {
    this.hastaAdi = hastaAdi;
    this.hastaOzellikleri = hastaOzellikleri;
    this.myContext = myContext;
    this.hastaliklar=hastaliklar;
    this.hastaOnayi=hastaOnayi;
    this.hastalar=hastalar;
}



@NonNull
@Override
public ViewHolder onCreateViewHolder(@NonNull ViewGroup parent, int i) {

    View view= LayoutInflater.from(parent.getContext()).inflate(R.layout.hasta_item,parent,false);
    ViewHolder holder=new ViewHolder(view);

    return holder;
}

@Override
public void onBindViewHolder(@NonNull final ViewHolder holder, final int i) {


    holder.itemHastaAd.setText(hastaAdi.get(i));
    holder.itemHastaOz.setText(hastaOzellikleri.get(i));
    holder.itemHastaliklar.setText(hastaliklar.get(i));

    //Hasta hekim tarafından onaylanmış mı onaylanmamış mı
    if(hastaOnayi.get(i).equals("evet")){
        holder.checkBoxHastaSec.setChecked(true);
    } else if(hastaOnayi.get(i).equals("hayır")){
        holder.checkBoxHastaSec.setChecked(false);
    }

    // CheckBox ın tıklanması üzerine yapılacak işlem

    holder.checkBoxHastaSec.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
        @Override
        public void onCheckedChanged(CompoundButton buttonView,boolean isChecked) {

            String secilimi;
            if(buttonView.isChecked()){
                secilimi="evet";
            } else {
                secilimi="hayır";
            }

        }



    });




}

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


public class ViewHolder extends RecyclerView.ViewHolder {

    TextView itemHastaAd,itemHastaOz,itemHastaliklar;
    CheckBox checkBoxHastaSec;

    public ViewHolder(@NonNull View itemView) {
        super(itemView);

        itemHastaAd=itemView.findViewById(R.id.itemHastaAd);
        itemHastaOz= itemView.findViewById(R.id.itemHastaOz);
        itemHastaliklar=itemView.findViewById(R.id.itemHastaliklar);
        checkBoxHastaSec=itemView.findViewById(R.id.checkBoxHastaSec);
    }
}

标签： androidcheckboxandroid-recyclerview

Answer 1

我建议你用你的自定义模型的一个数组列表替换你的字符串数组列表，你也可以在你的复选框中使用一个布尔值来表示数据。例如创建一个这样的模型：

class YourModel()
{
  String hastaAdi;
  String hastaOzellikleri;
  //... another variables
  Boolean isAdded;

  //... set & get or other methods
}

现在您应该将 ArrayList 传递给您的适配器，并通过此 arrayList 为您的 recyclerView 小部件设置值。然后您可以使用 isAdded 布尔值初始化或更改复选框值。