java - 通过ListView中的setOnItemSelectedListener获取项目值？

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我将自定义适配器设置为列表视图。现在，我想通过单击一个项目来获取项目名称，并将其传递给showLotDetails（）方法。项目的位置可能会改变listview，所以我无法根据位置获得项目的价值。

@Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {

        listview = v.findViewById(R.id.reserveListViewID);
        listview.setOnItemClickListener(this);
        dialog = new Dialog(getActivity());

        databaseReference = FirebaseDatabase.getInstance().getReference("Reserved List");
        userLotList = new ArrayList<>();
        customAdapter = new CustomAdapter(getActivity(), userLotList);
    }

    @Override
    public void onStart() {
        firebaseDatabase = FirebaseDatabase.getInstance();
        databaseReference.addValueEventListener(new ValueEventListener() {
            @Override
            public void onDataChange(@NonNull DataSnapshot dataSnapshot) {
                userLotList.clear();
                for(DataSnapshot dataSnapshot1: dataSnapshot.getChildren()){
                    StoreReservedData storeReservedData =dataSnapshot1.getValue(StoreReservedData.class);
                    userLotList.add(storeReservedData);
                }
                listview.setAdapter(customAdapter);
            }

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

        super.onStart();
    }

    **@Override
    public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
        showLotDetails(value);
    }**

    public void showLotDetails(String value){

    }

(Output) If I click this item

(Output) "DIU Parking Lot" will be shown in this textview

最佳答案

private List<Listview> listviews;

@Override
public void onBindViewHolder(@NonNull Viewholder holder, int position) {`

final Listview listview = listviews.get(position);

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

// here u can pass the position which will change for every single item in you adapter  
showLotDetails(position);// it's int


        }
    });


  }

关于java - 通过ListView中的setOnItemSelectedListener获取项目值？ ，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/60806065/

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Answer 1

private List<Listview> listviews;

@Override
public void onBindViewHolder(@NonNull Viewholder holder, int position) {`

final Listview listview = listviews.get(position);

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

// here u can pass the position which will change for every single item in you adapter  
showLotDetails(position);// it's int


        }
    });


  }