如何使用addOnItemTouchListener在RecyclerView中创建上下文菜单

Question

当用户长按时如何使用addOnItemTouchListener在RecyclerView中创建上下文菜单？

我有这样的代码

public class AllDataFragment extends Fragment{
    List<GetDataAdapterRiwayat> GetDataAdapter1;
    RecyclerView recyclerView;
    RecyclerView.LayoutManager recyclerViewlayoutManager;
    private static final String TAG = MainActivity.class.getSimpleName();
    RecyclerView.Adapter recyclerViewadapterRiwayat;
    String FIXURL = "http://192.168.43.139/AndroidFileUpload/";
    String GET_JSON_DATA_HTTP_URL = FIXURL+"GetAllData.php";
    String JSON_ID_TEMPAT_PERCETAKAN = "id_tempat_percetakan";
    String JSON_NAMA_PERCETAKAN = "nama_percetakan";
    String JSON_LATITUDE = "latitude";
    String JSON_LONGITUDE = "longitude";
    String JSON_GAMBAR = "gambar";
    String JSON_STATUS = "status";
    String JSON_EMAIL1 = "email1";
    String JSON_EMAIL2 = "email2";
    String JSON_EMAIL3 = "email3";
    SessionManager session;
    RequestQueue requestQueue ;
    String email;
    public AllDataFragment() {
        // Required empty public constructor
    }
    @Override
    public void onActivityCreated(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        GetDataAdapter1 = new ArrayList<>();
        recyclerView = (RecyclerView) getView().findViewById(R.id.recyclerview2);
        recyclerView.setHasFixedSize(true);
        recyclerViewlayoutManager = new LinearLayoutManager(getActivity());
        recyclerView.setLayoutManager(recyclerViewlayoutManager);
        JSON_DATA_WEB_CALL();
        Log.d(TAG, "acoba nih1 : ");
        recyclerView.addOnItemTouchListener(new RecyclerTouchListener(getActivity().getApplicationContext(), recyclerView, new RecyclerTouchListener.ClickListener() {
            @Override
            public void onClick(View view, int position) {
                GetDataAdapterRiwayat GetDataAdapterRiwayat = GetDataAdapter1.get(position);
                Log.d(TAG, "acoba nih3 : ");
                Intent myIntent = new Intent(getActivity(), DetailRiwayatActivity.class);
                myIntent.putExtra("Gambar",GetDataAdapterRiwayat.getGambar());// getDataAdapter1 in your case
                myIntent.putExtra("IdTempatPercetakan",GetDataAdapterRiwayat.getIdTempatPercetakan());// getDataAdapter1 in your case
                myIntent.putExtra("NamaPercetakan",GetDataAdapterRiwayat.getNamaPercetakan());// getDataAdapter1 in your case
                myIntent.putExtra("Latitude",GetDataAdapterRiwayat.getLatitude());// getDataAdapter1 in your case
                myIntent.putExtra("Longitude",GetDataAdapterRiwayat.getLongitude());// getDataAdapter1 in your case
                myIntent.putExtra("Status",GetDataAdapterRiwayat.getStatus());// getDataAdapter1 in your case
                myIntent.putExtra("Email1",GetDataAdapterRiwayat.getEmail1());// getDataAdapter1 in your case
                myIntent.putExtra("Email2",GetDataAdapterRiwayat.getEmail2());// getDataAdapter1 in your case
                myIntent.putExtra("Email3",GetDataAdapterRiwayat.getEmail3());// getDataAdapter1 in your case
                startActivity(myIntent);
            }
            @Override
            public void onLongClick(View view, int position) {
            }
        }));
    }
    @Override
    public boolean onMenuItemClick(MenuItem item) {
        // Menu Item Clicked!
        return true;
    }
    public void JSON_DATA_WEB_CALL() {
        setSessionManager();
        CustomJsonArrayRequest request = new CustomJsonArrayRequest (GET_JSON_DATA_HTTP_URL  + "?&email="+email,
                new Response.Listener<JSONArray>() {
                    @Override
                    public void onResponse(JSONArray response) {
                        JSON_PARSE_DATA_AFTER_WEBCALL(response);
                    }
                },
                new Response.ErrorListener() {
                    @Override
                    public void onErrorResponse(VolleyError error) {
                    }
                });
        requestQueue = Volley.newRequestQueue(getActivity());
        requestQueue.add(request);
    }
    public void JSON_PARSE_DATA_AFTER_WEBCALL(JSONArray array){
        for(int i = 0; i<array.length(); i++) {
            GetDataAdapterRiwayat GetDataAdapter2 = new GetDataAdapterRiwayat();
            JSONObject json = null;
            try {
                json = array.getJSONObject(i);
                GetDataAdapter2.setIdTempatPercetakan(json.getString(JSON_ID_TEMPAT_PERCETAKAN));
                GetDataAdapter2.setNamaPercetakan(json.getString(JSON_NAMA_PERCETAKAN));
                GetDataAdapter2.setLatitude(json.getString(JSON_LATITUDE));
                GetDataAdapter2.setLongitude(json.getString(JSON_LONGITUDE));
                GetDataAdapter2.setGambar(json.getString(JSON_GAMBAR));
                GetDataAdapter2.setStatus(json.getString(JSON_STATUS));
                GetDataAdapter2.setEmail1(json.getString(JSON_EMAIL1));
                GetDataAdapter2.setEmail2(json.getString(JSON_EMAIL2));
                GetDataAdapter2.setEmail3(json.getString(JSON_EMAIL3));
            } catch (JSONException e) {
                e.printStackTrace();
            }
            GetDataAdapter1.add(GetDataAdapter2);
        }
        recyclerViewadapterRiwayat = new RecyclerViewAdapterRiwayat(GetDataAdapter1, getActivity());
        recyclerView.setAdapter(recyclerViewadapterRiwayat);
    }
    private void setSessionManager() {
        session = new SessionManager(getActivity().getApplicationContext());
        session.checkLogin();
        // get user data from session
        HashMap<String, String> user = session.getUserDetails();
        // email
        email = user.get(SessionManager.KEY_EMAILUSER);
    }
    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container,
                             Bundle savedInstanceState) {
        // Inflate the layout for this fragment
        return inflater.inflate(R.layout.activity_all_data, container, false);
    }
    @Override
    public void onClick(View v) {
    }
}

Answer 1

试一试：

注意：请确保将其添加到适配器类中。

在回收器视图适配器布局中添加一个带有一些 id 的ImageButton，例如 .. ivOverflowIcon .

在适配器类内。

ImageButton buttonViewOption;

内ViewHolder(View v)

buttonViewOption= (ImageButton) v.findViewById(R.id.ivOverflowIcon);

将此添加到菜单：res/menu/mycontextmenu.xml

    <?xml version="1.0" encoding="utf-8"?>
<menu xmlns:android="http://schemas.android.com/apk/res/android">
    <item
        android:id="@+id/menu1"
        android:title="Menu 1" />
    <item
        android:id="@+id/menu2"
        android:title="Menu 2" />
    <item
        android:id="@+id/menu3"
        android:title="Menu 3" />

</menu>

现在在适配器内部onBindViewHolder()使用以下代码。

holder.buttonViewOption.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                //creating a popup menu
                PopupMenu popup = new PopupMenu(mCtx, holder.buttonViewOption);
                //inflating menu from xml resource
                popup.inflate(R.menu.mycontextmenu);
                //adding click listener
                popup.setOnMenuItemClickListener(new PopupMenu.OnMenuItemClickListener() {
                    @Override
                    public boolean onMenuItemClick(MenuItem item) {
                        switch (item.getItemId()) {
                            case R.id.menu1:
                                //handle menu1 click
                                break;
                            case R.id.menu2:
                                //handle menu2 click
                                break;
                            case R.id.menu3:
                                //handle menu3 click
                                break;
                        }
                        return false;
                    }
                });
                //displaying the popup
                popup.show();
            }
        });

Answer 2

第 1 步：在您的 MainActivityClass 中.java

private RecyclerView recyclerSavedHotel;
private ArrayList<Integer> totalHotel;
private ArrayList<String> nameCity;
TextView tvNoSavedHotel;
RecyclerView.Adapter adapter;
private static final String TAG = "SavedHotelClass";
@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
    getSupportActionBar().setDisplayHomeAsUpEnabled(true);
    nameCity = new ArrayList();
    totalHotel = new ArrayList();
    nameCity.add("Ahmedabad");
    nameCity.add("Bhavnagar");
    nameCity.add("Mahuva");
    nameCity.add("Pune");
    nameCity.add("Bhavnagar");
    nameCity.add("Bhopal");
    nameCity.add("Rojkot");
    nameCity.add("Mahuva");
    nameCity.add("Agra");
    nameCity.add("Vadodra");
    totalHotel.add(1);
    totalHotel.add(2);
    totalHotel.add(4);
    totalHotel.add(6);
    totalHotel.add(8);
    totalHotel.add(20);
    totalHotel.add(11);
    totalHotel.add(23);
    totalHotel.add(21);
    totalHotel.add(3);
    if (nameCity.isEmpty() || totalHotel.isEmpty()) {
        tvNoSavedHotel.setVisibility(View.VISIBLE);
    }
    initContext();
}
private void initContext() {
    recyclerSavedHotel = (RecyclerView) findViewById(R.id.recyclerview_save_hotel);
    recyclerSavedHotel.setHasFixedSize(true);
    RecyclerView.LayoutManager layoutManager = new LinearLayoutManager(getApplicationContext());
    recyclerSavedHotel.setLayoutManager(layoutManager);
    adapter = new RecyclerViewAdapter(nameCity, totalHotel);
    recyclerSavedHotel.setAdapter(adapter);

}

第 2 步：回收器视图适配器.java

private ArrayList<String> nameCity;
private ArrayList<Integer> totalHotel;
public RecyclerViewAdapter(ArrayList<String> nameCity, ArrayList<Integer> totalHotel) {
    this.nameCity = nameCity;
    this.totalHotel = totalHotel;
}
@Override
public RecyclerViewAdapter.ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
    View view = LayoutInflater.from(parent.getContext()).inflate
            (R.layout.layout_saved_hotel, parent, false);
    return new ViewHolder(view);

}
@Override
public void onBindViewHolder(RecyclerViewAdapter.ViewHolder holder, int position) {
    holder.tvCityname.setText(nameCity.get(position));
    holder.tvTotalHotel.setText(totalHotel.get(position).toString());
}
@Override
public int getItemCount() {
    return nameCity.size();
}

public class ViewHolder extends RecyclerView.ViewHolder implements View.OnCreateContextMenuListener {
    TextView tvCityname, tvTotalHotel;
    public ViewHolder(View itemView) {
        super(itemView);
        tvCityname = (TextView) itemView.findViewById(R.id.tv_saved_hotel_city_name);
        tvTotalHotel = (TextView) itemView.findViewById(R.id.tv_total_saved_hotel);
        itemView.setOnCreateContextMenuListener(this);
    }
    @Override
    public void onCreateContextMenu(ContextMenu menu, View v, ContextMenu.ContextMenuInfo menuInfo) {
        menu.setHeaderTitle("Select The Action");
        menu.add(0, v.getId(), 0, "Call");//groupId, itemId, order, title
        menu.add(0, v.getId(), 0, "SMS");
    }
}

layout_saved_hotel

<android.support.v7.widget.CardView xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/tools"
xmlns:card_view="http://schemas.android.com/apk/res-auto"
android:id="@+id/cardview_saved_hotel"
android:layout_width="match_parent"
android:layout_height="wrap_content"
card_view:cardUseCompatPadding="true"
app:cardBackgroundColor="@color/colorWhite">
<LinearLayout
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="horizontal">
    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_margin="10dp"
        android:layout_weight="1"
        android:orientation="vertical">
        <TextView
            android:id="@+id/tv_saved_hotel_city_name"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:textColor="#000"
            android:textSize="20sp" />
        <LinearLayout
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:orientation="horizontal">
            <ImageView
                android:layout_width="15dp"
                android:layout_height="15dp"
                android:layout_marginRight="5dp"
                android:layout_marginTop="3dp"
                android:src="@mipmap/ic_heart_red" />
            <TextView
                android:id="@+id/tv_total_saved_hotel"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_marginRight="5dp" />
            <TextView
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:text="Hotel saved" />
        </LinearLayout>
    </LinearLayout>
    <ImageView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="center_vertical"
        android:src="@mipmap/ic_next_black" />
</LinearLayout>

主活动

 <android.support.v7.widget.RecyclerView
    android:id="@+id/recyclerview_save_hotel"
    android:layout_width="match_parent"
    android:layout_height="wrap_content">
</android.support.v7.widget.RecyclerView>