我遇到了听众的问题,我尝试了一切,但仍然没有工作。
RecyclerView在片段中,因为我使用的是导航抽屉活动,在RecyclerView的项目中我也有一个按钮,但是我想让项目中的点击监听器从标题中获取文本(项目的名称)。
这里我将把代码与我拥有的监听器(适配器,主要活动和片段的类)放在一起。
这是peliculas_mainAdapter:
package com.squaresoftware.mirapelis.adapters;
import android.content.Context;
import android.support.v7.widget.RecyclerView;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.Button;
import android.widget.TextView;
import android.widget.Toast;
import com.android.volley.toolbox.NetworkImageView;
import com.squaresoftware.mirapelis.Datasets.peliculas_main;
import com.squaresoftware.mirapelis.R;
import com.squaresoftware.mirapelis.Utils.NetworkController;
import java.util.List;
/**
* Created by carrera on 14/08/17.
*/
public class peliculas_mainAdapter extends RecyclerView.Adapter<peliculas_mainAdapter.MyViewHolder> {
private List<peliculas_main> feedsList;
private Context context;
private LayoutInflater inflater;
public peliculas_mainAdapter(Context context, List<peliculas_main> feedsList) {
this.context = context;
this.feedsList = feedsList;
inflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
}
@Override
public MyViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
View rootView = inflater.inflate(R.layout.item_lst_peliculas, parent, false);
return new MyViewHolder(rootView);
}
@Override
public void onBindViewHolder(MyViewHolder holder, final int position) {
peliculas_main feeds = feedsList.get(position);
//Pass the values of feeds object to Views
holder.title.setText(feeds.getTitle());
holder.content.setText(feeds.getCategoria());
holder.imageview.setImageUrl(feeds.getImage(), NetworkController.getInstance(context).getImageLoader());
}
@Override
public int getItemCount() {
return feedsList.size();
}
public class MyViewHolder extends RecyclerView.ViewHolder implements View.OnClickListener {
public TextView content, title;
public NetworkImageView imageview;
public Button btn_accion;
public MyViewHolder(View itemView) {
super(itemView);
title = (TextView) itemView.findViewById(R.id.name);
content = (TextView) itemView.findViewById(R.id.categoria);
btn_accion = (Button)itemView.findViewById(R.id.btn_go);
// Volley's NetworkImageView which will load Image from URL
imageview = (NetworkImageView) itemView.findViewById(R.id.thumbnail);
itemView.setOnClickListener(this);
}
@Override
public void onClick(View v) {
Toast.makeText(context, "lol", Toast.LENGTH_SHORT);
}
}
}
这是片段(Peliculas)的类:
package layout;
import android.content.Context;
import android.net.Uri;
import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentTransaction;
import android.support.v7.widget.LinearLayoutManager;
import android.support.v7.widget.RecyclerView;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.AdapterView;
import android.widget.Button;
import android.widget.ListView;
import android.widget.TextView;
import android.widget.Toast;
import com.android.volley.RequestQueue;
import com.android.volley.Response;
import com.android.volley.VolleyError;
import java.util.ArrayList;
import java.util.List;
import com.android.volley.toolbox.JsonArrayRequest;
import com.android.volley.toolbox.StringRequest;
import com.android.volley.toolbox.Volley;
import com.squaresoftware.mirapelis.Datasets.peliculas_main;
import com.squaresoftware.mirapelis.R;
import com.squaresoftware.mirapelis.Utils.NetworkController;
import com.squaresoftware.mirapelis.adapters.peliculas_mainAdapter;
import org.json.JSONArray;
import org.json.JSONObject;
/**
* A simple {@link Fragment} subclass.
* Activities that contain this fragment must implement the
* {@link Peliculas.OnFragmentInteractionListener} interface
* to handle interaction events.
* Use the {@link Peliculas#newInstance} factory method to
* create an instance of this fragment.
*/
public class Peliculas extends Fragment {
// TODO: Rename parameter arguments, choose names that match
// the fragment initialization parameters, e.g. ARG_ITEM_NUMBER
private static final String ARG_PARAM1 = "param1";
private static final String ARG_PARAM2 = "param2";
RequestQueue queue;
String url = "http://pruebaswsp.000webhostapp.com/json/AllMoviesResolver.php";
RecyclerView recyclerView;
List<peliculas_main> feedsList = new ArrayList<peliculas_main>();
peliculas_mainAdapter adapter;
static String MovieTitle;
View view2;
// TODO: Rename and change types of parameters
private String mParam1;
private String mParam2;
private OnFragmentInteractionListener mListener;
public Peliculas() {
// Required empty public constructor
}
/**
* Use this factory method to create a new instance of
* this fragment using the provided parameters.
*
* @param param1 Parameter 1.
* @param param2 Parameter 2.
* @return A new instance of fragment Peliculas.
*/
// TODO: Rename and change types and number of parameters
public static Peliculas newInstance(String param1, String param2) {
Peliculas fragment = new Peliculas();
Bundle args = new Bundle();
args.putString(ARG_PARAM1, param1);
args.putString(ARG_PARAM2, param2);
fragment.setArguments(args);
return fragment;
}
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
if (getArguments() != null) {
mParam1 = getArguments().getString(ARG_PARAM1);
mParam2 = getArguments().getString(ARG_PARAM2);
}
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View view = inflater.inflate(R.layout.fragment_peliculas, container, false);
view2 = view;
//Initialize RecyclerView
recyclerView = (RecyclerView) view.findViewById(R.id.lst_peliculas_main);
adapter = new peliculas_mainAdapter(getActivity(), feedsList);
recyclerView.setLayoutManager(new LinearLayoutManager(getActivity()));
recyclerView.setAdapter(adapter);
//Getting Instance of Volley Request Queue
queue = NetworkController.getInstance(getActivity()).getRequestQueue();
//Volley's inbuilt class to make Json array request
JsonArrayRequest newsReq = new JsonArrayRequest(url, new Response.Listener<JSONArray>() {
@Override
public void onResponse(JSONArray response) {
for (int i = 0; i < response.length(); i++) {
try {
JSONObject obj = response.getJSONObject(i);
peliculas_main feeds = new peliculas_main(obj.getString("Title"), obj.getString("Categoria"), obj.getString("Image"));
// adding movie to movies array
feedsList.add(feeds);
} catch (Exception e) {
System.out.println(e.getMessage());
} finally {
//Notify adapter about data changes
adapter.notifyItemChanged(i);
}
}
}
}, new Response.ErrorListener() {
@Override
public void onErrorResponse(VolleyError error) {
System.out.println(error.getMessage());
}
});
//Adding JsonArrayRequest to Request Queue
queue.add(newsReq);
return view;
}
// TODO: Rename method, update argument and hook method into UI event
public void onButtonPressed(Uri uri) {
if (mListener != null) {
mListener.onFragmentInteraction(uri);
}
}
@Override
public void onAttach(Context context) {
super.onAttach(context);
if (context instanceof OnFragmentInteractionListener) {
mListener = (OnFragmentInteractionListener) context;
} else {
throw new RuntimeException(context.toString()
+ " must implement OnFragmentInteractionListener");
}
}
@Override
public void onDetach() {
super.onDetach();
mListener = null;
}
/**
* This interface must be implemented by activities that contain this
* fragment to allow an interaction in this fragment to be communicated
* to the activity and potentially other fragments contained in that
* activity.
* <p>
* See the Android Training lesson <a href=
* "http://developer.android.com/training/basics/fragments/communicating.html"
* >Communicating with Other Fragments</a> for more information.
*/
public interface OnFragmentInteractionListener {
// TODO: Update argument type and name
void onFragmentInteraction(Uri uri);
}
public static String getVariable()
{
String CategTrim = MovieTitle.replaceAll("\\s+","%20");
return CategTrim;
}
}
以下是MainActivity:
package com.squaresoftware.mirapelis;
import android.net.Uri;
import android.os.Bundle;
import android.support.design.widget.FloatingActionButton;
import android.support.design.widget.Snackbar;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentTransaction;
import android.view.View;
import android.support.design.widget.NavigationView;
import android.support.v4.view.GravityCompat;
import android.support.v4.widget.DrawerLayout;
import android.support.v7.app.ActionBarDrawerToggle;
import android.support.v7.app.AppCompatActivity;
import android.support.v7.widget.Toolbar;
import android.view.Menu;
import android.view.MenuItem;
import android.widget.AdapterView;
import android.widget.Toast;
import layout.Busqueda;
import layout.Categorias;
import layout.Configuracion;
import layout.Peliculas;
import static com.squaresoftware.mirapelis.R.layout.activity_main;
public class MainActivity extends AppCompatActivity
implements NavigationView.OnNavigationItemSelectedListener, Peliculas.OnFragmentInteractionListener, Categorias.OnFragmentInteractionListener, Configuracion.OnFragmentInteractionListener {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(activity_main);
Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
if (savedInstanceState == null) {
getSupportFragmentManager().beginTransaction().replace(R.id.Contenedor, new Peliculas()).commit();
}
/*FloatingActionButton fab = (FloatingActionButton) findViewById(R.id.fab);
fab.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
Snackbar.make(view, "LOL", Snackbar.LENGTH_LONG)
.setAction("Action", null).show();
}
});*/
DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout);
ActionBarDrawerToggle toggle = new ActionBarDrawerToggle(
this, drawer, toolbar, R.string.navigation_drawer_open, R.string.navigation_drawer_close);
drawer.setDrawerListener(toggle);
toggle.syncState();
NavigationView navigationView = (NavigationView) findViewById(R.id.nav_view);
navigationView.setNavigationItemSelectedListener(this);
navigationView.setCheckedItem(R.id.nav_peliculas);
getSupportActionBar().setTitle("Peliculas");
}
@Override
public void onBackPressed() {
DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout);
if (drawer.isDrawerOpen(GravityCompat.START)) {
drawer.closeDrawer(GravityCompat.START);
} else {
super.onBackPressed();
}
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
// Handle action bar item clicks here. The action bar will
// automatically handle clicks on the Home/Up button, so long
// as you specify a parent activity in AndroidManifest.xml.
int id = item.getItemId();
//noinspection SimplifiableIfStatement
if (id == R.id.action_settings) {
return true;
}
return super.onOptionsItemSelected(item);
}
@SuppressWarnings("StatementWithEmptyBody")
@Override
public boolean onNavigationItemSelected(MenuItem item) {
int id = item.getItemId();
Fragment fragment = null;
boolean FragmentoSeleccionado = false;
if (id == R.id.nav_peliculas) {
fragment = new Peliculas();
FragmentoSeleccionado = true;
} else if (id == R.id.nav_categorias) {
fragment = new Categorias();
FragmentoSeleccionado = true;
} else if (id == R.id.nav_buscar){
fragment = new Busqueda();
FragmentoSeleccionado = true;
} else if (id == R.id.nav_share) {
} else if (id == R.id.nav_config) {
fragment = new Configuracion();
FragmentoSeleccionado = true;
}
if(FragmentoSeleccionado){
getSupportFragmentManager().beginTransaction().replace(R.id.Contenedor, fragment).commit();
item.setChecked(true);
getSupportActionBar().setTitle(item.getTitle());
}
DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout);
drawer.closeDrawer(GravityCompat.START);
return true;
}
@Override
public void onFragmentInteraction(Uri uri) {
}
}
以下是RecyclerView的项目:
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:padding="8dp"
android:id="@+id/lay_lst_peliculas">
<com.android.volley.toolbox.NetworkImageView
android:id="@+id/thumbnail"
android:layout_width="80dp"
android:layout_height="80dp"
android:layout_alignParentLeft="true"
android:layout_marginRight="8dp" />
<TextView
android:id="@+id/name"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignTop="@+id/thumbnail"
android:layout_toRightOf="@+id/thumbnail"
android:clickable="false"
android:fontFamily="sans-serif-condensed"
android:textColor="#181818"
android:textSize="15dp"
android:textStyle="bold" />
<TextView
android:id="@+id/categoria"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:fontFamily="sans-serif-condensed"
android:textColor="#484848"
android:textSize="13dp"
android:textStyle="bold"
android:layout_centerVertical="true"
android:layout_alignParentRight="true"
android:layout_alignParentEnd="true"
android:layout_toEndOf="@+id/thumbnail"
android:layout_toRightOf="@+id/thumbnail" />
<Button
android:id="@+id/btn_go"
android:layout_width="50dp"
android:layout_height="40dp"
android:layout_alignBottom="@+id/thumbnail"
android:layout_alignParentEnd="true"
android:layout_alignParentRight="true"
android:text="Ver" />
</RelativeLayout>
我是Java的新手,我不得不说这很难。