recyclerview no showing data of firebase

recyclerview no showing data of firebase - java

I try to show data of firebase on a
recycler View but no work please help me what can to be the problem?
my code is down, I can to see space result on my view but not see data
/**
* Create a new RecyclerView adapter that listens to a Firestore Query. See {#link
* FirestoreRecyclerOptions} for configuration options.
*
* #param options
*/
public ClienteAdapter(#NonNull FirestoreRecyclerOptions<cliente> options) {
super(options);
}
#Override
protected void onBindViewHolder(#NonNull ViewHolder viewHolder, int position, #NonNull cliente cli) {
viewHolder.name.setText(cli.getName());
viewHolder.address.setText(cli.getAddress());
viewHolder.phone.setText(cli.getPhone());
viewHolder.product.setText(cli.getProduct());
}
#NonNull
#Override
public ViewHolder onCreateViewHolder(#NonNull ViewGroup parent, int viewType) {
View v = LayoutInflater.from(parent.getContext()).inflate(R.layout.view_cliente_single, parent, false);
return new ViewHolder (v);
}
public class ViewHolder extends RecyclerView.ViewHolder {
TextView name, address, phone, product;
public ViewHolder(#NonNull View itemView) {
super(itemView);
name = itemView.findViewById(R.id.nombre);
address = itemView.findViewById(R.id.direccion);
phone = itemView.findViewById(R.id.telefono);
product = itemView.findViewById(R.id.producto);
}
}
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
<TextView
android:id="#+id/nombre"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:text="Nombre" />
<TextView
android:id="#+id/direccion"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:text="Direccion" />
<TextView
android:id="#+id/telefono"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:text="Telefono" />
<TextView
android:id="#+id/producto"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:text="Producto" />
</LinearLayout>
here more code class
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginStart="16dp"
android:layout_marginTop="16dp"
android:layout_marginEnd="16dp"
android:layout_marginBottom="16dp"
android:orientation="vertical"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent">
<Button
android:id="#+id/btn_inv"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="Inventario" />
<Button
android:id="#+id/btn_compras"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="Compras" />
<Button
android:id="#+id/btn_sorteos"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="Sorteos" />
<androidx.recyclerview.widget.RecyclerView
android:id="#+id/recyclerViewSingle"
android:layout_width="wrap_content"
android:layout_height="wrap_content" />
</LinearLayout>
here more code class
Button btn_inv;
RecyclerView mRecycler;
ClienteAdapter mAdapter;
FirebaseFirestore mFirestore;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
mFirestore = FirebaseFirestore.getInstance();
mRecycler = findViewById(R.id.recyclerViewSingle);
mRecycler.setLayoutManager(new LinearLayoutManager(this));
Query query = mFirestore.collection("cliente");
FirestoreRecyclerOptions<cliente> firestoreRecyclerOptions =
new FirestoreRecyclerOptions.Builder<cliente>().setQuery(query, cliente.class).build();
mAdapter = new ClienteAdapter(firestoreRecyclerOptions);
mAdapter.notifyDataSetChanged();
mRecycler.setAdapter(mAdapter);
btn_inv = findViewById(R.id.btn_inv);
btn_inv.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
startActivity(new Intent(MainActivity.this, inventario.class)); }
});
}
#Override
protected void onStart() {
super.onStart();
mAdapter.startListening();
}
#Override
protected void onStop() {
super.onStop();
mAdapter.stopListening();
}
layout inventario code here
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginStart="16dp"
android:layout_marginTop="16dp"
android:layout_marginEnd="16dp"
android:layout_marginBottom="16dp"
android:orientation="vertical"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent">
<EditText
android:id="#+id/nombre"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:ems="10"
android:hint="nombre"
android:inputType="textPersonName" />
<EditText
android:id="#+id/direccion"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:ems="10"
android:hint="direccion"
android:inputType="textPersonName" />
<EditText
android:id="#+id/telefono"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:ems="10"
android:hint="telefono"
android:inputType="textPersonName" />
<EditText
android:id="#+id/producto"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:ems="10"
android:hint="producto"
android:inputType="textPersonName" />
<Space
android:layout_width="match_parent"
android:layout_height="15dp" />
<Button
android:id="#+id/btn_act"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="Actualizar" />
<Button
android:id="#+id/btn_guar"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="Guardar" />
<Button
android:id="#+id/btn_eli"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="Eliminar" />
<Button
android:id="#+id/btn_bus"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="Buscar" />
<Button
android:id="#+id/btn_todo"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="Ver Todos" />
</LinearLayout>
the class inventario code here
Button btn_act, btn_guar, btn_eli, btn_bus, btn_todo;
EditText nombre, direccion, telefono, producto;
private
more code
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_inventario);
this.setTitle("Zona Inventario");
getSupportActionBar().setDisplayHomeAsUpEnabled(true);
mfirestore = FirebaseFirestore.getInstance();
nombre = findViewById(R.id.nombre);
direccion = findViewById(R.id.direccion);
telefono = findViewById(R.id.telefono);
producto = findViewById(R.id.producto);
btn_act = findViewById(R.id.btn_act);
btn_guar = findViewById(R.id.btn_guar);
btn_eli = findViewById(R.id.btn_eli);
btn_bus = findViewById(R.id.btn_bus);
btn_todo = findViewById(R.id.btn_todo);
btn_guar.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
String namecli = nombre.getText().toString().trim();
String dircli = direccion.getText().toString().trim();
String telcli = telefono.getText().toString().trim();
String procli = producto.getText().toString().trim();
if (namecli.isEmpty() && dircli.isEmpty() && telcli.isEmpty() && procli.isEmpty()) {
Toast.makeText(getApplicationContext(), "Ingresar Los Datos", Toast.LENGTH_SHORT).show();
} else {
postDatos(namecli, dircli, telcli, procli);
}
}
});
}
private void postDatos(String namecli, String dircli, String telcli, String procli) {
Map<String, Object> map = new HashMap<>();
map.put("nombre", namecli);
map.put("direccion", dircli);
map.put("telefono", telcli);
map.put("producto", procli);
mfirestore.collection("cliente").add(map).addOnSuccessListener(new OnSuccessListener<DocumentReference>() {
#Override
public void onSuccess(DocumentReference documentReference) {
Toast.makeText(inventario.this, "Creado Exitosamente!", Toast.LENGTH_SHORT).show();
finish();
}
}).addOnFailureListener(new OnFailureListener() {
#Override
public void onFailure(#NonNull Exception e) {
Toast.makeText(inventario.this, "Error al Ingresar", Toast.LENGTH_SHORT).show();
}
});
}
#Override
public boolean onSupportNavigateUp() {
onBackPressed();
return false;
}
please help me, what the problem on my program?

Related

how to get data from mysql database into recycler view?

I am making an app that let users create meetings and I would like the details of the meeting (eg name, type, location) in a recycler view.I ran the php code by itself and was able to get the values from the database.
Currently, I am getting an error of
java.lang.NullPointerException: Attempt to invoke virtual method 'void android.widget.TextView.setText(java.lang.CharSequence)' on a null object reference
at in recyclerviewAdapter
holder.Name.setText(users.getName());
holder.Type.setText(users.getType());
holder.Location.setText(users.getLocation());
which is linked to
public class Users {
private String name,type,location;
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getType() {
return type;
}
public void setType(String type) {
this.type = type;
}
public String getLocation() {
return location;
}
public void setLocation(String location) {
this.location = location;
}
}
recyclerviewAdapter
public class UserAdapter extends RecyclerView.Adapter<UserAdapter.UserHolder>{
Context context;
List<Users> usersList;
public UserAdapter(Context context, List<Users> usersList) {
this.context = context;
this.usersList = usersList;
}
#NonNull
#Override
public UserHolder onCreateViewHolder(#NonNull ViewGroup parent, int viewType) {
View userLayout= LayoutInflater.from(parent.getContext()).inflate(R.layout.activity_main2,parent,false);
return new UserHolder(userLayout);
}
#Override
public void onBindViewHolder(#NonNull UserHolder holder, int position) {
Users users=usersList.get(position);
holder.Name.setText(users.getName());
holder.Type.setText(users.getType());
holder.Location.setText(users.getLocation());
}
#Override
public int getItemCount() {
return usersList.size();
}
public class UserHolder extends RecyclerView.ViewHolder{
TextView Name,Type,Location;
public UserHolder(#NonNull View itemView){
super(itemView);
Name=itemView.findViewById(R.id.textTitle);
Type=itemView.findViewById(R.id.textType);
Location=itemView.findViewById(R.id.textLocation);
}
}
}
main activity code
public class MainActivity2 extends AppCompatActivity {
private static final String URL = "http://10.0.2.2/mad/activitydisplay.php";
RecyclerView recyclerView;
UserAdapter userAdapter;
List<Users> usersList;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main2);
recyclerView = findViewById(R.id.recylcerList);
recyclerView.setHasFixedSize(true);
recyclerView.setLayoutManager(new LinearLayoutManager(this));
usersList=new ArrayList<>();
LoadAllUser();
}
private void LoadAllUser() {
JsonArrayRequest request =new JsonArrayRequest(URL, new Response.Listener<JSONArray>() {
#Override
public void onResponse(JSONArray array) {
for (int i=0;i<array.length();i++){
try {
JSONObject object=array.getJSONObject(i);
String name=object.getString("eventname").trim();
String type=object.getString("type").trim();
String location=object.getString("location").trim();
Users user= new Users();
user.setName(name);
user.setType(type);
user.setLocation(location);
usersList.add(user);
} catch (JSONException e) {
e.printStackTrace();
}
}
userAdapter=new UserAdapter(MainActivity2.this,usersList);
recyclerView.setAdapter(userAdapter);
}
},new Response.ErrorListener(){
#Override
public void onErrorResponse(VolleyError error){
Toast.makeText(MainActivity2.this, error.toString(), Toast.LENGTH_SHORT).show();
}
});
RequestQueue requestQueue=Volley.newRequestQueue(MainActivity2.this);
requestQueue.add((request));
}
}
php code to get data from table
$sql="SELECT * FROM `activitytable` ";
$result=mysqli_query($conn,$sql);
$user=array();
while($row = mysqli_fetch_assoc($result)){
$index['eventname']=$row['eventname'];
$index['type']=$row['type'];
$index['location']=$row['location'];
array_push($user, $index);
}
echo json_encode($user);
activity_main2.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".MainActivity2">
<androidx.recyclerview.widget.RecyclerView
android:id="#+id/recylcerList"
android:layout_width="match_parent"
android:layout_height="match_parent" />
</LinearLayout>
activity_list resource file
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="match_parent">
<androidx.cardview.widget.CardView
android:layout_width="match_parent"
android:layout_height="wrap_content" >
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_margin="16dp"
android:orientation="vertical">
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center_vertical"
android:orientation="horizontal" >
<TextView
style="bold"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="Title:"
android:textColor="#color/black"
android:textSize="24dp" />
<TextView
android:id="#+id/textTitle"
style="bold"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textColor="#color/black"
android:textSize="24dp" />
</LinearLayout>
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center_vertical"
android:orientation="horizontal" >
<TextView
style="bold"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Type:"
android:textColor="#color/black"
android:textSize="24dp" />
<TextView
android:id="#+id/textType"
style="bold"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textColor="#color/black"
android:textSize="24dp" />
</LinearLayout>
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center_vertical"
android:orientation="horizontal" >
<TextView
style="bold"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Location:"
android:textColor="#color/black"
android:textSize="24dp" />
<TextView
android:id="#+id/textLocation"
style="bold"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textColor="#color/black"
android:textSize="24dp" />
</LinearLayout>
</LinearLayout>
</androidx.cardview.widget.CardView>
</LinearLayout>

instead of
public UserHolder onCreateViewHolder(#NonNull ViewGroup parent, int viewType) {
View userLayout= LayoutInflater.from(parent.getContext()).inflate(R.layout.activity_main2,parent,false);
return new UserHolder(userLayout);
}
use this
public UserHolder onCreateViewHolder(#NonNull ViewGroup parent, int viewType) {
View userLayout= LayoutInflater.from(parent.getContext()).inflate(R.layout.activity_list ,parent,false);
return new UserHolder(userLayout);
}
because activity_main2 doesn't contain R.id.textTitle,R.id.textType,R.id.textLocation

check your xml(R.layout.activity_main2) looks like id of your view are from another layout

how may i resolve ListView Problem ? ERROR: on a null object reference

hello guys i'm back again on a question conserning my final project.
i have made a googlemap app with navigation drawer using activity( no fragment). i think you know about that. then rather than using header and menu, i have use a layout where the header should be so that i can make there a listview to display events all of this is clear.
screenshot
MapActivity :
public class MapActivity extends AppCompatActivity implements OnMapReadyCallback {
private static final String TAG = "MapActivity";
DrawerLayout drawerLayout;
LinearLayout drawer_up;
FloatingActionsMenu mainfloating;
FloatingActionButton profile, evennement, historique,reglage,aidesupport;
ImageButton zoomin,zoomout,showtail,zoom_auto,showgeofence,maplayer,drawermenugroit,drawermenugauche;
ProgressDialog progressDialog;
private Dialog mDialog;
private GoogleMap map;
private Timer timer;
private int autoZoomedTimes = 0;// dėl bugo osmdroid library, zoom'inam du kartus ir paskui po refresh'o nebe, nes greičiausiai user'is bus pakeitęs zoom'ą
RelativeLayout nodata_layout;
private HashMap<Integer, Marker> deviceIdMarkers;
private HashMap<String, Device> markerIdDevices;
private HashMap<Integer, Polyline> deviceIdPolyline;
private HashMap<Integer, LatLng> deviceIdLastLatLng;
// private HashMap<Integer, Marker> deviceIdSmallMarkerInfo;
private long lastRefreshTime;
boolean isAutoZoomEnabled = true;
boolean isShowTitlesEnabled;
boolean isShowTailsEnabled = true;
boolean isShowGeofencesEnabled = true;
private String stopTime;
ImageButton map_layer_icon;
private AsyncTask downloadingAsync;
#Bind(R.id.listevent)
ListView listevent;
#Bind(R.id.clearAllEvents)
Button clearAllEvents;
#Bind(R.id.list) ListView list;
#Bind(R.id.nodata_layout) RelativeLayout nodata_layout1;
private boolean isRefreshLoced = false;
ApiInterface.GetGeofencesResult geofencesResult;
ArrayList<PolygonWithName> polygonsWithDetails = new ArrayList<>();
float previousZoomLevel = 0;
Boolean isAllFabsVisible;
RelativeLayout content_layout;
//fin de declaration a garder en tete
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
ButterKnife.bind(this);
setContentView(R.layout.activity_map);
//devices elements
deviceIdMarkers = new HashMap<>();
markerIdDevices = new HashMap<>();
deviceIdPolyline = new HashMap<>();
deviceIdLastLatLng = new HashMap<>();
final String api_key = (String) DataSaver.getInstance(MapActivity.this).load("api_key");
final EventsAdapter adapter = new EventsAdapter(this);
listevent.setAdapter(adapter);
//deviceIdSmallMarkerInfo = new HashMap<>();
//delaration des boutons pour le compte de floatingButton, etc...;
drawermenugroit = findViewById(R.id.drawermenudroit);
drawer_up = findViewById(R.id.drawerup);
drawermenugauche = findViewById(R.id.drawermenugauche);
drawerLayout = findViewById(R.id.drawer);
// profile = findViewById(R.id.profile);
mainfloating = findViewById(R.id.mainFloatingBtn);
evennement = findViewById(R.id.evennements);
historique = findViewById(R.id.historiques);
reglage = findViewById(R.id.reglages);
aidesupport = findViewById(R.id.aide_support);
zoomin = findViewById(R.id.zoom_in);
LinearLayout list_event = findViewById(R.id.list_event);
zoomout = findViewById(R.id.zoom_out);
showtail = findViewById(R.id.showtails);
zoom_auto = findViewById(R.id.autozoom);
listevent = (ListView) findViewById(R.id.listevent);
list = (ListView) findViewById(R.id.list);
showgeofence = findViewById(R.id.geofences);
maplayer = findViewById(R.id.map_layer);
map_layer_icon = (ImageButton) findViewById(R.id.map_layer);
//loading_bar = (ProgressBar) findViewById(R.id.loading_progBar);
content_layout = (RelativeLayout) findViewById(R.id.content_layout);
nodata_layout = (RelativeLayout) findViewById(R.id.nodata_layout);
//fin de declaration de boutons
//chargement des données
progressDialog = new ProgressDialog(this);
progressDialog = new ProgressDialog(MapActivity.this);
progressDialog.setMessage("En cours..."); // Setting Message
progressDialog.setTitle("Chargement de la carte"); // Setting Title
progressDialog.setProgressStyle(ProgressDialog.STYLE_SPINNER); // Progress Dialog Style Spinner
progressDialog.show(); // Display Progress Dialog
progressDialog.setCancelable(false);
new Thread(new Runnable() {
public void run() {
try {
Thread.sleep(10000);
} catch (Exception e) {
e.printStackTrace();
}
progressDialog.dismiss();
}
}).start();
// fni de chargement des données
//open drawer and load list data in drawer layout button
drawermenugauche.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
openDrawer(drawerLayout);
API.getApiInterface(MapActivity.this).getEvents(api_key, getResources().getString(R.string.lang), 0, new Callback<ApiInterface.GetEventsResult>() {
#Override
public void success(ApiInterface.GetEventsResult result, Response response) {
adapter.setArray(result.items.data);
if(result.items.data.size() != 0)
listevent.setVisibility(View.VISIBLE);
else
nodata_layout1.setVisibility(View.VISIBLE);
listevent.setVisibility(View.GONE);
}
#Override
public void failure(RetrofitError retrofitError) {
Toast.makeText(MapActivity.this, R.string.errorHappened, Toast.LENGTH_SHORT).show();
}
});
}
});
drawer_up.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
closeDrawer(drawerLayout);
}
});
zoomin.setOnClickListener(new View.OnClickListener()
{
#Override
public void onClick(View v)
{
map.animateCamera(CameraUpdateFactory.zoomIn());
}
});
zoomout.setOnClickListener(new View.OnClickListener()
{
#Override
public void onClick(View v)
{
map.animateCamera(CameraUpdateFactory.zoomOut());
}
});
zoom_auto.setOnClickListener(new View.OnClickListener()
{
#Override
public void onClick(View v)
{
isAutoZoomEnabled = !isAutoZoomEnabled;
if (isAutoZoomEnabled)
{
zoom_auto.setImageResource(R.drawable.icon2022);
Toast.makeText(MapActivity.this, "Zoom Auto Activé", Toast.LENGTH_SHORT).show();
} else
{
zoom_auto.setImageResource(R.drawable.disableicon2022);
Toast.makeText(MapActivity.this, "Zoom Auto Désactivé", Toast.LENGTH_SHORT).show();
}
}
});
SupportMapFragment mapFragment = (SupportMapFragment) getSupportFragmentManager()
.findFragmentById(R.id.map);
mapFragment.getMapAsync(this);
}
// ouverture et fermeture de drawer
private static void openDrawer(DrawerLayout drawerLayout){
drawerLayout.openDrawer(GravityCompat.START);
}
private static void closeDrawer(DrawerLayout drawerLayout){
if(drawerLayout.isDrawerOpen(GravityCompat.START)){
drawerLayout.closeDrawer(GravityCompat.START);
}
}
//fin ouverture et fermeture drawer
......etc...
see my EventsAdapter code below:
public class EventsAdapter extends AwesomeAdapter<Event> {
public EventsAdapter(Context context) {
super(context);
}
ArrayList<Event> original;
#Override
public void setArray(ArrayList<Event> array) {
super.setArray(array);
if(original == null)
original = array;
}
#Override
public View getView(int position, View convertView, ViewGroup parent) {
if(convertView == null)
convertView = getLayoutInflater().inflate(R.layout.adapter_events, null);
Event item = getItem(position);
TextView device_name = (TextView) convertView.findViewById(R.id.device_name);
device_name.setText(item.device_name);
TextView date = (TextView) convertView.findViewById(R.id.date);
date.setText(item.time);
TextView message = (TextView) convertView.findViewById(R.id.message);
message.setText(item.message);
TextView geofence_name = (TextView) convertView.findViewById(R.id.geofence_name);
geofence_name.setText(item.geofence_name);
return convertView;
}
ItemFilter mFilter = new ItemFilter();
public Filter getFilter() {
return mFilter;
}
private class ItemFilter extends Filter {
#Override
protected FilterResults performFiltering(CharSequence constraint)
{
String filterString = constraint.toString().toLowerCase();
FilterResults results = new FilterResults();
final ArrayList<Event> nlist = new ArrayList<>();
for(Event item : original)
{
if(item.fitForFilter(filterString))
nlist.add(item);
}
results.values = nlist;
results.count = nlist.size();
return results;
}
#SuppressWarnings("unchecked")
#Override
protected void publishResults(CharSequence constraint, FilterResults results) {
setArray((ArrayList<Event>) results.values);
notifyDataSetChanged();
}
}
}
then in my adapter_event layout
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:orientation="vertical"
android:background="#color/whitesplash"
android:layout_marginBottom="10dp"
android:layout_height="wrap_content">
<ImageView
android:id="#+id/instance"
android:layout_width="16dp"
android:layout_height="22dp"
android:src="#drawable/custom_floating_button" />
<TextView
android:id="#+id/device_nam"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_toEndOf="#+id/instance"
android:fontFamily="#font/fjallaoneregular"
android:text="Info Balise"
android:textColor="#color/black"
android:textSize="8dp"
android:textStyle="normal" />
<View
android:layout_width="match_parent"
android:layout_height="1dp"
android:layout_below="#+id/device_nam"
android:outlineAmbientShadowColor="#color/blue" />
<TextView
android:id="#+id/device_name"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="#+id/device_nam"
android:layout_marginStart="16dp"
android:fontFamily="#font/fjallaoneregular"
android:text="device name"
android:textColor="#color/blue"
android:textSize="8dp"
android:textStyle="italic" />
<TextView
android:id="#+id/textspeed"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginStart="3dp"
android:layout_toEndOf="#+id/device_nam"
android:fontFamily="#font/fjallaoneregular"
android:text="Vitesse"
android:textColor="#color/black"
android:textSize="8dp"
android:textStyle="italic" />
<TextView
android:id="#+id/speed"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="#+id/textspeed"
android:layout_marginStart="3dp"
android:layout_toEndOf="#+id/device_name"
android:fontFamily="#font/fjallaoneregular"
android:text="speed"
android:textColor="#color/blue"
android:textSize="8dp"
android:textStyle="italic" />
<TextView
android:id="#+id/message1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginLeft="3dp"
android:layout_toRightOf="#+id/textspeed"
android:fontFamily="#font/fjallaoneregular"
android:text="message"
android:textColor="#color/black"
android:textSize="8dp"
android:textStyle="normal" />
<TextView
android:id="#+id/message"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="#+id/textspeed"
android:layout_marginStart="3dp"
android:layout_toEndOf="#+id/speed"
android:fontFamily="#font/fjallaoneregular"
android:text="massage"
android:textColor="#color/blue"
android:textSize="8sp"
android:textStyle="italic" />
<View
android:id="#+id/view2"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_below="#+id/device_name" />
<TextView
android:id="#+id/datetext"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="#+id/device_name"
android:layout_toEndOf="#+id/instance"
android:fontFamily="#font/fjallaoneregular"
android:text="date:"
android:textColor="#color/black"
android:textSize="8dp"
android:textStyle="normal" />
<TextView
android:id="#+id/date"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="#+id/device_name"
android:layout_marginStart="3dp"
android:layout_toEndOf="#+id/datetext"
android:fontFamily="#font/fjallaoneregular"
android:text="date"
android:textColor="#color/blue"
android:textSize="8sp"
android:textStyle="italic" />
<TextView
android:id="#+id/geofence_name"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="geofence_name"
android:fontFamily="#font/lobsterregular"
android:layout_below="#+id/date"
android:layout_marginStart="3dp"
android:layout_toRightOf="#+id/instance"
android:textSize="8dp"
android:textColor="#color/blue"/>
</RelativeLayout>
in this adpater_events i have found no mistake. and in the drawer_tracesas i said before( i am not using menu and header in navigationDrawer i would like to use a layout that i called drawer_traces) like below
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="match_parent">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:id="#+id/drawerup"
android:orientation="horizontal"
android:background="#color/blue">
<ImageView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:contentDescription="#string/objects"
android:src="#drawable/ic_menu_24"/>
<TextView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:gravity="center"
android:textSize="16sp"
android:text="#string/objects" />
</LinearLayout>
<TextView
android:id="#+id/Liste_Balises"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_below="#+id/drawerup"
android:fontFamily="#font/fjallaoneregular"
android:gravity="center"
android:text="#string/liste_balises"
android:textColor="#color/blue" />
<LinearLayout
android:id="#+id/list_balises"
android:layout_width="match_parent"
android:layout_height="300dp"
android:orientation="vertical"
android:layout_below="#+id/Liste_Balises"
android:layout_marginTop="10dp"
android:minHeight="?android:attr/listPreferredItemHeight">
<ListView
android:id="#+id/list"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginLeft="10dp"
android:layout_marginRight="10dp"
android:orientation="vertical" />
</LinearLayout>
<TextView
android:id="#+id/list_events"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_below="#+id/list_balises"
android:layout_marginTop="10dp"
android:fontFamily="#font/fjallaoneregular"
android:gravity="center"
android:text="#string/liste_evennemT"
android:textColor="#color/blue" />
<LinearLayout
android:id="#+id/list_event"
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="300dp"
android:layout_below="#+id/list_events"
android:layout_marginTop="10dp"
android:minHeight="?android:attr/listPreferredItemHeight">
<ListView
android:id="#+id/listevent"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginLeft="10dp"
android:layout_marginTop="10dp"
android:layout_marginRight="10dp"
android:orientation="vertical" />
</LinearLayout>
<RelativeLayout
android:id="#+id/nodata_layout1"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_below="#+id/list_event"
android:layout_above="#+id/clearAllEvents"
android:background="#ffffff"
android:visibility="gone"
android:gravity="center">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:gravity="center"
android:text="#string/noEventsData"/>
</RelativeLayout>
<Button
android:id="#+id/clearAllEvents"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_below="#+id/list_event"
android:fontFamily="#font/fjallaoneregular"
android:text="Effacer Evennements"/>
</RelativeLayout>
this layout (drawer_trace) will be displayed in mapActivity as a navigation Drawer. we are ok for that.
and then i have my Events Model:
public class Event
{
public int id, user_id, device_id, position_id, alert_id;
// geofence_id
public String message;
public String address;
public float altitude;
// course
public float latitude, longitude;
// power
public float speed;
public String time;
// deleted
public String device_name, geofence_name;
public boolean fitForFilter(String filterString) {
if(message.toLowerCase().contains(filterString.toLowerCase()))
return true;
if(address.toLowerCase().contains(filterString.toLowerCase()))
return true;
if(time.toLowerCase().contains(filterString.toLowerCase()))
return true;
if(device_name.toLowerCase().contains(filterString.toLowerCase()))
return true;
if(geofence_name.toLowerCase().contains(filterString.toLowerCase()))
return true;
return false;
}
i am using REST API in backend and retrofit.
everything is ok untill i try to eun the app.
it says ERROR MESSAGE:
Process: com.gabontech.gprstest, PID: 14460
java.lang.RuntimeException: Unable to start activity ComponentInfo{com.gabontech.gprstest/com.gabontech.gprstest.activities.MapActivity}: java.lang.NullPointerException: Attempt to invoke virtual method 'void android.widget.ListView.setAdapter(android.widget.ListAdapter)' on a null object reference
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:3433)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:3572)
at android.app.servertransaction.LaunchActivityItem.execute(LaunchActivityItem.java:83)
at android.app.servertransaction.TransactionExecutor.executeCallbacks(TransactionExecutor.java:140)
at android.app.servertransaction.TransactionExecutor.execute(TransactionExecutor.java:96)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2097)
at android.os.Handler.dispatchMessage(Handler.java:107)
at android.os.Looper.loop(Looper.java:264)
at android.app.ActivityThread.main(ActivityThread.java:7663)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:492)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:980)
Caused by: java.lang.NullPointerException: Attempt to invoke virtual method 'void android.widget.ListView.setAdapter(android.widget.ListAdapter)' on a null object reference
at com.gabontech.gprstest.activities.MapActivity.onCreate(MapActivity.java:139)
at android.app.Activity.performCreate(Activity.java:7805)
at android.app.Activity.performCreate(Activity.java:7794)
i think about the adapter where in EventsAdapter.class line ref:::::
convertView = getLayoutInflater().inflate(R.layout.adapter_events, null);
ihave spent two days there. please if you can help it will give me a hand for my exam. Thank so much guys

how can disable scroll recyclerView when moving map?

I created a recyclerView that has several items but the problem is when I want to look for the address inside the map
When I scroll through the map, the recycler view shifts and the map loses scrollability.
enter link description here
//Recycler View Adapter Class
public class AddressAdapter extends RecyclerView.Adapter<AddressAdapter.Holder> {
private List<FakeAddressList> objectList;
public AddressAdapter(List<FakeAddressList> list) {
this.objectList = list;
}
#NonNull
#Override
public Holder onCreateViewHolder(#NonNull ViewGroup parent, int viewType) {
View view = LayoutInflater.from(parent.getContext()).inflate(R.layout.recycler_address, parent, false);
return new Holder(view);
}
#Override
public void onBindViewHolder(#NonNull Holder holder, int position) {
holder.bindAddressList(objectList.get(position));
holder.imgClose.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
objectList.remove(position);
notifyDataSetChanged();
}
});
holder.imgEditLocation.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
AddAddressFragment addressFragment = new AddAddressFragment();
FragmentTransaction ft = fm.beginTransaction();
Bundle bundle = new Bundle();
bundle.putString("Title", objectList.get(position).getTitle());
bundle.putString("Address", objectList.get(position).getAddress());
bundle.putString("Phone", objectList.get(position).getPhoneNumber());
addressFragment.setArguments(bundle);
ft.replace(R.id.content_view, addressFragment).addToBackStack(null).commit();
}
});
holder.FooterLayout.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
AddDataFragment addDataFragment = new AddDataFragment();
FragmentTransaction ft = fm.beginTransaction();
Bundle bundle = new Bundle();
bundle.putString("Title", objectList.get(position).getAddress());
bundle.putString("Address", objectList.get(position).getAddress());
bundle.putString("Phone", objectList.get(position).getPhoneNumber());
addDataFragment.setArguments(bundle);
ft.replace(R.id.content_view, addDataFragment).addToBackStack(null).commit();
}
});
}
#Override
public int getItemCount() {
return objectList.size();
}
public class Holder extends RecyclerView.ViewHolder {
public TextView txtTitle;
public TextView txtSelect;
public TextView txtAddress;
public TextView txtPhone;
public ImageView imgClose;
public ImageView imgEditLocation;
public ConstraintLayout FooterLayout;
public MapView map;
public Holder(#NonNull View itemView) {
super(itemView);
txtTitle = itemView.findViewById(R.id.txtTitle);
txtAddress = itemView.findViewById(R.id.txtAddress);
txtPhone = itemView.findViewById(R.id.txtPhoneNumber);
txtSelect = itemView.findViewById(R.id.txtSelect);
imgClose = itemView.findViewById(R.id.imgClose);
imgEditLocation = itemView.findViewById(R.id.imgEditLocation);
FooterLayout = itemView.findViewById(R.id.FooterLayout);
map = itemView.findViewById(R.id.mapView);
txtTitle.setTypeface(Font_shabnam);
txtAddress.setTypeface(Font_shabnam);
txtPhone.setTypeface(Font_shabnam);
txtSelect.setTypeface(Font_shabnam);
}
public void bindAddressList(final FakeAddressList fakeAddressList) {
txtTitle.setText(fakeAddressList.getTitle());
txtAddress.setText(fakeAddressList.getAddress());
txtPhone.setText(fakeAddressList.getPhoneNumber());
if (fakeAddressList.getLng() != null) {
double lng = Double.valueOf(fakeAddressList.getLng());
double lat = Double.valueOf(fakeAddressList.getLat());
addUserMarker(new LngLat(lng, lat));
map.setFocalPointPosition(
new LngLat(Double.valueOf(fakeAddressList.getLng()), Double.valueOf(fakeAddressList.getLat())), 0.25f);
} else {
LngLat focalPoint;
focalPoint = new LngLat(51.33800, 35.69997);
map.setFocalPointPosition(focalPoint, 0f);
}
map.setZoom(15, 0.25f);
map.getLayers().add(NeshanServices.createBaseMap(NeshanMapStyle.STANDARD_DAY));
}
// This method gets a LngLat as input and adds a marker on that position
private void addUserMarker(LngLat loc) {
Marker marker;
VectorElementLayer userMarkerLayer;
userMarkerLayer = NeshanServices.createVectorElementLayer();
map.getLayers().add(userMarkerLayer);
// Creating marker style. We should use an object of type MarkerStyleCreator, set all features on it
// and then call buildStyle method on it. This method returns an object of type MarkerStyle
MarkerStyleCreator markStCr = new MarkerStyleCreator();
markStCr.setSize(20f);
// markStCr.setBitmap(BitmapUtils.createBitmapFromAndroidBitmap(BitmapFactory.decodeResource(getResources(), R.drawable.ic_marker)));
markStCr.setBitmap(BitmapUtils.createBitmapFromAndroidBitmap(BitmapFactory.decodeResource(itemView.getResources(), R.drawable.ic_cherry)));
MarkerStyle markSt = markStCr.buildStyle();
// Creating user marker
marker = new Marker(loc, markSt);
// Clearing userMarkerLayer
// userMarkerLayer.clear();
// Adding user marker to userMarkerLayer, or showing marker on map!
userMarkerLayer.add(marker);
}
}
}
Recycler View Xml Layout
<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginStart="16dp"
android:layout_marginEnd="16dp"
android:layout_marginBottom="16dp">
<androidx.constraintlayout.widget.ConstraintLayout
android:id="#+id/HeaderLayout"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginStart="8dp"
android:layout_marginLeft="8dp"
android:layout_marginTop="8dp"
android:layout_marginEnd="8dp"
android:layout_marginRight="8dp"
android:background="#drawable/_orange_shape_b_r_l"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent"
app:layout_constraintVertical_bias="0.0">
<ImageView
android:id="#+id/imgClose"
android:layout_width="40dp"
android:layout_height="40dp"
android:layout_marginStart="16dp"
android:layout_marginLeft="16dp"
android:layout_marginTop="16dp"
android:layout_marginBottom="16dp"
android:src="#drawable/ic_close"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent" />
<ImageView
android:id="#+id/imgEditLocation"
android:layout_width="40dp"
android:layout_height="40dp"
android:layout_marginTop="16dp"
android:layout_marginEnd="16dp"
android:layout_marginRight="16dp"
android:layout_marginBottom="16dp"
android:src="#drawable/ic_edit_location"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHorizontal_bias="1.0"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent" />
<TextView
android:id="#+id/txtTitle"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="تهرانپارس"
android:textSize="18dp"
android:textColor="#color/white"
app:layout_constraintBottom_toBottomOf="#+id/imgEditLocation"
app:layout_constraintEnd_toStartOf="#+id/imgEditLocation"
app:layout_constraintStart_toEndOf="#+id/imgClose"
app:layout_constraintTop_toTopOf="#+id/imgClose" />
</androidx.constraintlayout.widget.ConstraintLayout>
<androidx.constraintlayout.widget.ConstraintLayout
android:id="#+id/MiddleLayout"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="#color/white"
android:layout_marginStart="8dp"
android:layout_marginLeft="8dp"
android:layout_marginEnd="8dp"
android:layout_marginRight="8dp"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="#+id/HeaderLayout"
app:layout_constraintVertical_bias="0.0">
<org.neshan.ui.MapView
android:id="#+id/mapView"
android:layout_width="match_parent"
android:layout_height="300dp"
app:layout_constraintTop_toTopOf="parent" />
<ImageView
android:id="#+id/imgAddress"
android:layout_width="30dp"
android:layout_height="30dp"
android:layout_marginTop="8dp"
android:layout_marginEnd="16dp"
android:layout_marginRight="16dp"
android:layout_marginBottom="16dp"
android:src="#drawable/ic_address"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHorizontal_bias="1.0"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="#id/mapView"
app:layout_constraintVertical_bias="0.0" />
<TextView
android:id="#+id/txtAddress"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:gravity="center"
android:text="خیابان فلانی کوچه 1"
android:textSize="18dp"
app:layout_constraintBottom_toBottomOf="#+id/imgAddress"
app:layout_constraintTop_toTopOf="#+id/imgAddress" />
<ImageView
android:id="#+id/imgPhone"
android:layout_width="30dp"
android:layout_height="30dp"
android:layout_marginTop="16dp"
android:layout_marginEnd="16dp"
android:layout_marginRight="16dp"
android:layout_marginBottom="16dp"
android:src="#drawable/ic_phone"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHorizontal_bias="1.0"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="#id/imgAddress"
app:layout_constraintVertical_bias="0.0" />
<TextView
android:id="#+id/txtPhoneNumber"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:gravity="center"
android:text="0916123456"
android:textSize="18dp"
app:layout_constraintBottom_toBottomOf="#+id/imgPhone"
app:layout_constraintTop_toTopOf="#+id/imgPhone" />
</androidx.constraintlayout.widget.ConstraintLayout>
<androidx.constraintlayout.widget.ConstraintLayout
android:id="#+id/FooterLayout"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginStart="8dp"
android:layout_marginLeft="8dp"
android:layout_marginEnd="8dp"
android:layout_marginRight="8dp"
android:layout_marginBottom="8dp"
android:background="#drawable/_black_shape_t_r_l"
android:padding="16dp"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="#id/MiddleLayout"
app:layout_constraintVertical_bias="0.0">
<TextView
android:id="#+id/txtSelect"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="انتخاب"
android:textColor="#color/white"
android:textSize="18dp"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent" />
</androidx.constraintlayout.widget.ConstraintLayout>
</androidx.constraintlayout.widget.ConstraintLayout>
//Fragment that Load Recyclerview
public class RegisterAddressFragment extends Fragment
implements View.OnClickListener {
private RecyclerView recycler_SelectAddress;
private Button btnNewAddress;
private ProgressBar progressBar;
private ConstraintLayout MainLayout;
private Bundle bundle;
private ArrayList<FakeAddressList> list = new ArrayList<>();
#Override
public void onActivityCreated(#Nullable Bundle savedInstanceState) {
super.onActivityCreated(savedInstanceState);
this.bundle = getArguments();
if (bundle != null) {
list.add(new FakeAddressList(bundle.getString("Title"),
bundle.getString("Address"),
bundle.getString("Phone"),
bundle.getString("Lng"),
bundle.getString("Lat")));
}
}
public View onCreateView(#NonNull LayoutInflater inflater, #Nullable ViewGroup container, #Nullable Bundle savedInstanceState) {
View v = inflater.inflate(R.layout.fragment_register_address, container, false);
init(v);
initRecyclerView();
return v;
}
private void init(View v) {
recycler_SelectAddress = v.findViewById(R.id.recycler_SelectAddress);
btnNewAddress = v.findViewById(R.id.btnNewAddress);
btnNewAddress.setOnClickListener(this);
progressBar = v.findViewById(R.id.progressbar);
MainLayout = v.findViewById(R.id.MainLayout);
Thread thread = new Thread() {
#Override
public void run() {
try {
Thread.sleep(1000);
} catch (InterruptedException e) {
}
getActivity().runOnUiThread(new Runnable() {
#Override
public void run() {
// Do some stuff
progressBar.setVisibility(View.GONE);
MainLayout.setVisibility(View.VISIBLE);
}
});
}
};
thread.start(); //start the thread
}
private void initRecyclerView() {
list.add(new FakeAddressList("اصفهان", "شاهین شهر خیابان نوشین پلاک 1", "987654321"));
list.add(new FakeAddressList("اهواز", "کیانپارس کوچه بنی هاشم پلاک 33", "123456789"));
LinearLayoutManager layoutManager = new LinearLayoutManager(getContext());
layoutManager.setOrientation(RecyclerView.VERTICAL);
AddressAdapter addressAdapter = new AddressAdapter(list);
recycler_SelectAddress.setLayoutManager(layoutManager);
recycler_SelectAddress.setAdapter(addressAdapter);
}
#Override
public void onClick(View view) {
switch (view.getId()) {
case R.id.btnNewAddress:
AddAddressFragment addressFragment = new AddAddressFragment();
FragmentTransaction ft = fm.beginTransaction();
ft.replace(R.id.content_view, addressFragment).addToBackStack(null).commit();
break;
}
}
}
Fragment Xml File
<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
xmlns:tools="http://schemas.android.com/tools"
android:background="#color/tusi"
xmlns:app="http://schemas.android.com/apk/res-auto">
<ProgressBar
android:id="#+id/progressbar"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:indeterminateTint="#color/red2"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent" />
<androidx.constraintlayout.widget.ConstraintLayout
android:id="#+id/MainLayout"
tools:visibility="visible"
android:visibility="gone"
android:layout_width="match_parent"
android:layout_height="match_parent">
<androidx.recyclerview.widget.RecyclerView
android:id="#+id/recycler_SelectAddress"
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_marginBottom="32dp"
app:layout_constraintBottom_toTopOf="#+id/btnNewAddress"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent" />
<Button
android:id="#+id/btnNewAddress"
android:layout_width="match_parent"
android:layout_height="0dp"
android:backgroundTint="#color/navy_blue"
android:insetLeft="0dp"
android:insetTop="0dp"
android:insetRight="0dp"
android:insetBottom="0dp"
android:text="آدرس جدید"
android:textSize="22sp"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent" />
</androidx.constraintlayout.widget.ConstraintLayout>
</androidx.constraintlayout.widget.ConstraintLayout>

I found the solution :
I added below code in the adapter of the recyclerview
map.setOnTouchListener(new View.OnTouchListener() {
#Override
public boolean onTouch(View view, MotionEvent motionEvent) {
itemView.getParent().requestDisallowInterceptTouchEvent(true);
return false;
}
});

Why is my ListView showing in one fragment and not the other?

To summarize, I'm building a social media app that displays:
A Newsfeed that shows posts from all user profiles in a given account
A Timeline that shows posts from a specific user profile in the account
I've built a custom BaseAdapter to populate a custom cell within each ListView. The Newsfeed ListView (that populates posts from all users on the account) is populating correctly.
The Timeline ListView (that populates posts from one profile on the account) is not showing. I've set breakpoints to ensure that my ArrayList is not null or empty when populating the Timeline ListView. In addition, breakpoints verify that my custom adapter is, in fact, pulling data from the ArrayList and inflating cells. However, the ListView is simply not visible.
Here is the layout file for my Newsfeed fragment (that is working correctly):
<android.support.constraint.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#color/colorSkyPrimary">
<android.support.constraint.ConstraintLayout
android:id="#+id/constraintLayout"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:background="#android:color/white"
android:elevation="16dp"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHorizontal_bias="0.0"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent">
<EditText
android:id="#+id/input_post"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_marginStart="32dp"
android:layout_marginEnd="32dp"
android:backgroundTint="#color/colorSkyPrimary"
android:ems="10"
android:gravity="start|top"
android:hint="#string/what_s_going_on"
android:importantForAutofill="no"
android:inputType="textMultiLine"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent"
tools:targetApi="o" />
<ImageButton
android:id="#+id/button_photo"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginBottom="8dp"
android:backgroundTint="#android:color/white"
android:contentDescription="#string/camera_button"
app:layout_constraintBottom_toBottomOf="#+id/input_post"
app:layout_constraintEnd_toEndOf="#+id/input_post"
app:srcCompat="#drawable/camera_icon" />
<Button
android:id="#+id/button_cancel"
style="#style/Widget.AppCompat.Button.Borderless"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginStart="48dp"
android:layout_marginTop="8dp"
android:text="#android:string/cancel"
android:textColor="#color/colorGrassPrimary"
android:visibility="gone"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="#+id/post_image" />
<Button
android:id="#+id/button_update"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="8dp"
android:layout_marginEnd="48dp"
android:backgroundTint="#color/colorGrassPrimary"
android:text="#string/update"
android:textColor="#color/colorButtonText"
android:visibility="gone"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintTop_toBottomOf="#+id/post_image" />
<ImageView
android:id="#+id/post_image"
android:layout_width="0dp"
android:layout_height="300dp"
android:contentDescription="#string/post_image"
android:scaleType="fitCenter"
android:visibility="gone"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="#+id/input_post"
tools:srcCompat="#tools:sample/avatars" />
</android.support.constraint.ConstraintLayout>
<ListView
android:id="#+id/list_newsfeed"
android:layout_width="0dp"
android:layout_height="0dp"
app:layout_constraintBottom_toTopOf="#+id/picker_image"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHorizontal_bias="0.0"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="#+id/constraintLayout"
app:layout_constraintVertical_bias="0.0" />
<android.support.constraint.ConstraintLayout
android:id="#+id/picker_image"
android:layout_width="0dp"
android:layout_height="75dp"
android:background="#android:color/white"
android:elevation="16dp"
android:visibility="gone"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent">
<android.support.constraint.Guideline
android:id="#+id/guideline14"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="vertical"
app:layout_constraintGuide_percent="0.5" />
<ImageButton
android:id="#+id/button_camera"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="8dp"
android:layout_marginEnd="32dp"
android:layout_marginBottom="8dp"
android:background="#android:color/transparent"
android:contentDescription="#string/camera_button"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toStartOf="#+id/guideline14"
app:layout_constraintTop_toTopOf="parent"
app:srcCompat="#drawable/camera_icon_large" />
<ImageButton
android:id="#+id/button_gallery"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginStart="32dp"
android:layout_marginTop="8dp"
android:layout_marginBottom="8dp"
android:background="#android:color/transparent"
android:contentDescription="#string/gallery_button"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintStart_toStartOf="#+id/guideline14"
app:layout_constraintTop_toTopOf="parent"
app:layout_constraintVertical_bias="0.375"
app:srcCompat="#drawable/gallery_icon" />
</android.support.constraint.ConstraintLayout>
Here is the layout file for my Profile fragment (in which the ListView is not showing at runtime)
<android.support.constraint.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#color/colorSkyPrimary">
<android.support.constraint.ConstraintLayout
android:id="#+id/constraintLayout4"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:background="#android:color/white"
android:elevation="8dp"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent">
<de.hdodenhof.circleimageview.CircleImageView
android:id="#+id/profile_photo"
android:layout_width="100dp"
android:layout_height="100dp"
android:layout_marginStart="32dp"
android:layout_marginTop="32dp"
android:src="#drawable/male_icon_large"
app:civ_border_color="#android:color/transparent"
app:civ_border_width="2dp"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent" />
<TextView
android:id="#+id/display_name"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_marginStart="8dp"
android:layout_marginTop="16dp"
android:layout_marginEnd="8dp"
android:text="#string/brelynn_mack"
android:textAlignment="viewStart"
android:textColor="#color/colorTextDark"
android:textSize="18sp"
app:layout_constraintEnd_toStartOf="#+id/button_delete_profile"
app:layout_constraintStart_toEndOf="#+id/profile_photo"
app:layout_constraintTop_toTopOf="#+id/profile_photo" />
<TextView
android:id="#+id/display_timestamp"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_marginStart="8dp"
android:layout_marginEnd="8dp"
android:text="#string/may_14_2019_9_59_pm"
android:textAlignment="viewStart"
android:textColor="#color/colorTextLight"
android:textSize="14sp"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toEndOf="#+id/profile_photo"
app:layout_constraintTop_toBottomOf="#+id/display_name" />
<TextView
android:id="#+id/display_last_location"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_marginStart="8dp"
android:layout_marginTop="8dp"
android:layout_marginEnd="8dp"
android:text="#string/_8741_grouse_run_lane_28314"
android:textAlignment="viewStart"
android:textColor="#color/colorTextPrimary"
android:textSize="12sp"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toEndOf="#+id/profile_photo"
app:layout_constraintTop_toBottomOf="#+id/display_timestamp" />
<ImageButton
android:id="#+id/button_delete_profile"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="16dp"
android:layout_marginEnd="16dp"
android:background="#android:color/white"
android:contentDescription="#string/trash_button"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintTop_toTopOf="parent"
app:srcCompat="#drawable/trash_icon" />
<ImageButton
android:id="#+id/button_photo"
android:layout_width="35dp"
android:layout_height="35dp"
android:layout_marginStart="8dp"
android:layout_marginBottom="16dp"
android:background="#android:color/white"
android:contentDescription="#string/camera_button"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintStart_toStartOf="#+id/profile_photo"
app:layout_constraintTop_toBottomOf="#+id/profile_photo"
app:srcCompat="#drawable/camera_icon" />
<ImageButton
android:id="#+id/button_family"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginEnd="16dp"
android:layout_marginBottom="8dp"
android:background="#android:color/white"
android:contentDescription="#string/family_button"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:srcCompat="#drawable/family_icon_small" />
<ImageButton
android:id="#+id/button_gallery"
android:layout_width="35dp"
android:layout_height="35dp"
android:layout_marginEnd="8dp"
android:background="#android:color/transparent"
android:contentDescription="#string/gallery_button"
android:scaleType="fitCenter"
app:layout_constraintEnd_toEndOf="#+id/profile_photo"
app:layout_constraintTop_toBottomOf="#+id/profile_photo"
app:srcCompat="#drawable/gallery_icon" />
</android.support.constraint.ConstraintLayout>
<ListView
android:id="#+id/list_posts"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="#+id/constraintLayout4" />
Here is my custom adapter:
public class NewsfeedAdapter extends BaseAdapter {
// Class properties
private static final String TAG = "NewsfeedAdapter";
public static final String EXTRA_POSTS = "extra_posts";
public static final String EXTRA_POSITION = "extra_position";
private final Context context;
ArrayList<Post> posts;
Account account;
// Constructor
public NewsfeedAdapter(Context context, ArrayList<Post> posts, Account account) {
this.context = context;
this.posts = posts;
this.account = account;
}
// System generated methods
#Override
public int getCount() {
return posts.size();
}
#Override
public long getItemId(int position) {
return position;
}
#Override
public Object getItem(int position) {
return posts.get(position);
}
#Override
public View getView(final int position, View convertView, ViewGroup parent) {
final Post post = posts.get(position);
if(convertView == null) {
LayoutInflater layoutInflater = LayoutInflater.from(context);
convertView = layoutInflater.inflate(R.layout.cell_newsfeed, null);
}
TextView profileNameDisplay = convertView.findViewById(R.id.display_profile_name);
String name = post.getPosterName() + " " + account.getFamilyName();
profileNameDisplay.setText(name);
TextView timestampDisplay = convertView.findViewById(R.id.display_timestamp);
SimpleDateFormat dateFormat = new SimpleDateFormat("MMMM dd, yyyy # hh:mm a", Locale.getDefault());
String timestamp = dateFormat.format(post.getTimeStamp());
timestampDisplay.setText(timestamp);
TextView postMessageDisplay = convertView.findViewById(R.id.display_post_message);
postMessageDisplay.setText(post.getPostMessage());
if (post.getHasImage()) {
AccountUtils.loadProfilePhoto(context, convertView, post.getPosterId());
}
else {
ImageView postImage = convertView.findViewById(R.id.display_post_image);
postImage.setVisibility(View.GONE);
}
PostUtils.loadPostImage(convertView, post.getPostId());
ImageButton deleteButton = convertView.findViewById(R.id.button_delete_post);
ImageButton editButton = convertView.findViewById(R.id.button_edit_post);
toggleButtons(post, editButton, deleteButton);
deleteButton.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
AlertDialog.Builder alertBuilder = new AlertDialog.Builder(context);
alertBuilder.setTitle(context.getString(R.string.delete_post));
alertBuilder.setMessage(context.getString(R.string.delete_post_message));
alertBuilder.setPositiveButton(context.getString(R.string.delete), new DialogInterface.OnClickListener() {
#Override
public void onClick(DialogInterface dialog, int which) {
posts.remove(position);
PostUtils.deletePost(context, post.getPostId(), post.getPosterId());
notifyDataSetChanged();
PostUtils.listenForNews(context);
}
});
alertBuilder.setNegativeButton(context.getString(R.string.cancel), null);
AlertDialog alert = alertBuilder.create();
alert.show();
}
});
editButton.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
Intent editIntent = new Intent(context, EditPostActivity.class);
editIntent.putExtra(EXTRA_POSTS, posts);
editIntent.putExtra(EXTRA_POSITION, position);
context.startActivity(editIntent);
}
});
return convertView;
}
// Custom methods
private void toggleButtons(Post post, ImageButton editButton, ImageButton deleteButton) {
long twoMinutes = System.currentTimeMillis() - (2 * 60 * 1000);
long fiveMinutes = System.currentTimeMillis() - (5 * 60 * 1000);
if (post.getTimeStamp().getTime() < fiveMinutes) {
editButton.setVisibility(View.GONE);
}
else {
editButton.setVisibility(View.VISIBLE);
}
if (post.getTimeStamp().getTime() < twoMinutes) {
deleteButton.setVisibility(View.GONE);
}
else {
deleteButton.setVisibility(View.VISIBLE);
}
}
Here are the lifecycle methods from the Newsfeed fragment that load my data and set the adapter:
#Nullable
#Override
public View onCreateView(#NonNull LayoutInflater inflater, #Nullable ViewGroup container, #Nullable Bundle savedInstanceState) {
View view = inflater.inflate(R.layout.fragment_newsfeed, container, false);
PostUtils.listenForNews(getActivity());
mPosts = PostUtils.loadNewsfeed(getActivity());
mNewsfeed = view.findViewById(R.id.list_newsfeed);
mImagePicker = view.findViewById(R.id.picker_image);
mPhotoView = view.findViewById(R.id.post_image);
AccountUtils.listenForUpdates(getActivity());
setClickListener(view);
setFocusListener(view);
return view;
}
#Override
public void onResume() {
super.onResume();
mPosts = PostUtils.loadNewsfeed(getActivity());
Account account = AccountUtils.loadAccount(getActivity());
mNewsfeedAdapter = new NewsfeedAdapter(getActivity(), mPosts, account);
mNewsfeed.setAdapter(mNewsfeedAdapter);
}
Here are the lifecycle methods from my Profile fragment where the same functionality should work for a slightly different set of data:
#Nullable
#Override
public View onCreateView(#NonNull LayoutInflater inflater, #Nullable ViewGroup container, #Nullable Bundle savedInstanceState) {
View view = inflater.inflate(R.layout.fragment_profile, container, false);
try {
if(getActivity().getIntent() != null && getActivity().getIntent().getAction().equals(FamilyProfileFragment.ACTION_EDIT_PROFILE)) {
mEditingSelf = false;
mIsParent = true;
mProfile = (Profile) getActivity().getIntent().getSerializableExtra(FamilyProfileFragment.EXTRA_PROFILE);
String selectedName = mProfile.getFirstName();
String loadedName = AccountUtils.loadProfile(getActivity()).getFirstName();
if(selectedName.equals(loadedName)) {
mEditingSelf = true;
}
}
else {
mEditingSelf = true;
mProfile = AccountUtils.loadProfile(getActivity());
if(mProfile instanceof Parent) {
mIsParent = true;
}
else {
mIsParent = false;
}
}
}
catch (Exception e) {
e.printStackTrace();
mEditingSelf = true;
mProfile = AccountUtils.loadProfile(getActivity());
if(mProfile instanceof Parent) {
mIsParent = true;
}
else {
mIsParent = false;
}
}
mAccount = AccountUtils.loadAccount(getActivity());
AccountUtils.loadProfilePhoto(getActivity(), view, mProfile.getProfileId());
mPhotoView = view.findViewById(R.id.profile_photo);
PostUtils.listenForTimeline(getActivity(), mProfile);
mPosts = PostUtils.loadTimeline(getActivity());
mTimeline = view.findViewById(R.id.list_posts);
setClickListener(view);
setTextDisplay(view);
populateProfile(view);
return view;
}
#Override
public void onResume() {
super.onResume();
mPosts = PostUtils.loadTimeline(getActivity());
mNewsfeedAdapter = new NewsfeedAdapter(getActivity(), mPosts, mAccount);
mTimeline.setAdapter(mNewsfeedAdapter);
}

My constraints were set up incorrectly in the Profile fragment. Updated the XML to the following:
<ListView
android:id="#+id/list_newsfeed"
android:layout_width="0dp"
android:layout_height="0dp"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="#+id/constraintLayout4" />

Recycler's custom adapter methods are not called

i am using other layout elements and recyclerview in a layout and inflating cardview layout in oncreateViewHolder (custom adapter). Methods are only called when i just user recyclerview in a layout not with other layout elements.
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent">
<android.support.v4.widget.SwipeRefreshLayout
android:id="#+id/swipe_layout_for_item_detail"
android:layout_width="wrap_content"
android:layout_height="wrap_content">
<android.support.v7.widget.CardView
android:id="#+id/detail_card_view"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_margin="5dp">
<RelativeLayout
android:layout_width="fill_parent"
android:layout_height="wrap_content">
<TextView
android:id="#+id/detail_category_description"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="left"
android:textStyle="bold"
android:layout_below="#+id/detail_category_price" />
<TextView
android:id="#+id/detail_category_price"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentEnd="true"
android:layout_alignParentRight="true"
android:layout_gravity="center"
android:layout_margin="10dp"
android:text="Rs: 1000" />
<Button
android:id="#+id/btn_bid"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Bid"
android:textColor="#color/colorPrimary"
android:layout_alignParentEnd="true"
android:layout_alignParentRight="true"
android:layout_below="#+id/detail_category_price"
android:layout_margin="10dp"/>
<GridView
android:id="#+id/grid_view"
android:layout_below="#+id/btn_bid"
android:columnWidth="100dp"
android:layout_width="fill_parent"
android:layout_height="wrap_content">
</GridView>
<View
android:layout_width="fill_parent"
android:layout_height="1dip"
android:id="#+id/view"
android:layout_marginTop="5dp"
android:layout_below="#+id/grid_view"
android:background="#000000" />
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="2dp"
android:text="About the seller"
android:layout_margin="5dp"
android:textSize="20sp"
android:textColor="#color/orange"
android:id="#+id/about_seller"
android:layout_below="#+id/view"
/>
<TextView
android:id="#+id/seller_user_name"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="username: bilal"
android:layout_margin="5dp"
android:layout_below="#+id/about_seller"/>
<Button
android:id="#+id/contact_seller_button"
android:text="contact button"
android:layout_margin="5dp"
android:layout_below="#+id/seller_user_name"
android:textColor="#color/colorPrimary"
android:shadowColor="#color/orange"
android:layout_width="wrap_content"
android:layout_height="wrap_content"/>
</RelativeLayout>
</android.support.v7.widget.CardView>
<android.support.v7.widget.RecyclerView
android:id="#+id/bids_recycler_view"
android:layout_width="match_parent"
android:layout_below="#+id/detail_card_view"
android:layout_height="200dp"
android:scrollbars="vertical">
</android.support.v7.widget.RecyclerView>
</android.support.v4.widget.SwipeRefreshLayout>
</RelativeLayout>
here is the layout that i am inflating
<android.support.v7.widget.CardView
android:layout_margin="5dp"
android:id="#+id/card_view"
android:layout_gravity="center"
android:background="#android:color/white"
app:cardElevation="2sp"
app:cardUseCompatPadding="true"
android:layout_width="match_parent"
android:layout_height="200dp">
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="wrap_content">
<TextView
android:id="#+id/bid_text_View"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="$10000"
android:textStyle="bold"
android:textSize="20sp"
android:textColor="#android:color/black"
android:layout_alignParentTop="true"
android:layout_alignParentRight="true"
android:layout_alignParentEnd="true" />
<TextView
android:id="#+id/bidder_user_name"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="bidder Name"
android:textStyle="italic"
android:textSize="16sp"
android:textColor="#android:color/black"
android:layout_below="#+id/bid_text_View"
android:layout_alignParentLeft="true"
android:layout_alignParentStart="true" />
</RelativeLayout>
</android.support.v7.widget.CardView>
</ScrollView>
here is the activity code ->
private RecyclerView mRecyclerView;
private SwipeRefreshLayout mSwipeRefreshLayout;
private BidsAdapter mBidsAdapter;
private ArrayList<String> arrayList;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.item_detials);
String detail = getIntent().getStringExtra(AppGlobals.detial);
setTitle(detail);
getSupportActionBar().setDisplayHomeAsUpEnabled(true);
mRecyclerView = (RecyclerView)findViewById(R.id.bids_recycler_view);
mRecyclerView.setHasFixedSize(true);
LinearLayoutManager linearLayoutManager = new LinearLayoutManager(this);
mSwipeRefreshLayout = (SwipeRefreshLayout) findViewById(R.id.swipe_layout_for_item_detail);
mSwipeRefreshLayout.setColorSchemeResources(R.color.orange, R.color.green,
R.color.colorPrimary, R.color.gray);
mSwipeRefreshLayout.setOnRefreshListener(new SwipeRefreshLayout.OnRefreshListener() {
#Override
public void onRefresh() {
mSwipeRefreshLayout.setRefreshing(false);
}
});
mRecyclerView.setLayoutManager(linearLayoutManager);
mRecyclerView.canScrollVertically(LinearLayoutManager.VERTICAL);
bitmapArrayList = new ArrayList<>();
arrayList = new ArrayList<>();
arrayList.add("test one");
arrayList.add("test two");
arrayList.add("test three");
arrayList.add("test four");
arrayList.add("test five");
}
#Override
protected void onResume() {
super.onResume();
mBidsAdapter = new BidsAdapter(arrayList);
mRecyclerView.setAdapter(mBidsAdapter);
System.out.println(mRecyclerView == null);
System.out.println(mBidsAdapter == null);
mRecyclerView.addOnItemTouchListener(new BidsAdapter(arrayList, getApplicationContext()
, new BidsAdapter.OnItemClickListener() {
#Override
public void onItem(String item) {
System.out.println(item);
}
}));
System.out.println("DONE");
}
static class BidsAdapter extends RecyclerView.Adapter<RecyclerView.ViewHolder> implements
RecyclerView.OnItemTouchListener {
private OnItemClickListener mListener;
private GestureDetector mGestureDetector;
private BidView bidView;
private ArrayList<String> items;
public interface OnItemClickListener {
void onItem(String item);
}
public BidsAdapter(ArrayList<String> data) {
super();
this.items = data;
}
public BidsAdapter(ArrayList<String> categories, Context context, OnItemClickListener listener) {
this.items = categories;
mListener = listener;
mGestureDetector = new GestureDetector(context, new GestureDetector.SimpleOnGestureListener() {
#Override
public boolean onSingleTapUp(MotionEvent e) {
return true;
}
});
}
#Override
public RecyclerView.ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
System.out.println("beforeView");
View view = LayoutInflater.from(parent.getContext()).inflate(R.layout.bids_layout, parent, false);
System.out.println(view == null);
bidView = new BidView(view);
System.out.println("WORKING");
return bidView;
}
#Override
public void onBindViewHolder(RecyclerView.ViewHolder holder, int position) {
bidView.textView.setText(String.valueOf(position));
bidView.bidderTextView.setText(items.get(position));
System.out.println(position);
}
#Override
public boolean onInterceptTouchEvent(RecyclerView rv, MotionEvent e) {
View childView = rv.findChildViewUnder(e.getX(), e.getY());
if (childView != null && mListener != null && mGestureDetector.onTouchEvent(e)) {
mListener.onItem(items.get(rv.getChildPosition(childView)));
return true;
}
return false;
}
#Override
public void onTouchEvent(RecyclerView rv, MotionEvent e) {
}
#Override
public void onRequestDisallowInterceptTouchEvent(boolean disallowIntercept) {
}
#Override
public int getItemCount() {
return items.size();
}
}
static class BidView extends RecyclerView.ViewHolder {
public TextView textView;
public TextView bidderTextView;
public BidView(View itemView) {
super(itemView);
textView = (TextView) itemView.findViewById(R.id.bid_text_View);
bidderTextView = (TextView) itemView.findViewById(R.id.bidder_user_name);
}
}

you replace this
static class BidsAdapter extends RecyclerView.Adapter<RecyclerView.ViewHolder> implements
RecyclerView.OnItemTouchListener {
instead
static class BidsAdapter extends RecyclerView.Adapter<BidsAdapter.BidView> implements
RecyclerView.OnItemTouchListener {

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Java is a programming language and computing platform first released by Sun Microsystems in 1995.

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