the app is used to sign up for events. Now I am unable to display more then one card in the recycler view even though there is data in the database.it only would display only the first row of data. I know this as I have deleted the first row and the app shows the new first row. The php works as i have loaded the page and it gives me the data from the database.
recycler view activity
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();
String time=object.getString("time").trim();
String date=object.getString("date").trim();
String maxparticipants=object.getString("maxparticipants").trim();
Users user= new Users();
user.setName(name);
user.setType(type);
user.setLocation(location);
user.setTime(time);
user.setDate(date);
user.setMaxparticipants(maxparticipants);
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);
}
}
recycler view adpater
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_list,parent,false);
return new UserHolder(userLayout);
}
@Override
public void onBindViewHolder(@NonNull UserHolder holder, int position) {
Users users=usersList.get(position);
holder.Name_id.setText(users.getName());
holder.Type_id.setText(users.getType());
holder.Location_id.setText(users.getLocation());
holder.Time_id.setText(users.getTime());
holder.Date_id.setText(users.getDate());
holder.Slots_id.setText(users.getMaxparticipants());
holder.cardView.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
Intent intent = new Intent(context, cardviewclick.class);
intent.putExtra("Name",holder.Name_id.getText());
intent.putExtra("Type",holder.Type_id.getText());
intent.putExtra("Location",holder.Location_id.getText());
intent.putExtra("Time",holder.Time_id.getText());
intent.putExtra("Date",holder.Date_id.getText());
intent.putExtra("Slots",holder.Slots_id.getText());
context.startActivity(intent);
}
});
}
@Override
public int getItemCount() {
return usersList.size();
}
public class UserHolder extends RecyclerView.ViewHolder{
TextView Name_id,Type_id,Location_id,Time_id,Date_id,Slots_id;
CardView cardView;
public UserHolder(@NonNull View itemView){
super(itemView);
Name_id=itemView.findViewById(R.id.textTitle);
Type_id=itemView.findViewById(R.id.textType);
Location_id=itemView.findViewById(R.id.textLocation);
Time_id=itemView.findViewById(R.id.textTime);
Date_id=itemView.findViewById(R.id.textDate);
Slots_id=itemView.findViewById(R.id.textSlots);
cardView=itemView.findViewById(R.id.card);
}
}
}
activitydisplay.php
conn = new mysqli($servername, $username, $password, $dbname);
$stmt = $conn->prepare("SELECT eventname, type ,location,maxparticipants,time,date FROM activitytable");
$stmt ->execute();
$stmt -> bind_result($eventname, $type, $location,$maxparticipants,$time,$date);
$data= array();
while($stmt ->fetch()){
$temp = array();
$temp['eventname'] = $eventname;
$temp['type'] = $type;
$temp['location'] = $location;
$temp['maxparticipants'] = $maxparticipants;
$temp['time'] = $time;
$temp['date'] = $date;
array_push($data,$temp);
}
echo json_encode($data);
?>
edit 1:add xml code
main activity 2
<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>
card xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="match_parent">
<androidx.cardview.widget.CardView
android:id="@+id/card"
app:cardElevation="12dp"
app:cardCornerRadius="16dp"
android:layout_margin="16dp"
android:backgroundTint="#efefef"
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
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="Date:"
android:textColor="@color/black"
android:textSize="24dp" />
<TextView
android:id="@+id/textDate"
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="Time:"
android:textColor="@color/black"
android:textSize="24dp" />
<TextView
android:id="@+id/textTime"
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="Slots:"
android:textColor="@color/black"
android:textSize="24dp" />
<TextView
android:id="@+id/textSlots"
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>
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Answer
It is because the LinearLayout of the card has match_parent as its layout_height and layout_width so it is taking up the whole space. Can you try to scroll the card up?
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:orientation="vertical"
android:layout_width="match_parent" <-------- here
android:layout_height="match_parent">. <-------- here
The layout_height should be wrap_content.