I couldnt able to display my data from firebase to my listview in android application. Rather it only shows one data. Heres the current data of my database: Database
And this is my java:
public class scheduleList extends ArrayAdapter<Schedule> {
private Activity context;
private List<Schedule> scheduleList;
public scheduleList(Activity context, List<Schedule> scheduleList){
super(context, R.layout.listlayout, scheduleList);
this.context=context;
this.scheduleList=scheduleList;
}
@NonNull
@Override
public View getView(int position, @Nullable View convertView, @NonNull ViewGroup parent) {
LayoutInflater inflater = context.getLayoutInflater();
View listviewItem = inflater.inflate(R.layout.listlayout, null, true);
TextView textViewName = (TextView) listviewItem.findViewById(R.id.textViewName);
TextView textViewSchedule = (TextView) listviewItem.findViewById(R.id.textViewSchedule);
Schedule schedule = scheduleList.get(position);
textViewName.setText(schedule.getAppointer());
textViewSchedule.setText(schedule.getAppointment_schedule());
return listviewItem;
}}
My java file:
public class Appointment extends AppCompatActivity {
CalendarView calendarView;
TextView myDate;
private Button btn1;
ListView listViewSchedule;
List<Schedule> scheduleList;
DatabaseReference databaseAppointments;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_appointment);
databaseAppointments = FirebaseDatabase.getInstance().getReference("appointment");
calendarView = (CalendarView) findViewById(R.id.calendarView);
myDate = (TextView) findViewById(R.id.myDate);
listViewSchedule=(ListView) findViewById(R.id.listViewSchedule);
scheduleList = new ArrayList<>();
btn1 = (Button) findViewById(R.id.appt);
btn1.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
Intent myIntent = new Intent(Appointment.this, appointments2.class);
Appointment.this.startActivity(myIntent);
}
});
calendarView.setOnDateChangeListener(new CalendarView.OnDateChangeListener() {
@Override
public void onSelectedDayChange(@NonNull CalendarView view, int i, int i1, int i2) {
String date = (i1 + 1) + "/" + i2 + "/" + i;
myDate.setText(date);
}
});
}
@Override
protected void onStart() {
super.onStart();
databaseAppointments.addValueEventListener(new ValueEventListener() {
@Override
public void onDataChange(DataSnapshot dataSnapshot) {
scheduleList.clear();
for(DataSnapshot scheduleSnapshot: dataSnapshot.getChildren()){
Schedule schedule = scheduleSnapshot.getValue(Schedule.class);
scheduleList.add(schedule);
}
scheduleList adapter = new scheduleList(Appointment.this, scheduleList);
listViewSchedule.setAdapter(adapter);
}
@Override
public void onCancelled(DatabaseError databaseError) {
}
});
}}
and lastly my xml file containing the listview:
<ScrollView 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"
tools:context="com.example.cs409.instappoint.Appointment">
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="vertical">
<TextView
android:id="@+id/myDate"
android:textSize="23sp"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Select the date"
android:textColor="#ee912a"
android:textAlignment="center"
android:layout_marginStart="125dp"
android:layout_marginTop="48dp"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintTop_toTopOf="parent" />
<LinearLayout
android:layout_marginTop="10dp"
android:layout_width="380dp"
android:layout_marginStart="10dp"
android:layout_gravity="center"
android:layout_height="wrap_content">
<CalendarView
android:id="@+id/calendarView"
android:layout_width="wrap_content"
android:layout_height="320dp">
</CalendarView>
</LinearLayout>
<View
android:layout_width="500dp"
android:layout_height="1dp"
android:layout_gravity="center"
android:layout_marginEnd="30dp"
android:layout_marginStart="30dp"
android:layout_marginTop="0dp"
android:background="#ee912a" />
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Appointments"
android:layout_gravity="center_horizontal"
android:layout_marginTop="5dp"/>
<ListView
android:id="@+id/listViewSchedule"
android:layout_width="match_parent"
android:layout_height="match_parent" />
<Button
android:id="@+id/appt"
android:layout_width="450dp"
android:layout_height="wrap_content"
android:layout_gravity="center_horizontal"
android:layout_marginEnd="120dp"
android:layout_marginStart="120dp"
android:layout_marginTop="130dp"
android:background="@drawable/bg_calen"
android:paddingLeft="20dp"
android:paddingRight="20dp"
android:text="Appoint now"
android:textColor="#fff" />
</LinearLayout>
Im guessing that the scrollview layout affects the listview but im not sure. Also the listview display whatevers the first on the list.
use FirebaseRecyclerAdapter. search example of how to use FirebaseRecylerAdapter with example.
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