package
com.example.socialmediaapp;
import
android.content.Intent;
import
android.os.Bundle;
import
android.text.TextUtils;
import
android.view.LayoutInflater;
import
android.view.Menu;
import
android.view.MenuInflater;
import
android.view.MenuItem;
import
android.view.View;
import
android.view.ViewGroup;
import
android.widget.SearchView;
import
android.widget.Toast;
import
androidx.annotation.NonNull;
import
androidx.annotation.Nullable;
import
androidx.core.view.MenuItemCompat;
import
androidx.fragment.app.Fragment;
import
androidx.recyclerview.widget.LinearLayoutManager;
import
androidx.recyclerview.widget.RecyclerView;
import
com.google.firebase.auth.FirebaseAuth;
import
com.google.firebase.database.DataSnapshot;
import
com.google.firebase.database.DatabaseError;
import
com.google.firebase.database.DatabaseReference;
import
com.google.firebase.database.FirebaseDatabase;
import
com.google.firebase.database.ValueEventListener;
import
java.util.ArrayList;
import
java.util.List;
/**
* A simple {@link Fragment} subclass.
*/
public
class
HomeFragment
extends
Fragment {
FirebaseAuth firebaseAuth;
String myuid;
RecyclerView recyclerView;
List<ModelPost> posts;
AdapterPosts adapterPosts;
public
HomeFragment() {
}
@Override
public
View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
View view = inflater.inflate(R.layout.fragment_home, container,
false
);
firebaseAuth = FirebaseAuth.getInstance();
recyclerView = view.findViewById(R.id.postrecyclerview);
recyclerView.setHasFixedSize(
true
);
LinearLayoutManager layoutManager =
new
LinearLayoutManager(getActivity());
layoutManager.setReverseLayout(
true
);
layoutManager.setStackFromEnd(
true
);
recyclerView.setLayoutManager(layoutManager);
posts =
new
ArrayList<>();
loadPosts();
return
view;
}
private
void
loadPosts() {
DatabaseReference databaseReference = FirebaseDatabase.getInstance().getReference(
"Posts"
);
databaseReference.addValueEventListener(
new
ValueEventListener() {
@Override
public
void
onDataChange(
@NonNull
DataSnapshot dataSnapshot) {
posts.clear();
for
(DataSnapshot dataSnapshot1 : dataSnapshot.getChildren()) {
ModelPost modelPost = dataSnapshot1.getValue(ModelPost.
class
);
posts.add(modelPost);
adapterPosts =
new
AdapterPosts(getActivity(), posts);
recyclerView.setAdapter(adapterPosts);
}
}
@Override
public
void
onCancelled(
@NonNull
DatabaseError databaseError) {
Toast.makeText(getActivity(), databaseError.getMessage(), Toast.LENGTH_LONG).show();
}
});
}
private
void
searchPosts(
final
String search) {
DatabaseReference databaseReference = FirebaseDatabase.getInstance().getReference(
"Posts"
);
databaseReference.addValueEventListener(
new
ValueEventListener() {
@Override
public
void
onDataChange(
@NonNull
DataSnapshot dataSnapshot) {
posts.clear();
for
(DataSnapshot dataSnapshot1 : dataSnapshot.getChildren()) {
ModelPost modelPost = dataSnapshot1.getValue(ModelPost.
class
);
if
(modelPost.getTitle().toLowerCase().contains(search.toLowerCase()) ||
modelPost.getDescription().toLowerCase().contains(search.toLowerCase())) {
posts.add(modelPost);
}
adapterPosts =
new
AdapterPosts(getActivity(), posts);
recyclerView.setAdapter(adapterPosts);
}
}
@Override
public
void
onCancelled(
@NonNull
DatabaseError databaseError) {
Toast.makeText(getActivity(), databaseError.getMessage(), Toast.LENGTH_LONG).show();
}
});
}
@Override
public
void
onCreate(
@Nullable
Bundle savedInstanceState) {
setHasOptionsMenu(
true
);
super
.onCreate(savedInstanceState);
}
@Override
public
void
onCreateOptionsMenu(Menu menu, MenuInflater inflater) {
inflater.inflate(R.menu.main_menu, menu);
MenuItem item = menu.findItem(R.id.search);
SearchView searchView = (SearchView) MenuItemCompat.getActionView(item);
searchView.setOnQueryTextListener(
new
SearchView.OnQueryTextListener() {
@Override
public
boolean
onQueryTextSubmit(String query) {
if
(!TextUtils.isEmpty(query)) {
searchPosts(query);
}
else
{
loadPosts();
}
return
false
;
}
@Override
public
boolean
onQueryTextChange(String newText) {
if
(!TextUtils.isEmpty(newText)) {
searchPosts(newText);
}
else
{
loadPosts();
}
return
false
;
}
});
super
.onCreateOptionsMenu(menu, inflater);
}
@Override
public
boolean
onOptionsItemSelected(
@NonNull
MenuItem item) {
if
(item.getItemId() == R.id.logout) {
firebaseAuth.signOut();
startActivity(
new
Intent(getContext(), SplashScreen.
class
));
getActivity().finish();
}
return
super
.onOptionsItemSelected(item);
}
}