106 lines
3.5 KiB
Java
106 lines
3.5 KiB
Java
package cy.agorise.crystalwallet.fragments;
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import androidx.lifecycle.LiveData;
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import androidx.lifecycle.Observer;
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import androidx.lifecycle.ViewModelProviders;
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import androidx.paging.PagedList;
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import android.os.Bundle;
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import androidx.annotation.NonNull;
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import androidx.annotation.Nullable;
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import com.google.android.material.floatingactionbutton.FloatingActionButton;
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import androidx.fragment.app.Fragment;
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import androidx.recyclerview.widget.LinearLayoutManager;
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import androidx.recyclerview.widget.RecyclerView;
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import android.view.LayoutInflater;
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import android.view.View;
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import android.view.ViewGroup;
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import android.widget.TextView;
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import butterknife.BindView;
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import butterknife.ButterKnife;
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import cy.agorise.crystalwallet.R;
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import cy.agorise.crystalwallet.models.Contact;
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import cy.agorise.crystalwallet.viewmodels.ContactListViewModel;
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import cy.agorise.crystalwallet.views.ContactListAdapter;
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public class ContactsFragment extends Fragment {
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@BindView(R.id.rvContacts)
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RecyclerView rvContacts;
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@BindView(R.id.tvNoContacts)
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TextView tvNoContacts;
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ContactListAdapter adapter;
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FloatingActionButton fabAddContact;
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public ContactsFragment() {
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// Required empty public constructor
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}
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public static ContactsFragment newInstance() {
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ContactsFragment fragment = new ContactsFragment();
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Bundle args = new Bundle();
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fragment.setArguments(args);
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return fragment;
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}
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@Override
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public void onCreate(Bundle savedInstanceState) {
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super.onCreate(savedInstanceState);
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}
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@Override
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public View onCreateView(@NonNull LayoutInflater inflater, ViewGroup container,
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Bundle savedInstanceState) {
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// Inflate the layout for this fragment
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View view = inflater.inflate(R.layout.fragment_contacts, container, false);
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ButterKnife.bind(this, view);
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// Configure RecyclerView and its adapter
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rvContacts.setLayoutManager(new LinearLayoutManager(getContext()));
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adapter = new ContactListAdapter();
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rvContacts.setAdapter(adapter);
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fabAddContact = getActivity().findViewById(R.id.fabAddContact);
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// Hides the fab when scrolling down
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rvContacts.addOnScrollListener(new RecyclerView.OnScrollListener() {
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@Override
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public void onScrolled(RecyclerView recyclerView, int dx, int dy) {
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super.onScrolled(recyclerView, dx, dy);
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// Scroll down
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if(dy > 0 && fabAddContact.isShown())
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fabAddContact.hide();
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// Scroll up
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if(dy < 0 && !fabAddContact.isShown())
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fabAddContact.show();
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}
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});
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// Gets contacts LiveData instance from ContactsViewModel
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ContactListViewModel contactListViewModel =
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ViewModelProviders.of(this).get(ContactListViewModel.class);
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LiveData<PagedList<Contact>> contactsLiveData = contactListViewModel.getContactList();
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contactsLiveData.observe(this, new Observer<PagedList<Contact>>() {
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@Override
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public void onChanged(@Nullable PagedList<Contact> contacts) {
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adapter.submitList(contacts);
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if(contacts != null && contacts.size() > 0){
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tvNoContacts.setVisibility(View.INVISIBLE);
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}
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else{
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tvNoContacts.setVisibility(View.VISIBLE);
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}
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}
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});
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return view;
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}
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}
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