Simplify Contacts section

app/src/main/java/cy/agorise/crystalwallet/fragments/ContactsFragment.java

@@ -8,6 +8,8 @@ import android.os.Bundle;
 import android.support.annotation.NonNull;
 import android.support.annotation.Nullable;
 import android.support.v4.app.Fragment;
+import android.support.v7.widget.LinearLayoutManager;
+import android.support.v7.widget.RecyclerView;
 import android.view.LayoutInflater;
 import android.view.View;
 import android.view.ViewGroup;
@@ -17,12 +19,14 @@ import butterknife.ButterKnife;
 import cy.agorise.crystalwallet.R;
 import cy.agorise.crystalwallet.models.Contact;
 import cy.agorise.crystalwallet.viewmodels.ContactListViewModel;
-import cy.agorise.crystalwallet.views.ContactListView;
+import cy.agorise.crystalwallet.views.ContactListAdapter;
 
 public class ContactsFragment extends Fragment {
 
-    @BindView(R.id.vContactListView)
-    ContactListView contactListView;
+    @BindView(R.id.recyclerViewContacts)
+    RecyclerView recyclerViewContacts;
+
+    ContactListAdapter adapter;
 
     public ContactsFragment() {
         // Required empty public constructor
@@ -44,20 +48,26 @@ public class ContactsFragment extends Fragment {
     public View onCreateView(@NonNull LayoutInflater inflater, ViewGroup container,
                              Bundle savedInstanceState) {
         // Inflate the layout for this fragment
-        View v = inflater.inflate(R.layout.fragment_contacts, container, false);
-        ButterKnife.bind(this, v);
+        View view = inflater.inflate(R.layout.fragment_contacts, container, false);
+        ButterKnife.bind(this, view);
 
-        ContactListViewModel contactListViewModel = ViewModelProviders.of(this).get(ContactListViewModel.class);
-        contactListViewModel.init();
+        // Configure RecyclerView and its adapter
+        recyclerViewContacts.setLayoutManager(new LinearLayoutManager(getContext()));
+        adapter = new ContactListAdapter();
+        recyclerViewContacts.setAdapter(adapter);
+
+        // Gets contacts LiveData instance from ContactsViewModel
+        ContactListViewModel contactListViewModel =
+                ViewModelProviders.of(this).get(ContactListViewModel.class);
         LiveData<PagedList<Contact>> contactsLiveData = contactListViewModel.getContactList();
 
         contactsLiveData.observe(this, new Observer<PagedList<Contact>>() {
             @Override
             public void onChanged(@Nullable PagedList<Contact> contacts) {
-                contactListView.setData(contacts);
+                adapter.submitList(contacts);
             }
         });
 
-        return v;
+        return view;
     }
 }

app/src/main/java/cy/agorise/crystalwallet/viewmodels/ContactListViewModel.java

@@ -32,16 +32,6 @@ public class ContactListViewModel extends AndroidViewModel {
         ).build();
     }
 
-    public void init(){
-        contactList = new LivePagedListBuilder(this.db.contactDao().contactsByName(),
-                new PagedList.Config.Builder()
-                        .setEnablePlaceholders(true)
-                        .setPageSize(10)
-                        .setPrefetchDistance(10)
-                        .build()
-        ).build();
-    }
-
     public void init(CryptoNet cryptoNet){
         contactList = new LivePagedListBuilder(this.db.contactDao().contactsByNameAndCryptoNet(cryptoNet.name()),
                 new PagedList.Config.Builder()

app/src/main/java/cy/agorise/crystalwallet/views/ContactListView.java

@@ -1,111 +0,0 @@
-package cy.agorise.crystalwallet.views;
-
-import android.arch.paging.PagedList;
-import android.content.Context;
-import android.support.v4.app.Fragment;
-import android.support.v7.widget.LinearLayoutManager;
-import android.support.v7.widget.RecyclerView;
-import android.util.AttributeSet;
-import android.view.LayoutInflater;
-import android.view.View;
-import android.widget.RelativeLayout;
-
-import cy.agorise.crystalwallet.R;
-import cy.agorise.crystalwallet.models.Contact;
-import cy.agorise.crystalwallet.viewmodels.ContactListViewModel;
-
-/**
- * Created by Henry Varona on 1/15/2018.
- *
- * A list view showing the user contacts
- */
-
-public class ContactListView extends RelativeLayout {
-
-    LayoutInflater mInflater;
-
-    /*
-     * The root view of this view
-     */
-    View rootView;
-    /*
-     * The list view that holds every user contact item
-     */
-    RecyclerView listView;
-    /*
-     * The adapter for the previous list view
-     */
-    ContactListAdapter listAdapter;
-
-    ContactListViewModel contactListViewModel;
-
-    /*
-     * how much contacts will remain to show before the list loads more
-     */
-    private int visibleThreshold = 5;
-    /*
-     * if true, the contact list will be loading new data
-     */
-    private boolean loading = true;
-
-    /*
-     * One of three constructors needed to be inflated from a layout
-     */
-    public ContactListView(Context context){
-        super(context);
-        this.mInflater = LayoutInflater.from(context);
-        init();
-    }
-
-    /*
-     * One of three constructors needed to be inflated from a layout
-     */
-    public ContactListView(Context context, AttributeSet attrs) {
-        super(context, attrs);
-        this.mInflater = LayoutInflater.from(context);
-        init();
-    }
-
-    /*
-     * One of three constructors needed to be inflated from a layout
-     */
-    public ContactListView(Context context, AttributeSet attrs, int defStyle){
-        super(context, attrs, defStyle);
-        this.mInflater = LayoutInflater.from(context);
-        init();
-    }
-
-    /*
-     * Initializes this view
-     */
-    public void init(){
-        rootView = mInflater.inflate(R.layout.contact_list, this, true);
-        this.listView = rootView.findViewById(R.id.contactListView);
-
-        final LinearLayoutManager linearLayoutManager = new LinearLayoutManager(this.getContext());
-        this.listView.setLayoutManager(linearLayoutManager);
-        //Prevents the list to start again when scrolling to the end
-        //this.listView.setNestedScrollingEnabled(false);
-
-    }
-
-    /*
-     * Sets the elements data of this view
-     *
-     * @param data the contacts that will be showed to the user
-     */
-    public void setData(PagedList<Contact> data){
-        //Initializes the adapter of the contact list
-        if (this.listAdapter == null) {
-            this.listAdapter = new ContactListAdapter();
-            this.listView.setAdapter(this.listAdapter);
-        }
-
-        //Sets the data of the transaction list
-        if (data != null) {
-            this.listAdapter.submitList(data);
-        }
-    }
-
-
-}

app/src/main/res/layout/fragment_contacts.xml

@@ -4,9 +4,10 @@
     android:layout_height="match_parent"
     tools:context="cy.agorise.crystalwallet.fragments.ContactsFragment">
 
-    <cy.agorise.crystalwallet.views.ContactListView
+    <android.support.v7.widget.RecyclerView
+        android:id="@+id/recyclerViewContacts"
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
-        android:id="@+id/vContactListView" />
+        tools:listitem="@layout/contact_list_item" />
 
 </FrameLayout>