- Now the user can select a contact in the Send Fragment

app/src/main/java/cy/agorise/crystalwallet/dao/ContactDao.java

@@ -3,6 +3,7 @@ package cy.agorise.crystalwallet.dao;
 import android.arch.lifecycle.LiveData;
 import android.arch.paging.LivePagedListProvider;
 import android.arch.persistence.room.Dao;
+import android.arch.persistence.room.Delete;
 import android.arch.persistence.room.Insert;
 import android.arch.persistence.room.OnConflictStrategy;
 import android.arch.persistence.room.Query;
@@ -26,6 +27,9 @@ public interface ContactDao {
     @Query("SELECT * FROM contact ORDER BY name ASC")
     LivePagedListProvider<Integer, Contact>  contactsByName();
 
+    @Query("SELECT c.* FROM contact c WHERE c.id IN (SELECT DISTINCT(ca.contact_id) FROM contact_address ca WHERE ca.crypto_net == :cryptoNet) ORDER BY name ASC")
+    LivePagedListProvider<Integer, Contact>  contactsByNameAndCryptoNet(String cryptoNet);
+
     @Query("SELECT * FROM contact WHERE id = :id")
     LiveData<Contact> getById(long id);
 
@@ -49,4 +53,7 @@ public interface ContactDao {
 
     @Update(onConflict = OnConflictStrategy.REPLACE)
     public void updateAddressesFields(ContactAddress... contactAddresses);
+
+    @Delete
+    public void deleteContacts(Contact... contacts);
 }

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

@@ -0,0 +1,129 @@
+package cy.agorise.crystalwallet.fragments;
+
+import android.app.Dialog;
+import android.arch.lifecycle.LiveData;
+import android.arch.lifecycle.Observer;
+import android.arch.lifecycle.ViewModelProviders;
+import android.arch.paging.PagedList;
+import android.content.DialogInterface;
+import android.content.Intent;
+import android.os.Bundle;
+import android.os.Handler;
+import android.support.annotation.NonNull;
+import android.support.annotation.Nullable;
+import android.support.design.widget.FloatingActionButton;
+import android.support.v4.app.DialogFragment;
+import android.support.v7.app.AlertDialog;
+import android.support.v7.widget.LinearLayoutManager;
+import android.support.v7.widget.RecyclerView;
+import android.text.Editable;
+import android.util.Log;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.view.Window;
+import android.widget.Button;
+import android.widget.EditText;
+import android.widget.ImageView;
+import android.widget.Spinner;
+import android.widget.TextView;
+
+import com.google.zxing.Result;
+
+import java.util.ArrayList;
+import java.util.List;
+
+import butterknife.BindView;
+import butterknife.ButterKnife;
+import butterknife.OnClick;
+import butterknife.OnItemSelected;
+import butterknife.OnTextChanged;
+import cy.agorise.crystalwallet.R;
+import cy.agorise.crystalwallet.cryptonetinforequests.CryptoNetInfoRequestListener;
+import cy.agorise.crystalwallet.cryptonetinforequests.CryptoNetInfoRequests;
+import cy.agorise.crystalwallet.cryptonetinforequests.ValidateBitsharesSendRequest;
+import cy.agorise.crystalwallet.dao.CrystalDatabase;
+import cy.agorise.crystalwallet.enums.CryptoNet;
+import cy.agorise.crystalwallet.models.Contact;
+import cy.agorise.crystalwallet.models.CryptoCoinBalance;
+import cy.agorise.crystalwallet.models.CryptoCurrency;
+import cy.agorise.crystalwallet.models.CryptoNetAccount;
+import cy.agorise.crystalwallet.models.GrapheneAccount;
+import cy.agorise.crystalwallet.viewmodels.ContactListViewModel;
+import cy.agorise.crystalwallet.viewmodels.CryptoNetAccountListViewModel;
+import cy.agorise.crystalwallet.viewmodels.validators.SendTransactionValidator;
+import cy.agorise.crystalwallet.viewmodels.validators.UIValidatorListener;
+import cy.agorise.crystalwallet.viewmodels.validators.validationfields.ValidationField;
+import cy.agorise.crystalwallet.views.ContactSelectionListAdapter;
+import cy.agorise.crystalwallet.views.CryptoCurrencyAdapter;
+import cy.agorise.crystalwallet.views.CryptoNetAccountAdapter;
+import me.dm7.barcodescanner.zxing.ZXingScannerView;
+
+public class ContactSelectionFragment extends DialogFragment implements ContactSelectionListAdapter.ContactSelectionListAdapterListener{
+
+    private CryptoNet cryptoNet;
+    private CrystalDatabase db;
+    private AlertDialog.Builder builder;
+
+    @BindView(R.id.contactListView)
+    RecyclerView contactSelectionListView;
+
+    public static ContactSelectionFragment newInstance(CryptoNet cryptoNet) {
+        ContactSelectionFragment f = new ContactSelectionFragment();
+
+        // Supply num input as an argument.
+        Bundle args = new Bundle();
+        args.putString("CRYPTO_NET", cryptoNet.name());
+        f.setArguments(args);
+
+        return f;
+    }
+
+    @Override
+    public void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+    }
+
+    @NonNull
+    @Override
+    public Dialog onCreateDialog(Bundle savedInstanceState) {
+        //AlertDialog.Builder
+        builder = new AlertDialog.Builder(getActivity(), R.style.SendTransactionTheme);
+
+        LayoutInflater inflater = getActivity().getLayoutInflater();
+        View view = inflater.inflate(R.layout.contact_list, null);
+        ButterKnife.bind(this, view);
+
+        final LinearLayoutManager linearLayoutManager = new LinearLayoutManager(this.getContext());
+        this.contactSelectionListView.setLayoutManager(linearLayoutManager);
+        //Prevents the list to start again when scrolling to the end
+        this.contactSelectionListView.setNestedScrollingEnabled(false);
+        final ContactSelectionListAdapter contactSelectionListAdapter = new ContactSelectionListAdapter();
+        contactSelectionListAdapter.setListener(this);
+        contactSelectionListView.setAdapter(contactSelectionListAdapter);
+
+        this.cryptoNet  = CryptoNet.valueOf(getArguments().getString("CRYPTO_NET"));
+        if (this.cryptoNet != null) {
+            ContactListViewModel contactListViewModel = ViewModelProviders.of(this).get(ContactListViewModel.class);
+            contactListViewModel.init(this.cryptoNet);
+            LiveData<PagedList<Contact>> contactsLiveData = contactListViewModel.getContactList();
+
+            contactsLiveData.observe(this, new Observer<PagedList<Contact>>() {
+                @Override
+                public void onChanged(@Nullable PagedList<Contact> contacts) {
+                    contactSelectionListAdapter.setList(contacts);
+                }
+            });
+        }
+
+        return builder.setView(view).create();
+    }
+
+    @Override
+    public void onContactSelected(Contact contact) {
+        Intent result = new Intent();
+        result.putExtra("CONTACT_ID", contact.getId());
+        getTargetFragment().onActivityResult(getTargetRequestCode(), 1, result);
+        this.dismiss();
+    }
+}

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

@@ -47,6 +47,7 @@ public class ContactsFragment extends Fragment {
         ButterKnife.bind(this, v);
 
         ContactListViewModel contactListViewModel = ViewModelProviders.of(this).get(ContactListViewModel.class);
+        contactListViewModel.init();
         LiveData<PagedList<Contact>> contactsLiveData = contactListViewModel.getContactList();
 
         contactsLiveData.observe(this, new Observer<PagedList<Contact>>() {

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

@@ -5,6 +5,7 @@ import android.arch.lifecycle.LiveData;
 import android.arch.lifecycle.Observer;
 import android.arch.lifecycle.ViewModelProviders;
 import android.content.DialogInterface;
+import android.content.Intent;
 import android.os.Bundle;
 import android.os.Handler;
 import android.support.annotation.NonNull;
@@ -12,6 +13,7 @@ import android.support.annotation.Nullable;
 import android.support.design.widget.FloatingActionButton;
 import android.support.v4.app.DialogFragment;
 import android.support.v4.app.Fragment;
+import android.support.v4.app.FragmentTransaction;
 import android.support.v7.app.AlertDialog;
 import android.support.v7.app.AppCompatActivity;
 import android.text.Editable;
@@ -23,8 +25,10 @@ import android.view.Window;
 import android.view.animation.LinearInterpolator;
 import android.widget.Button;
 import android.widget.EditText;
+import android.widget.ImageView;
 import android.widget.Spinner;
 import android.widget.TextView;
+import android.widget.Toast;
 
 import com.google.zxing.Result;
 
@@ -41,10 +45,13 @@ import cy.agorise.crystalwallet.cryptonetinforequests.CryptoNetInfoRequestListen
 import cy.agorise.crystalwallet.cryptonetinforequests.CryptoNetInfoRequests;
 import cy.agorise.crystalwallet.cryptonetinforequests.ValidateBitsharesSendRequest;
 import cy.agorise.crystalwallet.dao.CrystalDatabase;
+import cy.agorise.crystalwallet.models.Contact;
+import cy.agorise.crystalwallet.models.ContactAddress;
 import cy.agorise.crystalwallet.models.CryptoCoinBalance;
 import cy.agorise.crystalwallet.models.CryptoCurrency;
 import cy.agorise.crystalwallet.models.CryptoNetAccount;
 import cy.agorise.crystalwallet.models.GrapheneAccount;
+import cy.agorise.crystalwallet.viewmodels.ContactViewModel;
 import cy.agorise.crystalwallet.viewmodels.CryptoNetAccountListViewModel;
 import cy.agorise.crystalwallet.viewmodels.CryptoNetAccountViewModel;
 import cy.agorise.crystalwallet.viewmodels.validators.SendTransactionValidator;
@@ -82,6 +89,8 @@ public class SendTransactionFragment extends DialogFragment implements UIValidat
     FloatingActionButton btnSend;
     @BindView(R.id.btnCancel)
     TextView btnCancel;
+    @BindView(R.id.ivPeople)
+    ImageView ivPeople;
 
     Button btnScanQrCode;
 
@@ -222,6 +231,50 @@ public class SendTransactionFragment extends DialogFragment implements UIValidat
         this.sendTransactionValidator.validate();
     }
 
+    @OnClick(R.id.ivPeople)
+    public void searchContact(){
+        FragmentTransaction ft = this.getActivity().getSupportFragmentManager().beginTransaction();
+        Fragment prev = this.getActivity().getSupportFragmentManager().findFragmentByTag("ContactSelectionDialog");
+        if (prev != null) {
+            ft.remove(prev);
+        }
+        ft.addToBackStack(null);
+
+        // Show a contact selection list
+        ContactSelectionFragment contactSelectionFragment = ContactSelectionFragment.newInstance(this.cryptoNetAccount.getCryptoNet());
+        contactSelectionFragment.setTargetFragment(this, 1);
+        contactSelectionFragment.show(ft, "ContactSelectionDialog");
+    }
+
+    @Override
+    public void onActivityResult(int requestCode, int resultCode, Intent data) {
+        super.onActivityResult(requestCode,resultCode,data);
+
+        if(requestCode == 1) {
+            if(resultCode == 1) {
+                long contactId = data.getLongExtra("CONTACT_ID",-1);
+                if (contactId > -1){
+                    ContactViewModel contactViewModel = ViewModelProviders.of(this).get(ContactViewModel.class);
+                    contactViewModel.init(contactId);
+                    LiveData<List<ContactAddress>> contactAddressesLiveData = contactViewModel.getContactAddresses();
+
+                    contactAddressesLiveData.observe(this, new Observer<List<ContactAddress>>() {
+                        @Override
+                        public void onChanged(@Nullable List<ContactAddress> contactAddresses) {
+                            if (contactAddresses != null) {
+                                for (ContactAddress contactAddress : contactAddresses) {
+                                    if (contactAddress.getCryptoNet() == cryptoNetAccount.getCryptoNet()) {
+                                        etTo.setText(contactAddress.getAddress());
+                                    }
+                                }
+                            }
+                        }
+                    });
+                }
+            }
+        }
+    }
+
     @OnClick(R.id.btnCancel)
     public void cancel(){
         this.dismiss();

app/src/main/java/cy/agorise/crystalwallet/models/Contact.java

@@ -13,6 +13,8 @@ import android.support.v7.recyclerview.extensions.DiffCallback;
 import java.util.ArrayList;
 import java.util.List;
 
+import cy.agorise.crystalwallet.enums.CryptoNet;
+
 /**
  * Represents a user contact
  *
@@ -85,6 +87,18 @@ public class Contact {
         address.setContactId(this.getId());
     }
 
+    public ContactAddress getCryptoNetAddress(CryptoNet cryptoNet){
+        if (this.mAddresses != null) {
+            for (ContactAddress address : this.mAddresses) {
+                if (address.getCryptoNet() == cryptoNet) {
+                    return address;
+                }
+            }
+        }
+
+        return null;
+    }
+
     public static final DiffCallback<Contact> DIFF_CALLBACK = new DiffCallback<Contact>() {
         @Override
         public boolean areItemsTheSame(

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

@@ -6,6 +6,7 @@ import android.arch.lifecycle.LiveData;
 import android.arch.paging.PagedList;
 
 import cy.agorise.crystalwallet.dao.CrystalDatabase;
+import cy.agorise.crystalwallet.enums.CryptoNet;
 import cy.agorise.crystalwallet.models.Contact;
 import cy.agorise.crystalwallet.models.CryptoCoinTransaction;
 
@@ -30,6 +31,26 @@ public class ContactListViewModel extends AndroidViewModel {
         );
     }
 
+    public void init(){
+        contactList = this.db.contactDao().contactsByName().create(0,
+                new PagedList.Config.Builder()
+                        .setEnablePlaceholders(true)
+                        .setPageSize(10)
+                        .setPrefetchDistance(10)
+                        .build()
+        );
+    }
+
+    public void init(CryptoNet cryptoNet){
+        contactList = this.db.contactDao().contactsByNameAndCryptoNet(cryptoNet.name()).create(0,
+                new PagedList.Config.Builder()
+                        .setEnablePlaceholders(true)
+                        .setPageSize(10)
+                        .setPrefetchDistance(10)
+                        .build()
+        );
+    }
+
     public LiveData<PagedList<Contact>> getContactList(){
         return this.contactList;
     }

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

@@ -0,0 +1,57 @@
+package cy.agorise.crystalwallet.views;
+
+
+import android.support.v7.recyclerview.extensions.ListAdapter;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+
+import cy.agorise.crystalwallet.R;
+import cy.agorise.crystalwallet.models.Contact;
+
+/**
+ * Created by Henry Varona on 2/16/2018.
+ *
+ * An adapter to show the elements of a list of contacts to be selected by the user
+ */
+
+public class ContactSelectionListAdapter extends ListAdapter<Contact, ContactSelectionViewHolder> implements ContactSelectionViewHolder.ContactSelectionViewHolderListener {
+
+    private ContactSelectionListAdapterListener listener;
+
+    public ContactSelectionListAdapter() {
+        super(Contact.DIFF_CALLBACK);
+    }
+
+    @Override
+    public ContactSelectionViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
+        View v = LayoutInflater.from(parent.getContext()).inflate(R.layout.contact_selection_list_item,parent,false);
+        return new ContactSelectionViewHolder(v);
+    }
+
+    @Override
+    public void onBindViewHolder(ContactSelectionViewHolder holder, int position) {
+        Contact contact = getItem(position);
+        if (contact != null) {
+            holder.bindTo(contact);
+            holder.setListener(this);
+        } else {
+            holder.clear();
+        }
+    }
+
+    @Override
+    public void onContactSelected(ContactSelectionViewHolder contactSelectionViewHolder, Contact contact) {
+        if (this.listener != null){
+            this.listener.onContactSelected(contact);
+        }
+    }
+
+    public void setListener(ContactSelectionListAdapterListener listener){
+        this.listener = listener;
+    }
+
+    public interface ContactSelectionListAdapterListener{
+        public void onContactSelected(Contact contact);
+    }
+}

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

@@ -0,0 +1,79 @@
+package cy.agorise.crystalwallet.views;
+
+import android.content.Context;
+import android.content.DialogInterface;
+import android.content.Intent;
+import android.support.v7.app.AlertDialog;
+import android.support.v7.widget.RecyclerView;
+import android.view.View;
+import android.widget.ImageView;
+import android.widget.TextView;
+
+import cy.agorise.crystalwallet.R;
+import cy.agorise.crystalwallet.activities.CreateContactActivity;
+import cy.agorise.crystalwallet.dao.CrystalDatabase;
+import cy.agorise.crystalwallet.models.Contact;
+
+/**
+ * Created by Henry Varona on 2/16/2018.
+ *
+ * Represents an element view from the Contact Selection List
+ */
+
+public class ContactSelectionViewHolder extends RecyclerView.ViewHolder {
+    private TextView tvName;
+    private ImageView ivThumbnail;
+    private TextView tvLastPaid;
+    private Context context;
+    private ContactSelectionViewHolderListener listener;
+
+    public ContactSelectionViewHolder(View itemView) {
+        super(itemView);
+        //TODO: use ButterKnife to load this
+        tvName = (TextView) itemView.findViewById(R.id.tvContactName);
+        ivThumbnail = (ImageView) itemView.findViewById(R.id.ivContactThumbnail);
+        tvLastPaid = (TextView) itemView.findViewById(R.id.tvLastPaid);
+        this.context = itemView.getContext();
+
+    }
+
+    public void setListener(ContactSelectionViewHolderListener listener){
+        this.listener = listener;
+    }
+
+    /*
+     * Clears the information in this element view
+     */
+    public void clear(){
+        tvName.setText("");
+        ivThumbnail.setImageResource(android.R.color.transparent);
+        tvLastPaid.setText("");
+    }
+
+    /*
+     * Binds this view with the data of an element of the list
+     */
+    public void bindTo(final Contact contact) {
+        if (contact == null){
+            this.clear();
+        } else {
+            final ContactSelectionViewHolder thisViewHolder = this;
+
+            tvName.setText(contact.getName());
+            tvLastPaid.setText("Paid: 1 Jan, 2001 01:01");
+
+            this.itemView.setOnClickListener(new View.OnClickListener() {
+                @Override
+                public void onClick(View view) {
+                    if (listener != null){
+                        listener.onContactSelected(thisViewHolder, contact);
+                    }
+                }
+            });
+        }
+    }
+
+    public interface ContactSelectionViewHolderListener {
+        public void onContactSelected(ContactSelectionViewHolder contactSelectionViewHolder, Contact contact);
+    }
+}

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

@@ -0,0 +1,39 @@
+<?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:layout_width="match_parent"
+    android:layout_height="wrap_content"
+    android:orientation="vertical"
+    android:paddingLeft="10dp"
+    android:paddingRight="10dp"
+    android:paddingTop="10dp">
+
+    <RelativeLayout
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:layout_alignParentStart="true"
+        android:layout_alignParentTop="true">
+
+        <ImageView
+            android:layout_width="@dimen/icon_size"
+            android:layout_height="@dimen/icon_size"
+            android:id="@+id/ivContactThumbnail"/>
+
+        <TextView
+            android:id="@+id/tvContactName"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:layout_toRightOf="@+id/ivContactThumbnail"
+            android:text="Loading name..."
+            android:textStyle="bold" />
+
+        <TextView
+            android:id="@+id/tvLastPaid"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:layout_below="@+id/tvContactName"
+            android:layout_toRightOf="@+id/ivContactThumbnail"
+            android:text="Paid: Jan 1, 2001, 01:01"
+            android:textColor="@android:color/darker_gray" />
+    </RelativeLayout>
+</LinearLayout>