change main layout, add fragment container

android/app/src/main/java/com/chatman/ChatFragment.java

+package com.chatman;
+
+import android.content.Context;
+import android.net.Uri;
+import android.os.Bundle;
+import android.support.annotation.NonNull;
+import android.support.annotation.Nullable;
+import android.support.v4.app.Fragment;
+import android.support.v4.view.GravityCompat;
+import android.support.v4.widget.DrawerLayout;
+import android.support.v7.widget.LinearLayoutManager;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+
+import com.google.firebase.database.DataSnapshot;
+import com.google.firebase.database.DatabaseError;
+import com.google.firebase.database.ValueEventListener;
+
+
+/**
+ * A simple {@link Fragment} subclass.
+ * Activities that contain this fragment must implement the
+ * {@link ChatFragment.OnFragmentInteractionListener} interface
+ * to handle interaction events.
+ * Use the {@link ChatFragment#newInstance} factory method to
+ * create an instance of this fragment.
+ */
+public class ChatFragment extends Fragment {
+    // the fragment initialization parameters, e.g. ARG_ITEM_NUMBER
+    private static final String ARG_NAMA = "nama";
+    private static final String ARG_KEY = "key";
+
+    private String nama;
+
+    private OnFragmentInteractionListener mListener;
+
+    public ChatFragment() {
+        // Required empty public constructor
+    }
+
+    public static ChatFragment newInstance(String param1) {
+        ChatFragment fragment = new ChatFragment();
+        Bundle args = new Bundle();
+        args.putString(ARG_NAMA, param1);
+        fragment.setArguments(args);
+        return fragment;
+    }
+
+    @Override
+    public void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        if (getArguments() != null) {
+            nama = getArguments().getString(ARG_NAMA);
+        } else {
+            nama = "Dummy";
+        }
+    }
+
+    @Override
+    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
+        // Inflate the layout for this fragment
+        return inflater.inflate(R.layout.fragment_chat, container, false);
+    }
+
+    @Override
+    public void onViewCreated(@NonNull View view, @Nullable Bundle savedInstanceState) {
+        super.onViewCreated(view, savedInstanceState);
+        ((MainActivity) getActivity()).getSupportActionBar().setDisplayHomeAsUpEnabled(true);
+
+//        LinearLayoutManager linearLayoutManager = new LinearLayoutManager(getContext());
+//        linearLayoutManager.setReverseLayout(true);
+//        linearLayoutManager.setStackFromEnd(true);
+//        recycler.setLayoutManager(linearLayoutManager);
+//        getChatList();
+//        adapter = new ChatAdapter(chatList);
+//        recycler.setAdapter(adapter);
+    }
+
+
+    // TODO: Rename method, update argument and hook method into UI event
+    public void onButtonPressed(Uri uri) {
+        if (mListener != null) {
+            mListener.onFragmentInteraction(uri);
+        }
+    }
+
+    @Override
+    public void onAttach(Context context) {
+        super.onAttach(context);
+        if (context instanceof OnFragmentInteractionListener) {
+            mListener = (OnFragmentInteractionListener) context;
+        } else {
+            throw new RuntimeException(context.toString()
+                    + " must implement OnFragmentInteractionListener");
+        }
+    }
+
+    @Override
+    public void onDetach() {
+        super.onDetach();
+        mListener = null;
+    }
+
+    /**
+     * This interface must be implemented by activities that contain this
+     * fragment to allow an interaction in this fragment to be communicated
+     * to the activity and potentially other fragments contained in that
+     * activity.
+     * <p>
+     * See the Android Training lesson <a href=
+     * "http://developer.android.com/training/basics/fragments/communicating.html"
+     * >Communicating with Other Fragments</a> for more information.
+     */
+    public interface OnFragmentInteractionListener {
+        // TODO: Update argument type and name
+        void onFragmentInteraction(Uri uri);
+    }
+}

android/app/src/main/java/com/chatman/adapter/ChatListAdapter.java

 package com.chatman.adapter;
 
 
+import android.app.AlertDialog;
+import android.content.DialogInterface;
+import android.support.v4.app.Fragment;
+import android.support.v7.app.AppCompatActivity;
 import android.support.v7.widget.RecyclerView;
 import android.view.LayoutInflater;
 import android.view.View;
@@ -10,6 +14,7 @@ import android.widget.TextView;
 
 
 import com.bumptech.glide.Glide;
+import com.chatman.MainActivity;
 import com.chatman.R;
 import com.chatman.model.ChatList;
 
@@ -51,7 +56,7 @@ public class ChatListAdapter extends RecyclerView.Adapter<ChatListAdapter.ChatLi
         return items.size();
     }
 
-    public class ChatListHolder extends RecyclerView.ViewHolder {
+    public class ChatListHolder extends RecyclerView.ViewHolder implements View.OnClickListener {
 
         private TextView chatListName;
         private TextView chatListLastMessage;
@@ -73,5 +78,24 @@ public class ChatListAdapter extends RecyclerView.Adapter<ChatListAdapter.ChatLi
             chatListLastMessage.setText(item.getLastMessage());
             chatListName.setText(item.getName());
         }
+
+        @Override
+        public void onClick(View view) {
+//            AppCompatActivity activity = (AppCompatActivity) view.getContext();
+//            Fragment myFragment = new MyFragment();
+//            activity.getSupportFragmentManager().beginTransaction().replace(R.id.fragment_container, myFragment).addToBackStack(null).commit();
+        }
+
+//        public boolean loadFragment(Fragment fragment) {
+//            switching fragment
+//            if (fragment != null) {
+//                ((MainActivity) getActivity())getSupportFragmentManager()
+//                        .beginTransaction()
+//                        .replace(R.id.fragment_container, fragment)
+//                        .commit();
+//                return true;
+//            }
+//            return false;
+//        }
     }
 }
\ No newline at end of file

android/app/src/main/res/layout/content_main.xml

@@ -8,15 +8,22 @@
     tools:context=".MainActivity"
     tools:showIn="@layout/app_bar_main">
 
-    <android.support.v7.widget.RecyclerView
-        android:id="@+id/chat_list_rv"
+    <FrameLayout
+        android:id="@+id/fragment_container"
         android:layout_width="match_parent"
         android:layout_height="match_parent"
-        app:layout_constraintStart_toStartOf="parent"
-        app:layout_constraintEnd_toEndOf="parent"
-        app:layout_constraintTop_toTopOf="parent"
-        app:layout_constraintBottom_toBottomOf="parent">
+        app:layout_constraintLeft_toLeftOf="parent"
+        app:layout_constraintTop_toTopOf="parent" />
 
-    </android.support.v7.widget.RecyclerView>
+    <!--<android.support.v7.widget.RecyclerView-->
+        <!--android:id="@+id/chat_list_rv"-->
+        <!--android:layout_width="match_parent"-->
+        <!--android:layout_height="match_parent"-->
+        <!--app:layout_constraintStart_toStartOf="parent"-->
+        <!--app:layout_constraintEnd_toEndOf="parent"-->
+        <!--app:layout_constraintTop_toTopOf="parent"-->
+        <!--app:layout_constraintBottom_toBottomOf="parent">-->
+
+    <!--</android.support.v7.widget.RecyclerView>-->
 
 </android.support.constraint.ConstraintLayout>
\ No newline at end of file

android/app/src/main/res/layout/fragment_chat.xml

+<?xml version="1.0" encoding="utf-8"?>
+<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    tools:context=".ChatFragment">
+
+    <!-- TODO: Update blank fragment layout -->
+    <TextView
+        android:layout_width="match_parent"
+        android:layout_height="match_parent"
+        android:text="@string/hello_blank_fragment" />
+
+</FrameLayout>
\ No newline at end of file

android/app/src/main/res/values/strings.xml

@@ -19,5 +19,8 @@
     <string name="register">Daftar</string>
     <string name="register_word">Belum punya akun?</string>
     <string name="login_word">Sudah memiliki akun?</string>
+
+    <!-- TODO: Remove or change this placeholder text -->
+    <string name="hello_blank_fragment">Hello blank fragment</string>
 </resources>