created initial chat activity

Android/app/src/main/AndroidManifest.xml

@@ -32,6 +32,15 @@
                 <category android:name="android.intent.category.LAUNCHER" />
             </intent-filter>
         </activity>
+        <activity
+            android:name=".ChatActivity"
+            android:label="@string/title_activity_chat"
+            android:parentActivityName=".NavigationActivity"
+            android:theme="@style/AppTheme.NoActionBar">
+            <meta-data
+                android:name="android.support.PARENT_ACTIVITY"
+                android:value="com.thesis.smukov.anative.NavigationActivity" />
+        </activity>
     </application>
 
 </manifest>

Android/app/src/main/java/com/thesis/smukov/anative/Chat/ChatAdapter.java

@@ -0,0 +1,144 @@
+package com.thesis.smukov.anative.Chat;
+
+import android.app.Activity;
+import android.content.Context;
+import android.view.Gravity;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.BaseAdapter;
+import android.widget.LinearLayout;
+import android.widget.RelativeLayout;
+import android.widget.TextView;
+
+import com.thesis.smukov.anative.R;
+
+import java.util.List;
+
+/**
+ * Created by smuko on 26-Jun-16.
+ */
+public class ChatAdapter extends BaseAdapter {
+
+    private final List<ChatMessage> chatMessages;
+    private Activity context;
+
+    public ChatAdapter(Activity context, List<ChatMessage> chatMessages) {
+        this.context = context;
+        this.chatMessages = chatMessages;
+    }
+
+    @Override
+    public int getCount() {
+        if (chatMessages != null) {
+            return chatMessages.size();
+        } else {
+            return 0;
+        }
+    }
+
+    @Override
+    public ChatMessage getItem(int position) {
+        if (chatMessages != null) {
+            return chatMessages.get(position);
+        } else {
+            return null;
+        }
+    }
+
+    @Override
+    public long getItemId(int position) {
+        return position;
+    }
+
+    @Override
+    public View getView(final int position, View convertView, ViewGroup parent) {
+        ViewHolder holder;
+        ChatMessage chatMessage = getItem(position);
+        LayoutInflater vi = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
+
+        if (convertView == null) {
+            convertView = vi.inflate(R.layout.list_item_chat_message, null);
+            holder = createViewHolder(convertView);
+            convertView.setTag(holder);
+        } else {
+            holder = (ViewHolder) convertView.getTag();
+        }
+
+        boolean myMsg = chatMessage.getIsme() ;//Just a dummy check
+        //to simulate whether it me or other sender
+        setAlignment(holder, myMsg);
+        holder.txtMessage.setText(chatMessage.getMessage());
+        holder.txtInfo.setText(chatMessage.getDate());
+
+        return convertView;
+    }
+
+    public void add(ChatMessage message) {
+        chatMessages.add(message);
+    }
+
+    public void add(List<ChatMessage> messages) {
+        chatMessages.addAll(messages);
+    }
+
+    private void setAlignment(ViewHolder holder, boolean isMe) {
+        if (!isMe) {
+            holder.contentWithBG.setBackgroundResource(R.drawable.in_message_bg);
+
+            LinearLayout.LayoutParams layoutParams =
+                    (LinearLayout.LayoutParams) holder.contentWithBG.getLayoutParams();
+            layoutParams.gravity = Gravity.RIGHT;
+            holder.contentWithBG.setLayoutParams(layoutParams);
+
+            RelativeLayout.LayoutParams lp =
+                    (RelativeLayout.LayoutParams) holder.content.getLayoutParams();
+            lp.addRule(RelativeLayout.ALIGN_PARENT_LEFT, 0);
+            lp.addRule(RelativeLayout.ALIGN_PARENT_RIGHT);
+            holder.content.setLayoutParams(lp);
+            layoutParams = (LinearLayout.LayoutParams) holder.txtMessage.getLayoutParams();
+            layoutParams.gravity = Gravity.RIGHT;
+            holder.txtMessage.setLayoutParams(layoutParams);
+
+            layoutParams = (LinearLayout.LayoutParams) holder.txtInfo.getLayoutParams();
+            layoutParams.gravity = Gravity.RIGHT;
+            holder.txtInfo.setLayoutParams(layoutParams);
+        } else {
+            holder.contentWithBG.setBackgroundResource(R.drawable.out_message_bg);
+
+            LinearLayout.LayoutParams layoutParams =
+                    (LinearLayout.LayoutParams) holder.contentWithBG.getLayoutParams();
+            layoutParams.gravity = Gravity.LEFT;
+            holder.contentWithBG.setLayoutParams(layoutParams);
+
+            RelativeLayout.LayoutParams lp =
+                    (RelativeLayout.LayoutParams) holder.content.getLayoutParams();
+            lp.addRule(RelativeLayout.ALIGN_PARENT_RIGHT, 0);
+            lp.addRule(RelativeLayout.ALIGN_PARENT_LEFT);
+            holder.content.setLayoutParams(lp);
+            layoutParams = (LinearLayout.LayoutParams) holder.txtMessage.getLayoutParams();
+            layoutParams.gravity = Gravity.LEFT;
+            holder.txtMessage.setLayoutParams(layoutParams);
+
+            layoutParams = (LinearLayout.LayoutParams) holder.txtInfo.getLayoutParams();
+            layoutParams.gravity = Gravity.LEFT;
+            holder.txtInfo.setLayoutParams(layoutParams);
+        }
+    }
+
+    private ViewHolder createViewHolder(View v) {
+        ViewHolder holder = new ViewHolder();
+        holder.txtMessage = (TextView) v.findViewById(R.id.txtMessage);
+        holder.content = (LinearLayout) v.findViewById(R.id.content);
+        holder.contentWithBG = (LinearLayout) v.findViewById(R.id.contentWithBackground);
+        holder.txtInfo = (TextView) v.findViewById(R.id.txtInfo);
+        return holder;
+    }
+
+    private static class ViewHolder {
+        public TextView txtMessage;
+        public TextView txtInfo;
+        public LinearLayout content;
+        public LinearLayout contentWithBG;
+    }
+}

Android/app/src/main/java/com/thesis/smukov/anative/Chat/ChatMessage.java

@@ -0,0 +1,46 @@
+package com.thesis.smukov.anative.Chat;
+
+/**
+ * Created by smuko on 26-Jun-16.
+ */
+public class ChatMessage {
+    private long id;
+    private boolean isMe;
+    private String message;
+    private Long userId;
+    private String dateTime;
+
+    public long getId() {
+        return id;
+    }
+    public void setId(long id) {
+        this.id = id;
+    }
+    public boolean getIsme() {
+        return isMe;
+    }
+    public void setMe(boolean isMe) {
+        this.isMe = isMe;
+    }
+    public String getMessage() {
+        return message;
+    }
+    public void setMessage(String message) {
+        this.message = message;
+    }
+    public long getUserId() {
+        return userId;
+    }
+
+    public void setUserId(long userId) {
+        this.userId = userId;
+    }
+
+    public String getDate() {
+        return dateTime;
+    }
+
+    public void setDate(String dateTime) {
+        this.dateTime = dateTime;
+    }
+}

Android/app/src/main/java/com/thesis/smukov/anative/ChatActivity.java

@@ -0,0 +1,102 @@
+package com.thesis.smukov.anative;
+
+import android.os.Bundle;
+import android.support.v7.app.ActionBarActivity;
+import android.text.TextUtils;
+import android.view.View;
+import android.widget.Button;
+import android.widget.EditText;
+import android.widget.ListView;
+import android.widget.RelativeLayout;
+import android.widget.TextView;
+
+import com.thesis.smukov.anative.Chat.ChatAdapter;
+import com.thesis.smukov.anative.Chat.ChatMessage;
+
+import java.text.DateFormat;
+import java.util.ArrayList;
+import java.util.Date;
+
+public class ChatActivity extends ActionBarActivity {
+
+    private EditText messageET;
+    private ListView messagesContainer;
+    private Button sendBtn;
+    private ChatAdapter adapter;
+    private ArrayList<ChatMessage> chatHistory;
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.activity_chat);
+        initControls();
+    }
+
+    private void initControls() {
+        messagesContainer = (ListView) findViewById(R.id.messagesContainer);
+        messageET = (EditText) findViewById(R.id.messageEdit);
+        sendBtn = (Button) findViewById(R.id.chatSendButton);
+
+        TextView meLabel = (TextView) findViewById(R.id.meLbl);
+        TextView companionLabel = (TextView) findViewById(R.id.friendLabel);
+        RelativeLayout container = (RelativeLayout) findViewById(R.id.container);
+        companionLabel.setText("My Buddy");// Hard Coded
+        loadDummyHistory();
+
+        sendBtn.setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View v) {
+                String messageText = messageET.getText().toString();
+                if (TextUtils.isEmpty(messageText)) {
+                    return;
+                }
+
+                ChatMessage chatMessage = new ChatMessage();
+                chatMessage.setId(122);//dummy
+                chatMessage.setMessage(messageText);
+                chatMessage.setDate(DateFormat.getDateTimeInstance().format(new Date()));
+                chatMessage.setMe(true);
+
+                messageET.setText("");
+
+                displayMessage(chatMessage);
+            }
+        });
+    }
+
+    public void displayMessage(ChatMessage message) {
+        adapter.add(message);
+        adapter.notifyDataSetChanged();
+        scroll();
+    }
+
+    private void scroll() {
+        messagesContainer.setSelection(messagesContainer.getCount() - 1);
+    }
+
+    private void loadDummyHistory(){
+
+        chatHistory = new ArrayList<ChatMessage>();
+
+        ChatMessage msg = new ChatMessage();
+        msg.setId(1);
+        msg.setMe(false);
+        msg.setMessage("Hi");
+        msg.setDate(DateFormat.getDateTimeInstance().format(new Date()));
+        chatHistory.add(msg);
+        ChatMessage msg1 = new ChatMessage();
+        msg1.setId(2);
+        msg1.setMe(false);
+        msg1.setMessage("How r u doing???");
+        msg1.setDate(DateFormat.getDateTimeInstance().format(new Date()));
+        chatHistory.add(msg1);
+
+        adapter = new ChatAdapter(ChatActivity.this, new ArrayList<ChatMessage>());
+        messagesContainer.setAdapter(adapter);
+
+        for(int i=0; i<chatHistory.size(); i++) {
+            ChatMessage message = chatHistory.get(i);
+            displayMessage(message);
+        }
+    }
+}

Android/app/src/main/java/com/thesis/smukov/anative/NavigationFragment/ContactFragment.java

@@ -1,5 +1,6 @@
 package com.thesis.smukov.anative.NavigationFragment;
 
+import android.content.Intent;
 import android.os.Bundle;
 import android.support.annotation.Nullable;
 import android.support.design.widget.FloatingActionButton;
@@ -10,6 +11,8 @@
 import android.view.ViewGroup;
 import android.widget.TextView;
 
+import com.thesis.smukov.anative.ChatActivity;
+import com.thesis.smukov.anative.NavigationActivity;
 import com.thesis.smukov.anative.R;
 
 /**
@@ -47,8 +50,8 @@ protected void prepareFloatingActionButton(){
         fab.setOnClickListener(new View.OnClickListener() {
             @Override
             public void onClick(View view) {
-                Snackbar.make(view, "Called from Contact Fragment", Snackbar.LENGTH_LONG)
-                        .setAction("Action", null).show();
+                Intent intent = new Intent(getActivity(), ChatActivity.class);
+                startActivity(intent);
             }
         });
     }