info page

DarkChatter/app/src/main/AndroidManifest.xml

@@ -2,6 +2,10 @@
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
     package="comdarkchatter.github.darkchatter">
 
+    <uses-permission
+        android:name="android.permission.INTERNET"
+        android:required="true" />
+
     <application
         android:allowBackup="true"
         android:icon="@mipmap/ic_launcher"
@@ -12,13 +16,26 @@
         <activity
             android:name=".GroupActivity"
             android:label="@string/app_name"
+            android:theme="@style/AppTheme.NoActionBar"></activity>
+        <activity
+            android:name=".ChatActivity"
+            android:label="@string/title_activity_chat"
+            android:parentActivityName=".GroupActivity"
             android:theme="@style/AppTheme.NoActionBar">
             <intent-filter>
                 <action android:name="android.intent.action.MAIN" />
 
                 <category android:name="android.intent.category.LAUNCHER" />
             </intent-filter>
+
+            <meta-data
+                android:name="android.support.PARENT_ACTIVITY"
+                android:value="comdarkchatter.github.darkchatter.GroupActivity" />
         </activity>
+        <activity
+            android:name=".InfoPage"
+            android:label="@string/title_activity_info_page"
+            android:theme="@style/AppTheme.NoActionBar"></activity>
     </application>
 
 </manifest>

DarkChatter/app/src/main/java/comdarkchatter/github/darkchatter/ChatActivity.java

@@ -0,0 +1,182 @@
+/*
+ * Copyright (C) 2012 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package comdarkchatter.github.darkchatter;
+
+import android.app.Activity;
+import android.content.Intent;
+import android.net.nsd.NsdServiceInfo;
+import android.os.Bundle;
+import android.os.Handler;
+import android.os.Message;
+import android.support.design.widget.FloatingActionButton;
+import android.util.Log;
+import android.view.View;
+import android.widget.Button;
+import android.widget.EditText;
+import android.widget.TextView;
+import android.support.design.widget.Snackbar;
+import comdarkchatter.github.darkchatter.NsdHelper;
+
+public class ChatActivity extends Activity {
+
+    NsdHelper mNsdHelper;
+
+    private TextView mStatusView;
+    private Handler mUpdateHandler;
+
+    public static final String TAG = "NsdChat";
+
+    ChatConnection mConnection;
+
+    /** Called when the activity is first created. */
+    @Override
+    public void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        Log.d(TAG, "Creating chat activity");
+        setContentView(R.layout.main);
+        mStatusView = (TextView) findViewById(R.id.status);
+
+        mUpdateHandler = new Handler() {
+            @Override
+            public void handleMessage(Message msg) {
+                String chatLine = msg.getData().getString("msg");
+                addChatLine(chatLine);
+            }
+        };
+
+    }
+
+    public void clickAdvertise(View v) {
+        // Register service
+        if(mConnection.getLocalPort() > -1) {
+            mNsdHelper.registerService(mConnection.getLocalPort());
+        } else {
+            //User-side warning when register fails
+            Snackbar registerError = Snackbar.make(v, "Unable to register!", Snackbar.LENGTH_SHORT);
+            registerError.show();
+            Log.d(TAG, "ServerSocket isn't bound.");
+        }
+    }
+
+    public void clickDiscover(View v) {
+        mNsdHelper.discoverServices();
+    }
+
+    public void clickConnect(View v) {
+        NsdServiceInfo service = mNsdHelper.getChosenServiceInfo();
+        if (service != null) {
+            Log.d(TAG, "Connecting.");
+            mConnection.connectToServer(service.getHost(),
+                    service.getPort());
+        } else {
+            //User-side warning when connect fails
+            Snackbar connectError = Snackbar.make(v, "Unable to connect! There is a problem with the service.", Snackbar.LENGTH_SHORT);
+            connectError.show();
+            Log.d(TAG, "No service to connect to!");
+        }
+    }
+
+    public void clickSend(View v) {
+        EditText messageView = (EditText) this.findViewById(R.id.chatInput);
+        if (messageView != null) {
+            String messageString = messageView.getText().toString();
+            if (!messageString.isEmpty()) {
+                boolean messageSent = mConnection.sendMessage(messageString);
+                if (!messageSent){
+                    //User-side warning when connect fails
+                    Snackbar messageSentError = Snackbar.make(v, "Message was not sent. There is a problem with the service.", Snackbar.LENGTH_SHORT);
+                    messageSentError.show();
+                }
+            }
+            messageView.setText("");
+        }
+    }
+
+    /** Called when the user taps the info button*/
+    public void infoPage(View v) {
+        Button info = (Button) findViewById(R.id.info);
+        info.setOnClickListener(new View.OnClickListener() {
+
+            @Override
+            public void onClick(View view) {
+                Intent infoPage = new Intent(ChatActivity.this, InfoPage.class);
+                //GroupActivity.this.startActivity(chat);
+                startActivity(infoPage);
+
+            }
+        });
+    }
+
+    public void addChatLine(String line) {
+        mStatusView.append("\n" + line);
+    }
+
+    @Override
+    protected void onStart() {
+        Log.d(TAG, "Starting.");
+        mConnection = new ChatConnection(mUpdateHandler);
+
+        mNsdHelper = new NsdHelper(this);
+        mNsdHelper.initializeNsd();
+        super.onStart();
+    }
+
+
+    @Override
+    protected void onPause() {
+        Log.d(TAG, "Pausing.");
+        if (mNsdHelper != null) {
+            mNsdHelper.stopDiscovery();
+        }
+        super.onPause();
+    }
+
+    @Override
+    protected void onResume() {
+        Log.d(TAG, "Resuming.");
+        super.onResume();
+        if (mNsdHelper != null) {
+            mNsdHelper.discoverServices();
+        }
+    }
+
+
+    // For KitKat and earlier releases, it is necessary to remove the
+    // service registration when the application is stopped.  There's
+    // no guarantee that the onDestroy() method will be called (we're
+    // killable after onStop() returns) and the NSD service won't remove
+    // the registration for us if we're killed.
+
+    // In L and later, NsdService will automatically unregister us when
+    // our connection goes away when we're killed, so this step is
+    // optional (but recommended).
+
+    @Override
+    protected void onStop() {
+        Log.d(TAG, "Being stopped.");
+        mNsdHelper.tearDown();
+        mConnection.tearDown();
+        mNsdHelper = null;
+        mConnection = null;
+        super.onStop();
+    }
+
+    @Override
+    protected void onDestroy() {
+        Log.d(TAG, "Being destroyed.");
+        super.onDestroy();
+    }
+}