Second Commit: Established a TCP connection with my linux device. The…

… connection is working but can't still send a message to the computer. New activities that have been added include realtimeActivity and playlistActivity.

Signed-off-by: Dancan <dancangwe@gmail.com>

app/src/main/AndroidManifest.xml

@@ -2,6 +2,9 @@
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
     package="com.example.dancan.serverclienttester">
 
+    <uses-permission android:name="android.permission.INTERNET" />
+    <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
+
     <application
         android:allowBackup="true"
         android:icon="@mipmap/ic_launcher"
@@ -14,12 +17,15 @@
             android:theme="@style/AppTheme">
             <intent-filter>
                 <action android:name="android.intent.action.MAIN" />
+
                 <category android:name="android.intent.category.LAUNCHER" />
             </intent-filter>
         </activity>
         <activity android:name=".ServerActivity" />
         <activity android:name=".ClientActivity" />
-        <activity android:name=".ComposeActivity"></activity>
+        <activity android:name=".ComposeActivity" />
+        <activity android:name=".PlaylistActivity" />
+        <activity android:name=".RealtimeActivity"></activity>
     </application>
 
 </manifest>

app/src/main/java/com/example/dancan/serverclienttester/MainActivity.java

@@ -4,16 +4,41 @@
 import android.os.Bundle;
 import android.support.v7.app.AppCompatActivity;
 import android.view.View;
+import android.widget.Button;
 
 public class MainActivity extends AppCompatActivity {
-    public static final String EXTRA_MESSAGE = "com.example.dancan.serverclienttester.MESSAGE";
 
     @Override
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
         setContentView(R.layout.activity_main);
-        Intent intent = getIntent();
-        String message = intent.getStringExtra(MainActivity.EXTRA_MESSAGE);
+        Button buttonPlaylist = findViewById(R.id.playlist);
+        Button buttonCompose = findViewById(R.id.compose);
+        Button buttonRealTime = findViewById(R.id.realButton);
+        buttonPlaylist.setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View view) {
+                Intent intent = new Intent(MainActivity.this, PlaylistActivity.class);
+                startActivity(intent);
+            }
+        });
+        buttonCompose.setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View view) {
+                Intent intent = new Intent(MainActivity.this, ComposeActivity.class);
+                startActivity(intent);
+            }
+        });
+        buttonRealTime.setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View view) {
+                Intent intent = new Intent(MainActivity.this, RealtimeActivity.class);
+                startActivity(intent);
+            }
+        });
+
+
+
     }
 
     /**

app/src/main/java/com/example/dancan/serverclienttester/PlaylistActivity.java

@@ -0,0 +1,13 @@
+package com.example.dancan.serverclienttester;
+
+import android.os.Bundle;
+import android.support.v7.app.AppCompatActivity;
+
+public class PlaylistActivity extends AppCompatActivity {
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.activity_playlist);
+    }
+}

app/src/main/java/com/example/dancan/serverclienttester/RealtimeActivity.java

@@ -0,0 +1,54 @@
+package com.example.dancan.serverclienttester;
+
+import android.os.Bundle;
+import android.os.StrictMode;
+import android.support.v7.app.AppCompatActivity;
+import android.util.Log;
+import android.view.View;
+import android.widget.Button;
+import android.widget.TextView;
+
+import java.io.IOException;
+import java.io.OutputStream;
+import java.io.PrintWriter;
+import java.net.Socket;
+import java.net.UnknownHostException;
+
+public class RealtimeActivity extends AppCompatActivity {
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.activity_realtime);
+
+        final TextView tView = findViewById(R.id.textView);
+        final Button button = findViewById(R.id.buttonSend);
+        //To ensure better performance this line must be removed
+        StrictMode.ThreadPolicy policy = new StrictMode.ThreadPolicy.Builder().permitAll().build();
+        StrictMode.setThreadPolicy(policy);
+
+        button.setOnClickListener(new View.OnClickListener() {
+            public void onClick(View v) {
+                try {
+                    Log.v("Tcp", "Clicked the button");
+                    Socket s = new Socket("197.239.161.75", 4447);
+                    Log.v("Tcp", "Got the Socket and host address");
+                    OutputStream out = s.getOutputStream();
+                    PrintWriter output = new PrintWriter(out);
+                    output.println("Hello Mr Pi!!");
+                    out.close();
+
+                } catch (UnknownHostException e) {
+                    tView.setText(e.toString());
+                    Log.v("Tcp", e.toString());
+                } catch (IOException e) {
+                    tView.setText(e.toString());
+                    Log.v("Tcp", e.toString());
+                } catch (Exception e) {
+                    tView.setText(e.toString());
+
+                }
+            }
+        });
+    }
+}

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

@@ -0,0 +1,41 @@
+<?xml version="1.0" encoding="utf-8"?>
+<LinearLayout 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"
+    android:orientation="vertical"
+    tools:context=".PlaylistActivity">
+
+    <TextView
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:layout_margin="8dp"
+        android:text="@string/playlist"
+        android:textColor="@color/colorPrimary"
+        android:textSize="30sp" />
+
+    <LinearLayout
+        android:layout_width="match_parent"
+        android:layout_height="0dp"
+        android:layout_weight="2"
+        android:orientation="vertical">
+
+        <ListView
+            android:id="@+id/playlist"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content" />
+    </LinearLayout>
+
+    <!--<RelativeLayout-->
+    <!--android:layout_width="match_parent"-->
+    <!--android:layout_height="0dp"-->
+    <!--android:layout_weight="1">-->
+    <!--<TextView-->
+    <!--android:layout_width="wrap_content"-->
+    <!--android:layout_height="wrap_content" -->
+    <!--android:id="@+id/playingTune"-->
+    <!--android:background="@color/colorBrown"/>-->
+    <!---->
+    <!--</RelativeLayout>-->
+
+</LinearLayout>

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

@@ -0,0 +1,23 @@
+<?xml version="1.0" encoding="utf-8"?>
+<LinearLayout 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"
+    android:orientation="vertical"
+    tools:context=".RealtimeActivity">
+
+    <TextView
+        android:id="@+id/textView"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:textColor="@color/colorPrimaryDark" />
+
+    <Button
+        android:id="@+id/buttonSend"
+        android:layout_width="50dp"
+        android:layout_height="50dp"
+        android:layout_gravity="center"
+        android:layout_margin="8dp"
+        android:background="@drawable/music" />
+
+</LinearLayout>