title: android socket exception permission denied
body: <p>I am trying to follow this code example here: <a href="http://simena86.github.io/blog/2013/04/30/logging-accelerometer-from-android-to-pc/" rel="nofollow">http://simena86.github.io/blog/2013/04/30/logging-accelerometer-from-android-to-pc/</a></p>
  
  <p>I am getting a socket error: Permission denied exception though.</p>
  
  <p>Here is my Manifests file:</p>
  
  <pre><code> &lt;?xml version="1.0" encoding="utf-8"?&gt;
      &lt;manifest xmlns:android="http://schemas.android.com/apk/res/android"
          package="com.example.accelerometerlogger"
          android:versionCode="1"
          android:versionName="1.0" &gt;
  
          &lt;uses-sdk
          android:minSdkVersion="8"
          android:targetSdkVersion="21" /&gt;
  
      &lt;uses-permission android:name="android.permission.INTERNET"/&gt;
      &lt;uses-permission android:name="android.permission.ACCESS_NETWORK_STATE"/&gt;
      &lt;uses-permission android:name="android.permission.ACCESS_WIFI_STATE"/&gt;
  
      &lt;application
          android:allowBackup="true"
          android:icon="@drawable/ic_launcher"
          android:label="@string/app_name"
          android:theme="@style/AppTheme" &gt;
          &lt;activity
              android:name=".MainActivity"
              android:label="@string/app_name" &gt;
              &lt;intent-filter&gt;
                  &lt;action android:name="android.intent.action.MAIN" /&gt;
  
                  &lt;category android:name="android.intent.category.LAUNCHER" /&gt;
              &lt;/intent-filter&gt;
          &lt;/activity&gt;
      &lt;/application&gt;
  
  &lt;/manifest&gt;
  </code></pre>
  
  <p>Relevant part of the tutorial:</p>
  
  <pre><code>package noe.rart;
  
  import java.io.BufferedWriter;
  import java.io.OutputStreamWriter;
  import java.io.PrintWriter;
  import java.net.InetAddress;
  import java.net.Socket;
  
  import android.app.Activity;
  import android.content.Context;
  import android.hardware.Sensor;
  import android.hardware.SensorEvent;
  import android.hardware.SensorEventListener;
  import android.hardware.SensorManager;
  import android.os.Bundle;
  import android.view.View;
  import android.widget.Button;
  import android.widget.EditText;
  import android.widget.TextView;
  
  public class Socket_test2Activity extends Activity {
  
      public int PORT = 15000;
      private Button connectPhones;
      private String serverIpAddress = "10.0.0.5";
      private boolean connected = false;
      TextView text;
      EditText port;
      EditText ipAdr;
      private float x,y,z;
      private SensorManager sensorManager;
      private Sensor sensor;
      boolean acc_disp = false;
      boolean isStreaming = false;
      PrintWriter out;
  
      @Override
      protected void onCreate(Bundle savedInstanceState) {
          super.onCreate(savedInstanceState);
          setContentView(R.layout.main);
          connectPhones = (Button)findViewById(R.id.send);
          connectPhones.setOnClickListener(connectListener);
          text=(TextView)findViewById(R.id.textin);
          port=(EditText)findViewById(R.id.port);
          ipAdr=(EditText)findViewById(R.id.ipadr);
          text.setText("Press send to stream acceleration measurement");
          sensorManager = (SensorManager) getSystemService(Context.SENSOR_SERVICE);
          sensor = sensorManager.getSensorList(Sensor.TYPE_ACCELEROMETER).get(0);
          port.setText("15000");
          ipAdr.setText(serverIpAddress);
          acc_disp =false;
      }
  
      private Button.OnClickListener connectListener = new Button.OnClickListener() {
          @Override
          public void onClick(View v) {
              if (!connected) {
                  if (!serverIpAddress.equals("")) {
                      connectPhones.setText("Stop Streaming");
                      Thread cThread = new Thread(new ClientThread());
                      cThread.start();
                  }
              }
              else{
                  connectPhones.setText("Start Streaming");
                  connected=false;
                  acc_disp=false;
              }
          }
      };
  
      public class ClientThread implements Runnable {
          Socket socket;
          public void run() {
              try {
                  acc_disp=true;
                  PORT = Integer.parseInt(port.getText().toString());
                  serverIpAddress=ipAdr.getText().toString();
                  InetAddress serverAddr = InetAddress.getByName(serverIpAddress);
                  //InetAddress serverAddr = InetAddress.getByName("TURBOBEAVER");
                  socket = new Socket(serverAddr, PORT);
                  connected = true;
                  out = new PrintWriter(new BufferedWriter(new OutputStreamWriter(socket.getOutputStream())), true);
                  while (connected) {
                      out.printf("%10.2f\n", x);
                      out.flush();
                      Thread.sleep(2);
                  }
              }
              catch (Exception e) {
  
              }
              finally{
                  try{
                      acc_disp=false;
                      connected=false;
                      connectPhones.setText("Start Streaming");
                      //out.close();
                      socket.close();
                  }catch(Exception a){
                  }
              }
          }
      };
  
     private void init_perif(){
          // smthing      
      }
  
      @Override
      protected void onResume() {
          super.onResume();
          sensorManager.registerListener(accelerationListener, sensor,
          SensorManager.SENSOR_DELAY_FASTEST);
      }
  
      @Override
      protected void onStop() {
          sensorManager.unregisterListener(accelerationListener);
          super.onStop();
      }
  
      private SensorEventListener accelerationListener = new SensorEventListener() {
  
          @Override
          public void onAccuracyChanged(Sensor sensor, int acc) {
          }
          @Override
          public void onSensorChanged(SensorEvent event) {
              x = event.values[0];
              y = event.values[1];
              z = event.values[2];
              refreshDisplay();
          }
      };
  
      private void refreshDisplay() {
          if(acc_disp == true){
              String output = String.format("X:%3.2f m/s^2  |  Y:%3.2f m/s^2  |   Z:%3.2f m/s^2", x, y, z);
              text.setText(output);
          }
      }
  }
  </code></pre>
  
  <p>and logcat:</p>
  
  <pre><code>11-10 01:44:07.125  31884-31884/com.example.accelerometerlogger E/Zygote﹕ MountEmulatedStorage()
  11-10 01:44:07.125  31884-31884/com.example.accelerometerlogger E/Zygote﹕ v2
  11-10 01:44:07.125  31884-31884/com.example.accelerometerlogger I/libpersona﹕ KNOX_SDCARD checking this for 10353
  11-10 01:44:07.125  31884-31884/com.example.accelerometerlogger I/libpersona﹕ KNOX_SDCARD not a persona
  11-10 01:44:07.145  31884-31884/com.example.accelerometerlogger I/SELinux﹕ Function: selinux_compare_spd_ram, SPD-policy is existed. and_ver=SEPF_SM-G900V_5.0 ver=27
  11-10 01:44:07.145  31884-31884/com.example.accelerometerlogger I/SELinux﹕ Function: selinux_compare_spd_ram , priority [1] , priority version is VE=SEPF_SM-G900V_5.0_0027
  11-10 01:44:07.145  31884-31884/com.example.accelerometerlogger E/SELinux﹕ [DEBUG] get_category: variable seinfo: default sensitivity: NULL, cateogry: NULL
  11-10 01:44:07.145  31884-31884/com.example.accelerometerlogger I/art﹕ Late-enabling -Xcheck:jni
  11-10 01:44:07.175  31884-31884/com.example.accelerometerlogger D/TimaKeyStoreProvider﹕ TimaSignature is unavailable
  11-10 01:44:07.175  31884-31884/com.example.accelerometerlogger D/ActivityThread﹕ Added TimaKeyStore provider
  11-10 01:44:07.215  31884-31884/com.example.accelerometerlogger D/ResourcesManager﹕ creating new AssetManager and set to /data/app/com.example.accelerometerlogger-2/base.apk
  11-10 01:44:07.395  31884-31884/com.example.accelerometerlogger D/Activity﹕ performCreate Call secproduct feature valuefalse
  11-10 01:44:07.395  31884-31884/com.example.accelerometerlogger D/Activity﹕ performCreate Call debug elastic valuetrue
  11-10 01:44:07.415  31884-31884/com.example.accelerometerlogger D/SensorManager﹕ registerListener :: 0, MPU6500 Acceleration Sensor, 0, 0,
  11-10 01:44:07.445  31884-31921/com.example.accelerometerlogger D/OpenGLRenderer﹕ Render dirty regions requested: true
  11-10 01:44:07.565  31884-31921/com.example.accelerometerlogger I/Adreno-EGL﹕ &lt;qeglDrvAPI_eglInitialize:410&gt;: EGL 1.4 QUALCOMM build:  ()
      OpenGL ES Shader Compiler Version: E031.25.01.03
      Build Date: 03/03/15 Tue
      Local Branch: LA.BF.1.1_RB1_20150108_025_1077123_1158499
      Remote Branch:
      Local Patches:
      Reconstruct Branch:
  11-10 01:44:07.565  31884-31921/com.example.accelerometerlogger I/OpenGLRenderer﹕ Initialized EGL, version 1.4
  11-10 01:44:07.605  31884-31921/com.example.accelerometerlogger I/OpenGLRenderer﹕ HWUI protection enabled for context ,  &amp;this =0xb3a22088 ,&amp;mEglDisplay = 1 , &amp;mEglConfig = 8
  11-10 01:44:07.615  31884-31921/com.example.accelerometerlogger D/OpenGLRenderer﹕ Enabling debug mode 0
  11-10 01:44:07.755  31884-31884/com.example.accelerometerlogger I/Timeline﹕ Timeline: Activity_idle id: android.os.BinderProxy@d099f83 time:608961596
  11-10 01:44:18.875  31884-31884/com.example.accelerometerlogger D/ViewRootImpl﹕ ViewPostImeInputStage ACTION_DOWN
  11-10 01:44:19.055  31884-31884/com.example.accelerometerlogger I/System.out﹕ Starting Stream
  11-10 01:44:19.065  31884-32125/com.example.accelerometerlogger I/System.out﹕ Starting client thread
  11-10 01:44:19.075  31884-32125/com.example.accelerometerlogger W/System.err﹕ java.net.ConnectException: failed to connect to /98.157.211.152 (port 6881): connect failed: ECONNREFUSED (Connection refused)
  11-10 01:44:19.085  31884-32125/com.example.accelerometerlogger W/System.err﹕ at libcore.io.IoBridge.connect(IoBridge.java:124)
  11-10 01:44:19.085  31884-32125/com.example.accelerometerlogger W/System.err﹕ at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:183)
  11-10 01:44:19.085  31884-32125/com.example.accelerometerlogger W/System.err﹕ at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:163)
  11-10 01:44:19.085  31884-32125/com.example.accelerometerlogger W/System.err﹕ at java.net.Socket.startupSocket(Socket.java:590)
  11-10 01:44:19.085  31884-32125/com.example.accelerometerlogger W/System.err﹕ at java.net.Socket.&lt;init&gt;(Socket.java:226)
  11-10 01:44:19.085  31884-32125/com.example.accelerometerlogger W/System.err﹕ at com.example.accelerometerlogger.MainActivity$ClientThread.run(MainActivity.java:92)
  11-10 01:44:19.085  31884-32125/com.example.accelerometerlogger W/System.err﹕ at java.lang.Thread.run(Thread.java:818)
  11-10 01:44:19.085  31884-32125/com.example.accelerometerlogger W/System.err﹕ Caused by: android.system.ErrnoException: connect failed: ECONNREFUSED (Connection refused)
  11-10 01:44:19.085  31884-32125/com.example.accelerometerlogger W/System.err﹕ at libcore.io.Posix.connect(Native Method)
  11-10 01:44:19.085  31884-32125/com.example.accelerometerlogger W/System.err﹕ at libcore.io.BlockGuardOs.connect(BlockGuardOs.java:111)
  11-10 01:44:19.085  31884-32125/com.example.accelerometerlogger W/System.err﹕ at libcore.io.IoBridge.connectErrno(IoBridge.java:137)
  11-10 01:44:19.085  31884-32125/com.example.accelerometerlogger W/System.err﹕ at libcore.io.IoBridge.connect(IoBridge.java:122)
  11-10 01:44:19.085  31884-32125/com.example.accelerometerlogger W/System.err﹕ ... 6 more
  </code></pre>