title: has no default constructor in manifest
body: <p>I start having this error when I made an Intent trying to pass a string from ActMain to SoundClsRslt, by adding "extend Activity" in SoundClsRslt and declaration in the manifest.</p>
  
  <p>My app keep crashing and it says:</p>
  
  <pre><code>java.lang.RuntimeException: Unable to start activity ComponentInfo{com.Hugler/com.Hugler.ActMain}: 
  android.content.ActivityNotFoundException: Unable to find explicit activity class {/com.Hugler.CB.SoundClsRslt}; 
  have you declared this activity in your AndroidManifest.xml?
  </code></pre>
  
  <p>I have declared the activity in my android manifest file, but there's an error saying "'com.Hugler.CB.SoundClsRslt' has no default constructor "</p>
  
  <pre><code>&lt;uses-feature android:name="android.hardware.usb." /&gt;
  &lt;uses-permission android:name="android.permission.RECORD_AUDIO"/&gt;
  &lt;uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/&gt;
  &lt;uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" /&gt;
  &lt;uses-permission android:name="android.permission.INTERNET" /&gt;
  &lt;uses-permission android:name="android.permission.SEND_SMS"&gt;&lt;/uses-permission&gt;
  &lt;uses-permission android:name="android.permission.RECEIVE_SMS"&gt;&lt;/uses-permission&gt;
  
  &lt;application
      android:allowBackup="true"
      android:icon="@drawable/ic_launcher"
      android:label="@string/Hugler"
      android:theme="@android:style/Theme.Light.NoTitleBar.Fullscreen" &gt;
      &lt;activity
          android:name="com.Hugler.ActMain"
          android:label="@string/Hugler" &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;activity android:name="com.Hugler.CB.SoundClsRslt" /&gt;
  &lt;/application&gt;
  </code></pre>
  
  <p></p>
  
  <p>Here is my code for SoundClsRslt:</p>
  
  <pre><code>    package com.Hugler.CB;
  
  import java.io.File;
  import java.io.FileOutputStream;
  import java.io.IOException;
  import java.nio.ByteBuffer;
  import java.nio.ByteOrder;
  import java.nio.ShortBuffer;
  import java.nio.channels.FileChannel;
  import java.text.SimpleDateFormat;
  import java.util.Date;
  import java.util.Locale;
  
  import com.Hugler.ActMain;
  import com.Hugler.TeleOp.TeleOp;
  import com.SoundClassification.SoundClassification.ISC;
  
  import android.app.Activity;
  import android.content.Intent;
  import android.os.Environment;
  import android.telephony.SmsManager;
  
  public class SoundClsRslt extends Activity implements ISC {
  
      public static int interact;
  
      private ActMain m_pMain;
      private static int m_iID;
      private static int m_iID1;
      private FileOutputStream _fLog;
  
      public SoundClsRslt(ActMain pMain) {
          m_pMain = pMain;
          m_iID = 0;
          m_iID1 = 0;
          _fLog = null;
      }
  
      public void StartLog(String sFile) {
          if (_fLog != null)
              return;
          try {
              _fLog = new FileOutputStream(sFile);
              String sHdr = "Time,Event,Confidence\n";
              _fLog.write(sHdr.getBytes());
          } catch (Exception e) {
              e.printStackTrace();
          }
      }
  
      public void OnLog(String sLog) {
      }
  
      public void OnLog2(String sLog) {
      }
  
      public void OnSegment(double[] pBuf, int iLen, String sCls, double dConf) {
          sCls = sCls.toLowerCase(Locale.getDefault());
          {
              if (sCls.contains("glass")) {
  
                  m_iID1++;
                  m_pMain.Show2(m_iID1 + "." + sCls);
                  m_pMain.Show3("" + dConf);
  
                  //convert short to byte
                  ByteBuffer myByteBuffer = ByteBuffer.allocate(iLen * 2);
                  myByteBuffer.order(ByteOrder.LITTLE_ENDIAN);
  
                  //open pcm
                  ShortBuffer myShortBuffer = myByteBuffer.asShortBuffer();
                  for (int i = 0; i &lt; iLen ; i++) {
                      myShortBuffer.put((short)(pBuf[i]));
                  }
                  File file;
  
                  FileChannel out = null;
  
                  try {
                      String filepath = Environment.getExternalStorageDirectory().getPath();
                      SimpleDateFormat pSDF = new SimpleDateFormat("yyyyMMdd_HH_mm_ss", Locale.UK);
                      String sNow = pSDF.format(new Date());
                      file = new File(filepath,"AudioRecorder" + "/segment_" + sNow + ".pcm");
  
                      Intent intent = getIntent();
  
                      SimpleDateFormat smsdate = new SimpleDateFormat("yyyy/MM/dd_HH:mm:ss", Locale.US);
                      String messageToSend = "Glass breaking sound detected at "+ smsdate.format(new Date()) + " (yyyy/MM/dd_HH:mm:ss)";
                      String number = intent.getExtras().getString("numberfrom");
                      SmsManager.getDefault().sendTextMessage(number, null, messageToSend, null, null);
  
                      // if file doesnt exists, then create it
                      if (!file.exists()) {
                          file.createNewFile();
                      }
                      out = new FileOutputStream(file).getChannel();
  
                      //write to pcm
                      out.write(myByteBuffer);
                      //close pcm
                      out.close();
                  } catch (IOException e) {
              e.printStackTrace();
                  } finally {
                      try {
                          if (out != null) {
                              out.close();
                          }
                      } catch (IOException e) {
                          e.printStackTrace();
                      }
                  }
  
              } else {
              m_iID++;
              m_pMain.Show0(m_iID + "." + sCls);
                  m_pMain.Show1("" + dConf);
              }
          }
          TeleOp.SendInteraction();
  
          if (_fLog != null) {
              SimpleDateFormat pSDF = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss", Locale.US);
              String sNow = pSDF.format(new Date());
              String sLog = sNow + "," + sCls + "," + dConf + "\n";
              try {
                  _fLog.write(sLog.getBytes());
              } catch (IOException e) {
                  e.printStackTrace();
              }
          }
      }
  }
  </code></pre>
  
  <p>How and where do I add an empty constructor? Thanks in advance! :)</p>
  
  <p>Extras. My ActMain code:</p>
  
  <pre><code>    package com.Hugler;
  
  import java.text.SimpleDateFormat;
  import java.util.Date;
  import java.util.Locale;
  
  import com.Audio.CAudio;
  import com.Hugler.ADK.ADK;
  import com.Hugler.CB.SoundClsRslt;
  import com.Hugler.Lib.Cfg;
  import com.Hugler.Lib.MyDebug;
  import com.Hugler.Network.Server;
  import com.Hugler.Network.StreamingServer;
  
  import android.content.Context;
  import android.content.Intent;
  import android.os.Bundle;
  import android.app.Activity;
  import android.app.AlertDialog;
  import android.content.DialogInterface;
  import android.telephony.SmsManager;
  import android.view.LayoutInflater;
  import android.view.View;
  import android.widget.Button;
  import android.widget.EditText;
  import android.widget.TextView;
  import android.widget.Toast;
  
  import com.Hugler.Personality.Personality;
  import com.Hugler.Personality.Miti.PerMiti;
  import com.Hugler.TeleOp.TeleOp;
  import com.Motor.Motor;
  import com.TTS.PCMPlayback;
  
  public class ActMain extends Activity implements ADK.IADK {
      private TextView m_pTxtRslt;
      private TextView m_pTxtRslt1;
  
      private TextView m_pTxtview;
      private TextView m_pTxtview1;
  
      public static Button m_pBtnHeadToggle;
      public static Button m_pBtnEarToggle;
  
      private SoundClsRslt m_pSoundClsRslt;
      private static ActMain _p;
  
      public static int level;
  
      final Intent i = new Intent(this, SoundClsRslt.class);
      final Context context = this;
      private TextView result;
  
      protected void onCreate(Bundle savedInstanceState) {
          super.onCreate(savedInstanceState);
  
  
  
          _p = this;
  
          if (Cfg.Init()) {
              setContentView(R.layout.main);
  
              // get prompts.xml view
              LayoutInflater li = LayoutInflater.from(context);
              View promptsView = li.inflate(R.layout.prompts, null);
  
              AlertDialog.Builder alertDialogBuilder = new AlertDialog.Builder(
                      context);
  
              // set prompts.xml to alertdialog builder
              alertDialogBuilder.setView(promptsView);
  
              final EditText userInput = (EditText) promptsView
                      .findViewById(R.id.editTextDialogUserInput);
  
              // set dialog message
              alertDialogBuilder
                      .setCancelable(false)
                      .setPositiveButton("OK",
                              new DialogInterface.OnClickListener() {
                                  public void onClick(DialogInterface dialog, int id) {
                                      // get user input and set it to result
                                      // edit text
                                      result.setText(userInput.getText());
                                  }
  
                              })
                      .setNegativeButton("Cancel",
                              new DialogInterface.OnClickListener() {
                                  public void onClick(DialogInterface dialog, int id) {
                                      dialog.cancel();
                                  }
                              });
  
              // create alert dialog
              AlertDialog alertDialog = alertDialogBuilder.create();
  
              // show it
              alertDialog.show();
  
              result = (TextView) findViewById(R.id.editTextResult);
              result.setText(null);
  
              m_pTxtRslt = (TextView) findViewById(R.id.TxtRslt);
              m_pTxtRslt1 = (TextView) findViewById(R.id.TxtRslt1);
  
              m_pTxtview = (TextView) findViewById(R.id.textView2);
              m_pTxtview1 = (TextView) findViewById(R.id.textView3);
  
              MyDebug.Init(this, m_pTxtRslt);
  
              m_pTxtRslt.setText("Non-Glass");
              m_pTxtRslt1.setText(null);
  
              m_pTxtview.setText("Glass");
              m_pTxtview1.setText(null);
  
              m_pSoundClsRslt = new SoundClsRslt(this);
              SimpleDateFormat pSDF = new SimpleDateFormat("yyyyMMddHHmmss", Locale.US);
              String sNow = pSDF.format(new Date());
              m_pSoundClsRslt.StartLog(Cfg.GetLogDir() + "/" + sNow + ".csv");
  
              PCMPlayback.Init();
              Personality.Init(new PerMiti());
              TeleOp.Init(m_pSoundClsRslt);
  
              if (result != null){
  
                  String easyPuzzle  = result.getText().toString();
                  i.putExtra("numberfrom", easyPuzzle);
                  startActivity(i);
                  Toast.makeText(this, "msg msg", Toast.LENGTH_SHORT).show();
              } // passing the string
  
          } else {
              AlertDialog.Builder pDlg = new AlertDialog.Builder(this);
              pDlg.setTitle("Fail loading configuration");
              pDlg.setMessage(Cfg.ErrMsg());
              pDlg.setPositiveButton("Ok", new DialogInterface.OnClickListener() {
                  public void onClick(DialogInterface dialog, int whichButton) {
                      ActMain.this.finish();
                  }
              });
              pDlg.show();
          }
      }
  
      protected void onResume() {
          super.onResume();
          if (Cfg.ErrMsg() != null)
              return;
  
          Server.Init();
              CAudio.Init(m_pSoundClsRslt);
              CAudio.ResumeSoundCls();
  
          View decorView = getWindow().getDecorView();
  
          int uiOptions = View.SYSTEM_UI_FLAG_HIDE_NAVIGATION;
          decorView.setSystemUiVisibility(uiOptions);
      }
  
      public void Show0(final String sTxt) {
          runOnUiThread(new Runnable() {
              public void run() {
                  m_pTxtRslt.setText(sTxt);
              }
          });
      }
  
      public void Show1(final String sTxt) {
  
          runOnUiThread(new Runnable() {
              public void run() {
                  m_pTxtRslt1.setText(sTxt);
              }
          });
      }
  
      public void Show2(final String sTxt) {
          runOnUiThread(new Runnable() {
              public void run() {
                  m_pTxtview.setText(sTxt);
              }
          });
      }
  
      public void Show3(final String sTxt) {
          runOnUiThread(new Runnable() {
              public void run() {
                  m_pTxtview1.setText(sTxt);
              }
          });
      }
  
      public void OnADKStat(int iStat, String sMsg) {
  
          if (iStat == ADK.S_CONNECTED)
              Motor.Connect(ADK.GetInStream(), ADK.GetOutStream());
          else if (iStat == ADK.S_DISCONNECTED)
              runOnUiThread(new Runnable() {
                  public void run() {
                      Motor.Disconnect();
                      ActMain.this.finish();
                  }
              });
      }
  }
  </code></pre>