title: App crashes when switching from main activity to a new activiy
body: <p>My app crashes when I use use a menu button to switch to a new page and call a new Activity. I have followed the tutorial from the android developer site which shows how to link button clicks to a new activity but when I click a button object the app crashes without changing to the new activity.</p>
  
  <p>I have six different activities linking from the main activity.</p>
  
  <p>My log cat is as follows:</p>
  
  <pre><code>03-05 20:12:10.185: W/ActivityManager(288): Activity pause timeout for ActivityRecord{40d31ab0 u0 com.example.g00290342bvarley/.MainActivity}
  03-05 20:12:10.394: E/SurfaceFlinger(36): ro.sf.lcd_density must be defined as a build property
  03-05 20:12:10.954: E/SurfaceFlinger(36): ro.sf.lcd_density must be defined as a build property
  03-05 20:12:11.065: W/EGL_emulation(863): eglSurfaceAttrib not implemented
  03-05 20:12:11.474: I/QSB.SuggestionsProviderImpl(863): chars:0,corpora:[web, apps, com.android.contacts/.activities.PeopleActivity]
  03-05 20:12:11.604: E/SurfaceFlinger(36): ro.sf.lcd_density must be defined as a build property
  03-05 20:12:11.744: W/EGL_emulation(449): eglSurfaceAttrib not implemented
  03-05 20:12:12.815: I/Choreographer(288): Skipped 32 frames!  The application may be doing too much work on its main thread.
  03-05 20:12:13.114: D/dalvikvm(863): GC_CONCURRENT freed 398K, 13% free 3825K/4348K, paused 11ms+154ms, total 867ms
  03-05 20:12:15.115: I/Process(1467): Sending signal. PID: 1467 SIG: 9
  03-05 20:12:15.285: I/WindowState(288): WIN DEATH: Window{40dbdb70 u0 com.example.g00290342bvarley/com.example.g00290342bvarley.MainActivity}
  03-05 20:12:15.297: I/ActivityManager(288): Process com.example.g00290342bvarley (pid 1467) has died.
  03-05 20:12:15.455: W/InputMethodManagerService(288): Got RemoteException sending setActive(false) notification to pid 1467 uid 10048
  03-05 20:12:36.119: D/ExchangeService(688): Received deviceId from Email app: null
  03-05 20:12:36.119: D/ExchangeService(688): !!! deviceId unknown; stopping self and retrying
  03-05 20:12:41.254: D/ExchangeService(688): !!! EAS ExchangeService, onCreate
  03-05 20:12:41.264: D/ExchangeService(688): !!! EAS ExchangeService, onStartCommand, startingUp = false, running = false
  03-05 20:12:41.284: W/ActivityManager(288): Unable to start service Intent { act=com.android.email.ACCOUNT_INTENT } U=0: not found
  03-05 20:12:41.294: D/ExchangeService(688): !!! Email application not found; stopping self
  03-05 20:12:41.304: D/ExchangeService(688): !!! EAS ExchangeService, onStartCommand, startingUp = true, running = false
  03-05 20:12:41.334: W/ActivityManager(288): Unable to start service Intent { act=com.android.email.ACCOUNT_INTENT } U=0: not found
  03-05 20:12:41.354: E/ActivityThread(688): Service com.android.exchange.ExchangeService has leaked ServiceConnection com.android.emailcommon.service.ServiceProxy$ProxyConnection@40d06b20 that was originally bound here
  </code></pre>
  
  <p><code>MainActivity</code> where button methods located:</p>
  
  <pre><code>import android.app.Activity;
  import android.content.Intent;
  import android.os.Bundle;
  import android.view.Menu;
  import android.view.View;
  import android.widget.EditText;
  
  public class MainActivity extends Activity {
  
      @Override
      protected void onCreate(Bundle savedInstanceState) {
          super.onCreate(savedInstanceState);
          setContentView(R.layout.activity_main);
      }
  
  
      @Override
      public boolean onCreateOptionsMenu(Menu menu) {
          // Inflate the menu; this adds items to the action bar if it is present.
          getMenuInflater().inflate(R.menu.main, menu);
          return true;
      }
  
      //methods for button clicks
  
      public void aboutMeth(View view) {
          // Do something in response to button
          Intent intent = new Intent(this, AboutGmit.class);
          EditText editText = (EditText) findViewById(R.id.about);
          startActivity(intent);
  
      }
  
      public void mapMeth(View view) {
          // Do something in response to button
          Intent intent = new Intent(this, MapGmit.class);
          EditText editText = (EditText) findViewById(R.id.map);
          startActivity(intent);
      }
  
      public void courseMeth(View view) {
          // Do something in response to button
          Intent intent = new Intent(this, CourseInfo.class);
          EditText editText = (EditText) findViewById(R.id.courseInfo);
          startActivity(intent);
      }
  
      public void lifeMeth(View view) {
          // Do something in response to button
          Intent intent = new Intent(this, StudentLife.class);
          EditText editText = (EditText) findViewById(R.id.studLife);
          startActivity(intent);
      }
  
  
      public void portalMeth(View view) {
          // Do something in response to button
          Intent intent = new Intent(this, StudentPortal.class);
          EditText editText = (EditText) findViewById(R.id.studPortal);
          startActivity(intent);
      }
  
      public void contactMeth(View view) {
          // Do something in response to button
          Intent intent = new Intent(this, ContactInfo.class);
          EditText editText = (EditText) findViewById(R.id.contact);
          startActivity(intent);
      }
  
  }
  </code></pre>
  
  <p>The new activity called <code>ContactInfo.java</code></p>
  
  <pre><code>import android.os.Bundle;
  import android.app.Activity;
  import android.view.Menu;
  
  public class ContactInfo extends Activity {
  
      @Override
      protected void onCreate(Bundle savedInstanceState) {
          super.onCreate(savedInstanceState);
          setContentView(R.layout.activity_contact_info);
      }
  
      @Override
      public boolean onCreateOptionsMenu(Menu menu) {
          // Inflate the menu; this adds items to the action bar if it is present.
          getMenuInflater().inflate(R.menu.contact_info, menu);
          return true;
      }
  
  }
  </code></pre>
  
  <p>The manifest file where I have added the activity element.</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.g00290342bvarley"
      android:versionCode="1"
      android:versionName="1.0" &gt;
  
      &lt;uses-sdk
          android:minSdkVersion="8"
          android:targetSdkVersion="17" /&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="com.example.g00290342bvarley.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;activity
              android:name="com.example.g00290342bvarley.AboutGmit"
              android:label="@string/title_activity_about_gmit" 
               android:parentActivityName="com.example.g00290342bvarley.MainActivity"
              &gt;
          &lt;/activity&gt;
          &lt;activity
              android:name="com.example.g00290342bvarley.MapGmit"
              android:label="@string/title_activity_map_gmit"
               android:parentActivityName="com.example.g00290342bvarley.MainActivity"
              &gt;
          &lt;/activity&gt;
          &lt;activity
              android:name="com.example.g00290342bvarley.CourseInfo"
              android:label="@string/title_activity_course_info" 
               android:parentActivityName="com.example.g00290342bvarley.MainActivity"
              &gt;
          &lt;/activity&gt;
          &lt;activity
              android:name="com.example.g00290342bvarley.StudentLife"
              android:label="@string/title_activity_student_life" 
               android:parentActivityName="com.example.g00290342bvarley.MainActivity"
              &gt;
          &lt;/activity&gt;
          &lt;activity
              android:name="com.example.g00290342bvarley.StudentPortal"
              android:label="@string/title_activity_student_portal" 
              android:parentActivityName="com.example.g00290342bvarley.MainActivity"
              &gt;
          &lt;meta-data
              android:name="android.support.PARENT_ACTIVITY"
              android:value="com.example.g00290342bvarley.MainActivity" /&gt;
          &lt;/activity&gt;
          &lt;activity
              android:name="com.example.g00290342bvarley.ContactInfo"
              android:label="@string/title_activity_contact_info" 
               android:parentActivityName="com.example.g00290342bvarley.MainActivity"
              &gt;
          &lt;/activity&gt;
      &lt;/application&gt;
  
  &lt;/manifest&gt;
  </code></pre>
  
  <p>Button layout in activity_main.xml</p>
  
  <pre><code>&lt;LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
      xmlns:tools="http://schemas.android.com/tools"
      android:id="@+id/LinearLayout2"
      android:layout_width="match_parent"
      android:layout_height="match_parent"
      android:orientation="vertical"
      android:paddingBottom="@dimen/activity_vertical_margin"
      android:paddingLeft="@dimen/activity_horizontal_margin"
      android:paddingRight="@dimen/activity_horizontal_margin"
      android:paddingTop="@dimen/activity_vertical_margin"
      tools:context=".MainActivity" &gt;
  
      &lt;Button
          android:id="@+id/about"
          style="?android:attr/buttonStyleSmall"
          android:layout_width="wrap_content"
          android:layout_height="0dp"
          android:layout_weight="1"
          android:onClick="aboutMeth"
          android:hint="Details about GMIT"
          android:text="@string/about" /&gt;
  
      &lt;Button
          android:id="@+id/map"
          style="?android:attr/buttonStyleSmall"
          android:layout_width="95dp"
          android:layout_height="0dp"
          android:layout_weight="1"
          android:onClick="mapMeth"
          android:hint="Location of GMIT on google maps"
          android:text="@string/map" /&gt;
  
      &lt;Button
          android:id="@+id/courseInfo"
          style="?android:attr/buttonStyleSmall"
          android:layout_width="wrap_content"
          android:layout_height="0dp"
          android:layout_weight="1"
          android:onClick="courseMeth"
          android:hint="Info about courses offered by GMIT"
          android:text="@string/courseInfo" /&gt;
  
      &lt;Button
          android:id="@+id/studLife"
          style="?android:attr/buttonStyleSmall"
          android:layout_width="98dp"
          android:layout_height="0dp"
          android:layout_weight="1"
          android:hint="Gallery"
          android:onClick="lifeMeth"
          android:text="@string/studLife" /&gt;
  
      &lt;Button
          android:id="@+id/studPortal"
          style="?android:attr/buttonStyleSmall"
          android:layout_width="93dp"
          android:layout_height="0dp"
          android:layout_weight="1"
          android:onClick="portalMeth"
          android:hint="The Student Portal!"
          android:text="@string/studPortal" /&gt;
  
      &lt;Button
          android:id="@+id/contact"
          style="?android:attr/buttonStyleSmall"
          android:layout_width="wrap_content"
          android:layout_height="0dp"
          android:layout_weight="1"
          android:onClick="contactMeth"
          android:hint="GMIT contact info"
          android:text="@string/contact" /&gt;
  
  &lt;/LinearLayout&gt;
  </code></pre>