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API Change Statistics
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        <td class="diffspec" style="padding-top:.25em">To Level:</td>
        <td class="diffvaluenew" style="padding-top:.25em">4</td>
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        <td class="diffspec">From Level:</td>
        <td class="diffvalueold">3</td>
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<h1>API&nbsp;Change&nbsp;Statistics</h1>
<p>The overall difference between API Levels 3 and 4 is approximately <span style="color:222;font-weight:bold;">2.45%</span>.
</p>
<br>
<a name="numbers"></a>
<h2>Total of Differences, by Number and Type</h2>
<p>
The table below lists the numbers of program elements (packages, classes, constructors, methods, and fields) that were added, changed, or removed. The table includes only the highest-level program elements &mdash; that is, if a class with two methods was added, the number of methods added does not include those two methods, but the number of classes added does include that class.
</p>
<TABLE summary="Number of differences" WIDTH="100%">
<TR>
  <th>Type</th>
  <TH ALIGN="center"><b>Additions</b></TH>
  <TH ALIGN="center"><b>Changes</b></TH>
  <TH ALIGN="center">Removals</TH>
  <TH ALIGN="center"><b>Total</b></TH>
</TR>
<TR>
  <TD>Packages</TD>
  <TD ALIGN="right">4</TD>
  <TD ALIGN="right">26</TD>
  <TD ALIGN="right">0</TD>
  <TD ALIGN="right">30</TD>
</TR>
<TR>
  <TD>Classes and <i>Interfaces</i></TD>
  <TD ALIGN="right">22</TD>
  <TD ALIGN="right">73</TD>
  <TD ALIGN="right">2</TD>
  <TD ALIGN="right">97</TD>
</TR>
<TR>
  <TD>Constructors</TD>
  <TD ALIGN="right">6</TD>
  <TD ALIGN="right">8</TD>
  <TD ALIGN="right">0</TD>
  <TD ALIGN="right">14</TD>
</TR>
<TR>
  <TD>Methods</TD>
  <TD ALIGN="right">80</TD>
  <TD ALIGN="right">43</TD>
  <TD ALIGN="right">3</TD>
  <TD ALIGN="right">126</TD>
</TR>
<TR>
  <TD>Fields</TD>
  <TD ALIGN="right">208</TD>
  <TD ALIGN="right">27</TD>
  <TD ALIGN="right">29</TD>
  <TD ALIGN="right">264</TD>
</TR>
<TR>
  <TD style="background-color:#FAFAFA"><b>Total</b></TD>
  <TD  style="background-color:#FAFAFA" ALIGN="right"><strong>320</strong></TD>
  <TD  style="background-color:#FAFAFA" ALIGN="right"><strong>177</strong></TD>
  <TD  style="background-color:#FAFAFA" ALIGN="right"><strong>34</strong></TD>
  <TD  style="background-color:#FAFAFA" ALIGN="right"><strong>531</strong></TD>
</TR>
</TABLE>
<br>
<a name="packages"></a>
<h2>Changed Packages, Sorted by Percentage Difference</h2>
<TABLE summary="Packages sorted by percentage difference" WIDTH="100%">
<TR>
  <TH  WIDTH="10%">Percentage Difference*</TH>
  <TH>Package</TH>
</TR>
<TR>
  <TD ALIGN="center">36</TD>
  <TD><A HREF="pkg_android.telephony.gsm.html">android.telephony.gsm</A></TD>
</TR>
<TR>
  <TD ALIGN="center">22</TD>
  <TD><A HREF="pkg_android.telephony.html">android.telephony</A></TD>
</TR>
<TR>
  <TD ALIGN="center">16</TD>
  <TD><A HREF="pkg_android.opengl.html">android.opengl</A></TD>
</TR>
<TR>
  <TD ALIGN="center">9</TD>
  <TD><A HREF="pkg_android.content.pm.html">android.content.pm</A></TD>
</TR>
<TR>
  <TD ALIGN="center">9</TD>
  <TD><A HREF="pkg_android.view.animation.html">android.view.animation</A></TD>
</TR>
<TR>
  <TD ALIGN="center">5</TD>
  <TD><A HREF="pkg_android.graphics.drawable.html">android.graphics.drawable</A></TD>
</TR>
<TR>
  <TD ALIGN="center">4</TD>
  <TD><A HREF="pkg_android.content.html">android.content</A></TD>
</TR>
<TR>
  <TD ALIGN="center">4</TD>
  <TD><A HREF="pkg_android.net.wifi.html">android.net.wifi</A></TD>
</TR>
<TR>
  <TD ALIGN="center">2</TD>
  <TD><A HREF="pkg_android.media.html">android.media</A></TD>
</TR>
<TR>
  <TD ALIGN="center">2</TD>
  <TD><A HREF="pkg_android.util.html">android.util</A></TD>
</TR>
<TR>
  <TD ALIGN="center">2</TD>
  <TD><A HREF="pkg_android.os.html">android.os</A></TD>
</TR>
<TR>
  <TD ALIGN="center">1</TD>
  <TD><A HREF="pkg_android.html">android</A></TD>
</TR>
<TR>
  <TD ALIGN="center">1</TD>
  <TD><A HREF="pkg_android.widget.html">android.widget</A></TD>
</TR>
<TR>
  <TD ALIGN="center">1</TD>
  <TD><A HREF="pkg_android.app.html">android.app</A></TD>
</TR>
<TR>
  <TD ALIGN="center">&lt;1</TD>
  <TD><A HREF="pkg_android.view.html">android.view</A></TD>
</TR>
<TR>
  <TD ALIGN="center">&lt;1</TD>
  <TD><A HREF="pkg_android.content.res.html">android.content.res</A></TD>
</TR>
<TR>
  <TD ALIGN="center">&lt;1</TD>
  <TD><A HREF="pkg_android.test.html">android.test</A></TD>
</TR>
<TR>
  <TD ALIGN="center">&lt;1</TD>
  <TD><A HREF="pkg_android.location.html">android.location</A></TD>
</TR>
<TR>
  <TD ALIGN="center">&lt;1</TD>
  <TD><A HREF="pkg_android.graphics.html">android.graphics</A></TD>
</TR>
<TR>
  <TD ALIGN="center">&lt;1</TD>
  <TD><A HREF="pkg_android.text.style.html">android.text.style</A></TD>
</TR>
<TR>
  <TD ALIGN="center">&lt;1</TD>
  <TD><A HREF="pkg_android.test.mock.html">android.test.mock</A></TD>
</TR>
<TR>
  <TD ALIGN="center">&lt;1</TD>
  <TD><A HREF="pkg_android.provider.html">android.provider</A></TD>
</TR>
<TR>
  <TD ALIGN="center">&lt;1</TD>
  <TD><A HREF="pkg_android.inputmethodservice.html">android.inputmethodservice</A></TD>
</TR>
<TR>
  <TD ALIGN="center">&lt;1</TD>
  <TD><A HREF="pkg_java.util.concurrent.locks.html">java.util.concurrent.locks</A></TD>
</TR>
<TR>
  <TD ALIGN="center">&lt;1</TD>
  <TD><A HREF="pkg_java.util.concurrent.html">java.util.concurrent</A></TD>
</TR>
<TR>
  <TD ALIGN="center">&lt;1</TD>
  <TD><A HREF="pkg_android.hardware.html">android.hardware</A></TD>
</TR>
</TABLE>
<p style="font-size:10px">* See <a href="#calculation">Calculation of Change Percentages</a>, below.</p>
<br>
<a name="classes"></a>
<h2>Changed Classes and <i>Interfaces</i>, Sorted by Percentage Difference</h2>
<TABLE summary="Classes sorted by percentage difference" WIDTH="100%">
<TR WIDTH="20%">
  <TH WIDTH="10%">Percentage<br>Difference*</TH>
  <TH><b>Class or <i>Interface</i></b></TH>
</TR>
<TR>
  <TD ALIGN="center">55</TD>
  <TD><A HREF="android.telephony.gsm.SmsMessage.html">
android.telephony.gsm.SmsMessage</A></TD>
</TR>
<TR>
  <TD ALIGN="center">50</TD>
  <TD><A HREF="android.media.ToneGenerator.html">
android.media.ToneGenerator</A></TD>
</TR>
<TR>
  <TD ALIGN="center">50</TD>
  <TD><A HREF="android.telephony.gsm.SmsManager.html">
android.telephony.gsm.SmsManager</A></TD>
</TR>
<TR>
  <TD ALIGN="center">50</TD>
  <TD><A HREF="android.telephony.gsm.SmsMessage.SubmitPdu.html">
android.telephony.gsm.SmsMessage.SubmitPdu</A></TD>
</TR>
<TR>
  <TD ALIGN="center">47</TD>
  <TD><A HREF="android.graphics.drawable.NinePatchDrawable.html">
android.graphics.drawable.NinePatchDrawable</A></TD>
</TR>
<TR>
  <TD ALIGN="center">42</TD>
  <TD><A HREF="android.media.MediaRecorder.AudioSource.html">
android.media.MediaRecorder.AudioSource</A></TD>
</TR>
<TR>
  <TD ALIGN="center">33</TD>
  <TD><A HREF="android.util.Config.html">
android.util.Config</A></TD>
</TR>
<TR>
  <TD ALIGN="center">30</TD>
  <TD><A HREF="android.os.Build.VERSION.html">
android.os.Build.VERSION</A></TD>
</TR>
<TR>
  <TD ALIGN="center">25</TD>
  <TD><A HREF="android.telephony.gsm.SmsMessage.MessageClass.html">
android.telephony.gsm.SmsMessage.MessageClass</A></TD>
</TR>
<TR>
  <TD ALIGN="center">23</TD>
  <TD><A HREF="android.R.anim.html">
android.R.anim</A></TD>
</TR>
<TR>
  <TD ALIGN="center">23</TD>
  <TD><A HREF="android.text.style.ImageSpan.html">
android.text.style.ImageSpan</A></TD>
</TR>
<TR>
  <TD ALIGN="center">22</TD>
  <TD><A HREF="android.app.SearchManager.html">
android.app.SearchManager</A></TD>
</TR>
<TR>
  <TD ALIGN="center">22</TD>
  <TD><A HREF="android.widget.TabWidget.html">
android.widget.TabWidget</A></TD>
</TR>
<TR>
  <TD ALIGN="center">21</TD>
  <TD><A HREF="android.util.DisplayMetrics.html">
android.util.DisplayMetrics</A></TD>
</TR>
<TR>
  <TD ALIGN="center">21</TD>
  <TD><A HREF="android.graphics.BitmapFactory.Options.html">
android.graphics.BitmapFactory.Options</A></TD>
</TR>
<TR>
  <TD ALIGN="center">20</TD>
  <TD><A HREF="android.graphics.drawable.BitmapDrawable.html">
android.graphics.drawable.BitmapDrawable</A></TD>
</TR>
<TR>
  <TD ALIGN="center">20</TD>
  <TD><A HREF="android.test.AndroidTestCase.html">
android.test.AndroidTestCase</A></TD>
</TR>
<TR>
  <TD ALIGN="center">16</TD>
  <TD><A HREF="android.widget.TabHost.TabSpec.html">
android.widget.TabHost.TabSpec</A></TD>
</TR>
<TR>
  <TD ALIGN="center">15</TD>
  <TD><A HREF="android.os.RemoteCallbackList.html">
android.os.RemoteCallbackList</A></TD>
</TR>
<TR>
  <TD ALIGN="center">14</TD>
  <TD><A HREF="android.content.pm.PackageManager.html">
android.content.pm.PackageManager</A></TD>
</TR>
<TR>
  <TD ALIGN="center">14</TD>
  <TD><A HREF="android.graphics.Bitmap.html">
android.graphics.Bitmap</A></TD>
</TR>
<TR>
  <TD ALIGN="center">12</TD>
  <TD><A HREF="android.content.pm.ApplicationInfo.html">
android.content.pm.ApplicationInfo</A></TD>
</TR>
<TR>
  <TD ALIGN="center">12</TD>
  <TD><A HREF="android.content.pm.ConfigurationInfo.html">
android.content.pm.ConfigurationInfo</A></TD>
</TR>
<TR>
  <TD ALIGN="center">11</TD>
  <TD><A HREF="android.app.LauncherActivity.html">
android.app.LauncherActivity</A></TD>
</TR>
<TR>
  <TD ALIGN="center">10</TD>
  <TD><A HREF="android.content.res.Configuration.html">
android.content.res.Configuration</A></TD>
</TR>
<TR>
  <TD ALIGN="center">8</TD>
  <TD><A HREF="android.provider.MediaStore.Audio.Genres.Members.html">
android.provider.MediaStore.Audio.Genres.Members</A></TD>
</TR>
<TR>
  <TD ALIGN="center">7</TD>
  <TD><A HREF="android.provider.Settings.Secure.html">
android.provider.Settings.Secure</A></TD>
</TR>
<TR>
  <TD ALIGN="center">7</TD>
  <TD><A HREF="android.app.LauncherActivity.ListItem.html">
android.app.LauncherActivity.ListItem</A></TD>
</TR>
<TR>
  <TD ALIGN="center">7</TD>
  <TD><A HREF="android.location.Address.html">
android.location.Address</A></TD>
</TR>
<TR>
  <TD ALIGN="center">6</TD>
  <TD><A HREF="android.os.Build.html">
android.os.Build</A></TD>
</TR>
<TR>
  <TD ALIGN="center">6</TD>
  <TD><A HREF="android.view.VelocityTracker.html">
android.view.VelocityTracker</A></TD>
</TR>
<TR>
  <TD ALIGN="center">6</TD>
  <TD><A HREF="android.widget.CheckedTextView.html">
android.widget.CheckedTextView</A></TD>
</TR>
<TR>
  <TD ALIGN="center">5</TD>
  <TD><A HREF="android.graphics.Typeface.html">
android.graphics.Typeface</A></TD>
</TR>
<TR>
  <TD ALIGN="center">5</TD>
  <TD><A HREF="android.provider.MediaStore.Audio.Media.html">
android.provider.MediaStore.Audio.Media</A></TD>
</TR>
<TR>
  <TD ALIGN="center">5</TD>
  <TD><A HREF="android.telephony.TelephonyManager.html">
android.telephony.TelephonyManager</A></TD>
</TR>
<TR>
  <TD ALIGN="center">5</TD>
  <TD><A HREF="java.util.concurrent.TimeUnit.html">
java.util.concurrent.TimeUnit</A></TD>
</TR>
<TR>
  <TD ALIGN="center">4</TD>
  <TD><A HREF="android.content.ContentProvider.html">
android.content.ContentProvider</A></TD>
</TR>
<TR>
  <TD ALIGN="center">4</TD>
  <TD><A HREF="android.graphics.NinePatch.html">
android.graphics.NinePatch</A></TD>
</TR>
<TR>
  <TD ALIGN="center">4</TD>
  <TD><A HREF="android.graphics.drawable.AnimationDrawable.html">
android.graphics.drawable.AnimationDrawable</A></TD>
</TR>
<TR>
  <TD ALIGN="center">4</TD>
  <TD><A HREF="android.Manifest.permission_group.html">
android.Manifest.permission_group</A></TD>
</TR>
<TR>
  <TD ALIGN="center">4</TD>
  <TD><A HREF="android.graphics.BitmapFactory.html">
android.graphics.BitmapFactory</A></TD>
</TR>
<TR>
  <TD ALIGN="center">4</TD>
  <TD><A HREF="android.Manifest.permission.html">
android.Manifest.permission</A></TD>
</TR>
<TR>
  <TD ALIGN="center">4</TD>
  <TD><A HREF="android.content.pm.ProviderInfo.html">
android.content.pm.ProviderInfo</A></TD>
</TR>
<TR>
  <TD ALIGN="center">3</TD>
  <TD><A HREF="android.view.ViewConfiguration.html">
android.view.ViewConfiguration</A></TD>
</TR>
<TR>
  <TD ALIGN="center">3</TD>
  <TD><A HREF="android.view.Window.Callback.html">
<i>android.view.Window.Callback</i></A></TD>
</TR>
<TR>
  <TD ALIGN="center">3</TD>
  <TD><A HREF="android.inputmethodservice.KeyboardView.html">
android.inputmethodservice.KeyboardView</A></TD>
</TR>
<TR>
  <TD ALIGN="center">3</TD>
  <TD><A HREF="android.content.ComponentName.html">
android.content.ComponentName</A></TD>
</TR>
<TR>
  <TD ALIGN="center">3</TD>
  <TD><A HREF="android.widget.PopupWindow.html">
android.widget.PopupWindow</A></TD>
</TR>
<TR>
  <TD ALIGN="center">2</TD>
  <TD><A HREF="android.R.attr.html">
android.R.attr</A></TD>
</TR>
<TR>
  <TD ALIGN="center">2</TD>
  <TD><A HREF="android.content.Intent.html">
android.content.Intent</A></TD>
</TR>
<TR>
  <TD ALIGN="center">2</TD>
  <TD><A HREF="android.widget.AutoCompleteTextView.html">
android.widget.AutoCompleteTextView</A></TD>
</TR>
<TR>
  <TD ALIGN="center">2</TD>
  <TD><A HREF="android.util.TypedValue.html">
android.util.TypedValue</A></TD>
</TR>
<TR>
  <TD ALIGN="center">2</TD>
  <TD><A HREF="android.app.PendingIntent.html">
android.app.PendingIntent</A></TD>
</TR>
<TR>
  <TD ALIGN="center">2</TD>
  <TD><A HREF="android.view.Surface.html">
android.view.Surface</A></TD>
</TR>
<TR>
  <TD ALIGN="center">2</TD>
  <TD><A HREF="android.content.Context.html">
android.content.Context</A></TD>
</TR>
<TR>
  <TD ALIGN="center">1</TD>
  <TD><A HREF="android.view.View.html">
android.view.View</A></TD>
</TR>
<TR>
  <TD ALIGN="center">1</TD>
  <TD><A HREF="android.media.MediaRecorder.html">
android.media.MediaRecorder</A></TD>
</TR>
<TR>
  <TD ALIGN="center">1</TD>
  <TD><A HREF="android.test.mock.MockPackageManager.html">
android.test.mock.MockPackageManager</A></TD>
</TR>
<TR>
  <TD ALIGN="center">1</TD>
  <TD><A HREF="java.util.concurrent.locks.AbstractQueuedSynchronizer.html">
java.util.concurrent.locks.AbstractQueuedSynchronizer</A></TD>
</TR>
<TR>
  <TD ALIGN="center">1</TD>
  <TD><A HREF="android.R.style.html">
android.R.style</A></TD>
</TR>
<TR>
  <TD ALIGN="center">1</TD>
  <TD><A HREF="android.widget.ListView.html">
android.widget.ListView</A></TD>
</TR>
<TR>
  <TD ALIGN="center">1</TD>
  <TD><A HREF="android.media.AudioManager.html">
android.media.AudioManager</A></TD>
</TR>
<TR>
  <TD ALIGN="center">1</TD>
  <TD><A HREF="android.content.pm.ActivityInfo.html">
android.content.pm.ActivityInfo</A></TD>
</TR>
<TR>
  <TD ALIGN="center">1</TD>
  <TD><A HREF="android.graphics.drawable.Drawable.html">
android.graphics.drawable.Drawable</A></TD>
</TR>
<TR>
  <TD ALIGN="center">1</TD>
  <TD><A HREF="android.graphics.Canvas.html">
android.graphics.Canvas</A></TD>
</TR>
<TR>
  <TD ALIGN="center">1</TD>
  <TD><A HREF="android.net.wifi.WifiManager.html">
android.net.wifi.WifiManager</A></TD>
</TR>
<TR>
  <TD ALIGN="center">&lt;1</TD>
  <TD><A HREF="android.test.mock.MockContext.html">
android.test.mock.MockContext</A></TD>
</TR>
<TR>
  <TD ALIGN="center">&lt;1</TD>
  <TD><A HREF="android.content.ContextWrapper.html">
android.content.ContextWrapper</A></TD>
</TR>
<TR>
  <TD ALIGN="center">&lt;1</TD>
  <TD><A HREF="android.hardware.SensorManager.html">
android.hardware.SensorManager</A></TD>
</TR>
<TR>
  <TD ALIGN="center">&lt;1</TD>
  <TD><A HREF="android.app.Dialog.html">
android.app.Dialog</A></TD>
</TR>
<TR>
  <TD ALIGN="center">&lt;1</TD>
  <TD><A HREF="android.R.drawable.html">
android.R.drawable</A></TD>
</TR>
<TR>
  <TD ALIGN="center">&lt;1</TD>
  <TD><A HREF="android.provider.Settings.System.html">
android.provider.Settings.System</A></TD>
</TR>
<TR>
  <TD ALIGN="center">&lt;1</TD>
  <TD><A HREF="android.app.Activity.html">
android.app.Activity</A></TD>
</TR>
</TABLE>
<p style="font-size:10px">* See <a href="#calculation">Calculation of Change Percentages</a>, below.</p>
<br>
<h2 id="calculation">Calculation of Change Percentages</h2>
<p>
The percent change statistic reported for all elements in the &quot;to&quot; API Level specification is defined recursively as follows:</p>
<pre>
Percentage difference = 100 * (added + removed + 2*changed)
                        -----------------------------------
                        sum of public elements in BOTH APIs
</pre>
<p>where <code>added</code> is the number of packages added, <code>removed</code> is the number of packages removed, and <code>changed</code> is the number of packages changed.
This definition is applied recursively for the classes and their program elements, so the value for a changed package will be less than 1, unless every class in that package has changed.
The definition ensures that if all packages are removed and all new packages are
added, the change will be 100%.</p>
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