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VirtualJoystickView
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org.ros.android.view</FONT>
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Class VirtualJoystickView</H2>
<PRE>
java.lang.Object
  <IMG SRC="../../../../resources/inherit.gif" ALT="extended by ">RelativeLayout
      <IMG SRC="../../../../resources/inherit.gif" ALT="extended by "><B>org.ros.android.view.VirtualJoystickView</B>
</PRE>
<DL>
<DT><B>All Implemented Interfaces:</B> <DD>org.ros.message.MessageListener&lt;nav_msgs.Odometry&gt;, org.ros.node.NodeListener, org.ros.node.NodeMain</DD>
</DL>
<HR>
<DL>
<DT><PRE>public class <B>VirtualJoystickView</B><DT>extends RelativeLayout<DT>implements org.ros.message.MessageListener&lt;nav_msgs.Odometry&gt;, org.ros.node.NodeMain</DL>
</PRE>

<P>
VirtualJoystickView creates a virtual joystick view that publishes velocity
 as (geometry_msgs.Twist) messages. The current version contains the following
 features: snap to axes, turn in place, and resume previous velocity.
<P>

<P>
<HR>

<P>

<!-- ======== CONSTRUCTOR SUMMARY ======== -->

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<TD><CODE><B><A HREF="../../../../org/ros/android/view/VirtualJoystickView.html#VirtualJoystickView(Context)">VirtualJoystickView</A></B>(Context&nbsp;context)</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD><CODE><B><A HREF="../../../../org/ros/android/view/VirtualJoystickView.html#VirtualJoystickView(Context, AttributeSet)">VirtualJoystickView</A></B>(Context&nbsp;context,
                    AttributeSet&nbsp;attrs)</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD><CODE><B><A HREF="../../../../org/ros/android/view/VirtualJoystickView.html#VirtualJoystickView(Context, AttributeSet, int)">VirtualJoystickView</A></B>(Context&nbsp;context,
                    AttributeSet&nbsp;attrs,
                    int&nbsp;defStyle)</CODE>

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&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</TD>
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<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../org/ros/android/view/VirtualJoystickView.html#DisableSnapping()">DisableSnapping</A></B>()</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Allows the user the option to turn off the auto-snap feature.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../org/ros/android/view/VirtualJoystickView.html#EnableSnapping()">EnableSnapping</A></B>()</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Allows the user the option to turn on the auto-snap feature.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;org.ros.namespace.GraphName</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../org/ros/android/view/VirtualJoystickView.html#getDefaultNodeName()">getDefaultNodeName</A></B>()</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../org/ros/android/view/VirtualJoystickView.html#onAnimationEnd(Animation)">onAnimationEnd</A></B>(Animation&nbsp;animation)</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../org/ros/android/view/VirtualJoystickView.html#onAnimationRepeat(Animation)">onAnimationRepeat</A></B>(Animation&nbsp;animation)</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../org/ros/android/view/VirtualJoystickView.html#onAnimationStart(Animation)">onAnimationStart</A></B>(Animation&nbsp;animation)</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../org/ros/android/view/VirtualJoystickView.html#onError(org.ros.node.Node, java.lang.Throwable)">onError</A></B>(org.ros.node.Node&nbsp;node,
        java.lang.Throwable&nbsp;throwable)</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>protected &nbsp;void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../org/ros/android/view/VirtualJoystickView.html#onLayout(boolean, int, int, int, int)">onLayout</A></B>(boolean&nbsp;changed,
         int&nbsp;l,
         int&nbsp;t,
         int&nbsp;r,
         int&nbsp;b)</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Initialize the fields with values that can only be determined once the
 layout for the views has been determined.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../org/ros/android/view/VirtualJoystickView.html#onNewMessage(nav_msgs.Odometry)">onNewMessage</A></B>(nav_msgs.Odometry&nbsp;message)</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../org/ros/android/view/VirtualJoystickView.html#onShutdown(org.ros.node.Node)">onShutdown</A></B>(org.ros.node.Node&nbsp;node)</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../org/ros/android/view/VirtualJoystickView.html#onShutdownComplete(org.ros.node.Node)">onShutdownComplete</A></B>(org.ros.node.Node&nbsp;node)</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../org/ros/android/view/VirtualJoystickView.html#onStart(org.ros.node.ConnectedNode)">onStart</A></B>(org.ros.node.ConnectedNode&nbsp;connectedNode)</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;boolean</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../org/ros/android/view/VirtualJoystickView.html#onTouchEvent(MotionEvent)">onTouchEvent</A></B>(MotionEvent&nbsp;event)</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>&nbsp;void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../org/ros/android/view/VirtualJoystickView.html#setHolonomic(boolean)">setHolonomic</A></B>(boolean&nbsp;enabled)</CODE>

<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</TD>
</TR>
</TABLE>
&nbsp;<A NAME="methods_inherited_from_class_java.lang.Object"><!-- --></A>
<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
<TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor">
<TH ALIGN="left"><B>Methods inherited from class java.lang.Object</B></TH>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD><CODE>clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait</CODE></TD>
</TR>
</TABLE>
&nbsp;<A NAME="methods_inherited_from_class_org.ros.message.MessageListener"><!-- --></A>
<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
<TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor">
<TH ALIGN="left"><B>Methods inherited from interface org.ros.message.MessageListener</B></TH>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD><CODE>onNewMessage</CODE></TD>
</TR>
</TABLE>
&nbsp;
<P>

<!-- ========= CONSTRUCTOR DETAIL ======== -->

<A NAME="constructor_detail"><!-- --></A>
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<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor">
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<B>Constructor Detail</B></FONT></TH>
</TR>
</TABLE>

<A NAME="VirtualJoystickView(Context)"><!-- --></A><H3>
VirtualJoystickView</H3>
<PRE>
public <B>VirtualJoystickView</B>(Context&nbsp;context)</PRE>
<DL>
</DL>
<HR>

<A NAME="VirtualJoystickView(Context, AttributeSet)"><!-- --></A><H3>
VirtualJoystickView</H3>
<PRE>
public <B>VirtualJoystickView</B>(Context&nbsp;context,
                           AttributeSet&nbsp;attrs)</PRE>
<DL>
</DL>
<HR>

<A NAME="VirtualJoystickView(Context, AttributeSet, int)"><!-- --></A><H3>
VirtualJoystickView</H3>
<PRE>
public <B>VirtualJoystickView</B>(Context&nbsp;context,
                           AttributeSet&nbsp;attrs,
                           int&nbsp;defStyle)</PRE>
<DL>
</DL>

<!-- ============ METHOD DETAIL ========== -->

<A NAME="method_detail"><!-- --></A>
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<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor">
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<B>Method Detail</B></FONT></TH>
</TR>
</TABLE>

<A NAME="setHolonomic(boolean)"><!-- --></A><H3>
setHolonomic</H3>
<PRE>
public void <B>setHolonomic</B>(boolean&nbsp;enabled)</PRE>
<DL>
<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>enabled</CODE> - <code>true</code> if this joystick should publish linear velocities
          along the Y axis instead of angular velocities along the Z axis,
          <code>false</code> otherwise</DL>
</DD>
</DL>
<HR>

<A NAME="onAnimationEnd(Animation)"><!-- --></A><H3>
onAnimationEnd</H3>
<PRE>
public void <B>onAnimationEnd</B>(Animation&nbsp;animation)</PRE>
<DL>
<DD><DL>
</DL>
</DD>
<DD><DL>
</DL>
</DD>
</DL>
<HR>

<A NAME="onAnimationRepeat(Animation)"><!-- --></A><H3>
onAnimationRepeat</H3>
<PRE>
public void <B>onAnimationRepeat</B>(Animation&nbsp;animation)</PRE>
<DL>
<DD><DL>
</DL>
</DD>
<DD><DL>
</DL>
</DD>
</DL>
<HR>

<A NAME="onAnimationStart(Animation)"><!-- --></A><H3>
onAnimationStart</H3>
<PRE>
public void <B>onAnimationStart</B>(Animation&nbsp;animation)</PRE>
<DL>
<DD><DL>
</DL>
</DD>
<DD><DL>
</DL>
</DD>
</DL>
<HR>

<A NAME="onNewMessage(nav_msgs.Odometry)"><!-- --></A><H3>
onNewMessage</H3>
<PRE>
public void <B>onNewMessage</B>(nav_msgs.Odometry&nbsp;message)</PRE>
<DL>
<DD><DL>
</DL>
</DD>
<DD><DL>
</DL>
</DD>
</DL>
<HR>

<A NAME="onTouchEvent(MotionEvent)"><!-- --></A><H3>
onTouchEvent</H3>
<PRE>
public boolean <B>onTouchEvent</B>(MotionEvent&nbsp;event)</PRE>
<DL>
<DD><DL>
</DL>
</DD>
<DD><DL>
</DL>
</DD>
</DL>
<HR>

<A NAME="EnableSnapping()"><!-- --></A><H3>
EnableSnapping</H3>
<PRE>
public void <B>EnableSnapping</B>()</PRE>
<DL>
<DD>Allows the user the option to turn on the auto-snap feature.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
</DL>
</DD>
</DL>
<HR>

<A NAME="DisableSnapping()"><!-- --></A><H3>
DisableSnapping</H3>
<PRE>
public void <B>DisableSnapping</B>()</PRE>
<DL>
<DD>Allows the user the option to turn off the auto-snap feature.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
</DL>
</DD>
</DL>
<HR>

<A NAME="onLayout(boolean, int, int, int, int)"><!-- --></A><H3>
onLayout</H3>
<PRE>
protected void <B>onLayout</B>(boolean&nbsp;changed,
                        int&nbsp;l,
                        int&nbsp;t,
                        int&nbsp;r,
                        int&nbsp;b)</PRE>
<DL>
<DD>Initialize the fields with values that can only be determined once the
 layout for the views has been determined.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
</DL>
</DD>
</DL>
<HR>

<A NAME="getDefaultNodeName()"><!-- --></A><H3>
getDefaultNodeName</H3>
<PRE>
public org.ros.namespace.GraphName <B>getDefaultNodeName</B>()</PRE>
<DL>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE>getDefaultNodeName</CODE> in interface <CODE>org.ros.node.NodeMain</CODE></DL>
</DD>
<DD><DL>
</DL>
</DD>
</DL>
<HR>

<A NAME="onStart(org.ros.node.ConnectedNode)"><!-- --></A><H3>
onStart</H3>
<PRE>
public void <B>onStart</B>(org.ros.node.ConnectedNode&nbsp;connectedNode)</PRE>
<DL>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE>onStart</CODE> in interface <CODE>org.ros.node.NodeListener</CODE></DL>
</DD>
<DD><DL>
</DL>
</DD>
</DL>
<HR>

<A NAME="onShutdown(org.ros.node.Node)"><!-- --></A><H3>
onShutdown</H3>
<PRE>
public void <B>onShutdown</B>(org.ros.node.Node&nbsp;node)</PRE>
<DL>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE>onShutdown</CODE> in interface <CODE>org.ros.node.NodeListener</CODE></DL>
</DD>
<DD><DL>
</DL>
</DD>
</DL>
<HR>

<A NAME="onShutdownComplete(org.ros.node.Node)"><!-- --></A><H3>
onShutdownComplete</H3>
<PRE>
public void <B>onShutdownComplete</B>(org.ros.node.Node&nbsp;node)</PRE>
<DL>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE>onShutdownComplete</CODE> in interface <CODE>org.ros.node.NodeListener</CODE></DL>
</DD>
<DD><DL>
</DL>
</DD>
</DL>
<HR>

<A NAME="onError(org.ros.node.Node, java.lang.Throwable)"><!-- --></A><H3>
onError</H3>
<PRE>
public void <B>onError</B>(org.ros.node.Node&nbsp;node,
                    java.lang.Throwable&nbsp;throwable)</PRE>
<DL>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE>onError</CODE> in interface <CODE>org.ros.node.NodeListener</CODE></DL>
</DD>
<DD><DL>
</DL>
</DD>
</DL>
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