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java.lang.Objectandroid.view.SurfaceView
eu.ensam.ii.vrpn.VrpnSurface
public class VrpnSurface
This SurfaceView
updates two Vrpn Analog channels with the coordinates of the
Surface point that is touched.
Updates are sent as long astouch events occur within the surface. The
X channel range from
app:leftX
to app:rightX
,
and the Y channel values range from app:topY
to
app:bottomY
.
In your layout, declare the following (note the app:
attributes)
<eu.ensam.ii.vrpn.VrpnSurface android:layout_width="fill_parent" android:layout_height="fill_parent" app:leftX="-1" app:rightX="1" app:topY="0" app:bottomY="1" app:vrpnAnalogX="@id/MyVrpnAnalogX" app:vrpnAnalogY="@id/MyVrpnAnalogY" />
The root element of the layout must declare the following line just after the
xmlns:android ...
line :
xmlns:app="http://schemas.android.com/apk/res/your.package.name.here"
Custom XML attributes :
app:vrpnAnalogX
: the id of the Vrpn analog that will
receive the X position of the touch event from this widget. The update value
sent to the Vrpn analog ranges from the app:leftX
value to the
app:rightX
value.app:vrpnAnalogY
: the id of the Vrpn analog that will
receive the Y position of the touch event from this widget. The update value
sent to the Vrpn analog ranges from the app:bottomY
value to the
app:topX
value.app:leftX
: the numeric value mapped onto the left border of
the surface.app:rightX
: the numeric value mapped onto the right border
of the surface. May be greater or lower than app:leftX
.app:bottomY
: the numeric value mapped onto the top border
of the surfaceapp:topY
: the numeric value mapped onto the top border of
the surface. May be greater or lower than app:bottomY
app:vrpnAnalogX
and app:vrpnAnalogY
ids can be
literals or a resource Ids. These resource ids may be kept in a separate Vrpn Id list
Constructor Summary | |
---|---|
VrpnSurface(Context context)
|
|
VrpnSurface(Context context,
AttributeSet attrs)
|
|
VrpnSurface(Context context,
AttributeSet attrs,
int defStyle)
|
Method Summary | |
---|---|
boolean |
onTouch(View v,
MotionEvent event)
Called when a touch event is dispatched to this widget. |
Methods inherited from class java.lang.Object |
---|
equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Constructor Detail |
---|
public VrpnSurface(Context context)
public VrpnSurface(Context context, AttributeSet attrs)
public VrpnSurface(Context context, AttributeSet attrs, int defStyle)
Method Detail |
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public boolean onTouch(View v, MotionEvent event)
If the touch event occurs within the surface of the view, two analog Vrpn updates are send for the X and y position. Updates are sent when ACTION_DOWN, ACTION_MOVE, and ACTION_UP are received. the event history is ignored.
View.OnTouchListener
,
MotionEvent
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