GestureStroke
public
class
GestureStroke
extends Object
java.lang.Object | |
↳ | android.gesture.GestureStroke |
A gesture stroke started on a touch down and ended on a touch up. A stroke consists of a sequence of timed points. One or multiple strokes form a gesture.
Summary
Fields | |
---|---|
public
final
RectF |
boundingBox
|
public
final
float |
length
|
public
final
float[] |
points
|
Public constructors | |
---|---|
GestureStroke(ArrayList<GesturePoint> points)
A constructor that constructs a gesture stroke from a list of gesture points. |
Public methods | |
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void
|
clearPath()
Invalidates the cached path that is used to render the stroke. |
Object
|
clone()
Creates and returns a copy of this object. |
OrientedBoundingBox
|
computeOrientedBoundingBox()
Computes an oriented bounding box of the stroke. |
Path
|
getPath()
|
Path
|
toPath(float width, float height, int numSample)
Converts the stroke to a Path of a given number of points. |
Inherited methods | |
---|---|
Fields
Public constructors
GestureStroke
public GestureStroke (ArrayList<GesturePoint> points)
A constructor that constructs a gesture stroke from a list of gesture points.
Public methods
clearPath
public void clearPath ()
Invalidates the cached path that is used to render the stroke.
clone
public Object clone ()
Creates and returns a copy of this object. The precise meaning
of "copy" may depend on the class of the object. The general
intent is that, for any object x
, the expression:
will be true, and that the expression: x.clone() != x
will be x.clone().getClass() == x.getClass()
true
, but these are not absolute requirements.
While it is typically the case that:
will be x.clone().equals(x)
true
, this is not an absolute requirement.
By convention, the returned object should be obtained by calling
super.clone
. If a class and all of its superclasses (except
Object
) obey this convention, it will be the case that
x.clone().getClass() == x.getClass()
.
By convention, the object returned by this method should be independent
of this object (which is being cloned). To achieve this independence,
it may be necessary to modify one or more fields of the object returned
by super.clone
before returning it. Typically, this means
copying any mutable objects that comprise the internal "deep structure"
of the object being cloned and replacing the references to these
objects with references to the copies. If a class contains only
primitive fields or references to immutable objects, then it is usually
the case that no fields in the object returned by super.clone
need to be modified.
Returns | |
---|---|
Object |
a clone of this instance. |
computeOrientedBoundingBox
public OrientedBoundingBox computeOrientedBoundingBox ()
Computes an oriented bounding box of the stroke.
Returns | |
---|---|
OrientedBoundingBox |
OrientedBoundingBox |
toPath
public Path toPath (float width, float height, int numSample)
Converts the stroke to a Path of a given number of points.
Parameters | |
---|---|
width |
float : the width of the bounding box of the target path |
height |
float : the height of the bounding box of the target path |
numSample |
int : the number of points needed |
Returns | |
---|---|
Path |
the path |