Known Direct Subclasses
ArcMotion |
A PathMotion that generates a curved path along an arc on an imaginary circle containing
the two points.
|
PatternPathMotion |
A PathMotion that takes a Path pattern and applies it to the separation between two points.
|
|
Class Overview
This base class can be extended to provide motion along a Path to Transitions.
Transitions such as ChangeBounds
move Views, typically
in a straight path between the start and end positions. Applications that desire to
have these motions move in a curve can change how Views interpolate in two dimensions
by extending PathMotion and implementing getPath(float, float, float, float)
.
This may be used in XML as an element inside a transition.
<changeBounds>
<pathMotion class="my.app.transition.MyPathMotion"/>
</changeBounds>
Summary
Public Methods |
abstract
Path
|
getPath(float startX, float startY, float endX, float endY)
Provide a Path to interpolate between two points (startX, startY) and
(endX, endY) .
|
[Expand]
Inherited Methods |
From class
java.lang.Object
Object
|
clone()
Creates and returns a copy of this Object .
|
boolean
|
equals(Object o)
Compares this instance with the specified object and indicates if they
are equal.
|
void
|
finalize()
Invoked when the garbage collector has detected that this instance is no longer reachable.
|
final
Class<?>
|
getClass()
Returns the unique instance of Class that represents this
object's class.
|
int
|
hashCode()
Returns an integer hash code for this object.
|
final
void
|
notify()
Causes a thread which is waiting on this object's monitor (by means of
calling one of the wait() methods) to be woken up.
|
final
void
|
notifyAll()
Causes all threads which are waiting on this object's monitor (by means
of calling one of the wait() methods) to be woken up.
|
String
|
toString()
Returns a string containing a concise, human-readable description of this
object.
|
final
void
|
wait()
Causes the calling thread to wait until another thread calls the notify() or notifyAll() method of this object.
|
final
void
|
wait(long millis, int nanos)
Causes the calling thread to wait until another thread calls the notify() or notifyAll() method of this object or until the
specified timeout expires.
|
final
void
|
wait(long millis)
Causes the calling thread to wait until another thread calls the notify() or notifyAll() method of this object or until the
specified timeout expires.
|
|
Public Constructors
Public Methods
public
abstract
Path
getPath
(float startX, float startY, float endX, float endY)
Provide a Path to interpolate between two points (startX, startY)
and
(endX, endY)
. This allows controlled curved motion along two dimensions.
Parameters
startX
| The x coordinate of the starting point. |
startY
| The y coordinate of the starting point. |
endX
| The x coordinate of the ending point. |
endY
| The y coordinate of the ending point. |
Returns
- A Path along which the points should be interpolated. The returned Path
must start at point
(startX, startY)
, typically using
moveTo(float, float)
and end at (endX, endY)
.