PathMotion
public
abstract
class
PathMotion
extends Object
java.lang.Object
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↳ |
androidx.transition.PathMotion
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Known direct subclasses
ArcMotion |
A PathMotion that generates a curved path along an arc on an imaginary circle containing
the two points.
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PatternPathMotion |
A PathMotion that takes a Path pattern and applies it to the separation between two points.
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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) .
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Inherited methods |
From class
java.lang.Object
Object
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clone()
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boolean
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equals(Object arg0)
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void
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finalize()
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final
Class<?>
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getClass()
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int
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hashCode()
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final
void
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notify()
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final
void
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notifyAll()
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String
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toString()
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final
void
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wait(long arg0, int arg1)
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final
void
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wait(long arg0)
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final
void
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wait()
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Public constructors
PathMotion
public PathMotion ()
PathMotion
public PathMotion (Context context,
AttributeSet attrs)
Parameters |
context |
Context |
attrs |
AttributeSet |
Public methods
getPath
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 |
float : The x coordinate of the starting point. |
startY |
float : The y coordinate of the starting point. |
endX |
float : The x coordinate of the ending point. |
endY |
float : The y coordinate of the ending point. |
Returns |
Path |
A Path along which the points should be interpolated. The returned Path
must start at point (startX, startY) , typically using
Path.moveTo(float, float) and end at (endX, endY) .
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