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public abstract class PathMotion
extends Object
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. | |
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). |
Inherited methods |
From class java.lang.Object Object | clone() Creates and returns a copy of this object. | boolean | equals(Object obj) Indicates whether some other object is "equal to" this one. | void | finalize() Called by the garbage collector on an object when garbage collection determines that there are no more references to the object. | final Class<?> | getClass() Returns the runtime class of this Object. | int | hashCode() Returns a hash code value for the object. | final void | notify() Wakes up a single thread that is waiting on this object's monitor. | final void | notifyAll() Wakes up all threads that are waiting on this object's monitor. | String | toString() Returns a string representation of the object. | final void | wait(long timeoutMillis, int nanos) Causes the current thread to wait until it is awakened, typically by being notified or interrupted, or until a certain amount of real time has elapsed. | final void | wait(long timeoutMillis) Causes the current thread to wait until it is awakened, typically by being notified or interrupted, or until a certain amount of real time has elapsed. | final void | wait() Causes the current thread to wait until it is awakened, typically by being notified or interrupted. | |
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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Last updated 2025-02-10 UTC.
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