PathMotion

Kotlin |Java

public abstract class PathMotion
extends Object

java.lang.Object
↳	android.transition.PathMotion

Known direct subclasses

ArcMotion, PatternPathMotion

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 constructors
`PathMotion()`
`PathMotion(Context context, AttributeSet attrs)`

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

Added in API level 21

public PathMotion ()

PathMotion

Added in API level 21

public PathMotion (Context context, 
                AttributeSet attrs)

Parameters
`context`	`Context`
`attrs`	`AttributeSet`

Public methods

getPath

Added in API level 21

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)`.