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ListViewAutoScrollHelper

public class ListViewAutoScrollHelper
extends AutoScrollHelper

java.lang.Object
↳	android.support.v4.widget.AutoScrollHelper
	↳	android.support.v4.widget.ListViewAutoScrollHelper

An implementation of AutoScrollHelper that knows how to scroll through a ListView.

Summary

Inherited constants

From class


    android.support.v4.widget.AutoScrollHelper

Public constructors
`ListViewAutoScrollHelper(ListView target)`

Public methods
`boolean`	`canTargetScrollHorizontally(int direction)` Override this method to return whether the target view can be scrolled horizontally in a certain direction.
`boolean`	`canTargetScrollVertically(int direction)` Override this method to return whether the target view can be scrolled vertically in a certain direction.
`void`	`scrollTargetBy(int deltaX, int deltaY)` Override this method to scroll the target view by the specified number of pixels.

Inherited methods

From class


  
    android.support.v4.widget.AutoScrollHelper

`abstract boolean`	`canTargetScrollHorizontally(int direction)` Override this method to return whether the target view can be scrolled horizontally in a certain direction.
`abstract boolean`	`canTargetScrollVertically(int direction)` Override this method to return whether the target view can be scrolled vertically in a certain direction.
`boolean`	`isEnabled()`
`boolean`	`isExclusive()` Indicates whether the scroll helper handles touch events exclusively during scrolling.
`boolean`	`onTouch(View v, MotionEvent event)` Handles touch events by activating automatic scrolling, adjusting scroll velocity, or stopping.
`abstract void`	`scrollTargetBy(int deltaX, int deltaY)` Override this method to scroll the target view by the specified number of pixels.
`AutoScrollHelper`	`setActivationDelay(int delayMillis)` Sets the delay after entering an activation edge before activation of auto-scrolling.
`AutoScrollHelper`	`setEdgeType(int type)` Sets the activation edge type, one of: `EDGE_TYPE_INSIDE` for edges that respond to touches inside the bounds of the host view.
`AutoScrollHelper`	`setEnabled(boolean enabled)` Sets whether the scroll helper is enabled and should respond to touch events.
`AutoScrollHelper`	`setExclusive(boolean exclusive)` Enables or disables exclusive handling of touch events during scrolling.
`AutoScrollHelper`	`setMaximumEdges(float horizontalMax, float verticalMax)` Sets the absolute maximum edge size.
`AutoScrollHelper`	`setMaximumVelocity(float horizontalMax, float verticalMax)` Sets the absolute maximum scrolling velocity.
`AutoScrollHelper`	`setMinimumVelocity(float horizontalMin, float verticalMin)` Sets the absolute minimum scrolling velocity.
`AutoScrollHelper`	`setRampDownDuration(int durationMillis)` Sets the amount of time after de-activation of auto-scrolling that is takes to slow to a stop.
`AutoScrollHelper`	`setRampUpDuration(int durationMillis)` Sets the amount of time after activation of auto-scrolling that is takes to reach target velocity for the current touch position.
`AutoScrollHelper`	`setRelativeEdges(float horizontal, float vertical)` Sets the activation edge size relative to the host view's dimensions.
`AutoScrollHelper`	`setRelativeVelocity(float horizontal, float vertical)` Sets the target scrolling velocity relative to the host view's dimensions.

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 millis, int nanos)` Causes the current thread to wait until another thread invokes the `notify()` method or the `notifyAll()` method for this object, or some other thread interrupts the current thread, or a certain amount of real time has elapsed.
`final void`	`wait(long millis)` Causes the current thread to wait until either another thread invokes the `notify()` method or the `notifyAll()` method for this object, or a specified amount of time has elapsed.
`final void`	`wait()` Causes the current thread to wait until another thread invokes the `notify()` method or the `notifyAll()` method for this object.

From interface


  
    android.view.View.OnTouchListener

Public constructors

ListViewAutoScrollHelper

ListViewAutoScrollHelper (ListView target)

Parameters
`target`	`ListView`

Public methods

canTargetScrollHorizontally

boolean canTargetScrollHorizontally (int direction)

Override this method to return whether the target view can be scrolled horizontally in a certain direction.

Parameters
`direction`	`int`: Negative to check scrolling left, positive to check scrolling right.

Returns
`boolean`	true if the target view is able to horizontally scroll in the specified direction.

canTargetScrollVertically

boolean canTargetScrollVertically (int direction)

Override this method to return whether the target view can be scrolled vertically in a certain direction.

Parameters
`direction`	`int`: Negative to check scrolling up, positive to check scrolling down.

Returns
`boolean`	true if the target view is able to vertically scroll in the specified direction.

scrollTargetBy

void scrollTargetBy (int deltaX, 
                int deltaY)

Override this method to scroll the target view by the specified number of pixels.

Parameters
`deltaX`	`int`: The number of pixels to scroll by horizontally.
`deltaY`	`int`: The number of pixels to scroll by vertically.

Interfaces

Classes

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ListViewAutoScrollHelper

Summary

Inherited constants

Public constructors

Public methods

Inherited methods

Public constructors

ListViewAutoScrollHelper

Public methods

canTargetScrollHorizontally

canTargetScrollVertically

scrollTargetBy