ListViewAutoScrollHelper

An implementation of


        
         AutoScrollHelper

that knows how to scroll through a


        
         ListView

Summary

Public Constructors
	ListViewAutoScrollHelper ( ListView target)

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.

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.

[Expand]

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 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.

From interface android.view.View.OnTouchListener

Public Methods

public boolean canTargetScrollHorizontally (int direction)

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

Parameters

direction	Negative to check scrolling left, positive to check scrolling right.

Returns

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

public boolean canTargetScrollVertically (int direction)

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

Parameters

direction	Negative to check scrolling up, positive to check scrolling down.

Returns

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

public void scrollTargetBy (int deltaX, int deltaY)

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

Parameters

deltaX	The number of pixels to scroll by horizontally.
deltaY	The number of pixels to scroll by vertically.

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

Results

Interfaces

Classes

Class Overview

Summary

Public Constructors

public ListViewAutoScrollHelper ( ListView target)

Public Methods

public boolean canTargetScrollHorizontally (int direction)

Parameters

Returns

public boolean canTargetScrollVertically (int direction)

Parameters

Returns

public void scrollTargetBy (int deltaX, int deltaY)

Parameters