android.graphics.drawable
Class StateListDrawable

java.lang.Object
  android.graphics.drawable.Drawable
      android.graphics.drawable.DrawableContainer
          android.graphics.drawable.StateListDrawable

All Implemented Interfaces:

Drawable.Callback

public class StateListDrawable
extends DrawableContainer

Lets you assign a number of graphic images to a single Drawable and swap out the visible item by a string ID value.

Nested Class Summary

(package private) static class

StateListDrawable.StateListState

Nested classes/interfaces inherited from class android.graphics.drawable.DrawableContainer

DrawableContainer.DrawableContainerState

Nested classes/interfaces inherited from class android.graphics.drawable.Drawable

Drawable.Callback, Drawable.ConstantState

Field Summary

Fields inherited from class android.graphics.drawable.Drawable

mCallback

Constructor Summary

StateListDrawable()

Method Summary

void	addState(int[] stateSet, Drawable drawable) Add a new image/string ID to the set of images.
(package private) StateListDrawable.StateListState	getStateListState()
void	inflate(Resources r, XmlPullParser parser, AttributeSet attrs)
boolean	isStateful() Indicates whether this view will change its appearance based on state.
protected boolean	onStateChange(int[] stateSet) Override this in your subclass to change appearance if you recognize the specified state.

Methods inherited from class android.graphics.drawable.DrawableContainer

draw, getChangingConfigurations, getConstantState, getCurrent, getIntrinsicHeight, getIntrinsicWidth, getMinimumHeight, getMinimumWidth, getOpacity, getPadding, invalidateDrawable, onBoundsChange, onLevelChange, scheduleDrawable, selectDrawable, setAlpha, setColorFilter, setConstantState, setDither, setVisible, unscheduleDrawable

Methods inherited from class android.graphics.drawable.Drawable

clearColorFilter, copyBounds, copyBounds, createFromPath, createFromStream, createFromXml, createFromXmlInner, getBounds, getLevel, getState, getTransparentRegion, inflateWithAttributes, invalidateSelf, isVisible, resolveOpacity, scheduleSelf, setBounds, setBounds, setCallback, setChangingConfigurations, setColorFilter, setFilterBitmap, setLevel, setState, unscheduleSelf

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

StateListDrawable

public StateListDrawable()

Method Detail

addState

public void addState(int[] stateSet,
                     Drawable drawable)

Add a new image/string ID to the set of images.

Parameters:

stateSet - - An array of resource Ids to associate with the image. Switch to this image by calling setState().

drawable - -The image to show.

isStateful

public boolean isStateful()

Description copied from class: Drawable

Indicates whether this view will change its appearance based on state. Clients can use this to determine whether it is necessary to calculate their state and call setState.

Overrides:

isStateful in class DrawableContainer

Returns:

True if this view changes its appearance based on state, false otherwise.

See Also:

Drawable.setState(int[])

onStateChange

protected boolean onStateChange(int[] stateSet)

Description copied from class: Drawable

Override this in your subclass to change appearance if you recognize the specified state.

Overrides:

onStateChange in class DrawableContainer

Returns:

Returns true if the state change has caused the appearance of the Drawable to change (that is, it needs to be drawn), else false if it looks the same and there is no need to redraw it since its last state.

inflate

public void inflate(Resources r,
                    XmlPullParser parser,
                    AttributeSet attrs)
             throws XmlPullParserException,
                    IOException

Overrides:

inflate in class Drawable

Throws:

XmlPullParserException

IOException

getStateListState

StateListDrawable.StateListState getStateListState()