StateSet
public
class
StateSet
extends Object
State sets are arrays of positive ints where each element
represents the state of a View (e.g. focused,
selected, visible, etc.). A View may be in
one or more of those states.
A state spec is an array of signed ints where each element
represents a required (if positive) or an undesired (if negative)
View state.
Utils dealing with state sets.
In theory we could encapsulate the state set and state spec arrays
and not have static methods here but there is some concern about
performance since these methods are called during view drawing.
Summary
Fields |
|---|
public
static
final
int[] |
NOTHING
A state set that does not contain any valid states.
|
public
static
final
int[] |
WILD_CARD
A state specification that will be matched by all StateSets.
|
Public methods |
|---|
static
String
|
dump(int[] states)
|
static
boolean
|
isWildCard(int[] stateSetOrSpec)
Return whether the stateSetOrSpec is matched by all StateSets.
|
static
boolean
|
stateSetMatches(int[] stateSpec, int[] stateSet)
Return whether the stateSet matches the desired stateSpec.
|
static
boolean
|
stateSetMatches(int[] stateSpec, int state)
Return whether the state matches the desired stateSpec.
|
static
int[]
|
trimStateSet(int[] states, int newSize)
|
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 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.
|
|
Fields
NOTHING
int[] NOTHING
A state set that does not contain any valid states.
WILD_CARD
int[] WILD_CARD
A state specification that will be matched by all StateSets.
Public methods
dump
String dump (int[] states)
isWildCard
boolean isWildCard (int[] stateSetOrSpec)
Return whether the stateSetOrSpec is matched by all StateSets.
| Parameters |
|---|
stateSetOrSpec |
int:
a state set or state spec.
|
stateSetMatches
boolean stateSetMatches (int[] stateSpec,
int[] stateSet)
Return whether the stateSet matches the desired stateSpec.
| Parameters |
|---|
stateSpec |
int:
an array of required (if positive) or
prohibited (if negative) View states. |
stateSet |
int:
an array of View states
|
stateSetMatches
boolean stateSetMatches (int[] stateSpec,
int state)
Return whether the state matches the desired stateSpec.
| Parameters |
|---|
stateSpec |
int:
an array of required (if positive) or
prohibited (if negative) View states. |
state |
int:
a View state
|
trimStateSet
int[] trimStateSet (int[] states,
int newSize)
| Parameters |
|---|
states |
int
|
newSize |
int
|
Developers