ObservableBoolean
public
class
ObservableBoolean
extends BaseObservable
implements
Parcelable,
Serializable
java.lang.Object | ||
↳ | android.databinding.BaseObservable | |
↳ | android.databinding.ObservableBoolean |
An observable class that holds a primitive boolean.
Observable field classes may be used instead of creating an Observable object. It can also create a calculated field, depending on other fields:
public class MyDataObject {
public final ObservableBoolean isAdult = new ObservableBoolean();
public final ObservableBoolean isChild = new ObservableBoolean(isAdult) {
@Override
public boolean get() { return !isAdult.get(); }
};
}
Fields of this type should be declared final because bindings only detect changes in the
field's value, not of the field itself.
This class is parcelable and serializable but callbacks are ignored when the object is parcelled / serialized. Unless you add custom callbacks, this will not be an issue because data binding framework always re-registers callbacks when the view is bound. A parceled ObservableBoolean will lose its dependencies.
Summary
Inherited constants |
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From
interface
android.os.Parcelable
|
Fields | |
---|---|
public
static
final
Creator<ObservableBoolean> |
CREATOR
|
Public constructors | |
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ObservableBoolean(boolean value)
Creates an ObservableBoolean with the given initial value. |
|
ObservableBoolean()
Creates an ObservableBoolean with the initial value of |
|
ObservableBoolean(Observable... dependencies)
Creates an ObservableBoolean that depends on |
Public methods | |
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int
|
describeContents()
|
boolean
|
get()
|
void
|
set(boolean value)
Set the stored value. |
void
|
writeToParcel(Parcel dest, int flags)
|
Inherited methods | |
---|---|
From
class
android.databinding.BaseObservable
| |
From
class
java.lang.Object
| |
From
interface
android.databinding.Observable
| |
From
interface
android.os.Parcelable
|
Fields
Public constructors
ObservableBoolean
ObservableBoolean (boolean value)
Creates an ObservableBoolean with the given initial value.
Parameters | |
---|---|
value |
boolean : the initial value for the ObservableBoolean
|
ObservableBoolean
ObservableBoolean ()
Creates an ObservableBoolean with the initial value of false
.
ObservableBoolean
ObservableBoolean (Observable... dependencies)
Creates an ObservableBoolean that depends on dependencies
. Typically,
ObservableField
s are passed as dependencies. When any dependency
notifies changes, this ObservableBoolean also notifies a change.
Parameters | |
---|---|
dependencies |
Observable : The Observables that this ObservableBoolean depends on.
|
Public methods
describeContents
int describeContents ()
Returns | |
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int |
get
boolean get ()
Returns | |
---|---|
boolean |
the stored value. |
set
void set (boolean value)
Set the stored value.
Parameters | |
---|---|
value |
boolean : The new value
|
Annotations
Interfaces
Classes
- BaseObservable
- CallbackRegistry
- CallbackRegistry.NotifierCallback
- DataBindingUtil
- ListChangeRegistry
- MapChangeRegistry
- MergedDataBinderMapper
- Observable.OnPropertyChangedCallback
- ObservableArrayList
- ObservableArrayMap
- ObservableBoolean
- ObservableByte
- ObservableChar
- ObservableDouble
- ObservableField
- ObservableFloat
- ObservableInt
- ObservableList.OnListChangedCallback
- ObservableLong
- ObservableMap.OnMapChangedCallback
- ObservableParcelable
- ObservableShort
- OnRebindCallback
- PropertyChangeRegistry
- ViewDataBinding
- ViewStubProxy