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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

From interface android.os.Parcelable

Fields

public static final Creator<ObservableBoolean> CREATOR

Public constructors

ObservableBoolean(boolean value)

Creates an ObservableBoolean with the given initial value.

ObservableBoolean()

Creates an ObservableBoolean with the initial value of false.

ObservableBoolean(Observable... dependencies)

Creates an ObservableBoolean that depends on dependencies.

Public methods

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

CREATOR

Creator<ObservableBoolean> CREATOR

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, ObservableFields 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
int

get

boolean get ()

Returns
boolean the stored value.

set

void set (boolean value)

Set the stored value.

Parameters
value boolean: The new value

writeToParcel

void writeToParcel (Parcel dest, 
                int flags)

Parameters
dest Parcel

flags int