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ObservableDouble

public class ObservableDouble
extends BaseObservable implements Parcelable, Serializable

java.lang.Object
   ↳ android.databinding.BaseObservable
     ↳ android.databinding.ObservableDouble


An observable class that holds a primitive double. It can also create a calculated field, depending on other fields:

Observable field classes may be used instead of creating an Observable object:

public class MyDataObject {
     public final ObservableDouble temperatureC = new ObservableDouble();
     public final ObservableDouble temperatureF = new ObservableDouble(temperatureC) {
         @Override
         public double get() { return (temperatureC.get() * 9 / 5) + 32; }
     };
 }
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 ObservableByte will lose its dependencies.

Summary

Inherited constants

From interface android.os.Parcelable

Fields

public static final Creator<ObservableDouble> CREATOR

Public constructors

ObservableDouble(double value)

Creates an ObservableDouble with the given initial value.

ObservableDouble()

Creates an ObservableDouble with the initial value of 0.

ObservableDouble(Observable... dependencies)

Creates an ObservableDouble that depends on dependencies.

Public methods

int describeContents()
double get()
void set(double 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<ObservableDouble> CREATOR

Public constructors

ObservableDouble

ObservableDouble (double value)

Creates an ObservableDouble with the given initial value.

Parameters
value double: the initial value for the ObservableDouble

ObservableDouble

ObservableDouble ()

Creates an ObservableDouble with the initial value of 0.

ObservableDouble

ObservableDouble (Observable... dependencies)

Creates an ObservableDouble that depends on dependencies. Typically, ObservableFields are passed as dependencies. When any dependency notifies changes, this ObservableDouble also notifies a change.

Parameters
dependencies Observable: The Observables that this ObservableDouble depends on.

Public methods

describeContents

int describeContents ()

Returns
int

get

double get ()

Returns
double the stored value.

set

void set (double value)

Set the stored value.

Parameters
value double: The new value

writeToParcel

void writeToParcel (Parcel dest, 
                int flags)

Parameters
dest Parcel

flags int