ObservableChar
public
class
ObservableChar
extends BaseObservable
implements
Parcelable,
Serializable
java.lang.Object | ||
↳ | android.databinding.BaseObservable | |
↳ | android.databinding.ObservableChar |
An observable class that holds a primitive char.
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 ObservableChar firstInitial = new ObservableChar();
public final ObservableChar firstInitialCapitalized = new ObservableChar(firstInitial)
@Override
public char get() { return Character.toUpperCase(firstInitial.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 ObservableChar will lose its dependencies.
Summary
Inherited constants |
---|
From
interface
android.os.Parcelable
|
Fields | |
---|---|
public
static
final
Creator<ObservableChar> |
CREATOR
|
Public constructors | |
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ObservableChar(char value)
Creates an ObservableChar with the given initial value. |
|
ObservableChar()
Creates an ObservableChar with the initial value of |
|
ObservableChar(Observable... dependencies)
Creates an ObservableChar that depends on |
Public methods | |
---|---|
int
|
describeContents()
|
char
|
get()
|
void
|
set(char 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
ObservableChar
ObservableChar (char value)
Creates an ObservableChar with the given initial value.
Parameters | |
---|---|
value |
char : the initial value for the ObservableChar
|
ObservableChar
ObservableChar ()
Creates an ObservableChar with the initial value of 0
.
ObservableChar
ObservableChar (Observable... dependencies)
Creates an ObservableChar that depends on dependencies
. Typically,
ObservableField
s are passed as dependencies. When any dependency
notifies changes, this ObservableChar also notifies a change.
Parameters | |
---|---|
dependencies |
Observable : The Observables that this ObservableChar depends on.
|
Public methods
describeContents
int describeContents ()
Returns | |
---|---|
int |
get
char get ()
Returns | |
---|---|
char |
the stored value. |
set
void set (char value)
Set the stored value.
Parameters | |
---|---|
value |
char : 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