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LocaleList

public final class LocaleList
extends Object implements Parcelable

java.lang.Object
↳	android.os.LocaleList

LocaleList is an immutable list of Locales, typically used to keep an ordered list of user preferences for locales.

Summary

Inherited constants

From interface android.os.Parcelable

`int`	`CONTENTS_FILE_DESCRIPTOR` Descriptor bit used with `describeContents()`: indicates that the Parcelable object's flattened representation includes a file descriptor.
`int`	`PARCELABLE_WRITE_RETURN_VALUE` Flag for use with `writeToParcel(Parcel, int)`: the object being written is a return value, that is the result of a function such as "`Parcelable someFunction()`", "`void someFunction(out Parcelable)`", or "`void someFunction(inout Parcelable)`".

Fields
`public static final Creator<LocaleList>`	`CREATOR`

Public constructors
`LocaleList(Locale... list)` Creates a new `LocaleList`.

Public methods
`int`	`describeContents()` Describe the kinds of special objects contained in this Parcelable instance's marshaled representation.
`boolean`	`equals(Object other)` Indicates whether some other object is "equal to" this one.
`static LocaleList`	`forLanguageTags(String list)` Generates a new LocaleList with the given language tags.
`Locale`	`get(int index)` Retrieves the `Locale` at the specified index.
`static LocaleList`	`getAdjustedDefault()` Returns the default locale list, adjusted by moving the default locale to its first position.
`static LocaleList`	`getDefault()` The result is guaranteed to include the default Locale returned by Locale.getDefault(), but not necessarily at the top of the list.
`static LocaleList`	`getEmptyLocaleList()` Retrieve an empty instance of `LocaleList`.
`Locale`	`getFirstMatch(String[] supportedLocales)` Returns the first match in the locale list given an unordered array of supported locales in BCP 47 format.
`int`	`hashCode()` Returns a hash code value for the object.
`int`	`indexOf(Locale locale)` Searches this `LocaleList` for the specified `Locale` and returns the index of the first occurrence.
`boolean`	`isEmpty()` Returns whether the `LocaleList` contains no `Locale` items.
`static boolean`	`isPseudoLocale(ULocale locale)` Returns true if locale is a pseudo-locale, false otherwise.
`static void`	`setDefault(LocaleList locales)` Also sets the default locale by calling Locale.setDefault() with the first locale in the list.
`int`	`size()` Returns the number of `Locale` items in this `LocaleList`.
`String`	`toLanguageTags()` Retrieves a String representation of the language tags in this list.
`String`	`toString()` Returns a string representation of the object.
`void`	`writeToParcel(Parcel dest, int parcelableFlags)` Flatten this object in to a Parcel.

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 timeout, 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 timeout)` 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.

From interface


        
          android.os.Parcelable

`abstract int`	`describeContents()` Describe the kinds of special objects contained in this Parcelable instance's marshaled representation.
`abstract void`	`writeToParcel(Parcel dest, int flags)` Flatten this object in to a Parcel.

Fields

CREATOR

public static final Creator<LocaleList> CREATOR

Public constructors

LocaleList

public LocaleList (Locale... list)

Creates a new LocaleList. If two or more same locales are passed, the repeated locales will be dropped.

For empty lists of Locale items it is better to use getEmptyLocaleList(), which returns a pre-constructed empty list.

Parameters
`list`	`Locale`: This value cannot be `null`.

Throws
`NullPointerException`	if any of the input locales is `null`.

Public methods

describeContents

public int describeContents ()

Describe the kinds of special objects contained in this Parcelable instance's marshaled representation. For example, if the object will include a file descriptor in the output of writeToParcel(android.os.Parcel, int), the return value of this method must include the CONTENTS_FILE_DESCRIPTOR bit.

Returns
`int`	a bitmask indicating the set of special object types marshaled by this Parcelable object instance. Value is either `0` or `CONTENTS_FILE_DESCRIPTOR`

equals

public boolean equals (Object other)

Indicates whether some other object is "equal to" this one.

The equals method implements an equivalence relation on non-null object references:

It is reflexive: for any non-null reference value x, x.equals(x) should return true.
It is symmetric: for any non-null reference values x and y, x.equals(y) should return true if and only if y.equals(x) returns true.
It is transitive: for any non-null reference values x, y, and z, if x.equals(y) returns true and y.equals(z) returns true, then x.equals(z) should return true.
It is consistent: for any non-null reference values x and y, multiple invocations of x.equals(y) consistently return true or consistently return false, provided no information used in equals comparisons on the objects is modified.
For any non-null reference value x, x.equals(null) should return false.

The equals method for class Object implements the most discriminating possible equivalence relation on objects; that is, for any non-null reference values x and y, this method returns true if and only if x and y refer to the same object (x == y has the value true).

Note that it is generally necessary to override the hashCode method whenever this method is overridden, so as to maintain the general contract for the hashCode method, which states that equal objects must have equal hash codes.

Parameters
`other`	`Object`: This value may be `null`.

Returns
`boolean`	`true` if this object is the same as the obj argument; `false` otherwise.

forLanguageTags

public static LocaleList forLanguageTags (String list)

Generates a new LocaleList with the given language tags.

Parameters
`list`	`String`: The language tags to be included as a single `String` separated by commas. This value may be `null`.

Returns
`LocaleList`	A new instance with the `Locale` items identified by the given tags. This value cannot be `null`.

get

public Locale get (int index)

Retrieves the Locale at the specified index.

Parameters
`index`	`int`: The position to retrieve.

Returns
`Locale`	The `Locale` in the given index.

getAdjustedDefault

public static LocaleList getAdjustedDefault ()

Returns the default locale list, adjusted by moving the default locale to its first position.

Returns
`LocaleList`	This value cannot be `null`.

getDefault

public static LocaleList getDefault ()

The result is guaranteed to include the default Locale returned by Locale.getDefault(), but not necessarily at the top of the list. The default locale not being at the top of the list is an indication that the system has set the default locale to one of the user's other preferred locales, having concluded that the primary preference is not supported but a secondary preference is.

Note that the default LocaleList would change if Locale.setDefault() is called. This method takes that into account by always checking the output of Locale.getDefault() and recalculating the default LocaleList if needed.

Returns
`LocaleList`	This value cannot be `null`.

getEmptyLocaleList

public static LocaleList getEmptyLocaleList ()

Retrieve an empty instance of LocaleList.

Returns
`LocaleList`	This value cannot be `null`.

getFirstMatch

public Locale getFirstMatch (String[] supportedLocales)

Returns the first match in the locale list given an unordered array of supported locales in BCP 47 format.

Parameters
`supportedLocales`	`String`

Returns
`Locale`	The first `Locale` from this list that appears in the given array, or `null` if the `LocaleList` is empty.

hashCode

public int hashCode ()

Returns a hash code value for the object. This method is supported for the benefit of hash tables such as those provided by HashMap.

The general contract of hashCode is:

Whenever it is invoked on the same object more than once during an execution of a Java application, the hashCode method must consistently return the same integer, provided no information used in equals comparisons on the object is modified. This integer need not remain consistent from one execution of an application to another execution of the same application.
If two objects are equal according to the equals(Object) method, then calling the hashCode method on each of the two objects must produce the same integer result.
It is not required that if two objects are unequal according to the equals(java.lang.Object) method, then calling the hashCode method on each of the two objects must produce distinct integer results. However, the programmer should be aware that producing distinct integer results for unequal objects may improve the performance of hash tables.

As much as is reasonably practical, the hashCode method defined by class Object does return distinct integers for distinct objects. (This is typically implemented by converting the internal address of the object into an integer, but this implementation technique is not required by the Java™ programming language.)

Returns
`int`	a hash code value for this object.

indexOf

public int indexOf (Locale locale)

Searches this LocaleList for the specified Locale and returns the index of the first occurrence.

Parameters
`locale`	`Locale`: The `Locale` to search for.

Returns
`int`	The index of the first occurrence of the `Locale` or `-1` if the item wasn't found. Value is -1 or greater

isEmpty

public boolean isEmpty ()

Returns whether the LocaleList contains no Locale items.

Returns
`boolean`	`true` if this `LocaleList` has no `Locale` items, `false` otherwise.

isPseudoLocale

public static boolean isPseudoLocale (ULocale locale)

Returns true if locale is a pseudo-locale, false otherwise.

Parameters
`locale`	`ULocale`: This value may be `null`.

Returns
`boolean`

setDefault

public static void setDefault (LocaleList locales)

Also sets the default locale by calling Locale.setDefault() with the first locale in the list.

Parameters
`locales`	`LocaleList`: This value cannot be `null`.

Throws
`NullPointerException`	if the input is `null`.
`IllegalArgumentException`	if the input is empty.

size

public int size ()

Returns the number of Locale items in this LocaleList.

Returns
`int`	Value is 0 or greater

toLanguageTags

public String toLanguageTags ()

Retrieves a String representation of the language tags in this list.

Returns
`String`	This value cannot be `null`.

toString

public String toString ()

Returns a string representation of the object. In general, the toString method returns a string that "textually represents" this object. The result should be a concise but informative representation that is easy for a person to read. It is recommended that all subclasses override this method.

The toString method for class Object returns a string consisting of the name of the class of which the object is an instance, the at-sign character `@', and the unsigned hexadecimal representation of the hash code of the object. In other words, this method returns a string equal to the value of:

 getClass().getName() + '@' + Integer.toHexString(hashCode())

Returns
`String`	a string representation of the object.

writeToParcel

public void writeToParcel (Parcel dest, 
                int parcelableFlags)

Flatten this object in to a Parcel.

Parameters
`dest`	`Parcel`: The Parcel in which the object should be written.
`parcelableFlags`	`int`: Additional flags about how the object should be written. May be 0 or `Parcelable.PARCELABLE_WRITE_RETURN_VALUE`. Value is either `0` or a combination of `Parcelable.PARCELABLE_WRITE_RETURN_VALUE`, and android.os.Parcelable.PARCELABLE_ELIDE_DUPLICATES

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Results for

LocaleList

Summary

Inherited constants

Fields

Public constructors

Public methods

Inherited methods

Fields

CREATOR

Public constructors

LocaleList

Public methods

describeContents

equals

forLanguageTags

get

getAdjustedDefault

getDefault

getEmptyLocaleList

getFirstMatch

hashCode

indexOf

isEmpty

isPseudoLocale

setDefault

size

toLanguageTags

toString

writeToParcel