# Attributes Added in[API level 1](https://developer.android.com/guide/topics/manifest/uses-sdk-element.html#ApiLevels) # Attributes ``` open class Attributes : Cloneable, MutableMap ``` |---|------------------------------------------------------------------------------------------------------| | [kotlin.Any](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-any/index.html) || | ↳ | [java.util.jar.Attributes](https://developer.android.com/reference/kotlin/java/util/jar/Attributes#) | The Attributes class maps Manifest attribute names to associated string values. Valid attribute names are case-insensitive, are restricted to the ASCII characters in the set \[0-9a-zA-Z_-\], and cannot exceed 70 characters in length. There must be a colon and a SPACE after the name; the combined length will not exceed 72 characters. Attribute values can contain any characters and will be UTF8-encoded when written to the output stream. See the[JAR File Specification](https://docs.oracle.com/en/java/javase/17/docs/specs/jar/jar.html)for more information about valid attribute names and values. This map and its views have a predictable iteration order, namely the order that keys were inserted into the map, as with[LinkedHashMap](https://developer.android.com/reference/kotlin/java/util/LinkedHashMap.html#). ## Summary | Nested classes || |------|------------------------------------------------------------------------------------------------------| | open | [Name](https://developer.android.com/reference/kotlin/java/util/jar/Attributes.Name) The Attributes. | | Public constructors || |------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|---| | [Attributes](https://developer.android.com/reference/kotlin/java/util/jar/Attributes#Attributes())`()` Constructs a new, empty Attributes object with default size. | | [Attributes](https://developer.android.com/reference/kotlin/java/util/jar/Attributes#Attributes(kotlin.Int))`(`size:` `[Int](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-int/index.html)`)` Constructs a new, empty Attributes object with the specified initial size. | | [Attributes](https://developer.android.com/reference/kotlin/java/util/jar/Attributes#Attributes(java.util.jar.Attributes))`(`attr:` `[Attributes](https://developer.android.com/reference/kotlin/java/util/jar/Attributes#)!`)` Constructs a new Attributes object with the same attribute name-value mappings as in the specified Attributes. | | Public methods || |----------------------------------------------------------------------------------------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------| | open[Unit](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-unit/index.html) | [clear](https://developer.android.com/reference/kotlin/java/util/jar/Attributes#clear())`()` Removes all attributes from this Map. | | open[Any](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-any/index.html) | [clone](https://developer.android.com/reference/kotlin/java/util/jar/Attributes#clone())`()` Returns a copy of the Attributes, implemented as follows: ```kotlin public Object clone() { return new Attributes(this); } ``` Since the attribute names and values are themselves immutable, the Attributes returned can be safely modified without affecting the original.
| | open[Boolean](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-boolean/index.html) | [containsKey](https://developer.android.com/reference/kotlin/java/util/jar/Attributes#containsKey(kotlin.Any))`(`key:` `[Any](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-any/index.html)!`)` Returns true if this Map contains the specified attribute name (key). | | open[Boolean](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-boolean/index.html) | [containsValue](https://developer.android.com/reference/kotlin/java/util/jar/Attributes#containsValue(kotlin.Any))`(`value:` `[Any](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-any/index.html)!`)` Returns true if this Map maps one or more attribute names (keys) to the specified value. | | open[Boolean](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-boolean/index.html) | [equals](https://developer.android.com/reference/kotlin/java/util/jar/Attributes#equals(kotlin.Any))`(`other:` `[Any](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-any/index.html)?`)` Compares the specified object to the underlying[map](https://developer.android.com/reference/kotlin/java/util/jar/Attributes#map:kotlin.collections.MutableMap)for equality. | | open[Any](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-any/index.html)? | [get](https://developer.android.com/reference/kotlin/java/util/jar/Attributes#get(kotlin.Any))`(`key:` `[Any](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-any/index.html)!`)` Returns the value of the specified attribute name, or null if the attribute name was not found. | | open[String](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-string/index.html)! | [getValue](https://developer.android.com/reference/kotlin/java/util/jar/Attributes#getValue(kotlin.String))`(`name:` `[String](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-string/index.html)!`)` Returns the value of the specified attribute name, specified as a string, or null if the attribute was not found. | | open[String](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-string/index.html)! | [getValue](https://developer.android.com/reference/kotlin/java/util/jar/Attributes#getValue(java.util.jar.Attributes.Name))`(`name:` `[Attributes.Name](https://developer.android.com/reference/kotlin/java/util/jar/Attributes.Name)!`)` Returns the value of the specified Attributes. | | open[Int](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-int/index.html) | [hashCode](https://developer.android.com/reference/kotlin/java/util/jar/Attributes#hashCode())`()` Returns the hash code value for this Map. | | open[Boolean](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-boolean/index.html) | [isEmpty](https://developer.android.com/reference/kotlin/java/util/jar/Attributes#isEmpty())`()` Returns true if this Map contains no attributes. | | open[Any](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-any/index.html)? | [put](https://developer.android.com/reference/kotlin/java/util/jar/Attributes#put(kotlin.Any,%20kotlin.Any))`(`key:` `[Any](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-any/index.html)!`, `value:` `[Any](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-any/index.html)!`)` Associates the specified value with the specified attribute name (key) in this Map. | | open[Unit](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-unit/index.html) | [putAll](https://developer.android.com/reference/kotlin/java/util/jar/Attributes#putAll(kotlin.collections.Map))`(`from:` `[Map](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin.collections/-map/index.html)<*,` `*>`)` Copies all of the attribute name-value mappings from the specified Attributes to this Map. | | open[String](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-string/index.html)! | [putValue](https://developer.android.com/reference/kotlin/java/util/jar/Attributes#putValue(kotlin.String,%20kotlin.String))`(`name:` `[String](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-string/index.html)!`, `value:` `[String](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-string/index.html)!`)` Associates the specified value with the specified attribute name, specified as a String. | | open[Any](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-any/index.html)? | [remove](https://developer.android.com/reference/kotlin/java/util/jar/Attributes#remove(kotlin.Any))`(`key:` `[Any](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-any/index.html)!`)` Removes the attribute with the specified name (key) from this Map. | | Properties || |------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------| | open[MutableSet](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin.collections/-mutable-set/index.html)\<[MutableEntry](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin.collections/-mutable-map/-mutable-entry/index.html)\<[Any](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-any/index.html)!,[Any](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-any/index.html)!\>\> | [entries](https://developer.android.com/reference/kotlin/java/util/jar/Attributes#entries:kotlin.collections.MutableSet) Returns a Collection view of the attribute name-value mappings contained in this Map. | | open[MutableSet](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin.collections/-mutable-set/index.html)\<[Any](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-any/index.html)!\> | [keys](https://developer.android.com/reference/kotlin/java/util/jar/Attributes#keys:kotlin.collections.MutableSet) Returns a Set view of the attribute names (keys) contained in this Map. | | [MutableMap](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin.collections/-mutable-map/index.html)\<[Any](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-any/index.html)!,[Any](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-any/index.html)!\>! | [map](https://developer.android.com/reference/kotlin/java/util/jar/Attributes#map:kotlin.collections.MutableMap) The attribute name-value mappings. | | open[Int](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-int/index.html) | [size](https://developer.android.com/reference/kotlin/java/util/jar/Attributes#size:kotlin.Int) Returns the number of attributes in this Map. | | open[MutableCollection](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin.collections/-mutable-collection/index.html)\<[Any](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-any/index.html)!\> | [values](https://developer.android.com/reference/kotlin/java/util/jar/Attributes#values:kotlin.collections.MutableCollection) Returns a Collection view of the attribute values contained in this Map. | ## Public constructors ### Attributes Added in[API level 1](https://developer.android.com/guide/topics/manifest/uses-sdk-element.html#ApiLevels) ``` Attributes() ``` Constructs a new, empty Attributes object with default size. ### Attributes Added in[API level 1](https://developer.android.com/guide/topics/manifest/uses-sdk-element.html#ApiLevels) ``` Attributes(size: Int) ``` Constructs a new, empty Attributes object with the specified initial size. | Parameters || |--------|-------------------------------------------------------------------------------------------------------------| | `size` | [Int](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-int/index.html):the initial number of attributes | ### Attributes Added in[API level 1](https://developer.android.com/guide/topics/manifest/uses-sdk-element.html#ApiLevels) ``` Attributes(attr: Attributes!) ``` Constructs a new Attributes object with the same attribute name-value mappings as in the specified Attributes. | Parameters || |--------|------------------------------------------------------------------------------------------------------------------| | `attr` | [Attributes](https://developer.android.com/reference/kotlin/java/util/jar/Attributes#)!:the specified Attributes | ## Public methods ### clear Added in[API level 1](https://developer.android.com/guide/topics/manifest/uses-sdk-element.html#ApiLevels) ``` open fun clear(): Unit ``` Removes all attributes from this Map. | Exceptions || |-------------------------------------------|-----------------------------------------------------| | `java.lang.UnsupportedOperationException` | if the`clear`operation is not supported by this map | ### clone Added in[API level 1](https://developer.android.com/guide/topics/manifest/uses-sdk-element.html#ApiLevels) ``` open fun clone(): Any ``` Returns a copy of the Attributes, implemented as follows: ```kotlin public Object clone() { return new Attributes(this); } ``` Since the attribute names and values are themselves immutable, the Attributes returned can be safely modified without affecting the original.
| Return || |----------------------------------------------------------------------------|---------------------------| | [Any](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-any/index.html) | a clone of this instance. | | Exceptions || |----------------------------------------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------| | `java.lang.CloneNotSupportedException` | if the object's class does not support the`Cloneable`interface. Subclasses that override the`clone`method can also throw this exception to indicate that an instance cannot be cloned. | ### containsKey Added in[API level 1](https://developer.android.com/guide/topics/manifest/uses-sdk-element.html#ApiLevels) ``` open fun containsKey(key: Any!): Boolean ``` Returns true if this Map contains the specified attribute name (key). | Parameters || |--------|----------------------------------------------------------------------------------------------------------------------------| | `key` | [Any](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-any/index.html)!:key whose presence in this map is to be tested | | `name` | the attribute name | | Return || |------------------------------------------------------------------------------------|--------------------------------------------------------| | [Boolean](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-boolean/index.html) | true if this Map contains the specified attribute name | | Exceptions || |----------------------------------|---------------------------------------------------------------------------------------------| | `java.lang.ClassCastException` | if the key is of an inappropriate type for this map (java.util.Collection#) | | `java.lang.NullPointerException` | if the specified key is null and this map does not permit null keys (java.util.Collection#) | ### containsValue Added in[API level 1](https://developer.android.com/guide/topics/manifest/uses-sdk-element.html#ApiLevels) ``` open fun containsValue(value: Any!): Boolean ``` Returns true if this Map maps one or more attribute names (keys) to the specified value. | Parameters || |---------|-------------------------------------------------------------------------------------------------| | `value` | [Any](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-any/index.html)!:the attribute value | | Return || |------------------------------------------------------------------------------------|--------------------------------------------------------------------------| | [Boolean](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-boolean/index.html) | true if this Map maps one or more attribute names to the specified value | | Exceptions || |----------------------------------|-------------------------------------------------------------------------------------------------| | `java.lang.ClassCastException` | if the value is of an inappropriate type for this map (java.util.Collection#) | | `java.lang.NullPointerException` | if the specified value is null and this map does not permit null values (java.util.Collection#) | ### equals Added in[API level 1](https://developer.android.com/guide/topics/manifest/uses-sdk-element.html#ApiLevels) ``` open fun equals(other: Any?): Boolean ``` Compares the specified object to the underlying[map](https://developer.android.com/reference/kotlin/java/util/jar/Attributes#map:kotlin.collections.MutableMap)for equality. Returns true if the given object is also a Map and the two maps represent the same mappings. | Parameters || |-------|---------------------------------------------| | `obj` | the reference object with which to compare. | | `o` | the Object to be compared | | Return || |------------------------------------------------------------------------------------|---------------------------------------------------| | [Boolean](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-boolean/index.html) | true if the specified Object is equal to this Map | ### get Added in[API level 1](https://developer.android.com/guide/topics/manifest/uses-sdk-element.html#ApiLevels) ``` open fun get(key: Any!): Any? ``` Returns the value of the specified attribute name, or null if the attribute name was not found. | Parameters || |--------|------------------------------------------------------------------------------------------------------------------------------| | `key` | [Any](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-any/index.html)!:the key whose associated value is to be returned | | `name` | the attribute name | | Return || |-----------------------------------------------------------------------------|------------------------------------------------------------------| | [Any](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-any/index.html)? | the value of the specified attribute name, or null if not found. | | Exceptions || |----------------------------------|---------------------------------------------------------------------------------------------| | `java.lang.ClassCastException` | if the key is of an inappropriate type for this map (java.util.Collection#) | | `java.lang.NullPointerException` | if the specified key is null and this map does not permit null keys (java.util.Collection#) | ### getValue Added in[API level 1](https://developer.android.com/guide/topics/manifest/uses-sdk-element.html#ApiLevels) ``` open fun getValue(name: String!): String! ``` Returns the value of the specified attribute name, specified as a string, or null if the attribute was not found. The attribute name is case-insensitive. This method is defined as: ```kotlin return (String)get(new Attributes.Name((String)name)); ``` | Parameters || |--------|------------------------------------------------------------------------------------------------------------------| | `name` | [String](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-string/index.html)!:the attribute name as a string | | Return || |-----------------------------------------------------------------------------------|-------------------------------------------------------------------------| | [String](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-string/index.html)! | the String value of the specified attribute name, or null if not found. | | Exceptions || |--------------------------------------|----------------------------------| | `java.lang.IllegalArgumentException` | if the attribute name is invalid | ### getValue Added in[API level 1](https://developer.android.com/guide/topics/manifest/uses-sdk-element.html#ApiLevels) ``` open fun getValue(name: Attributes.Name!): String! ``` Returns the value of the specified Attributes.Name, or null if the attribute was not found. This method is defined as: ```kotlin return (String)get(name); ``` | Parameters || |--------|-----------------------------------------------------------------------------------------------------------------------------| | `name` | [Attributes.Name](https://developer.android.com/reference/kotlin/java/util/jar/Attributes.Name)!:the Attributes.Name object | | Return || |-----------------------------------------------------------------------------------|-------------------------------------------------------------------------| | [String](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-string/index.html)! | the String value of the specified Attribute.Name, or null if not found. | ### hashCode Added in[API level 1](https://developer.android.com/guide/topics/manifest/uses-sdk-element.html#ApiLevels) ``` open fun hashCode(): Int ``` Returns the hash code value for this Map. | Return || |----------------------------------------------------------------------------|----------------------------------| | [Int](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-int/index.html) | the hash code value for this map | ### isEmpty Added in[API level 1](https://developer.android.com/guide/topics/manifest/uses-sdk-element.html#ApiLevels) ``` open fun isEmpty(): Boolean ``` Returns true if this Map contains no attributes. | Return || |------------------------------------------------------------------------------------|--------------------------------------------------| | [Boolean](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-boolean/index.html) | `true`if this map contains no key-value mappings | ### put Added in[API level 1](https://developer.android.com/guide/topics/manifest/uses-sdk-element.html#ApiLevels) ``` open fun put(     key: Any!,     value: Any! ): Any? ``` Associates the specified value with the specified attribute name (key) in this Map. If the Map previously contained a mapping for the attribute name, the old value is replaced. | Parameters || |---------|------------------------------------------------------------------------------------------------------------------------------------| | `key` | [Any](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-any/index.html)!:key with which the specified value is to be associated | | `value` | [Any](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-any/index.html)!:the attribute value | | `name` | the attribute name | | Return || |-----------------------------------------------------------------------------|------------------------------------------------------| | [Any](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-any/index.html)? | the previous value of the attribute, or null if none | | Exceptions || |-------------------------------------------|------------------------------------------------------------------------------------------| | `java.lang.UnsupportedOperationException` | if the`put`operation is not supported by this map | | `java.lang.ClassCastException` | if the name is not a Attributes.Name or the value is not a String | | `java.lang.NullPointerException` | if the specified key or value is null and this map does not permit null keys or values | | `java.lang.IllegalArgumentException` | if some property of the specified key or value prevents it from being stored in this map | ### putAll Added in[API level 1](https://developer.android.com/guide/topics/manifest/uses-sdk-element.html#ApiLevels) ``` open fun putAll(from: Map<*, *>): Unit ``` Copies all of the attribute name-value mappings from the specified Attributes to this Map. Duplicate mappings will be replaced. | Parameters || |--------|-----------------------------------------| | `m` | mappings to be stored in this map | | `attr` | the Attributes to be stored in this map | | Exceptions || |-------------------------------------------|--------------------------------------------------------------------------------------------------------------------------------------| | `java.lang.UnsupportedOperationException` | if the`putAll`operation is not supported by this map | | `java.lang.ClassCastException` | if attr is not an Attributes | | `java.lang.NullPointerException` | if the specified map is null, or if this map does not permit null keys or values, and the specified map contains null keys or values | | `java.lang.IllegalArgumentException` | if some property of a key or value in the specified map prevents it from being stored in this map | ### putValue Added in[API level 1](https://developer.android.com/guide/topics/manifest/uses-sdk-element.html#ApiLevels) ``` open fun putValue(     name: String!,     value: String! ): String! ``` Associates the specified value with the specified attribute name, specified as a String. The attributes name is case-insensitive. If the Map previously contained a mapping for the attribute name, the old value is replaced. This method is defined as: ```kotlin return (String)put(new Attributes.Name(name), value); ``` | Parameters || |---------|------------------------------------------------------------------------------------------------------------------| | `name` | [String](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-string/index.html)!:the attribute name as a string | | `value` | [String](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-string/index.html)!:the attribute value | | Return || |-----------------------------------------------------------------------------------|------------------------------------------------------| | [String](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-string/index.html)! | the previous value of the attribute, or null if none | | Exceptions || |--------------------------------------|----------------------------------| | `java.lang.IllegalArgumentException` | if the attribute name is invalid | ### remove Added in[API level 1](https://developer.android.com/guide/topics/manifest/uses-sdk-element.html#ApiLevels) ``` open fun remove(key: Any!): Any? ``` Removes the attribute with the specified name (key) from this Map. Returns the previous attribute value, or null if none. | Parameters || |--------|-----------------------------------------------------------------------------------------------------------------------------| | `key` | [Any](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-any/index.html)!:key whose mapping is to be removed from the map | | `name` | attribute name | | Return || |-----------------------------------------------------------------------------|------------------------------------------------------| | [Any](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-any/index.html)? | the previous value of the attribute, or null if none | | Exceptions || |-------------------------------------------|---------------------------------------------------------------------------------------------| | `java.lang.UnsupportedOperationException` | if the`remove`operation is not supported by this map | | `java.lang.ClassCastException` | if the key is of an inappropriate type for this map (java.util.Collection#) | | `java.lang.NullPointerException` | if the specified key is null and this map does not permit null keys (java.util.Collection#) | ## Properties ### entries Added in[API level 1](https://developer.android.com/guide/topics/manifest/uses-sdk-element.html#ApiLevels) ``` open val entries: MutableSet> ``` Returns a Collection view of the attribute name-value mappings contained in this Map. | Return || |-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|--------------------------------------------------| | [MutableSet](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin.collections/-mutable-set/index.html)<[MutableEntry](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin.collections/-mutable-map/-mutable-entry/index.html)<[Any](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-any/index.html)!,` `[Any](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-any/index.html)!>> | a set view of the mappings contained in this map | ### keys Added in[API level 1](https://developer.android.com/guide/topics/manifest/uses-sdk-element.html#ApiLevels) ``` open val keys: MutableSet ``` Returns a Set view of the attribute names (keys) contained in this Map. | Return || |------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|----------------------------------------------| | [MutableSet](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin.collections/-mutable-set/index.html)<[Any](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-any/index.html)!> | a set view of the keys contained in this map | ### map Added in[API level 1](https://developer.android.com/guide/topics/manifest/uses-sdk-element.html#ApiLevels) ``` protected var map: MutableMap! ``` The attribute name-value mappings. ### size Added in[API level 1](https://developer.android.com/guide/topics/manifest/uses-sdk-element.html#ApiLevels) ``` open val size: Int ``` Returns the number of attributes in this Map. | Return || |----------------------------------------------------------------------------|----------------------------------------------| | [Int](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-int/index.html) | the number of key-value mappings in this map | ### values Added in[API level 1](https://developer.android.com/guide/topics/manifest/uses-sdk-element.html#ApiLevels) ``` open val values: MutableCollection ``` Returns a Collection view of the attribute values contained in this Map. | Return || |--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|-------------------------------------------------------| | [MutableCollection](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin.collections/-mutable-collection/index.html)<[Any](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-any/index.html)!> | a collection view of the values contained in this map |