# AccessibilityNodeInfo.CollectionInfo Added in[API level 19](https://developer.android.com/guide/topics/manifest/uses-sdk-element.html#ApiLevels) # CollectionInfo *** ** * ** *** Kotlin\|[Java](https://developer.android.com/reference/android/view/accessibility/AccessibilityNodeInfo.CollectionInfo "View this page in Java") ``` class CollectionInfo ``` |---|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------| | [kotlin.Any](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-any/index.html) || | ↳ | [android.view.accessibility.AccessibilityNodeInfo.CollectionInfo](https://developer.android.com/reference/kotlin/android/view/accessibility/AccessibilityNodeInfo.CollectionInfo#) | Class with information if a node is a collection. A collection of items has rows and columns and may be hierarchical. For example, a horizontal list is a collection with one column, as many rows as the list items, and is not hierarchical; A table is a collection with several rows, several columns, and is not hierarchical; A vertical tree is a hierarchical collection with one column and as many rows as the first level children. ## Summary | Nested classes || |---|-------------------------------------------------------------------------------------------------------------------------------------------------------------------| | | [Builder](https://developer.android.com/reference/kotlin/android/view/accessibility/AccessibilityNodeInfo.CollectionInfo.Builder) The builder for CollectionInfo. | | Constants || |----------------------------------------------------------------------------------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------| | static[Int](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-int/index.html) | [SELECTION_MODE_MULTIPLE](https://developer.android.com/reference/kotlin/android/view/accessibility/AccessibilityNodeInfo.CollectionInfo#SELECTION_MODE_MULTIPLE:kotlin.Int) Selection mode where multiple items may be selected. | | static[Int](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-int/index.html) | [SELECTION_MODE_NONE](https://developer.android.com/reference/kotlin/android/view/accessibility/AccessibilityNodeInfo.CollectionInfo#SELECTION_MODE_NONE:kotlin.Int) Selection mode where items are not selectable. | | static[Int](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-int/index.html) | [SELECTION_MODE_SINGLE](https://developer.android.com/reference/kotlin/android/view/accessibility/AccessibilityNodeInfo.CollectionInfo#SELECTION_MODE_SINGLE:kotlin.Int) Selection mode where a single item may be selected. | | static[Int](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-int/index.html) | [UNDEFINED](https://developer.android.com/reference/kotlin/android/view/accessibility/AccessibilityNodeInfo.CollectionInfo#UNDEFINED:kotlin.Int) Constant to denote a missing collection count. | | Public constructors || |---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|---| | [CollectionInfo](https://developer.android.com/reference/kotlin/android/view/accessibility/AccessibilityNodeInfo.CollectionInfo#CollectionInfo(kotlin.Int,%20kotlin.Int,%20kotlin.Boolean))`(`rowCount:` `[Int](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-int/index.html)`, `columnCount:` `[Int](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-int/index.html)`, `hierarchical:` `[Boolean](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-boolean/index.html)`)` Creates a new instance. | | [CollectionInfo](https://developer.android.com/reference/kotlin/android/view/accessibility/AccessibilityNodeInfo.CollectionInfo#CollectionInfo(kotlin.Int,%20kotlin.Int,%20kotlin.Boolean,%20kotlin.Int))`(`rowCount:` `[Int](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-int/index.html)`, `columnCount:` `[Int](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-int/index.html)`, `hierarchical:` `[Boolean](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-boolean/index.html)`, `selectionMode:` `[Int](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-int/index.html)`)` Creates a new instance. | | Public methods || |----------------------------------------------------------------------------------------------------------------------------------------------------------------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------| | [Int](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-int/index.html) | [getColumnCount](https://developer.android.com/reference/kotlin/android/view/accessibility/AccessibilityNodeInfo.CollectionInfo#getColumnCount())`()` Gets the number of columns. | | [Int](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-int/index.html) | [getImportantForAccessibilityItemCount](https://developer.android.com/reference/kotlin/android/view/accessibility/AccessibilityNodeInfo.CollectionInfo#getImportantForAccessibilityItemCount())`()` Gets the number of items in the collection considered important for accessibility. | | [Int](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-int/index.html) | [getItemCount](https://developer.android.com/reference/kotlin/android/view/accessibility/AccessibilityNodeInfo.CollectionInfo#getItemCount())`()` Gets the number of items in the collection. | | [Int](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-int/index.html) | [getRowCount](https://developer.android.com/reference/kotlin/android/view/accessibility/AccessibilityNodeInfo.CollectionInfo#getRowCount())`()` Gets the number of rows. | | [Int](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-int/index.html) | [getSelectionMode](https://developer.android.com/reference/kotlin/android/view/accessibility/AccessibilityNodeInfo.CollectionInfo#getSelectionMode())`()` Gets the collection's selection mode. | | [Boolean](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-boolean/index.html) | [isHierarchical](https://developer.android.com/reference/kotlin/android/view/accessibility/AccessibilityNodeInfo.CollectionInfo#isHierarchical())`()` Gets if the collection is a hierarchically ordered. | | static[AccessibilityNodeInfo.CollectionInfo](https://developer.android.com/reference/kotlin/android/view/accessibility/AccessibilityNodeInfo.CollectionInfo#)! | [obtain](https://developer.android.com/reference/kotlin/android/view/accessibility/AccessibilityNodeInfo.CollectionInfo#obtain(kotlin.Int,%20kotlin.Int,%20kotlin.Boolean))`(`rowCount:` `[Int](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-int/index.html)`, `columnCount:` `[Int](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-int/index.html)`, `hierarchical:` `[Boolean](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-boolean/index.html)`)` Obtains a pooled instance. | | static[AccessibilityNodeInfo.CollectionInfo](https://developer.android.com/reference/kotlin/android/view/accessibility/AccessibilityNodeInfo.CollectionInfo#)! | [obtain](https://developer.android.com/reference/kotlin/android/view/accessibility/AccessibilityNodeInfo.CollectionInfo#obtain(kotlin.Int,%20kotlin.Int,%20kotlin.Boolean,%20kotlin.Int))`(`rowCount:` `[Int](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-int/index.html)`, `columnCount:` `[Int](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-int/index.html)`, `hierarchical:` `[Boolean](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-boolean/index.html)`, `selectionMode:` `[Int](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-int/index.html)`)` Obtains a pooled instance. | ## Constants ### SELECTION_MODE_MULTIPLE Added in[API level 21](https://developer.android.com/guide/topics/manifest/uses-sdk-element.html#ApiLevels) ``` static val SELECTION_MODE_MULTIPLE: Int ``` Selection mode where multiple items may be selected. Value: 2 ### SELECTION_MODE_NONE Added in[API level 21](https://developer.android.com/guide/topics/manifest/uses-sdk-element.html#ApiLevels) ``` static val SELECTION_MODE_NONE: Int ``` Selection mode where items are not selectable. Value: 0 ### SELECTION_MODE_SINGLE Added in[API level 21](https://developer.android.com/guide/topics/manifest/uses-sdk-element.html#ApiLevels) ``` static val SELECTION_MODE_SINGLE: Int ``` Selection mode where a single item may be selected. Value: 1 ### UNDEFINED Added in[API level 35](https://developer.android.com/guide/topics/manifest/uses-sdk-element.html#ApiLevels) ``` static val UNDEFINED: Int ``` Constant to denote a missing collection count. This should be used for`mItemCount`and`mImportantForAccessibilityItemCount`when values for those fields are not known. Value: -1 ## Public constructors ### CollectionInfo Added in[API level 30](https://developer.android.com/guide/topics/manifest/uses-sdk-element.html#ApiLevels) ``` CollectionInfo(     rowCount: Int,     columnCount: Int,     hierarchical: Boolean) ``` Creates a new instance. | Parameters || |----------------|----------------------------------------------------------------------------------------------------------------------------| | `rowCount` | [Int](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-int/index.html):The number of rows. | | `columnCount` | [Int](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-int/index.html):The number of columns. | | `hierarchical` | [Boolean](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-boolean/index.html):Whether the collection is hierarchical. | ### CollectionInfo Added in[API level 30](https://developer.android.com/guide/topics/manifest/uses-sdk-element.html#ApiLevels) ``` CollectionInfo(     rowCount: Int,     columnCount: Int,     hierarchical: Boolean,     selectionMode: Int) ``` Creates a new instance. | Parameters || |-----------------|----------------------------------------------------------------------------------------------------------------------------| | `rowCount` | [Int](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-int/index.html):The number of rows. | | `columnCount` | [Int](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-int/index.html):The number of columns. | | `hierarchical` | [Boolean](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-boolean/index.html):Whether the collection is hierarchical. | | `selectionMode` | [Int](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-int/index.html):The collection's selection mode. | ## Public methods ### getColumnCount Added in[API level 19](https://developer.android.com/guide/topics/manifest/uses-sdk-element.html#ApiLevels) ``` fun getColumnCount(): Int ``` Gets the number of columns. | Return || |----------------------------------------------------------------------------|----------------------------------------------| | [Int](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-int/index.html) | The column count, or -1 if count is unknown. | ### getImportantForAccessibilityItemCount Added in[API level 35](https://developer.android.com/guide/topics/manifest/uses-sdk-element.html#ApiLevels) ``` fun getImportantForAccessibilityItemCount(): Int ``` Gets the number of items in the collection considered important for accessibility. | Return || |----------------------------------------------------------------------------|---------------------------------------------------------------------------------------------------| | [Int](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-int/index.html) | The count of items important for accessibility, which may be`UNDEFINED`if the count is not known. | ### getItemCount Added in[API level 35](https://developer.android.com/guide/topics/manifest/uses-sdk-element.html#ApiLevels) ``` fun getItemCount(): Int ``` Gets the number of items in the collection. | Return || |----------------------------------------------------------------------------|-----------------------------------------------------------------------| | [Int](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-int/index.html) | The count of items, which may be`UNDEFINED`if the count is not known. | ### getRowCount Added in[API level 19](https://developer.android.com/guide/topics/manifest/uses-sdk-element.html#ApiLevels) ``` fun getRowCount(): Int ``` Gets the number of rows. | Return || |----------------------------------------------------------------------------|-------------------------------------------| | [Int](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-int/index.html) | The row count, or -1 if count is unknown. | ### getSelectionMode Added in[API level 21](https://developer.android.com/guide/topics/manifest/uses-sdk-element.html#ApiLevels) ``` fun getSelectionMode(): Int ``` Gets the collection's selection mode. | Return || |----------------------------------------------------------------------------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------| | [Int](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-int/index.html) | The collection's selection mode, one of: - [SELECTION_MODE_NONE](https://developer.android.com/reference/kotlin/android/view/accessibility/AccessibilityNodeInfo.CollectionInfo#SELECTION_MODE_NONE:kotlin.Int) - [SELECTION_MODE_SINGLE](https://developer.android.com/reference/kotlin/android/view/accessibility/AccessibilityNodeInfo.CollectionInfo#SELECTION_MODE_SINGLE:kotlin.Int) - [SELECTION_MODE_MULTIPLE](https://developer.android.com/reference/kotlin/android/view/accessibility/AccessibilityNodeInfo.CollectionInfo#SELECTION_MODE_MULTIPLE:kotlin.Int) | ### isHierarchical Added in[API level 19](https://developer.android.com/guide/topics/manifest/uses-sdk-element.html#ApiLevels) ``` fun isHierarchical(): Boolean ``` Gets if the collection is a hierarchically ordered. | Return || |------------------------------------------------------------------------------------|-----------------------------------------| | [Boolean](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-boolean/index.html) | Whether the collection is hierarchical. | ### obtain Added in[API level 19](https://developer.android.com/guide/topics/manifest/uses-sdk-element.html#ApiLevels) Deprecated in[API level 33](https://developer.android.com/guide/topics/manifest/uses-sdk-element.html#ApiLevels) ``` static fun obtain(     rowCount: Int,     columnCount: Int,     hierarchical: Boolean ): AccessibilityNodeInfo.CollectionInfo! ``` **Deprecated:** *Object pooling has been discontinued. Create a new instance using the constructor[android.view.accessibility.AccessibilityNodeInfo.CollectionInfo#CollectionInfo(int,int,boolean)](https://developer.android.com/reference/kotlin/android/view/accessibility/AccessibilityNodeInfo.CollectionInfo#CollectionInfo(kotlin.Int,%20kotlin.Int,%20kotlin.Boolean))instead.* Obtains a pooled instance. | Parameters || |----------------|------------------------------------------------------------------------------------------------------------------------------| | `rowCount` | [Int](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-int/index.html):The number of rows, or -1 if count is unknown. | | `columnCount` | [Int](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-int/index.html):The number of columns, or -1 if count is unknown. | | `hierarchical` | [Boolean](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-boolean/index.html):Whether the collection is hierarchical. | ### obtain Added in[API level 21](https://developer.android.com/guide/topics/manifest/uses-sdk-element.html#ApiLevels) Deprecated in[API level 33](https://developer.android.com/guide/topics/manifest/uses-sdk-element.html#ApiLevels) ``` static fun obtain(     rowCount: Int,     columnCount: Int,     hierarchical: Boolean,     selectionMode: Int ): AccessibilityNodeInfo.CollectionInfo! ``` **Deprecated:** *Object pooling has been discontinued. Create a new instance using the constructor[android.view.accessibility.AccessibilityNodeInfo.CollectionInfo#CollectionInfo(int,int,boolean,int)](https://developer.android.com/reference/kotlin/android/view/accessibility/AccessibilityNodeInfo.CollectionInfo#CollectionInfo(kotlin.Int,%20kotlin.Int,%20kotlin.Boolean,%20kotlin.Int))instead.* Obtains a pooled instance. | Parameters || |-----------------|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------| | `rowCount` | [Int](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-int/index.html):The number of rows. | | `columnCount` | [Int](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-int/index.html):The number of columns. | | `hierarchical` | [Boolean](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-boolean/index.html):Whether the collection is hierarchical. | | `selectionMode` | [Int](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-int/index.html):The collection's selection mode, one of: - [SELECTION_MODE_NONE](https://developer.android.com/reference/kotlin/android/view/accessibility/AccessibilityNodeInfo.CollectionInfo#SELECTION_MODE_NONE:kotlin.Int) - [SELECTION_MODE_SINGLE](https://developer.android.com/reference/kotlin/android/view/accessibility/AccessibilityNodeInfo.CollectionInfo#SELECTION_MODE_SINGLE:kotlin.Int) - [SELECTION_MODE_MULTIPLE](https://developer.android.com/reference/kotlin/android/view/accessibility/AccessibilityNodeInfo.CollectionInfo#SELECTION_MODE_MULTIPLE:kotlin.Int) |