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OnActionExpandListener
interface OnActionExpandListener
Interface definition for a callback to be invoked when a menu item marked with MenuItem.SHOW_AS_ACTION_COLLAPSE_ACTION_VIEW is expanded or collapsed.
Summary
Public methods
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Last updated 2025-02-10 UTC.
[[["Easy to understand","easyToUnderstand","thumb-up"],["Solved my problem","solvedMyProblem","thumb-up"],["Other","otherUp","thumb-up"]],[["Missing the information I need","missingTheInformationINeed","thumb-down"],["Too complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-02-10 UTC."],[],[],null,["# MenuItem.OnActionExpandListener\n\nAdded in [API level 14](https://developer.android.com/guide/topics/manifest/uses-sdk-element.html#ApiLevels)\n\nOnActionExpandListener\n======================\n\n*** ** * ** ***\n\nKotlin \\|[Java](/reference/android/view/MenuItem.OnActionExpandListener \"View this page in Java\") \n\n```\ninterface OnActionExpandListener\n```\n\n|---------------------------------------------------|\n| [android.view.MenuItem.OnActionExpandListener](#) |\n\nInterface definition for a callback to be invoked when a menu item marked with [MenuItem.SHOW_AS_ACTION_COLLAPSE_ACTION_VIEW](/reference/kotlin/android/view/MenuItem#SHOW_AS_ACTION_COLLAPSE_ACTION_VIEW:kotlin.Int) is expanded or collapsed.\n\nSummary\n-------\n\n| Public methods ||\n|---------------------------------------------------------------------------------------------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|\n| abstract [Boolean](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-boolean/index.html) | [onMenuItemActionCollapse](#onMenuItemActionCollapse(android.view.MenuItem))`(`item:` `[MenuItem](/reference/kotlin/android/view/MenuItem)`)` Called when a menu item with [MenuItem.SHOW_AS_ACTION_COLLAPSE_ACTION_VIEW](/reference/kotlin/android/view/MenuItem#SHOW_AS_ACTION_COLLAPSE_ACTION_VIEW:kotlin.Int) is collapsed. |\n| abstract [Boolean](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-boolean/index.html) | [onMenuItemActionExpand](#onMenuItemActionExpand(android.view.MenuItem))`(`item:` `[MenuItem](/reference/kotlin/android/view/MenuItem)`)` Called when a menu item with [MenuItem.SHOW_AS_ACTION_COLLAPSE_ACTION_VIEW](/reference/kotlin/android/view/MenuItem#SHOW_AS_ACTION_COLLAPSE_ACTION_VIEW:kotlin.Int) is expanded. |\n\nPublic methods\n--------------\n\n### onMenuItemActionCollapse\n\nAdded in [API level 14](https://developer.android.com/guide/topics/manifest/uses-sdk-element.html#ApiLevels) \n\n```\nabstract fun onMenuItemActionCollapse(item: MenuItem): Boolean\n```\n\nCalled when a menu item with [MenuItem.SHOW_AS_ACTION_COLLAPSE_ACTION_VIEW](/reference/kotlin/android/view/MenuItem#SHOW_AS_ACTION_COLLAPSE_ACTION_VIEW:kotlin.Int) is collapsed.\n\n| Parameters ||\n|--------|-----------------------------------------------------------------------------------------------------------|\n| `item` | [MenuItem](/reference/kotlin/android/view/MenuItem): Item that was collapsed This value cannot be `null`. |\n\n| Return ||\n|------------------------------------------------------------------------------------|-----------------------------------------------------------------------------|\n| [Boolean](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-boolean/index.html) | true if the item should collapse, false if collapsing should be suppressed. |\n\n### onMenuItemActionExpand\n\nAdded in [API level 14](https://developer.android.com/guide/topics/manifest/uses-sdk-element.html#ApiLevels) \n\n```\nabstract fun onMenuItemActionExpand(item: MenuItem): Boolean\n```\n\nCalled when a menu item with [MenuItem.SHOW_AS_ACTION_COLLAPSE_ACTION_VIEW](/reference/kotlin/android/view/MenuItem#SHOW_AS_ACTION_COLLAPSE_ACTION_VIEW:kotlin.Int) is expanded.\n\n| Parameters ||\n|--------|----------------------------------------------------------------------------------------------------------|\n| `item` | [MenuItem](/reference/kotlin/android/view/MenuItem): Item that was expanded This value cannot be `null`. |\n\n| Return ||\n|------------------------------------------------------------------------------------|--------------------------------------------------------------------------|\n| [Boolean](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-boolean/index.html) | true if the item should expand, false if expansion should be suppressed. |"]]
