Called when a tab that is already selected is chosen again by the user. Some applications may use this action to return to the top level of a category.
FragmentTransaction!: A FragmentTransaction for queuing fragment operations to execute once this method returns. This FragmentTransaction does not support being added to the back stack.
FragmentTransaction!: A FragmentTransaction for queuing fragment operations to execute during a tab switch. The previous tab's unselect and this tab's select will be executed in a single transaction. This FragmentTransaction does not support being added to the back stack.
FragmentTransaction!: A FragmentTransaction for queuing fragment operations to execute during a tab switch. This tab's unselect and the newly selected tab's select will be executed in a single transaction. This FragmentTransaction does not support being added to the back stack.
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Last updated 2025-02-10 UTC.
[null,null,["Last updated 2025-02-10 UTC."],[],[],null,["# ActionBar.TabListener\n\nAdded in [API level 11](https://developer.android.com/guide/topics/manifest/uses-sdk-element.html#ApiLevels) \nDeprecated in [API level 21](https://developer.android.com/guide/topics/manifest/uses-sdk-element.html#ApiLevels)\n\nTabListener\n===========\n\n*** ** * ** ***\n\nKotlin \\|[Java](/reference/android/app/ActionBar.TabListener \"View this page in Java\") \n\n```\ninterface TabListener\n```\n\n|----------------------------------------|\n| [android.app.ActionBar.TabListener](#) |\n\n*** ** * ** ***\n\n| **This interface was deprecated in API level 21.**\n|\n| Action bar navigation modes are deprecated and not supported by inline toolbar action bars. Consider using other [common navigation patterns](http://developer.android.com/design/patterns/navigation.html) instead.\n\nCallback interface invoked when a tab is focused, unfocused, added, or removed.\n\nSummary\n-------\n\n| Public methods ||\n|---------------------------------------------------------------------------------------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|\n| abstract [Unit](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-unit/index.html) | [onTabReselected](#onTabReselected(android.app.ActionBar.Tab,%20android.app.FragmentTransaction))`(`tab:` `[ActionBar.Tab](/reference/kotlin/android/app/ActionBar.Tab)!`, `ft:` `[FragmentTransaction](/reference/kotlin/android/app/FragmentTransaction)!`)` Called when a tab that is already selected is chosen again by the user. |\n| abstract [Unit](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-unit/index.html) | [onTabSelected](#onTabSelected(android.app.ActionBar.Tab,%20android.app.FragmentTransaction))`(`tab:` `[ActionBar.Tab](/reference/kotlin/android/app/ActionBar.Tab)!`, `ft:` `[FragmentTransaction](/reference/kotlin/android/app/FragmentTransaction)!`)` Called when a tab enters the selected state. |\n| abstract [Unit](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-unit/index.html) | [onTabUnselected](#onTabUnselected(android.app.ActionBar.Tab,%20android.app.FragmentTransaction))`(`tab:` `[ActionBar.Tab](/reference/kotlin/android/app/ActionBar.Tab)!`, `ft:` `[FragmentTransaction](/reference/kotlin/android/app/FragmentTransaction)!`)` Called when a tab exits the selected state. |\n\nPublic methods\n--------------\n\n### onTabReselected\n\nAdded in [API level 11](https://developer.android.com/guide/topics/manifest/uses-sdk-element.html#ApiLevels) \n\n```\nabstract fun onTabReselected(\n tab: ActionBar.Tab!, \n ft: FragmentTransaction!\n): Unit\n```\n\n**Deprecated:** *Deprecated in Java.*\n\nCalled when a tab that is already selected is chosen again by the user. Some applications may use this action to return to the top level of a category.\n\n| Parameters ||\n|-------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|\n| `tab` | [ActionBar.Tab](/reference/kotlin/android/app/ActionBar.Tab)!: The tab that was reselected. |\n| `ft` | [FragmentTransaction](/reference/kotlin/android/app/FragmentTransaction)!: A [FragmentTransaction](/reference/kotlin/android/app/FragmentTransaction) for queuing fragment operations to execute once this method returns. This FragmentTransaction does not support being added to the back stack. |\n\n### onTabSelected\n\nAdded in [API level 11](https://developer.android.com/guide/topics/manifest/uses-sdk-element.html#ApiLevels) \n\n```\nabstract fun onTabSelected(\n tab: ActionBar.Tab!, \n ft: FragmentTransaction!\n): Unit\n```\n\n**Deprecated:** *Deprecated in Java.*\n\nCalled when a tab enters the selected state.\n\n| Parameters ||\n|-------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|\n| `tab` | [ActionBar.Tab](/reference/kotlin/android/app/ActionBar.Tab)!: The tab that was selected |\n| `ft` | [FragmentTransaction](/reference/kotlin/android/app/FragmentTransaction)!: A [FragmentTransaction](/reference/kotlin/android/app/FragmentTransaction) for queuing fragment operations to execute during a tab switch. The previous tab's unselect and this tab's select will be executed in a single transaction. This FragmentTransaction does not support being added to the back stack. |\n\n### onTabUnselected\n\nAdded in [API level 11](https://developer.android.com/guide/topics/manifest/uses-sdk-element.html#ApiLevels) \n\n```\nabstract fun onTabUnselected(\n tab: ActionBar.Tab!, \n ft: FragmentTransaction!\n): Unit\n```\n\n**Deprecated:** *Deprecated in Java.*\n\nCalled when a tab exits the selected state.\n\n| Parameters ||\n|-------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|\n| `tab` | [ActionBar.Tab](/reference/kotlin/android/app/ActionBar.Tab)!: The tab that was unselected |\n| `ft` | [FragmentTransaction](/reference/kotlin/android/app/FragmentTransaction)!: A [FragmentTransaction](/reference/kotlin/android/app/FragmentTransaction) for queuing fragment operations to execute during a tab switch. This tab's unselect and the newly selected tab's select will be executed in a single transaction. This FragmentTransaction does not support being added to the back stack. |"]]
