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public
static
interface
NumberPicker.OnScrollListener
| android.widget.NumberPicker.OnScrollListener
|
Interface to listen for the picker scroll state.
Summary
Constants
public static final int SCROLL_STATE_FLING
The user had previously been scrolling using touch and performed a fling.
Constant Value:
2
(0x00000002)
public static final int SCROLL_STATE_IDLE
The view is not scrolling.
Constant Value:
0
(0x00000000)
public static final int SCROLL_STATE_TOUCH_SCROLL
The user is scrolling using touch, and their finger is still on the screen.
Constant Value:
1
(0x00000001)
Public methods
public abstract void onScrollStateChange (NumberPicker view,
int scrollState)
Callback invoked while the number picker scroll state has changed.
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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complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-02-10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,["# NumberPicker.OnScrollListener\n\nAdded in [API level 11](/guide/topics/manifest/uses-sdk-element#ApiLevels) \n\nNumberPicker.OnScrollListener\n=============================\n\n*** ** * ** ***\n\n[Kotlin](/reference/kotlin/android/widget/NumberPicker.OnScrollListener \"View this page in Kotlin\") \\|Java\n\n\n`\npublic\nstatic\n\n\ninterface\nNumberPicker.OnScrollListener\n`\n\n\n`\n\n\n`\n\n|----------------------------------------------|\n| android.widget.NumberPicker.OnScrollListener |\n\n\u003cbr /\u003e\n\n*** ** * ** ***\n\nInterface to listen for the picker scroll state.\n\nSummary\n-------\n\n| ### Constants ||\n|-------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|\n| `int` | [SCROLL_STATE_FLING](/reference/android/widget/NumberPicker.OnScrollListener#SCROLL_STATE_FLING) The user had previously been scrolling using touch and performed a fling. |\n| `int` | [SCROLL_STATE_IDLE](/reference/android/widget/NumberPicker.OnScrollListener#SCROLL_STATE_IDLE) The view is not scrolling. |\n| `int` | [SCROLL_STATE_TOUCH_SCROLL](/reference/android/widget/NumberPicker.OnScrollListener#SCROLL_STATE_TOUCH_SCROLL) The user is scrolling using touch, and their finger is still on the screen. |\n\n| ### Public methods ||\n|------------------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|\n| ` abstract void` | ` `[onScrollStateChange](/reference/android/widget/NumberPicker.OnScrollListener#onScrollStateChange(android.widget.NumberPicker,%20int))`(`[NumberPicker](/reference/android/widget/NumberPicker)` view, int scrollState) ` Callback invoked while the number picker scroll state has changed. |\n\nConstants\n---------\n\n### SCROLL_STATE_FLING\n\nAdded in [API level 11](/guide/topics/manifest/uses-sdk-element#ApiLevels) \n\n```\npublic static final int SCROLL_STATE_FLING\n```\n\nThe user had previously been scrolling using touch and performed a fling.\n\n\u003cbr /\u003e\n\nConstant Value:\n\n2\n(0x00000002)\n\n\n### SCROLL_STATE_IDLE\n\nAdded in [API level 11](/guide/topics/manifest/uses-sdk-element#ApiLevels) \n\n```\npublic static final int SCROLL_STATE_IDLE\n```\n\nThe view is not scrolling.\n\n\u003cbr /\u003e\n\nConstant Value:\n\n0\n(0x00000000)\n\n\n### SCROLL_STATE_TOUCH_SCROLL\n\nAdded in [API level 11](/guide/topics/manifest/uses-sdk-element#ApiLevels) \n\n```\npublic static final int SCROLL_STATE_TOUCH_SCROLL\n```\n\nThe user is scrolling using touch, and their finger is still on the screen.\n\n\u003cbr /\u003e\n\nConstant Value:\n\n1\n(0x00000001)\n\n\nPublic methods\n--------------\n\n### onScrollStateChange\n\nAdded in [API level 11](/guide/topics/manifest/uses-sdk-element#ApiLevels) \n\n```\npublic abstract void onScrollStateChange (NumberPicker view, \n int scrollState)\n```\n\nCallback invoked while the number picker scroll state has changed.\n\n\u003cbr /\u003e\n\n| Parameters ||\n|---------------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|\n| `view` | `NumberPicker`: The view whose scroll state is being reported. \u003cbr /\u003e |\n| `scrollState` | `int`: The current scroll state. One of [SCROLL_STATE_IDLE](/reference/android/widget/NumberPicker.OnScrollListener#SCROLL_STATE_IDLE), [SCROLL_STATE_TOUCH_SCROLL](/reference/android/widget/NumberPicker.OnScrollListener#SCROLL_STATE_TOUCH_SCROLL) or [SCROLL_STATE_IDLE](/reference/android/widget/NumberPicker.OnScrollListener#SCROLL_STATE_IDLE). Value is [SCROLL_STATE_IDLE](/reference/android/widget/NumberPicker.OnScrollListener#SCROLL_STATE_IDLE), [SCROLL_STATE_TOUCH_SCROLL](/reference/android/widget/NumberPicker.OnScrollListener#SCROLL_STATE_TOUCH_SCROLL), or [SCROLL_STATE_FLING](/reference/android/widget/NumberPicker.OnScrollListener#SCROLL_STATE_FLING) \u003cbr /\u003e |"]]
