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AutoFocusCallback
interface AutoFocusCallback
Callback interface used to notify on completion of camera auto focus.
Devices that do not support auto-focus will receive a "fake" callback to this interface. If your application needs auto-focus and should not be installed on devices without auto-focus, you must declare that your app uses the android.hardware.camera.autofocus feature, in the <uses-feature> manifest element.
Summary
| Public methods |
| abstract Unit |
Called when the camera auto focus completes.
|
Public methods
onAutoFocus
abstract fun onAutoFocus(
success: Boolean,
camera: Camera!
): Unit
Deprecated: Deprecated in Java.
Called when the camera auto focus completes. If the camera does not support auto-focus and autoFocus is called, onAutoFocus will be called immediately with a fake value of success set to true. The auto-focus routine does not lock auto-exposure and auto-white balance after it completes.
| Parameters |
success |
Boolean: true if focus was successful, false if otherwise |
camera |
Camera!: the Camera service object |
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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complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-02-10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,["# Camera.AutoFocusCallback\n\nAdded in [API level 1](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\nAutoFocusCallback\n=================\n\n*** ** * ** ***\n\nKotlin \\|[Java](/reference/android/hardware/Camera.AutoFocusCallback \"View this page in Java\") \n\n```\ninterface AutoFocusCallback\n```\n\n|------------------------------------------------|\n| [android.hardware.Camera.AutoFocusCallback](#) |\n\n*** ** * ** ***\n\n| **This interface was deprecated in API level 21.**\n|\n| We recommend using the new [android.hardware.camera2](/reference/kotlin/android/hardware/camera2/package-summary) API for new applications.\n\nCallback interface used to notify on completion of camera auto focus.\n\nDevices that do not support auto-focus will receive a \"fake\" callback to this interface. If your application needs auto-focus and should not be installed on devices *without* auto-focus, you must declare that your app uses the `android.hardware.camera.autofocus` feature, in the [\\\u003cuses-feature\\\u003e](https://developer.android.com/guide/topics/manifest/uses-feature-element.html) manifest element.\n\nSummary\n-------\n\n| Public methods ||\n|---------------------------------------------------------------------------------------|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|\n| abstract [Unit](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-unit/index.html) | [onAutoFocus](#onAutoFocus(kotlin.Boolean,%20android.hardware.Camera))`(`success:` `[Boolean](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-boolean/index.html)`, `camera:` `[Camera](/reference/kotlin/android/hardware/Camera)!`)` Called when the camera auto focus completes. |\n\nPublic methods\n--------------\n\n### onAutoFocus\n\nAdded in [API level 1](https://developer.android.com/guide/topics/manifest/uses-sdk-element.html#ApiLevels) \n\n```\nabstract fun onAutoFocus(\n success: Boolean, \n camera: Camera!\n): Unit\n```\n\n**Deprecated:** *Deprecated in Java.*\n\nCalled when the camera auto focus completes. If the camera does not support auto-focus and autoFocus is called, onAutoFocus will be called immediately with a fake value of `success` set to `true`. The auto-focus routine does not lock auto-exposure and auto-white balance after it completes.\n\n| Parameters ||\n|-----------|--------------------------------------------------------------------------------------------------------------------------------------|\n| `success` | [Boolean](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-boolean/index.html): true if focus was successful, false if otherwise |\n| `camera` | [Camera](/reference/kotlin/android/hardware/Camera)!: the Camera service object |\n\n**See Also**\n\n- [android.hardware.Camera.Parameters#setAutoExposureLock(boolean)](/reference/kotlin/android/hardware/Camera.Parameters#setAutoExposureLock(kotlin.Boolean))\n- [android.hardware.Camera.Parameters#setAutoWhiteBalanceLock(boolean)](/reference/kotlin/android/hardware/Camera.Parameters#setAutoWhiteBalanceLock(kotlin.Boolean))"]]
