Referência do framework MLKitDigitalInkRecognition
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DigitalInkRecognizer
class DigitalInkRecognizer : NSObject
Objeto para reconhecimento de escrita manual em tinta digital.
A tinta digital é a representação vetorial do que um usuário escreveu. Ele é composto por uma sequência
de traços, sendo cada um uma sequência de pontos de contato (coordenadas e carimbo de data/hora). Consulte Ink para
detalhes.
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Declaração
Swift
class func digitalInkRecognizer(options: MLKDigitalInkRecognizerOptions) -> DigitalInkRecognizer
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Realiza o reconhecimento da tinta de entrada.
Usar recognize(ink:context:completion:) em vez desse método pode resultar em uma
a acurácia em alguns casos.
Declaração
Swift
func recognize(ink: MLKInk) async throws -> MLKDigitalInkRecognitionResult
Parâmetros
ink
|
Entrada a ser reconhecida.
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completion
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Realiza um reconhecimento da tinta de entrada usando um contexto de reconhecimento.
Um contexto de reconhecimento contém informações sobre o tamanho da área de escrita e os caracteres
que já foram inseridas na área de texto. Isso ajuda a diferenciar certos casos.
Exemplo de uso: um reconhecimento anterior produziu a string “hello”, que foi inserida em um
campo de texto. O usuário então escreve “mundo” à mão. envie ao método presente a tinta mostrando “mundo”,
e "hello" como uma string em context. O reconhecedor provavelmente retornará a string “world”
com um espaço à esquerda separando as duas palavras.
Consulte DigitalInkRecognitionContext para ver detalhes.
Declaração
Swift
func recognize(ink: MLKInk, context: MLKDigitalInkRecognitionContext) async throws -> MLKDigitalInkRecognitionResult
Parâmetros
ink
|
Entrada a ser reconhecida.
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context
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completion
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Um callback para retornar candidatos de reconhecimento. Acesse DigitalInkRecognizerCallback para ver detalhes. Se nada for reconhecido, uma lista vazia de
candidatos serão passados para a chamada de retorno.
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Última atualização 2025-07-25 UTC.
[null,null,["Última atualização 2025-07-25 UTC."],[[["\u003cp\u003e\u003ccode\u003eDigitalInkRecognizer\u003c/code\u003e is an object used for performing handwriting recognition on digital ink, which is a vector representation of user writing composed of strokes and touch points.\u003c/p\u003e\n"],["\u003cp\u003eIt is initialized using \u003ccode\u003edigitalInkRecognizer(options:)\u003c/code\u003e with specified options for customization.\u003c/p\u003e\n"],["\u003cp\u003eThe primary functions are \u003ccode\u003erecognize(ink:)\u003c/code\u003e and \u003ccode\u003erecognize(ink:context:)\u003c/code\u003e for performing handwriting recognition, with the latter allowing for a recognition context to improve accuracy.\u003c/p\u003e\n"],["\u003cp\u003eUsing a \u003ccode\u003eDigitalInkRecognitionContext\u003c/code\u003e with \u003ccode\u003erecognize(ink:context:)\u003c/code\u003e can provide better accuracy by considering the writing area and pre-existing text.\u003c/p\u003e\n"]]],[],null,["# MLKitDigitalInkRecognition Framework Reference\n\nDigitalInkRecognizer\n====================\n\n class DigitalInkRecognizer : NSObject\n\nObject to perform handwriting recognition on digital ink.\n\nDigital ink is the vector representation of what a user has written. It is composed of a sequence\nof strokes, each being a sequence of touch points (coordinates and timestamp). See [Ink](../Classes/Ink.html) for\ndetails.\n- `\n ``\n ``\n `\n\n ### [-init](#/c:objc(cs)MLKDigitalInkRecognizer(im)init)\n\n `\n ` \n Unavailable. Use [digitalInkRecognizer(options:)](../Classes/DigitalInkRecognizer.html#/c:objc(cs)MLKDigitalInkRecognizer(cm)digitalInkRecognizerWithOptions:) instead.\n- `\n ``\n ``\n `\n\n ### [digitalInkRecognizer(options:)](#/c:objc(cs)MLKDigitalInkRecognizer(cm)digitalInkRecognizerWithOptions:)\n\n `\n ` \n Creates a `DigitalInkRecognizer` object using the specified options.\n\n See [DigitalInkRecognizerOptions](../Classes/DigitalInkRecognizerOptions.html) for details. \n\n #### Declaration\n\n Swift \n\n class func digitalInkRecognizer(options: MLKDigitalInkRecognizerOptions) -\u003e DigitalInkRecognizer\n\n- `\n ``\n ``\n `\n\n ### [recognize(ink:)](#/c:objc(cs)MLKDigitalInkRecognizer(im)recognizeInk:completion:)\n\n `\n ` \n Performs a recognition of the input ink.\n\n Note that using `recognize(ink:context:completion:)` instead of this method may lead to better\n accuracy in some cases. \n\n #### Declaration\n\n Swift \n\n func recognize(ink: MLKInk) async throws -\u003e MLKDigitalInkRecognitionResult\n\n #### Parameters\n\n |--------------------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|\n | ` `*ink*` ` | Input to be recognized. |\n | ` `*completion*` ` | A callback for returning recognition candidates. See [DigitalInkRecognizerCallback](../Type-Definitions.html#/c:MLKDigitalInkRecognizer.h@T@MLKDigitalInkRecognizerCallback) for details. |\n\n- `\n ``\n ``\n `\n\n ### [recognize(ink:context:)](#/c:objc(cs)MLKDigitalInkRecognizer(im)recognizeInk:context:completion:)\n\n `\n ` \n Performs a recognition of the input ink using a recognition context.\n\n A recognition context contains information about the size of the writing area, and the characters\n that have already been entered in the text area. This helps disambiguate certain cases.\n\n Example usage: a previous recognition has yielded the string \"hello\", that has been inserted in a\n text field. The user then handwrites \"world\". Send the present method the ink showing \"world\",\n and \"hello\" as a string in `context`. The recognizer will most likely return the string \" world\"\n with a leading space separating the two words.\n\n See [DigitalInkRecognitionContext](../Classes/DigitalInkRecognitionContext.html) for details. \n\n #### Declaration\n\n Swift \n\n func recognize(ink: MLKInk, context: MLKDigitalInkRecognitionContext) async throws -\u003e MLKDigitalInkRecognitionResult\n\n #### Parameters\n\n |--------------------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|\n | ` `*ink*` ` | Input to be recognized. |\n | ` `*context*` ` | See [DigitalInkRecognitionContext](../Classes/DigitalInkRecognitionContext.html) for details. |\n | ` `*completion*` ` | A callback for returning recognition candidates. See [DigitalInkRecognizerCallback](../Type-Definitions.html#/c:MLKDigitalInkRecognizer.h@T@MLKDigitalInkRecognizerCallback) for details. If nothing can be recognized, an empty list of candidates will be passed to the callback. |"]]
