January 2023
Intermediate to advanced
288 pages
6h 6m
Chinese
Content preview from 移动端AI与ML应用开发：基于iOS和Android
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<com.odmlbook.digitalinktest.CustomDrawingSurface
android:id="@+id/customDrawingSurface"
android:layout_width="match_parent"
android:layout_height="300dp" />
5.2.3
使用
ML Kit
解析墨迹
在上一节中，你看到了用户可以在其上书写的自定义绘图平面，并且他们的笔画被捕获
到
Ink
对象中。然后可以将此
Ink
对象与 ML Kit 一起使用，将笔画解释为文本。执行
此操作的步骤如下：
1.
使用你要使用的模型的规范来初始化模型标识符对象，例如，模型将要识别的语言。
2.
从模型标识符构建对模型的引用。
3.
使用远程模型管理器对象下载模型。
4.
从模型创建一个识别器对象。
5.
将墨迹传递给识别器并解析返回的结果。
因此，在承载生成墨迹的自定义绘图平面的活动中，你需要执行所有这些步骤。让我们
来看看其在实践中的情况。
首先，
initializeRecognition()
函数将创建
DigitalInkRecognitionModelIdentifier
的实例并使用它来构建对模型的引用，然后它将下载如下内容：
fun initializeRecognition(){
val modelIdentifier: DigitalInkRecognitionModelIdentifier? =
DigitalInkRecognitionModelIdentifier.fromLanguageTag("en-US") ...
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