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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150
|
第
8
章
现在该模型将位于你的项目中并可用于推理。最后一步是完成用户界面逻辑
—
然后你
就可以开始了！
8.4.7
第
7
步：添加
UI
逻辑
之前，你创建了包含 UI 描述的故事板并开始编辑包含 UI 逻辑的
ViewController.swift
文
件。由于大部分推理工作现已被
ModelParser
类完成了，因此 UI 逻辑应该很轻。
首先添加一个私有变量来声明
ModelParser
类的一个实例：
private var modelParser: ModelParser? =
ModelParser(modelFileInfo: ModelFile.modelInfo)
之前，你在名为
btnGo
的按钮上创建了一个动作。这将在用户触摸按钮时调用。更新它
以在用户执行该动作时执行名为
doInference
的函数：
@IBAction func btnGo(_ sender: Any) {
doInference()
}
接下来，你将构建
doInference
函数：
private func doInference() {
用户输入数据的文本字段称为
txtUserData
。读取这个值，如果它是空的，只需将结果
设置为 0.00 并且不会干扰任何推理：
guard let text = txtUserData.text, text.count > 0 else {
txtResult.text = "0.00"
return
}
否则，将其转换为浮点数。如果失败，退出函数：
guard let ...
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I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
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