Demo Swift CoreML Vision API

This demonstration shows:

• Swift programming language with Apple Xcode iOS

• How to create a view that shows "Hello World" on the screen.

To use this project:

• You can clone this repo.

• Or you can create the project yourself by using this README that explains how to do it.

ViewController

The most important file is ViewController.swift

Create the project

Launch Xcode.

Choose "File" → "New" → "Project".

You see the dialog "Choose a template for your new project".

• Choose the "iOS" radio button.

• Choose the "Single View Application" icon.

• Tap the button "Next".

You see the dialog "Choose options for your new project".

• For "Product Name", type "Demo Swift CoreML Vision API".

• For "Organization Name", type anything you want. Typically this is your company's name, or team's name, or similiar. For example, "Example Company".

• For "Organization Identifier", type anything you want. Typically this is your company's reverse domain name. For example, "com.example".

• Tap the button "Next".

You see the file chooser.

• Choose where to save your project.

• Tap the button "Create".

• Xcode creates the project.

Sign the project

If Xcode shows a "Signing" area with a "Status" alert icon, here's how to solve it.

• Xcode may show a message such as "Signing for "Demo Swift Hello World" requires a development team. Select a development team in the project editor."

• In the same "Signing" section, choose the "Team" dropdown, and choose your Apple ID.

• If there's no Apple ID, then you need to add yours: Xcode → Preferences → Accounts → the "+" button → Add Apple ID

Run the project

Run the project for the first time.

• Xcode → Product → Run

• This is simply to verify that the project runs so far.

The Simulator launches.

• The Simulator shows a blank screen.

• Quit the Simulator and go back to using Xcode.

Create the project

Use this: https://medium.freecodecamp.org/ios-coreml-vision-image-recognition-3619cf319d0b

Delete the storyboard:

• Delete the file "Main.storyboard".

• Select the file "Info.plist".

• The main area shows "Information Property List".

• One entry is "Main storyboard file base name" and set to "Main".

• Delete the entry.

Add frameworks for "AVFoundation", "CoreML", "Vision":

• In the project navigator, select your project.

• Select your target.

• Select the "Build Phases" tab.

• Open "Link Binaries With Libraries" expander.

• Click the + button.

• Select your framework.

• (optional) Drag and drop the added framework to the "Frameworks" group.

Add the machine learning model:

• Download the model.

• Add the model to your Xcode project by dragging the model into the project navigator.

• You can see information about the model — including the model type and its expected inputs and outputs — by opening the model in Xcode.

• Xcode also uses information about the model’s inputs and outputs to automatically generate a custom programmatic interface to the model, which you use to interact with the model in your code. For a model named "Foo" with a file name "Foo.mlmodel", Xcode generates interfaces to represent the model ("Foo"), the model’s inputs ("FooInput"), and the model’s output ("FooOutput").

Run

Run the project.

• Xcode → Product → Run

The app launches.

• Congratulations! You're successful!

Tracking

• Package: demoswiftcoremlvisionapi
• Version: 1.0.0
• Created: 2018-03-29
• Updated: 2018-04-02
  
• License: BSD, GPL, MIT
• Contact: Joel Parker Henderson (http://joelparkerhenderson.com)