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A React Native Example which using Digital Ink Recognition and Text Recognition to detect handraw text

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LeXuanKhanh/RNDetectHandDrawTextExample

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A React Native Example which using Digital Ink Recognition and Text Recognition to detect handraw text

Required React Native Library:

  • @benjeau/react-native-draw: drawing view
  • React-native-view-shot: Capture drawing view to image for Text Recogniton (not Digital Ink Recognition)

Step 1: Start the Metro Server

First, you will need to start Metro, the JavaScript bundler that ships with React Native.

To start Metro, run the following command from the root of your React Native project:

# using npm
npm start

# OR using Yarn
yarn start

Step 2: Start your Application

Let Metro Bundler run in its own terminal. Open a new terminal from the root of your React Native project. Run the following command to start your Android or iOS app:

For Android

# using npm
npm run android

# OR using Yarn
yarn android

For iOS

Due to the Turbo Modules's difficulty of writing in Swift, for now we have to add Swift files by hand

Run pod install

Open ios/RNDetectHandDrawTextExample.xcworkspace in Project Stucture, go to Pods/Development Pods/rn-ml-kit-text-recognition and expand it like this. At first, it will not have Swift file

Right click on ios -> Add file to Pods -> Choose the Swift file (TextRecognition.swift).

Xcode will promp whether you want to add bridging header, accept it

Remember to check its target member ship if in belong to rn-ml-kit-text-recognition. It's on the right corner pannel when you are at TextRecognition.swift file

# using npm
npm run ios

# OR using Yarn
yarn ios

If everything is set up correctly, you should see your new app running in your Android Emulator or iOS Simulator shortly provided you have set up your emulator/simulator correctly.

This is one way to run your app — you can also run it directly from within Android Studio and Xcode respectively.

Step 3: Modifying your App

Now that you have successfully run the app, let's modify it.

  1. Open App.tsx in your text editor of choice and edit some lines.

  2. For Android: Press the R key twice or select "Reload" from the Developer Menu (Ctrl + M (on Window and Linux) or Cmd ⌘ + M (on macOS)) to see your changes!

    For iOS: Hit Cmd ⌘ + R in your iOS Simulator to reload the app and see your changes!

Congratulations! 🎉

You've successfully run and modified your React Native App. 🥳

Now what?

Troubleshooting

If you can't get this to work, see the Troubleshooting page.

Learn More

To learn more about React Native, take a look at the following resources:

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