React Native CLI - SDK.Dir

If you're building mobile apps using React Native, then you're probably familiar with the React Native CLI (Command Line Interface), a tool that allows you to run and build your React Native projects from the command line. But have you ever heard of SDK.Dir?

What is SDK.Dir?

In React Native, SDK.Dir is a variable that specifies the location of the Android SDK that is used for building and running your apps. This variable is set automatically when you run the react-native init command to create a new React Native project.

However, if you need to change the location of your Android SDK, or if you're working on a project that uses a custom Android SDK, you may need to update the value of SDK.Dir manually.

How to set SDK.Dir using the react-native CLI

You can set the value of SDK.Dir by using the react-native config command. Here's how:

# Set SDK.Dir to ~/Library/Android/sdk
$ react-native config set SDK.Dir ~/Library/Android/sdk

This command sets the value of SDK.Dir to ~/Library/Android/sdk (the default location of the Android SDK on macOS).

How to check the current value of SDK.Dir

You can check the current value of SDK.Dir by using the following command:

$ react-native config -get SDK.Dir

This command will return the current value of SDK.Dir in your React Native project.

Conclusion

In summary, SDK.Dir is an important variable in React Native that specifies the location of the Android SDK that is used for building and running your apps. By default, this variable is set automatically when you create a new React Native project using the react-native init command. However, if you need to change the location of your Android SDK, or if you're working on a project that uses a custom Android SDK, you may need to update the value of SDK.Dir manually using the react-native config command.