NativeScript 9.1 Released → V8 14.9, Vite 8 HMR, built for rapid agentic visual iteration
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Generate types for iOS ​

bash
ns typings ios

This will generate the following folder structure typings/ios/arm64

Generate types for Android ​

For Android run:

bash
ns typings android --jar <path to a jar>
# or
ns typings android --aar <path to an aar>

You can also generate typings for an Android package (Maven):

bash
ns typings android <package-name>

For instance:

bash
ns typings android "com.google.android.gms:play-services-tasks"

Generate types for Windows ​

Experimental

The Windows platform is experimental. See Developing for Windows.

On a Windows machine, run:

bash
ns typings windows

This generates typings for the Windows.* WinRT APIs into typings/windows/, one .d.ts file per namespace group. If the project hasn't been prepared for Windows yet, the CLI runs ns prepare windows first to get the typings generator from @nativescript/windows.

The following options control what is generated:

OptionDescription
--root <namespace>The root namespace to generate typings for, for example Microsoft for WinUI 3. Defaults to Windows.
--roots <ns1,ns2,...>A comma separated list of namespaces, for example Windows.Foundation,Windows.Storage.
--input <path>Generate typings for a .winmd file (WinRT component) or a .dll/.csproj (.NET library).
--lib <path>An additional .winmd, .dll, .nupkg or folder used to resolve referenced types. Can be repeated.
--libs <a,b,...>A comma separated list of --lib paths.

For instance, to generate typings for your own C++/WinRT component:

bash
ns typings windows --input App_Resources/Windows/libs/x64/MyCompany.Native.winmd

Custom code ​

  1. Reference the generated types in references.d.ts
  2. You can now code against the platform native APIs (strongly typed). For various examples on how to interact with native APIs in JavaScript/TypeScript, visit the Subclassing, iOS Marshalling, Android Marshalling and Windows Marshalling pages.

Additional Resources ​

Next
Extending Native Classes