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expo-text-measure

v0.0.1

Published

Synchronous native text measurement for React Native (CoreText / Android Paint)

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Links

Git

Maintainers

ambarliambarli

Keywords

Readme

expo-text-measure

Synchronous native text measurement for React Native via Expo Modules.

What it does

Provides a single synchronous function measureText(text, fontSize, fontFamily) that returns the text width using the same engine RN's <Text> uses for rendering:

  • iOS: NSString.size(withAttributes:) → CoreText
  • Android: Paint.measureText()

Zero measurement drift — what you measure is exactly what renders.

Install

npm install expo-text-measure

Requires native rebuild (expo prebuild or pod install).

Usage

import NativeTextMeasure from 'expo-text-measure'

// Synchronous — runs on JS thread via JSI
const width = NativeTextMeasure.measureText('Hello world', 16, 'System')