expo-font
Version:
Load fonts at runtime and use them in React Native components.
33 lines • 1.27 kB
JavaScript
import { Asset } from 'expo-asset';
import { CodedError } from 'expo-modules-core';
import ExpoFontLoader from './ExpoFontLoader';
export function getAssetForSource(source) {
if (source instanceof Asset) {
return source;
}
if (typeof source === 'string') {
return Asset.fromURI(source);
}
else if (typeof source === 'number') {
return Asset.fromModule(source);
}
else if (typeof source === 'object' && typeof source.uri !== 'undefined') {
return getAssetForSource(source.uri);
}
// @ts-ignore Error: Type 'string' is not assignable to type 'Asset'
// We can't have a string here, we would have thrown an error if !isWeb
// or returned Asset.fromModule if isWeb.
return source;
}
export async function loadSingleFontAsync(name, input) {
const asset = input;
if (!asset.downloadAsync) {
throw new CodedError(`ERR_FONT_SOURCE`, '`loadSingleFontAsync` expected resource of type `Asset` from expo-asset on native');
}
await asset.downloadAsync();
if (!asset.downloaded) {
throw new CodedError(`ERR_DOWNLOAD`, `Failed to download asset for font "${name}"`);
}
await ExpoFontLoader.loadAsync(name, asset.localUri);
}
//# sourceMappingURL=FontLoader.js.map