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René Schober
2026-03-13 06:23:06 +01:00
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---
title: Use expo-image for Optimized Images
impact: HIGH
impactDescription: memory efficiency, caching, blurhash placeholders, progressive loading
tags: images, performance, expo-image, ui
---
## Use expo-image for Optimized Images
Use `expo-image` instead of React Native's `Image`. It provides memory-efficient caching, blurhash placeholders, progressive loading, and better performance for lists.
**Incorrect (React Native Image):**
```tsx
import { Image } from "react-native";
function Avatar({ url }: { url: string }) {
return <Image source={{ uri: url }} style={styles.avatar} />;
}
```
**Correct (expo-image):**
```tsx
import { Image } from "expo-image";
function Avatar({ url }: { url: string }) {
return <Image source={{ uri: url }} style={styles.avatar} />;
}
```
**With blurhash placeholder:**
```tsx
<Image
source={{ uri: url }}
placeholder={{ blurhash: "LGF5]+Yk^6#M@-5c,1J5@[or[Q6." }}
contentFit="cover"
transition={200}
style={styles.image}
/>
```
**With priority and caching:**
```tsx
<Image source={{ uri: url }} priority="high" cachePolicy="memory-disk" style={styles.hero} />
```
**Key props:**
- `placeholder` — Blurhash or thumbnail while loading
- `contentFit``cover`, `contain`, `fill`, `scale-down`
- `transition` — Fade-in duration (ms)
- `priority``low`, `normal`, `high`
- `cachePolicy``memory`, `disk`, `memory-disk`, `none`
- `recyclingKey` — Unique key for list recycling
For cross-platform (web + native), use `SolitoImage` from `solito/image` which uses `expo-image` under the hood.
Reference: [expo-image](https://docs.expo.dev/versions/latest/sdk/image/)