Hey there! Let's break this down for your React Native cross-platform project—since you’re coming from ReactJS desktop and working with a designer who knows HTML/CSS/Photoshop, I’ll walk you through the best deliverables and tools to make this collaboration smooth.

Since React Native uses a different styling system than web (no HTML, and styles are written in JS with StyleSheet), HTML/CSS files aren’t the most direct deliverable, but they can still serve as useful references. Here’s what your designer should prioritize:

• Layered Photoshop Source Files: Ensure all UI elements are properly grouped and layered—this makes extracting assets or adjusting designs later much easier.
• Annotated Design Specs: A clear set of details (either in a document or directly on the design) including:
  • Color codes (hex/RGB/RGBA, since RN uses these values directly)
  • Font details (name, sizes, weights, line heights—RN uses fontFamily, fontSize, fontWeight properties)
  • Spacing rules (consistent padding/margin values, component sizing standards)
• Multi-Resolution Assets: Exported images tailored for both Android (mdpi/hdpi/xhdpi/xxhdpi/xxxhdpi) and iOS (@1x/@2x/@3x) with consistent naming (e.g., btn_primary_xxhdpi.png).

Absolutely—Zeplin is actually a fantastic fit for React Native projects, even better than some web-focused tools in many cases. Here’s why:

• It auto-generates React Native-style code snippets (e.g., { color: '#2196F3', fontSize: 16, paddingVertical: 8 }) directly from design elements, saving you time translating CSS to RN styles.
• It handles multi-resolution asset exports automatically, so your designer doesn’t have to manually create 5+ versions of each image.
• It lets your team comment directly on design elements, reducing back-and-forth about ambiguous specs.
• It integrates with Photoshop via a plugin, so your designer can sync their work to Zeplin without extra hassle.

1. Design Phase: Your designer finishes the UI in Photoshop, uses the Zeplin plugin to sync the file, then adds any missing annotations (like specific spacing or interaction notes) directly in Zeplin.
2. Delivery: The designer shares:
   • Access to the Zeplin project (so you can pull assets and code snippets on demand)
   • The original Photoshop source file (for future tweaks or asset extraction)
   • A concise style guide (e.g., "all buttons use 8px radius, primary color is #2196F3") to keep consistency across components.
3. Development Phase: Pull assets from Zeplin directly into your RN project’s respective folders (Android’s drawable-* directories, iOS’s Images.xcassets), and adapt Zeplin’s code snippets into your StyleSheet definitions.

If your team wants to skip Zeplin for now, here’s a solid backup plan:

• Have your designer use a Photoshop annotation tool (like MarkMan) to add color, size, and spacing labels directly to the design files.
• They can manually export multi-resolution assets and organize them into Android/iOS-specific folders.
• They can provide a CSS file as a reference—you’ll just need to translate web CSS properties to RN’s camelCase style (e.g., background-color → backgroundColor, margin: 10px → margin: 10 since RN uses density-independent pixels).

• Remember that RN doesn’t support all web CSS properties (e.g., no box-shadow—use shadowColor, shadowOffset, shadowOpacity instead). Zeplin will usually translate these correctly, but keep an eye out if you’re working from raw CSS.
• Stick to consistent naming conventions for assets and styles—this makes your codebase far easier to maintain.
• Align with your designer on responsive behavior early (e.g., how components resize on different screen sizes) since RN handles responsiveness differently than web.

内容的提问来源于stack exchange，提问作者gintoki27