Xcode 11如何在Assistant Editor内打开Jump to definition？

I totally get this frustration—Xcode 11 changed the default behavior of Jump to Definition, and it’s been a headache for folks who relied on the old Assistant Editor workflow. Here are a few reliable ways to get that functionality back:

Quick One-Time Actions #

• Use modifier keys while clicking: Hold down Option + Shift and click the symbol/method you want to jump to. This will immediately open its definition in the Assistant Editor, no extra setup needed.
• Right-click with modifier: If you prefer using the context menu, hold Option while right-clicking the symbol. The menu option will switch from "Jump to Definition" to Jump to Definition in Assistant—select that, and it’ll open in the Assistant pane.

Set a Custom Shortcut for Permanent Workflow #

If you want a dedicated shortcut to always jump to the Assistant Editor, you can set one up in Xcode’s key bindings:

1. Open Xcode Preferences with Cmd + ,
2. Go to the Key Bindings tab
3. In the search bar, type Jump to Definition in Assistant
4. Double-click the "Key" field next to the command, then press your preferred shortcut combo (e.g., Cmd + Option + J—just make sure it doesn’t conflict with existing shortcuts)
5. Close Preferences, and now your new shortcut will jump directly to the definition in the Assistant Editor every time.

Note: As of Xcode 11 and later, there’s no built-in setting to change the default left-click Jump to Definition behavior to use the Assistant Editor. These workarounds are the most reliable ways to replicate the older version’s functionality.

内容的提问来源于stack exchange，提问作者Raymond