Content-sized Flutter views in native parents

Historically an embedded Flutter view needed a fixed size from its native parent. That made Flutter-inside-UIScrollView or RecyclerView painful.

Enable content sizing

• iOS: FlutterViewController.isAutoResizable = true
• Android: set width/height of FlutterView to content_wrap and enable content sizing in the manifest/docs flow.

Root widget constraints

Your Flutter root must tolerate unbounded height (or width). Avoid a top-level ListView that expects a bounded viewport; prefer intrinsic-height layouts or a single-column with shrink-wrapped content.

Pitfalls

• Animations that assume a phone-sized viewport can overflow inside a native list cell.
• Measure jank: multiple embedded Flutter engines/views still cost memory.
• Coordinate with keyboard insets from the native side.