SwiftUI Text Gotcha

Author: clive819

_posts/2025-06-29-swiftui-text-fixedsize-gotcha.md

@@ -0,0 +1,27 @@
+---
+title: 'SwiftUI Text `fixedSize` Gotcha'
+author: 'Clive Liu'
+layout: post
+tags: [Swift, SwiftUI]
+---
+
+The `fixedSize` modifier in SwiftUI forces a view to adopt its ideal size, preventing it from being compressed or truncated.
+
+For example, you can use it to make sure a long text isn’t cut off:
+
+```swift
+Text(aVeryLongString)
+    .fixedSize(horizontal: false, vertical: true)
+```
+
+However, there’s a subtle gotcha: the `lineLimit` modifier takes precedence over `fixedSize`. If a `lineLimit` is applied anywhere in the view hierarchy and affects the text view, it will still truncate the text — even if `fixedSize` is used.
+
+To avoid this, make sure no unintended `lineLimit` is affecting your text. A simple fix is to explicitly set `.lineLimit(nil)` on the `Text` view alongside `fixedSize`:
+
+```swift
+Text(aVeryLongString)
+    .lineLimit(nil)
+    .fixedSize(horizontal: false, vertical: true)
+```
+
+This ensures the text can grow vertically to fit its content as expected.