Trey T
ac84b22977
Opening a book chapter froze the app in an infinite render loop. Root
cause: the books screens used the eager `NavigationLink { destination }`
form inside `List`/`LazyVStack`. That form keeps the destination view
structurally parented to the source row, so `BookReaderView`'s ScrollView
got trapped inside a `List` row — a row sizes to intrinsic height, a
ScrollView has none, so the two never converge and re-measure forever.
Switch the whole books navigation chain to value-based navigation:
- practiceHomeView, BookLibraryView, BookChapterListView use
NavigationLink(value:).
- PracticeView's NavigationStack declares the BooksRoute, Book, and
BookChapter destinations once, at the stack root (mixing eager and
value-based pushes in one path caused pushed screens to pop back).
- BookReaderView is built from just a BookChapter; it resolves its Book
by slug via @Query.
Also:
- BookChapter gains a stored paragraphCount so the chapter list no longer
decodes the full paragraph JSON on every render (bookDataVersion -> 6
to re-seed).
- BookSpeechController builds its AVSpeechSynthesizer lazily.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
45 lines
1.4 KiB
Swift
45 lines
1.4 KiB
Swift
import Foundation
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import SwiftData
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/// One chapter of a `Book`. Spanish + English paragraphs are stored as JSON-
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/// encoded `[String]` so SwiftData doesn't have to manage variable-length
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/// arrays directly.
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@Model
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public final class BookChapter {
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@Attribute(.unique) public var id: String = "" // "<bookSlug>-ch<number>"
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public var bookSlug: String = ""
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public var number: Int = 0
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public var title: String = ""
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/// Spanish paragraph count, stored at seed time so chapter lists can show
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/// it without decoding the full `paragraphsESJSON` blob on every render.
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public var paragraphCount: Int = 0
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public var paragraphsESJSON: Data = Data()
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public var paragraphsENJSON: Data = Data()
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public init(
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id: String,
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bookSlug: String,
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number: Int,
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title: String,
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paragraphCount: Int,
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paragraphsESJSON: Data,
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paragraphsENJSON: Data
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) {
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self.id = id
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self.bookSlug = bookSlug
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self.number = number
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self.title = title
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self.paragraphCount = paragraphCount
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self.paragraphsESJSON = paragraphsESJSON
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self.paragraphsENJSON = paragraphsENJSON
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}
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public func paragraphsES() -> [String] {
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(try? JSONDecoder().decode([String].self, from: paragraphsESJSON)) ?? []
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}
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public func paragraphsEN() -> [String] {
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(try? JSONDecoder().decode([String].self, from: paragraphsENJSON)) ?? []
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}
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}
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