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Code Issues Releases Wiki Activity

Load entire chapters at a time to scroll through

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Seems very slow, lots of optimization that needs to be done
This commit is contained in:
Bradlee Speice 2014-11-26 21:55:07 -05:00
parent 989e3e8023
commit 23f992505c
1 changed files with 24 additions and 10 deletions
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34
app/src/main/kotlin/org/bspeice/minimalbible/activity/viewer/BookAdapter.kt
View File

@ -29,19 +29,29 @@ class BookAdapter(val b: Book) : RecyclerView.Adapter<PassageView>() {
data class ChapterInfo(val book: Book, val chapter: Int, val bibleBook: BibleBook,
val vStart: Int, val vEnd: Int)
/**
* A list of all ChapterInfo objects needed for displaying a book
* The for expression probably looks a bit nicer:
* for {
* book <- bookList
* chapter <- 1..versification.getLastChapter(currentBook)
* } yield ChapterInfo(...)
*
* Also note that getLastVerse() returns the number of verses in a chapter,
* so we build the actual last verse by adding getFirstVerse and getLastVerse
*/
// TODO: Lazy compute values needed for this list
val chapterList: List<ChapterInfo> = bookList.flatMap {
val currentBook = it
(1..versification.getLastChapter(currentBook)).map { chapter ->
Log.d("BookAdapter", "Building info for chapter ${chapter}")
ChapterInfo(b, chapter, currentBook,
versification.getFirstVerse(currentBook, chapter),
versification.getLastVerse(currentBook, chapter))
(1..versification.getLastChapter(currentBook)).map {
val firstVerse = versification.getFirstVerse(currentBook, it)
val verseCount = versification.getLastVerse(currentBook, it)
ChapterInfo(b, it, currentBook, firstVerse, firstVerse + verseCount)
}
}
/**
* I'm not sure what the position argument actually is,
* I'm not sure what the position argument actually represents,
* but on initial load it doesn't change
*/
override fun onCreateViewHolder(parent: ViewGroup?,
@ -66,11 +76,15 @@ class BookAdapter(val b: Book) : RecyclerView.Adapter<PassageView>() {
}
class PassageView(val v: TextView) : RecyclerView.ViewHolder(v) {
val parser = OsisParser()
fun getVerseText(b: Book, verseRange: Progression<Int>) =
verseRange.map { parser.getVerse(b, it).content }
fun reduceText(verses: List<String>) = verses.join(" ")
// Uses functional style, but those parentheses man... you'd think I was writing LISP
fun bind(info: ChapterInfo) {
val o = OsisParser()
val string = o.getVerse(info.book, info.vEnd).content
Log.d("PassageView", "Book: ${info.bibleBook}, Chapter: ${info.chapter}")
v setText string
v.setText(reduceText(getVerseText(info.book, info.vStart..info.vEnd)))
}
}