gitea/legado
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优化

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This commit is contained in:
gedoor 2022-01-06 14:15:31 +08:00
parent 558dfc5880
commit f6a98d1439
1 changed files with 10 additions and 6 deletions
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16
app/src/main/java/io/legado/app/model/localBook/TextFile.kt
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@ -49,7 +49,6 @@ class TextFile(private val book: Book) {
private fun analyze(pattern: Pattern?): ArrayList<BookChapter> {
val toc = arrayListOf<BookChapter>()
LocalBook.getBookInputStream(book).use { bis ->
val buffer = ByteArray(BUFFER_SIZE)
var blockContent: String
//加载章节
var curOffset: Long = 0
@ -57,18 +56,23 @@ class TextFile(private val book: Book) {
var blockPos = 0
//读取的长度
var length: Int
val buffer = ByteArray(BUFFER_SIZE)
var bufferStart = 0
//获取文件中的数据到buffer，直到没有数据为止
while (bis.read(buffer).also { length = it } > 0) {
while (bis.read(buffer, bufferStart, BUFFER_SIZE - bufferStart)
.also { length = it } > 0
) {
blockPos++
//如果存在Chapter
if (pattern != null) {
//将数据转换成String, 不能超过length
blockContent = String(buffer, 0, length, charset)
blockContent = String(buffer, 0, bufferStart + length, charset)
val lastN = blockContent.lastIndexOf("\n")
if (lastN > 0) {
blockContent = blockContent.substring(0, lastN)
val blockContentSize = blockContent.toByteArray(charset).size
bis.skip(-(length - blockContentSize).toLong())
buffer.copyInto(buffer, 0, blockContentSize - bufferStart, length)
bufferStart = length + bufferStart - blockContentSize
length = blockContentSize
}
//当前Block下使过的String的指针
@ -199,7 +203,6 @@ class TextFile(private val book: Book) {
System.runFinalization()
}
}
book.tocUrl = pattern?.pattern() ?: ""
}
for (i in toc.indices) {
val bean = toc[i]
@ -212,7 +215,8 @@ class TextFile(private val book: Book) {
System.gc()
System.runFinalization()
book.tocUrl = pattern?.pattern() ?: ""
book.save()
return toc
}