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🛠️ Optimize loading in Browse

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* Sped up loading in Browse using coroutines

Part-of: #91
This commit is contained in:
Acclorite 2025-01-17 14:38:49 +02:00
parent cf7e85c267
commit 7dd1a496de
1 changed files with 27 additions and 12 deletions
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39
app/src/main/java/ua/acclorite/book_story/data/repository/FileSystemRepositoryImpl.kt
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@ -7,6 +7,10 @@ import android.os.Environment
import android.os.storage.StorageManager
import android.util.Log
import kotlinx.coroutines.Dispatchers
import kotlinx.coroutines.async
import kotlinx.coroutines.awaitAll
import kotlinx.coroutines.sync.Semaphore
import kotlinx.coroutines.sync.withPermit
import kotlinx.coroutines.withContext
import ua.acclorite.book_story.R
import ua.acclorite.book_story.data.local.room.BookDao
@ -77,17 +81,28 @@ class FileSystemRepositoryImpl @Inject constructor(
/**
* Get all verified files from directory (root).
*/
fun File.getFilesFromDirectory(): List<SelectableFile> {
return walk().mapNotNull {
if (!it.isValid()) return@mapNotNull null
SelectableFile(
name = it.name,
path = it.path,
size = it.length(),
lastModified = it.lastModified(),
selected = false
)
}.toList()
suspend fun File.getFilesFromDirectory(): List<SelectableFile> {
return withContext(Dispatchers.IO) {
val semaphore = Semaphore(5)
walk()
.map { file ->
async {
semaphore.withPermit {
if (!file.isValid()) return@async null
SelectableFile(
name = file.name,
path = file.path,
size = file.length(),
lastModified = file.lastModified(),
selected = false
)
}
}
}
.toList()
.awaitAll()
.filterNotNull()
}
}
/**
@ -133,7 +148,7 @@ class FileSystemRepositoryImpl @Inject constructor(
val files = mutableListOf<SelectableFile>()
for (volume in storageDirectories) {
files.addAll(withContext(Dispatchers.IO) { volume.getFilesFromDirectory() })
files.addAll(volume.getFilesFromDirectory())
}
Log.i(GET_FILES_FROM_DEVICE, "Successfully got all matching files.")