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sublist songs arraylists if theres too many items

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tibbi 2017-04-07 23:30:32 +02:00
parent 3250790f76
commit aa33b7276e
1 changed files with 38 additions and 27 deletions
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65
app/src/main/kotlin/com/simplemobiletools/musicplayer/helpers/DBHelper.kt
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@ -165,14 +165,18 @@ class DBHelper private constructor(val context: Context) : SQLiteOpenHelper(cont
}
fun removeSongsFromPlaylist(paths: ArrayList<String>, playlistId: Int = context.config.currentPlaylist) {
val questionMarks = getQuestionMarks(paths.size)
var selection = "$COL_PATH IN ($questionMarks)"
if (playlistId != -1) {
selection += " AND $COL_PLAYLIST_ID = $playlistId"
}
val selectionArgs = paths.toTypedArray()
val SPLICE_SIZE = 200
for (i in 0..paths.size - 1 step SPLICE_SIZE) {
val curPaths = paths.subList(i, Math.min(i + SPLICE_SIZE, paths.size))
val questionMarks = getQuestionMarks(curPaths.size)
var selection = "$COL_PATH IN ($questionMarks)"
if (playlistId != -1) {
selection += " AND $COL_PLAYLIST_ID = $playlistId"
}
val selectionArgs = curPaths.toTypedArray()
mDb.delete(TABLE_NAME_SONGS, selection, selectionArgs)
mDb.delete(TABLE_NAME_SONGS, selection, selectionArgs)
}
}
fun getPlaylistSongPaths(playlistId: Int): ArrayList<String> {
@ -200,30 +204,37 @@ class DBHelper private constructor(val context: Context) : SQLiteOpenHelper(cont
}
fun getSongs(): ArrayList<Song> {
val SPLICE_SIZE = 200
val paths = getPlaylistSongPaths(context.config.currentPlaylist)
val songs = ArrayList<Song>(paths.size)
val uri = MediaStore.Audio.Media.EXTERNAL_CONTENT_URI
val columns = arrayOf(MediaStore.Audio.Media._ID, MediaStore.Audio.Media.TITLE, MediaStore.Audio.Media.ARTIST, MediaStore.Audio.Media.DURATION, MediaStore.Audio.Media.DATA)
val questionMarks = getQuestionMarks(paths.size)
val selection = "${MediaStore.Audio.Media.DATA} IN ($questionMarks)"
val selectionArgs = paths.toTypedArray()
if (paths.isEmpty())
return songs
var cursor: Cursor? = null
try {
cursor = context.contentResolver.query(uri, columns, selection, selectionArgs, null)
if (cursor != null && cursor.moveToFirst()) {
do {
val id = cursor.getLongValue(MediaStore.Audio.Media._ID)
val title = cursor.getStringValue(MediaStore.Audio.Media.TITLE)
val artist = cursor.getStringValue(MediaStore.Audio.Media.ARTIST)
val path = cursor.getStringValue(MediaStore.Audio.Media.DATA)
val duration = cursor.getIntValue(MediaStore.Audio.Media.DURATION) / 1000
val song = Song(id, title, artist, path, duration)
songs.add(song)
} while (cursor.moveToNext())
for (i in 0..paths.size - 1 step SPLICE_SIZE) {
val curPaths = paths.subList(i, Math.min(i + SPLICE_SIZE, paths.size))
val uri = MediaStore.Audio.Media.EXTERNAL_CONTENT_URI
val columns = arrayOf(MediaStore.Audio.Media._ID, MediaStore.Audio.Media.TITLE, MediaStore.Audio.Media.ARTIST, MediaStore.Audio.Media.DURATION, MediaStore.Audio.Media.DATA)
val questionMarks = getQuestionMarks(curPaths.size)
val selection = "${MediaStore.Audio.Media.DATA} IN ($questionMarks)"
val selectionArgs = curPaths.toTypedArray()
var cursor: Cursor? = null
try {
cursor = context.contentResolver.query(uri, columns, selection, selectionArgs, null)
if (cursor != null && cursor.moveToFirst()) {
do {
val id = cursor.getLongValue(MediaStore.Audio.Media._ID)
val title = cursor.getStringValue(MediaStore.Audio.Media.TITLE)
val artist = cursor.getStringValue(MediaStore.Audio.Media.ARTIST)
val path = cursor.getStringValue(MediaStore.Audio.Media.DATA)
val duration = cursor.getIntValue(MediaStore.Audio.Media.DURATION) / 1000
val song = Song(id, title, artist, path, duration)
songs.add(song)
} while (cursor.moveToNext())
}
} finally {
cursor?.close()
}
} finally {
cursor?.close()
}
return songs
}