We can copy database from assets folde by class CopyAssetDatabaseOpenHelper(private val context: Context) { companion object { private val DB_NAME = "dbName.db" fun openDatabase(): SQLiteDatabase { checkDB?.close() } val buffer = ByteArray(1024) currentDB.flush() }
}
val dbFile = context.getDatabasePath(DB_NAME)
if (!dbFile.exists()) {
try {
val checkDB = context.openOrCreateDatabase(DB_NAME, Context.MODE_PRIVATE,null)
copyDatabase(dbFile)
} catch (e: IOException) {
throw RuntimeException("Error creating source database", e)
}
return SQLiteDatabase.openDatabase(dbFile.path, null, SQLiteDatabase.OPEN_READWRITE)
}
private fun copyDatabase(context:Context) {
val dbFile = context.getDatabasePath("logicaldb")
val assetdb = context.assets.open("logicaldb")
val currentDB = FileOutputStream(dbFile)
while (assetdb.read(buffer) > 0) {
currentDB.write(buffer)
Log.d("#DB", "Copying "+buffer.toString())
}
currentDB.close()
assetdb.close()
}
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