copyFile method
Copies assetDicDir/fileName
to dicdir/fileName
if it does not already
exist
Implementation
Future<void> copyFile(String dicdir, String assetDicDir, String fileName) async
{
if (FileSystemEntity.typeSync('$dicdir/$fileName') ==
FileSystemEntityType.notFound) {
var data = (await rootBundle.load('$assetDicDir/$fileName'));
var buffer = data.buffer;
var bytes = buffer.asUint8List(data.offsetInBytes, data.lengthInBytes);
new File('$dicdir/$fileName').writeAsBytesSync(bytes);
}
}