file static method
Sends a file to other apps.
Implementation
static Future<void> file(
String title, String name, List<int> bytes, String mimeType, {String text = ''}) async {
Map argsMap = <String, String>{
'title': '$title',
'name': '$name',
'mimeType': '$mimeType',
'text': '$text'
};
final tempDir = await getTemporaryDirectory();
final file = await new File('${tempDir.path}/$name').create();
await file.writeAsBytes(bytes);
_channel.invokeMethod('file', argsMap);
}