readFile static method
Read the txt file inside the extracted zip file
Implementation
static Future<List<String>> readFile(String fileName) async {
// If the whatsapp chat is shared with media, the unzipped folder will contain the media files,
// so we need to read the txt file from the unzipped folder and list all the images and do something
// with them
String path = '${(await getTemporaryDirectory()).path}/unzipped/$fileName';
File file = File(path);
List<String> lines = await file.readAsLines();
await _deleteDir(Directory("${(await getTemporaryDirectory()).path}/unzipped"));
return lines;
}