Flutter - include a zip file with an app and delete it at after processing (can I delete Assets at runtime?)

Question

I want to include a zip file in my flutter app. When the user runs the app for the first time, I will process that zip file (saving the contents using getApplicationDocumentsDirectory() for example) and then I will want to delete the zip file...to save space on the user's machine.

Is it possible to delete an asset at runtime?

Or is there another way to achieve including a file in the installation and then deleting it at runtime?

Answer 1

Yes, this is straightforward. In your first widget which is run at startup you could detect if the file exists and then delete with :

File file = new File((await getApplicationDocumentsDirectory()).path + "myfile.zip");
if (file.existsSync()) {
  file.delete();
}

Or you could use preferences to store a flag when it is deleted (and check the flag at startup).