How to wait until file copy from system directory to external storage with root access

Question

i have file from next path: /data/data/com.google.chrome/examplefile.txt , and i wanna copy the file by path: /sdcard/examplefile.txt and perform operations with him, but file size: 7 MB, and it takes time. I wanna copy the file wait until him copies and perform operations with him.

I have superuser access (Root), and to copy file from /data/data dir need root access.

Answer 1

Use an AsyncTask to do the job on background:

public class CopyFileTask extends AsyncTask <Void, Void, Void> {

    File file;

    public CopyFileTask () {
        file = null;
    }

    @Override
    protected Void doInBackground(Void... voids) {
        //Your code to copy the file here
        file = copyFileMethod();
        return null;
    }

    @Override
    protected void onPostExecute(Void aVoid) {
        //If the file is not null, then that means you copied it
        if(file != null ){
        //Perform here the rest of the operations
        }
    }
}