Thread runs after statements below are executed

Question

I am showing a countdown while Realm dataBase is loaded from the asset file

 SharedPreferences wmbPreference = PreferenceManager.getDefaultSharedPreferences(this);
            boolean isFirstRun = wmbPreference.getBoolean("FIRSTRUN", true);
            if (isFirstRun)
            {
                handler = new Handler();
                Runnable r = new Runnable() {
                    public void run() {
                        Intent intent=new Intent(context,FirstRun.class);
                        startActivity(intent);
                    }
                };
                handler.post(r);


                RealmConfiguration config = new RealmConfiguration.Builder(context)
                        .name(Realm.DEFAULT_REALM_NAME)
                        .migration(new in.webic.longevity.longevity.Word())
                        .assetFile(context, "Default.realm")
                        .schemaVersion(0)
                        .build();

                realm = realm.getInstance(config);
                realm.close();

                SharedPreferences.Editor editor = wmbPreference.edit();
                editor.putBoolean("FIRSTRUN", false);
                editor.commit();

            }

Problem:

countdown should be show, rather a blank screen while asset file is copying as default database

Yet activity starts after few seconds(which is in the thread) taken by the code below to load the asset file,
Is there a better way to show countdown while Realm configuration is setup.
any help would be appreciated
Thanks

Answer 1

If you want to show a countdown, you must to copy the file manually.

• How to copy file from assets to internal storage: Android - Copy assets to internal storage
• How to update a progress or countdown: Updating the progress dialog on an uploading process
• How to copy in correct Realm path: https://stackoverflow.com/a/36324183/2826279

And then, run the slow code in AsyncTask.

Like this:

public class LauncherActivity extends Activity {

     public void onCreate(...) {
        // init view

        new SlowTask().execute();
     }


     class SlowTask extends AsyncTask<Void, Void, Void>{

          protected Void doInBackground(Void... params) {

              // realm slow code here
              return null;
          }

          protected void onPostExecute(Void result) {
             // start your next activity here
          }
     }
}