Background sticky concurrent mark sweep GC freed

Question

This is perfectly fine. It means that you're using memory, then its being freed by the GC. Its only a problem is either you go out of memory, or you see performance hiccups due to garbage collection. But its not anything you need to race to fix.

I have had the same issue. Your code will work, but if this hangs for too long, the app can get a App Not Responding error and close. It also defeats the purpose of using an AsyncTask.

The issue is that your AsyncTask contains a text view so it will block any other actions while executing. To fix this, make your AsyncTask static and pass it a reference to the Text view. Then store it in a WeakReference.

static class GetEmployee extends AsyncTask<Void,Void,String>{

    WeakReference<TextView> textUserWeakReference;
    WeakReference<TextView> textPassWeakReference;
    GetEmployee(TextView textUser, TextView textPass) {
        textUserWeakReference = new WeakReference<>(textUser);
        textPassWeakReference = new WeakReference<>(textPass);
    }

    @Override
    protected void onPreExecute() {
        super.onPreExecute();
   //     loading = ProgressDialog.show(MainActivity.this,"Fetching...","Wait...",false,false);
    }

    @Override
    protected void onPostExecute(String s) {
        super.onPostExecute(s);
  //      loading.dismiss();
        TextView textUser = textUserWeakReference.get();
        TextView textPass = textPassWeakReference.get();
        if(textView != null && textPass != null)
            showEmployee(s, textUser, textPass);
    }

    @Override
    protected String doInBackground(Void... params) {
        RequestHandler rh = new RequestHandler();
        String s = rh.sendGetRequestParam(DATA_URL,id);
        return s;
    }
}
private static void showEmployee(String json, TextView txtBoxUser, TextView txtBoxPassCode){
try {
    JSONObject jsonObject = new JSONObject(json);
    JSONArray result = jsonObject.getJSONArray(JSON_ARRAY);
    JSONObject c = result.getJSONObject(0);
    String name = c.getString(GET_BOXUSER);
    String desg = c.getString(GET_PASSCODE);

    txtBoxUser.setText(name);
    txtBoxPasscode.setText(desg);

} catch (JSONException e) {
    e.printStackTrace();
}
}