android - Is onResume() called before onActivityResult()?

Question

Here is how my app is laid out:

1. onResume() user is prompted to login
2. If user logs in, he can continue using the app 3. If the user logs out at any time, I want to prompt login again

How can I achieve this?

Here is my MainActivity:

@Override
    protected void onResume(){
        super.onResume();

        isLoggedIn = prefs.getBoolean("isLoggedIn", false);

        if(!isLoggedIn){
            showLoginActivity();
        }
    }

Here is my LoginActivity:

@Override
        protected void onPostExecute(JSONObject json) {
            String authorized = "200";
            String unauthorized = "401";
            String notfound = "404";
            String status = new String();

            try {
                // Get the messages array
                JSONObject response = json.getJSONObject("response");
                status = response.getString("status");

                if(status.equals(authorized)){
                    Toast.makeText(getApplicationContext(), "You have been logged into the app!",Toast.LENGTH_SHORT).show();
                    prefs.edit().putBoolean("isLoggedIn",true);

                    setResult(RESULT_OK, getIntent());
                    finish();
                }
                else if (status.equals(unauthorized)){
                    Toast.makeText(getApplicationContext(), "The username and password you provided are incorrect!",Toast.LENGTH_SHORT).show();
                     prefs.edit().putBoolean("isLoggedIn",true);
                }
                else if(status.equals(notfound)){
                    Toast.makeText(getApplicationContext(), "Not found",Toast.LENGTH_SHORT).show();
                     prefs.edit().putBoolean("isLoggedIn",true);
                }
            } catch (JSONException e) {
                System.out.println(e);
            } catch (NullPointerException e) {
                System.out.println(e);
            }
        }
    }

After the user has successfully logged in:

protected void onActivityResult(int requestCode, int resultCode, Intent data) {
        if (resultCode == RESULT_OK) {
            Toast.makeText(getApplicationContext(), "BOOM SHAKA LAKA!",Toast.LENGTH_SHORT).show();
        }
    }

The problem is, onResume() is called before onActivityResult() so when the user has successfully logged in, my main activity does not get notified because onResume() gets called first.

Where is the best place to prompt for login?

Answer 1

The call to onActivityResult happens before onResume, actually (see the docs). Are you sure you're actually starting the activity you wanted with startActivityForResult and that you're setting the result of the invoked activity to RESULT_OK before returning a value to your activity? Try just putting a Log statement in your onActivityResult to log that value and make sure that gets hit. Also, where are you setting the value of the isLoggedIn preference? It seems like you should be setting that to true in your login activity before it returns anyways, but that's clearly not happening.

Edit

The docs say:

You will receive this call immediately before onResume() when your activity is re-starting.