Passing highscore back to main menu

Question

I'm trying to send my high score back to the main menu. Here are my intents. However, it just crashes when trying to get back to the main menu. My logcat is also below. Any tips would be great.

GameActivity

public void finish(){
      Intent returnIntent = new Intent();
      returnIntent.putExtra("GAME_SCORE",(gameView.getHitCount()));
      setResult(RESULT_OK, returnIntent);
      super.finish();
    }

MainMenu

protected void onActivityResult(int requestCode, int resultCode, Intent retIntent) {
    // Check which request we're responding to
    if (requestCode == SCORE_REQUEST_CODE) {
        // Make sure the request was successful
        if (resultCode == RESULT_OK) {
            if (retIntent.hasExtra("GAME_SCORE")) {
                int scoreFromGame = retIntent.getExtras().getInt("GAME_SCORE");
                tvhiScore.setText(Integer.toString(scoreFromGame));
            }
        }   
    }

LogCat

  04-29 17:53:34.142: E/AndroidRuntime(1975): FATAL EXCEPTION: main
04-29 17:53:34.142: E/AndroidRuntime(1975): Process: cct.mad.lab, PID: 1975
04-29 17:53:34.142: E/AndroidRuntime(1975): java.lang.RuntimeException: Unable to instantiate activity ComponentInfo{cct.mad.lab/cct.mad.lab.MainMenu}: java.lang.NullPointerException
04-29 17:53:34.142: E/AndroidRuntime(1975):     at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2121)
04-29 17:53:34.142: E/AndroidRuntime(1975):     at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2245)

Also, are you sure you want to call `super.finish()`? it is probably not related with the question, but it is worth asking. — Emmanuel, Apr 29 '15 at 21:33
I don't understand how it's null though, the text is just being replaced which the scoreFromGame — Saffa, Apr 29 '15 at 21:35
TextView tvhiScore; is declared at the top, is this what you mean? — Saffa, Apr 29 '15 at 21:45
You need to find the `TextView` when the layout is inflated; e.g `tvhiscore = (TextView)findViewById(R.id.textviewname)` — Emmanuel, Apr 29 '15 at 21:47
Hi - yeah I added this TextView tvhiScore = (TextView) findViewById(R.id.tvhiScore); however it doesnt even run the game now! ill update the logcat — Saffa, Apr 29 '15 at 21:54

score 0 · Answer 1 · answered Apr 29 '15 at 22:37

0

Either the value of tvhiScore or scoreFromGame is null. Add a breakpoint and debug this line and find which value is null.

answered Apr 29 '15 at 22:37

Abdallah Alaraby

2,222
2
18
30

score 0 · Answer 2 · edited May 23 '17 at 11:43

0

you don't need returnIntent. use getIntent() and put extras
start your game activity in main activity with startActivityForResult(intent,request code)

this could help: https://stackoverflow.com/a/10407371/3487232

edited May 23 '17 at 11:43

Community

1
1

answered Apr 29 '15 at 22:41

Amir

1,250
18
22

Passing highscore back to main menu

2 Answers2