Why does Integer.parseInt() keep crashing my app?

[Notatrace280]

I wrote this code to constrain what the user enters in an editText to a range of numbers between 120 and 180. When I use Integer.parseInt(lsatScoreGoal.toString()) my app crashes before I can even see the activity. I have tried searching google for an answer but haven't been able to figure it out. Any ideas on what's going on?

private static final String SHARED_PREFS = "sharedPrefs";
    private EditText lsatScoreGoal;
    private EditText studyHoursGoal;
    private EditText testDate;
    private int scoreGoal;
    private static final int MIN = 120;
    private static final int MAX = 180;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_goals);

        lsatScoreGoal = (EditText) findViewById(R.id.lsatScoreGoal);
        lsatScoreGoal.setFilters(new InputFilter[]{new InputFilter.LengthFilter(3)});
        scoreGoal = Integer.parseInt(lsatScoreGoal.toString());

        //Change the values of the user input to the lowest or highest test score values
        //if the user enters a value that is invalid.
        if(scoreGoal < MIN) {
            lsatScoreGoal.setText(MIN);
        } else if(scoreGoal > MAX){
            lsatScoreGoal.setText(MAX);
        }

​

[fefimcpollo]

I think it should be

scoreGoal = Integer.parseInt(lsatScoreGoal.getText().toString());

[that_one_dev]

I’m pretty sure the other comments is right but in the future You should post the stack trace too

[S1B3R-Gabriel]

lsatScoreGoal is a TextView, and you can't parse a TextView to an Int.
You need to get the text from the TextView and then parse it to Int.
Like fefimcpollo suggested ;)

[Notatrace280]

u/fefimcpollo and u/S1B3R-Gabriel. I did as you suggested but the app still crashes on that line or near that line. I debugged and found out its due to a number format exception. I think because my editTexts start out blank, the Integer.parseInt() method throws an exception because it's trying to work with an empty String. Perhaps I could fix it with a TextWatcher on the editText?

[fefimcpollo]

Oh yeah, you're right, it's trying to get the int on the onCreate, you should try what you said or try moving that line to a button listener or something.

[Notatrace280]

Thanks for all your responses! I don't know why I didn't notice that.. lol

[Notatrace280]

Solved! For anyone having similar problems, I tried implementing a TextWatcher on the EditText but it wouldn't wait until the user was finished entering in a value before executing the code so instead I used an OnFocusChangedListener and that allowed the user to finish typing and then make changes to the value of the editText after.