Android Initializing a String[] with getString values?

Question

I am trying to make a string array in Android... this works:

String titles[] = { "Matches", "Players" };

This does not:

String titles[] = { getString(R.string.matches), getString(R.string.players) };

How can I do what I'm trying to do?

java.lang.NullPointerException: Attempt to invoke virtual method 'android.content.res.Resources android.content.Context.getResources()' on a null object reference

We'd need a little bit more context. At the point where you're doing this, is there a fully-constructed Activity or Context instance available? — nanofarad
– nanofarad, Commented Jan 31, 2016 at 2:08
please edit your post to include more details, like the exact error you see. — Matt Clark
– Matt Clark, Commented Jan 31, 2016 at 2:13
Added the error... it doesnt matter if I put it after the Context or not... still the same error. — Jason Axelrod
– Jason Axelrod, Commented Jan 31, 2016 at 2:15

George Mulligan · Accepted Answer · 2016-01-31 02:25:36Z

2

You are probably trying to initialize your String[] as a class field and that is not allowed because you cannot yet access resources as shown in the exception.

Move the assignment into your onCreate method and it will work.

private String[] titles;

@Override
protected void onCreate(Bundle savedInstanceState) {
    ....
    titles = new String[] { getString(R.string.matches), getString(R.string.players) };
    ....
}

answered Jan 31, 2016 at 2:25

George Mulligan

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Comments

mikebrsv · Accepted Answer · 2016-01-31 02:11:04Z

0

Try this:

String titles[] = { getResources().getString(R.string.matches), getResources().getString(R.string.players) };

answered Jan 31, 2016 at 2:11

mikebrsv

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