call requires api level 9 (current min is 7) java.text.normalizer#normalize

Question

I finished this game a month ago, and everything worked fine until today. I get error on line:

odgovorNormalized = Normalizer.normalize(konResenje, Normalizer.Form.NFD).replaceAll("[^\\p{ASCII}]", "");

If I go to manifest file and change API level to anything, even to 6, I don't get error anymore. Until I change something in my code.

I've just remembered that I changed encoding of my project to Latin today. I don't know if that has anything to do with this.

Everything worked fine until today.

Answer 1

The error is picked up by the static code analysis tools. Yes, it will compile, Yes, it will run. Yes, it will crash during runtime on any device with API < 9.

The proper thing to do is switch on the API:

    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.GINGERBREAD) {
        /* Use Normalizer normally */
    } else {
        /* Fall back on some default behavior */
    }

You can suppress errors like this, but always make sure you've fixed them first:

    @SuppressLint("NewApi")
    public void methodThatUsesNewAPI() {}